MAINFRAME DEVELOPER RESUME EXAMPLE

Published: Mar 11, 2026. The Mainframe Developer designs, develops, tests, and maintains enterprise applications on large-scale mainframe platforms using technologies such as COBOL, DB2, CICS, and JCL. This role focuses on optimizing batch processing, supporting mission-critical production systems, resolving technical incidents, and integrating legacy systems with modern enterprise environments. The Developer also collaborates with business analysts and engineering teams to enhance system reliability, improve processing efficiency, and deliver secure, high-performance solutions that support large-scale financial, retail, and enterprise operations.

Mainframe Developer Resume by Experience Level

1. Entry-Level Mainframe Developer Resume

Michael Turner

Charlotte, NC

(704) 555-1842

michael.turner.dev@gmail.com

linkedin.com/in/michaelturnerdev


SUMMARY

Results-driven Mainframe Developer with 1+ years of experience in COBOL development, batch processing, and enterprise data systems within financial services environments. Proven record of improving batch job efficiency 18% through optimized JCL and structured testing practices. Expertise in COBOL programming and DB2 database interaction to optimize application performance, mitigate operational failures, and drive measurable business outcomes across mission-critical mainframe platforms.


SKILLS

COBOL Programming

JCL Batch Processing

DB2 Database Queries

VSAM Data Management

CICS Transaction Processing

Mainframe Debugging

Unit Testing

SDLC Practices


EXPERIENCE

Mainframe Developer

Keystone Software Services, Pittsburgh, PA

June 2024 - Present

  • Develop COBOL batch modules supporting financial reporting systems, improving data processing throughput 15% through optimized file handling and VSAM indexing.
  • Execute unit testing and debugging of production fixes, achieving 98% defect resolution accuracy during QA validation cycles.
  • Maintain JCL scripts supporting nightly batch cycles handling 1.2M+ records, reducing job failure incidents from 12 per month to fewer than 3.
  • Document program logic and technical specifications, accelerating onboarding of new developers and reducing troubleshooting time by 20%.


Mainframe Developer Intern

Horizon Data Solutions, Columbus, OH

May 2023 - May 2024

  • Assisted in COBOL program enhancements for insurance claims processing systems handling $40M+ annual transactions.
  • Built test datasets and executed regression testing across DB2-backed applications, improving defect detection rates by 25%.
  • Supported batch job monitoring and failure analysis, enabling the resolution of 30+ production tickets during internship tenure.
  • Produced detailed technical documentation for system modules, improving development team reference efficiency during future releases.


EDUCATION

Bachelor of Science - Computer Science

University of North Carolina at Charlotte, Charlotte, NC

2. Junior-Level Mainframe Developer Resume

Daniel Carter

Dallas, TX

(214) 555-2963

daniel.carter.tech@gmail.com

linkedin.com/in/danielcartertech


SUMMARY

Results-driven Mainframe Developer with 5+ years of experience in COBOL application development, mainframe integration, and enterprise batch processing within banking and financial technology environments. Proven record of improving batch processing efficiency 27% and reducing production incidents through optimized JCL scheduling and code refactoring. Expertise in COBOL programming and DB2 performance tuning to optimize system reliability, mitigate operational risk, and drive measurable performance improvements across high-volume financial systems.


SKILLS

COBOL Programming

DB2 Performance Tuning

JCL Job Scheduling

CICS Transaction Systems

VSAM File Processing

Mainframe System Debugging

Production Support

SDLC Release Management


EXPERIENCE

Mainframe Developer

Blue Ridge Systems, Raleigh, NC

March 2022 - Present

  • Designed and implemented COBOL application enhancements supporting a banking transaction platform processing 3.5M daily records.
  • Optimized JCL batch jobs and DB2 queries, improving overnight processing speeds 27% and reducing batch window duration by 2.1 hours.
  • Resolved production incidents across CICS and batch environments, restoring service stability within SLA targets 96% of the time.
  • Led root-cause investigations of recurring system failures, eliminating 14 major defects and improving platform stability.


Mainframe Developer

Meridian Information Systems, Nashville, TN

January 2020 - February 2022

  • Developed COBOL modules supporting financial reporting systems that generated compliance data for $500M+ client portfolios.
  • Integrated new DB2 database procedures, improving transaction validation accuracy to 99.2%.
  • Executed regression testing and production deployment activities supporting quarterly system upgrades affecting 200K+ user accounts.
  • Created detailed system documentation and configuration guides, cutting troubleshooting time for new incidents 22%.


