ACTIVE DIRECTORY ENGINEER RESUME EXAMPLE

• Monitored Active Directory health and resolved tickets within SLA, improving response times by 20% across 5,000+ user accounts.
• Supported domain controller operations and applied Windows patches, reducing system vulnerabilities by 25%.
• Assisted in user provisioning and access management, ensuring 100% compliance with security policies.
• Documented troubleshooting procedures and system configurations, improving knowledge sharing efficiency by 30%.

• Assisted with Active Directory administration and Group Policy updates, supporting 2,000+ users across multiple departments.
• Troubleshot authentication and access issues, reducing repeat incidents by 15% through standardized resolutions.
• Participated in migration and upgrade projects, improving system performance by 10%.
• Supported backup and recovery tasks, ensuring data availability and compliance with BCP requirements.

Michael Reynolds

Charlotte, NC

(704) 555-9274

michael.reynolds.tech@gmail.com

https://www.linkedin.com/in/michaelreynolds-ad

SUMMARY

Results-driven Active Directory Engineer with 4+ years of experience in Active Directory, Azure AD, and Identity Access Management within enterprise IT environments. Proven record of reducing authentication failures by 30% through infrastructure optimization. Expertise in PowerShell Automation and Group Policy to optimize directory services, mitigate security risks, and improve operational efficiency across hybrid environments.

SKILLS

Active Directory

Azure AD

Group Policy

PowerShell Automation

Identity Management

Access Governance

EXPERIENCE

Active Directory Engineer

Pinnacle Data Systems, Charlotte, NC

March 2022 – Present

• Administered hybrid Active Directory and Azure AD environments supporting 12,000+ users, improving system uptime to 99.9%.
• Implemented Group Policy optimization initiatives, reducing policy processing time by 25% across enterprise systems.
• Resolved Level 3 authentication and federation issues, decreasing incident volume by 30%.
• Automated administrative tasks using PowerShell, reducing manual workload by 35% and improving consistency.

Systems Administrator

VectorCore Technologies, Raleigh, NC

July 2020 – February 2022

• Managed Windows Server environments and Active Directory services, supporting 6,000+ users across multiple domains.
• Executed system upgrades and patching cycles, reducing vulnerabilities by 28%.
• Investigated system logs and resolved performance issues, improving system efficiency by 20%.
• Assisted in identity integration projects, enabling secure access for 40+ enterprise applications.

EDUCATION

Bachelor of Science in Computer Information Systems

North Carolina State University

Jonathan A. Whitaker

Seattle, WA

(206) 555-6641

jonathan.whitaker@protonmail.com

https://www.linkedin.com/in/jonathanawhitaker

PROFESSIONAL SUMMARY

Results-driven Active Directory Engineer with 10+ years of experience in Active Directory, Azure AD, and Identity Security within enterprise cloud and infrastructure environments. Proven record of reducing security incidents by 45% through Zero Trust architecture implementation. Expertise in Identity Governance and Infrastructure Design to optimize directory services, mitigate cyber risks, and drive scalable, secure identity platforms across global organizations.

CORE SKILLS

Active Directory

Azure AD

Identity Security

Zero Trust

Access Control

Infrastructure Design

EXPERIENCE

Senior Active Directory Engineer

Evergreen Cloud Services, Seattle, WA

January 2020 – Present

• Architected global Active Directory and Azure AD environments supporting 25,000+ users, improving scalability and security posture by 40%.
• Led Zero Trust and privileged access initiatives, reducing lateral movement risks by 45% across identity infrastructure.
• Directed domain consolidation and migration projects, lowering administrative overhead by 30% across multi-forest environments.
• Served as escalation lead for complex incidents, reducing mean time to resolution by 35% and improving system reliability.

Active Directory Engineer

Cascade Infrastructure Group, Bellevue, WA

June 2016 – December 2019

• Engineered and maintained enterprise AD infrastructure, achieving 99.9% uptime across distributed environments.
• Implemented federation, MFA, and identity integrations for 60+ applications, reducing authentication issues by 30%.
• Developed PowerShell automation frameworks, improving operational efficiency by 40%.
• Produced architecture documentation and guided L2/L3 teams, improving troubleshooting efficiency by 25%.

EDUCATION

Bachelor of Science in Information Systems

University of Washington

• Administered enterprise Active Directory environments across multiple domains and forests, managing 10,000+ user, group, service, and computer accounts while