EDUCATION

Bachelor of Science - Information Technology

University of Texas at Dallas, Dallas, TX

3. Senior-Level Mainframe Developer Resume

Christopher Lawson

Phoenix, AZ

(602) 555-4438

christopher.lawson.it@gmail.com

linkedin.com/in/christopherlawson


PROFESSIONAL SUMMARY

Results-driven Mainframe Developer with 12+ years of experience in enterprise application modernization, COBOL development, and mainframe infrastructure optimization within large-scale financial and retail systems. Proven record of improving enterprise batch processing efficiency 35% while supporting platforms processing over $1B in annual transactions. Expertise in mainframe architecture and DB2 database optimization to optimize system performance, mitigate operational risk, and drive measurable enterprise technology outcomes.


CORE SKILLS

Enterprise Mainframe Development

COBOL System Engineering

DB2 Database Architecture

JCL Batch Optimization

CICS Transaction Systems

Legacy System Modernization

Production Incident Management

System Performance Tuning


EXPERIENCE

Mainframe Developer

CapitalTech Solutions, Austin, TX

April 2019 - Present

  • Architected enterprise COBOL solutions supporting portfolio management systems handling $1.3B annual investment transactions.
  • Optimized batch scheduling and JCL workflows, increasing overnight processing capacity 35% while reducing system downtime incidents.
  • Led modernization initiatives integrating mainframe systems with cloud-based services, enabling real-time data exchange across 15 enterprise applications.
  • Directed root cause analysis for high-impact incidents, cutting recurring system failures by 28% across mission-critical financial platforms.


Mainframe Developer

Redwood Business Systems, Sacramento, CA

May 2014 - March 2019

  • Developed and maintained COBOL and CICS applications supporting retail inventory systems serving 600+ store locations nationwide.
  • Implemented DB2 performance tuning strategies improving database query efficiency 31% across large-scale transaction datasets.
  • Delivered system upgrades and application enhancements that supported 5M+ daily transactions while maintaining 99.9% uptime.
  • Led cross-team development initiatives, improving deployment automation and accelerating release cycles by 40%.


EDUCATION

Bachelor of Science - Computer Engineering

Arizona State University, Tempe, AZ

Sample ATS-Friendly Work Experience for Mainframe Developer Roles

1. Mainframe Developer, Blue Ridge Systems, Raleigh, NC

  • Lead analysis of technology processes and system workflows across enterprise mainframe environments, synthesizing operational data and documentation to inform architecture decisions and strengthen platform stability across mission-critical applications.
  • Collaborate with business stakeholders, SMEs, and cross-functional engineering teams to translate complex enterprise requirements into technical solution designs supporting multi-system mainframe platforms serving several organizational departments.
  • Evaluate and implement appropriate Computer Aided Software Engineering tools within enterprise development environments, enabling standardized system design practices and improving delivery consistency across multiple concurrent software initiatives.
  • Architect and develop information technology systems by defining functional specifications, ensuring alignment with enterprise architecture standards and supporting reliable deployment of mission-critical mainframe applications.
  • Produce project deliverables and technical documentation for assigned initiatives, supporting coordinated delivery across development, testing, and operations teams while maintaining compliance with established enterprise development standards.
  • Provide post-implementation support and oversee system enhancements across operational mainframe platforms, resolving production issues and sustaining service continuity for high-availability enterprise workloads supporting thousands of users.


Core Skills:

  • Mainframe Systems Development
  • COBOL Application Programming
  • JCL Job Control
  • CICS Transaction Processing
  • Enterprise System Design
  • CASE Tool Utilization

2. Mainframe Developer, Horizon Data Solutions, Columbus, OH

  • Install and maintain z/OS, CICS, and associated enterprise mainframe software environments supporting mission-critical infrastructure, ensuring stable system operations and uninterrupted service delivery across production platforms.
  • Support configuration and maintenance of VTAM, TCP/IP, and IPsec networking components within enterprise mainframe environments, validating connectivity and executing system printer testing across multiple operational services.
  • Resolve complex technical incidents across mainframe infrastructure by coordinating internal engineering teams, external service providers, and vendor support resources to restore operational stability within strict service windows.
  • Establish and maintain operational procedures and governance standards for enterprise mainframe services, strengthening service delivery consistency and improving operational efficiency across technical services environments.
  • Contribute to system modernization and infrastructure initiatives by supporting project development and implementation across cross-functional engineering teams responsible for enterprise mainframe platform delivery.
  • Mentor technical staff within the Technical Services group while participating in a 24-hour on-call rotation, sustaining high-availability mainframe operations serving large enterprise user communities.


Core Skills:

  • z/OS System Administration
  • CICS Transaction Server
  • VTAM Network Management
  • TCPIP Mainframe Networking
  • IPsec Security Configuration
  • Mainframe Operations Support

3. Mainframe Developer, Summit Technology Group, Denver, CO

  • Develop and maintain COBOL/IDMS batch and online applications within enterprise mainframe environments, sustaining reliable transaction processing and data operations supporting mission-critical business systems across multiple operational departments.
  • Review existing COBOL/IDMS program structures and implement modifications aligned with formal technical specifications and approved change requests, ensuring continued system integrity across established enterprise application portfolios.
  • Analyze legacy application code to identify required enhancements from change requests, improving processing accuracy and maintaining compatibility across interconnected mainframe data management and transaction processing systems.
  • Engineer new COBOL/IDMS batch and online programs supporting enterprise application modernization initiatives, delivering scalable processing capabilities for high-volume operational workloads across core business platforms.
  • Create and maintain batch operating system jobs and production PROCS within enterprise scheduling frameworks, optimizing job execution reliability and supporting coordinated processing of large-scale nightly workloads.
  • Document functional specifications for mainframe jobs and online screens while executing SDLC-controlled promotions from development through user acceptance to production, maintaining disciplined enterprise release governance.


Core Skills:

  • COBOL Application Development
  • IDMS Database Programming
  • Mainframe Batch Processing
  • JCL Job Control
  • SDLC Release Management
  • Online Transaction Systems

4. Mainframe Developer, Keystone Software Services, Pittsburgh, PA

  • Deconstruct legacy enterprise systems through reverse engineering of complex application code, producing detailed technical documentation that clarifies system behavior and supports modernization and maintenance initiatives.
  • Validate software changes through structured regression testing across enterprise application environments, safeguarding production stability while confirming functional integrity after enhancements and defect remediation activities.
  • Track and manage software defects throughout the SDLC using enterprise testing frameworks, coordinating remediation activities across development and quality teams to strengthen release reliability.
  • Develop test data, automation assets, and reusable test scripts supporting enterprise release initiatives, improving validation efficiency across multiple application modules and iterative delivery cycles.
  • Document requirements, test scenarios, and traceability artifacts within ALM platforms while facilitating peer reviews, technical walkthroughs, and cross-functional working sessions supporting coordinated project delivery.
  • Advise project leadership on process improvements, requirements analysis, and interface design initiatives while mentoring team members and supporting Agile lifecycle deliverables across multi-team development programs.


Core Skills:

  • Legacy System Analysis
  • COBOL Code Review
  • ALM Test Management
  • Automated Regression Testing
  • Requirements Traceability
  • Agile SDLC Processes

5. Mainframe Developer, Redwood Business Systems, Sacramento, CA

  • Deliver application development and technical expertise across the full software development lifecycle, including design, build, release, and production deployment for enterprise software systems supporting critical customer services.
  • Contribute technical solution options, high-level architecture concepts, and implementation estimates during discovery phases, producing detailed design documentation guiding enterprise-scale development and system integration initiatives.
  • Enforce development standards and engineering best practices across application delivery, ensuring all software components align with specifications and maintain consistent quality across enterprise technology environments.
  • Collaborate with cross-functional stakeholders, distributed engineering teams, and offshore product groups to coordinate delivery of system enhancements supporting diverse customer-facing platforms and operational services.
  • Advise customers and partner development teams through professional technical consultations on enterprise products, strengthening solution adoption and accelerating integration across client technology environments.
  • Design program logic for new enterprise applications while enhancing existing systems, sustaining reliable production operations through participation in application support rotations and rapid issue resolution.


Core Skills:

  • Enterprise Application Development
  • Software Architecture Design
  • Production Release Management
  • Cross-Team Collaboration
  • Application Production Support
  • Program Logic Engineering

6. Mainframe Developer, Meridian Information Systems, Nashville, TN

  • Engineer high-quality application code aligned with established development standards and architectural principles within enterprise systems, ensuring reliable software components supporting complex operational environments and business-critical services.
  • Develop comprehensive unit tests and maintain required code coverage thresholds, strengthening software reliability and reducing production defects across enterprise application releases and system enhancements.
  • Own quality and delivery timelines for assigned development initiatives, operating with minimal supervision while producing consistent results within complex enterprise technology and project environments.
  • Collaborate with IT leadership and business stakeholders to evaluate complex user requests, translating functional requirements into structured technical specifications supporting enhancements to enterprise software platforms.
  • Diagnose system issues by analyzing error messages, modifying application code, and troubleshooting programming problems, restoring application stability across interconnected enterprise systems and production environments.
  • Document program logic, development processes, and system corrections while contributing to user manuals and operating procedures, strengthening operational knowledge transfer across technical and business teams.


Core Skills:

  • Enterprise Application Coding
  • Structured Systems Analysis
  • Unit Test Development
  • Program Troubleshooting
  • Technical Documentation
  • Requirements Analysis

7. Mainframe Developer, Atlantic Software Solutions, Jacksonville, FL

  • Ensure enterprise system availability by applying business and technical expertise to deliver reliable software solutions supporting critical operational platforms and evolving enterprise application requirements.
  • Lead systems analysis and high-level architecture design for new and enhanced enterprise applications, translating complex business objectives into scalable technical frameworks across interconnected platforms.
  • Direct small-scale project initiatives while providing technical leadership on complex system assignments, coordinating development efforts and maintaining delivery alignment with enterprise technology standards.
  • Guide and mentor junior developers on system architecture and business impacts of supported applications, strengthening technical capability and design consistency across distributed engineering teams.
  • Define business and technical requirements for system enhancements and new initiatives, producing detailed specifications that support disciplined development, testing, and implementation across enterprise software environments.
  • Conduct quality walkthroughs and execute complex system test strategies while documenting cross-system dependencies, enabling continuous improvement and safeguarding enterprise platform stability across multiple functional domains.


Core Skills:

  • Enterprise Systems Analysis
  • Application Architecture Design
  • Software Quality Assurance
  • Technical Team Leadership
  • Systems Integration Planning
  • Requirements Engineering

8. Mainframe Developer, NorthStar Technology Services, Minneapolis, MN

  • Direct maintenance and support operations for a complex enterprise application portfolio, organizing technical teams to sustain required system availability, reliability, and service-level performance across critical business platforms.
  • Manage development teams delivering enhancement, maintenance, and project solution packages, ensuring adherence to enterprise engineering standards and structured delivery processes across multiple concurrent initiatives.
  • Advise and coach mid-level developers and analysts while allocating technical assignments, strengthening team capability and maintaining consistent engineering practices within large-scale application support environments.
  • Resolve high-impact operational and project issues through deep evaluation of business workflows, system architectures, and industry practices, restoring operational stability across complex enterprise application ecosystems.
  • Perform comprehensive analytical assessments of enterprise systems and business processes, applying interpretive problem-solving to identify root causes and develop practical technical solutions.
  • Coordinate cross-functional technical activities while guiding system support strategies, enabling consistent service delivery and long-term reliability across integrated enterprise application environments.


Core Skills:

  • Application Support Leadership
  • Enterprise Systems Maintenance
  • Technical Team Management
  • Complex Systems Analysis
  • Production Support Operations
  • Enterprise Solution Delivery

9. Mainframe Developer, Silverline Data Systems, Salt Lake City, UT

  • Advance DevOps engineering maturity by solving complex infrastructure and automation challenges, strengthening enterprise delivery pipelines, operational resilience, and collaborative engineering practices across evolving software platforms.
  • Develop automation scripts and engineering code supporting emerging platforms and products with minimal precedent, promoting collaborative coding standards through code reviews and continuous technical feedback across development teams.
  • Architect solutions for fault tolerance, performance optimization, and configuration management, improving reliability and operational efficiency of enterprise applications operating across distributed technology environments.
  • Integrate development and delivery pipelines from design through production operations, coordinating software releases that ensure stable deployment and sustained performance of enterprise software systems.
  • Analyze application architecture requirements to ensure availability, scalability, and latency targets while conducting root cause investigations for production incidents and rapidly implementing corrective engineering improvements.
  • Build and maintain automation tools supporting software release processes, monitor application environments for long-term trends, and mentor engineering teams while establishing durable DevOps best practices across cross-functional technology groups.


Core Skills:

  • DevOps Engineering
  • Infrastructure Automation
  • Release Pipeline Management
  • Fault Tolerance Design
  • Production Incident Analysis
  • Configuration Management

10. Mainframe Developer, HarborPoint Technologies, Baltimore, MD

  • Conduct root cause analysis, coding, unit testing, and defect remediation across enterprise application environments, producing structured test case documentation that strengthens software reliability and controlled release readiness.
  • Support production operations by monitoring batch job execution, resolving high-priority user incidents, and restoring service stability across enterprise platforms operating under strict availability expectations.
  • Maintain detailed documentation of code changes, configuration updates, incident tickets, and remediation activities, ensuring traceability and operational transparency across enterprise support and development environments.
  • Administer AS400 application support and performance tuning activities, analyzing system behavior and implementing optimization measures that improve processing efficiency within business-critical platforms.
  • Investigate application and database defects through technical troubleshooting and analytical research, delivering corrective solutions that restore system functionality and reduce recurring operational issues.
  • Collaborate with business users and management teams to gather requirements, develop system enhancements, execute user acceptance testing, and produce technical specifications supporting evolving enterprise application demands.


Core Skills:

  • AS400 System Support
  • Batch Job Monitoring
  • Root Cause Analysis
  • Database Issue Resolution
  • Application Defect Troubleshooting
  • Technical Specification Writing

11. Mainframe Developer, PrairieTech Solutions, Omaha, NE

  • Maintain mission-critical legacy platform support, troubleshooting incidents and restoring service continuity across enterprise transaction systems, sustaining 99.9% operational availability for thousands of internal and external users.
  • Orchestrate phased migration initiatives transitioning legacy functionality to replacement platforms, converting data and building interim integrations supporting retirement of 30+ application modules.
  • Evaluate modification and integration strategies for existing enterprise applications, determining optimal enhancement approaches that minimize operational disruption across multi-system technology environments.
  • Coordinate with business analysts, users, and external vendors to define design specifications, testing criteria, and operational procedures across 5+ concurrent enhancement initiatives.
  • Engineer application enhancements, executing design, development, validation, and deployment activities that introduce new capabilities while preserving stability across large-scale production service environments.
  • Document operational solutions, deliver project status reporting, cross-train engineering staff, and support acceptance, remediation, and integration testing, ensuring sustainable maintenance for evolving enterprise applications.


Core Skills:

  • Mainframe Application Support
  • Legacy System Migration
  • Data Conversion Integration
  • Application Enhancement Development
  • Enterprise Release Deployment
  • Production Incident Resolution

12. Mainframe Developer, Canyon Ridge Software, Phoenix, AZ

  • Establish comprehensive monitoring frameworks to oversee enterprise platform health, ensuring sustained availability and operational visibility across critical application infrastructure supporting large-scale software delivery environments.
  • Integrate and onboard new and existing products into enterprise delivery pipelines, coordinating release readiness across multiple development streams to accelerate reliable deployment cycles.
  • Engineer automation software and platform tooling that manage infrastructure and applications, strengthening reliability, improving product quality, and shortening enterprise software release timelines.
  • Collaborate with product and test engineering teams to optimize system performance, ensuring validated production builds are delivered consistently at scheduled release milestones.
  • Design operational tooling and supporting systems that enhance infrastructure management and improve stability across distributed enterprise application environments supporting continuous delivery pipelines.
  • Maintain detailed technical documentation covering engineering tools, operational processes, and delivery workflows, enabling consistent knowledge transfer and sustainable platform operations.


Core Skills:

  • Platform Reliability Engineering
  • Delivery Pipeline Integration
  • Infrastructure Automation
  • System Performance Optimization
  • Production Build Management
  • Technical Process Documentation

13. Mainframe Developer, Great Lakes Information Systems, Cleveland, OH

  • Develop, maintain, enhance, and test enterprise client systems of moderate to high complexity, ensuring stable application performance and reliable functionality across multi-tier production technology environments.
  • Diagnose production incidents across services and application stack layers, resolving escalations and conducting structured post-incident reviews that strengthen operational resilience and service reliability.
  • Analyze operating system and application metrics to support performance tuning and fault isolation, improving system efficiency and stability across enterprise infrastructure and client-facing platforms.
  • Automate development and release workflows while building internal engineering tools and infrastructure, accelerating deployment cycles and improving consistency across enterprise software delivery pipelines.
  • Serve as primary technical liaison on complex client engagements, coordinating resolution of high-impact system, data, and software issues within mission-critical production environments.
  • Evaluate emerging platforms and technologies while designing partner integrations and new application features, supporting strategic system evolution and strengthening enterprise service capabilities.


Core Skills:

  • Enterprise System Development
  • Production Incident Resolution
  • Performance Metrics Analysis
  • Release Process Automation
  • Strategic System Integration
  • Cloud Cost Optimization

14. Mainframe Developer, Liberty Software Group, Charlotte, NC

  • Engineer, test, and deploy high-quality application code across multiple programming environments, ensuring reliable software delivery and consistent adherence to enterprise engineering standards.
  • Collaborate with product owners, business stakeholders, customers, and technology partners to align technical solutions with organizational objectives across diverse enterprise initiatives.
  • Evaluate alternative technical strategies and architectural approaches, encouraging balanced decision-making that improves solution quality across complex development programs.
  • Drive completion of assigned initiatives and projects, coordinating development activities to deliver successful outcomes within defined scope and delivery timelines.
  • Deliver technical solutions across Agile, Waterfall, and iterative methodologies, supporting disciplined engineering practices and consistent execution of enterprise software delivery frameworks.
  • Guide and mentor development teams on technical design and implementation practices, strengthening engineering capability and architectural consistency across collaborative development environments.


Core Skills:

  • Enterprise Software Development
  • Technical Solution Design
  • Agile Delivery Practices
  • Cross-Stakeholder Collaboration
  • Application Deployment Management
  • Developer Technical Mentoring

15. Mainframe Developer, Frontier Data Technologies, Boise, ID

  • Maintain analytical tooling and diagnostic capabilities to investigate enterprise batch processing failures, enabling rapid incident identification and restoring operational stability across mission-critical data processing environments.
  • Coordinate incident resolution activities while driving continuous technical process improvements that strengthen reliability and operational efficiency across enterprise application support frameworks.
  • Administer technical support documentation and execute controlled software deployments within formal change management governance, supporting regulated enterprise production environments.
  • Engineer small-scale application enhancements responding to business change requests while delivering structured information support for external audit activities across regulated operational systems.
  • Collaborate across distributed technical teams to sustain shared knowledge repositories and maintain accurate operational documentation supporting enterprise system continuity.
  • Engage business stakeholders and technology partners to deliver responsive technical services that sustain reliable operation of critical enterprise application platforms.


Core Skills:

  • Batch Failure Analysis
  • Incident Resolution Management
  • Change Management Deployment
  • Technical Support Documentation
  • Application Enhancement Development
  • Cross-Team Collaboration

16. Mainframe Developer, Sierra Systems Engineering, Reno, NV

  • Develop and support Tier 1 portfolio management applications within enterprise mainframe environments, delivering reliable functionality for high-value financial systems operating under strict availability requirements.
  • Collaborate with technical leads and development teams to design, build, and enhance complex applications supporting enterprise investment management platforms and critical transaction processing workloads.
  • Contribute to Agile delivery teams by implementing application features, supporting deployments, and maintaining stable production components across continuously evolving enterprise systems.
  • Engineer and implement technical designs for complex applications leveraging core mainframe technologies, ensuring scalable solutions across large-scale financial technology environments.
  • Maintain and enhance production system components, troubleshooting operational issues and sustaining uninterrupted service across enterprise portfolio management platforms serving institutional users.
  • Develop enterprise applications utilizing COBOL, DB2, JCL, CICS, MQ, VSAM, and related mainframe technologies, delivering secure and high-performance processing within regulated financial systems.


Core Skills:

  • COBOL Application Development
  • DB2 Database Programming
  • CICS Transaction Processing
  • JCL Batch Processing
  • Mainframe MQ Integration
  • VSAM Data Management

17. Mainframe Developer, CapitalTech Solutions, Austin, TX

  • Develop and support transaction processing applications within TPF mainframe environments, sustaining reliable operation of high-volume airline and travel reservation systems across enterprise production platforms.
  • Analyze and document legacy TPF assembler code, producing structured technical documentation that informs requirements for migration to Sabre’s next-generation open systems platform.
  • Translate complex TPF assembler segments into functional documentation, enabling cross-platform development teams to understand legacy system behavior and application dependencies.
  • Collaborate with open systems engineering teams by interpreting existing TPF modules and resolving functional inquiries supporting modernization of travel reservation platforms.
  • Embed within Dallas-based Scrum teams to contribute technical expertise, ensuring consistent delivery of modernization tasks within Agile development cycles.
  • Support travel domain technology initiatives by applying TPF development knowledge within Sabre-related environments that process large-scale airline reservation and booking transactions.


Core Skills:

  • TPF Assembler Development
  • Mainframe Code Analysis
  • Legacy System Documentation
  • Open Systems Migration
  • Agile Scrum Collaboration
  • Travel Reservation Systems

18. Mainframe Developer, IronBridge Technology, Birmingham, AL

  • Estimate, analyze, design, and implement mainframe application enhancements through iterative development cycles, delivering high-quality code increments that support reliable enterprise system functionality.
  • Investigate and resolve complex application defects through structured root cause analysis and debugging across multiple mainframe programming environments supporting mission-critical enterprise platforms.
  • Execute comprehensive software testing and quality assurance activities, validating functional accuracy and ensuring application stability across enterprise mainframe development and maintenance initiatives.
  • Produce and maintain detailed technical documentation including configuration guides, installation procedures, and system design artifacts supporting long-term maintainability of enterprise applications.
  • Integrate newly developed software components with existing enterprise systems, ensuring compatibility and seamless interaction across interconnected mainframe technology environments.
  • Track and report development and maintenance progress in accordance with established SDLC governance while maintaining effective communication with technical teams and project stakeholders.


Core Skills:

  • Mainframe Application Development
  • Root Cause Analysis
  • Software Quality Assurance
  • System Integration Engineering
  • Technical Documentation
  • SDLC Process Management

19. Mainframe Developer, Evergreen Data Systems, Portland, OR

  • Develop and enhance enterprise applications based on evolving client business requirements, delivering reliable software solutions that support operational continuity across interconnected enterprise technology platforms.
  • Provide daily production support by monitoring application activity, resolving service tickets, and presenting technical findings that sustain stable operations for client-facing systems.
  • Collaborate with customers and internal engineering teams to gather and clarify development requirements, translating operational needs into actionable technical solutions.
  • Investigate and resolve issues across interfacing applications, coordinating with development and support teams to restore functionality across integrated enterprise system environments.
  • Document production incidents and remediation activities while maintaining centralized knowledge repositories that improve long-term operational support and troubleshooting efficiency.
  • Execute application maintenance requests independently within complex support environments, managing multiple priorities while sustaining reliable performance of enterprise application services.


Core Skills:

  • Application Production Support
  • Enterprise Application Enhancement
  • Incident Resolution Management
  • Requirements Gathering
  • System Integration Troubleshooting
  • Technical Knowledge Management

20. Mainframe Developer, Granite Peak Technologies, Manchester, NH

  • Engineer scalable data-driven solutions supporting enterprise platforms serving millions of global retail customers, transforming large-scale data assets into operational capabilities across Walmart’s technology ecosystem.
  • Collaborate with distributed data science teams to evaluate complex engineering challenges and design platform capabilities enabling advanced analytics and machine learning experimentation.
  • Research and evaluate open-source technologies through proof-of-concept initiatives and community collaboration, selecting optimal tools that accelerate enterprise product feature delivery.
  • Deploy and monitor enterprise applications across cloud platforms, maintaining reliable system performance and operational visibility for large-scale data processing services.
  • Develop and implement services enabling scalable deployment of machine learning models, supporting high-volume prediction workloads across enterprise retail intelligence platforms.
  • Partner with product management and business leaders to prioritize platform initiatives while promoting organizational standards, ensuring technology delivery aligns with company ethics, policies, and strategic objectives.


Core Skills:

  • Cloud Platform Engineering
  • Machine Learning Deployment
  • Data Platform Development
  • Open Source Evaluation
  • Enterprise Data Engineering
  • Scalable Service Architecture

21. Mainframe Developer, Coastal Information Systems, Charleston, SC

  • Lead multidisciplinary engineering teams delivering enterprise application solutions across Java, .NET, SAP, PeopleSoft, and integration platforms, establishing performance goals, mentoring staff, and driving talent development.
  • Direct departmental technology strategy by developing operational plans that optimize engineering resources, align delivery initiatives with organizational objectives, and strengthen enterprise system capabilities.
  • Oversee complex application support and incident resolution activities, coordinating internal teams and external vendors to restore system stability across high-impact enterprise production environments.
  • Define technical architectures, project scope, and infrastructure requirements while providing cost estimates supporting enterprise technology initiatives and large-scale system implementations.
  • Govern enterprise architecture, security, and compliance standards across software deployments, coordinating integration design, database architecture, and high-risk technical solution validation across multiple engineering teams.
  • Drive DevOps engineering practices on AWS by automating continuous delivery pipelines, leveraging DynamoDB-based data architectures, and ensuring scalable microservice ecosystems through Scrum-driven development processes.


Core Skills:

  • Enterprise Application Leadership
  • AWS DevOps Engineering
  • DynamoDB Data Architecture
  • Enterprise Systems Integration
  • Technical Architecture Governance
  • Agile Scrum Delivery

22. Mainframe Developer, Pioneer Software Services, Kansas City, MO

  • Resolve complex customer incidents across Ubuntu, OpenStack, and Kubernetes environments, delivering high-quality engineering fixes that sustain reliability across enterprise cloud infrastructure supporting global production deployments.
  • Collaborate with Canonical field engineers, support specialists, and product engineering teams to diagnose system issues and coordinate effective remediation across distributed cloud platforms.
  • Develop patches, backport fixes, and contribute code upstream, strengthening open-source ecosystem stability while ensuring enterprise-grade solutions are integrated into production environments.
  • Debug complex platform issues and produce production-quality code improvements while conducting peer code reviews that reinforce engineering quality across distributed development teams.
  • Participate actively in upstream communities and technical discussions, influencing platform improvements and promoting collaborative innovation across global open-source engineering ecosystems.
  • Coordinate work priorities and maintain clear technical communication across distributed teams while contributing to process, tooling, and documentation improvements supporting scalable engineering operations.


Core Skills:

  • Ubuntu Systems Engineering
  • OpenStack Cloud Infrastructure
  • Kubernetes Platform Operations
  • Open Source Development
  • Distributed Systems Debugging
  • Cloud Platform Support

23. Mainframe Developer, Falcon Ridge Technology, Indianapolis, IN

  • Engineer, integrate, test, deploy, and maintain enterprise software applications across corporate business platforms, delivering reliable functionality supporting high-volume operational systems and evolving business service requirements.
  • Provide continuous production support and performance tuning across enterprise applications, monitoring incidents and restoring service stability for systems supporting thousands of internal business users.
  • Participate in project planning and contribute technical guidance that shapes development environments, tools, and engineering methodologies across multiple concurrent enterprise software initiatives.
  • Lead developers in application support and maintenance activities, coordinating troubleshooting efforts and implementing permanent corrective solutions that reduce recurring operational defects across interconnected systems.
  • Execute scheduled system maintenance, regulatory updates, and optimization initiatives across a portfolio of enterprise applications, improving operational efficiency across 20+ maintained business systems.
  • Consult with project teams on application architecture and development practices while managing team task assignments and maintaining engineering standards across enterprise software delivery operations.


Core Skills:

  • Enterprise Application Development
  • Production Incident Management
  • Application Performance Tuning
  • Software Deployment Management
  • Enterprise System Maintenance
  • Technical Team Leadership

24. Mainframe Developer, DeltaPoint Systems, New Orleans, LA

  • Design, develop, implement, and test enterprise software solutions in collaboration with development teams, enhancing existing applications while ensuring alignment with business requirements and established engineering standards.
  • Investigate and resolve complex operational issues across integrated application environments, coordinating with cross-functional engineering teams to restore reliable system performance.
  • Deliver high-quality technical and architectural documentation while consistently meeting delivery deadlines across iterative enterprise development initiatives.
  • Provide technical guidance supporting engineering direction in partnership with senior leadership, strengthening design consistency and solution quality across distributed development teams.
  • Develop backend APIs and system integrations enabling scalable application functionality supporting high-volume mobile gaming platforms and digital service ecosystems.
  • Influence feature prioritization and drive engineering innovation for Guild of Guardians, contributing to scalable platform development within a rapidly growing global blockchain gaming environment.


Core Skills:

  • Backend API Development
  • System Integration Engineering
  • Application Issue Resolution
  • Enterprise Software Development
  • Technical Architecture Documentation
  • Agile Engineering Collaboration

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Strong resumes highlight measurable achievements, relevant skills, and clear formatting that recruiters can scan quickly.

How often should you update your resume?

Update your resume whenever you gain new skills, complete important projects, or receive promotions.

Editorial Process

Lamwork content is developed through structured review of publicly available job postings and documented hiring trends.

Editorial operations are managed by Thanh Huyen, Managing Editor, with research direction and final oversight by Lam Nguyen, Founder & Editorial Lead. Content is periodically reviewed to reflect observable labor market changes.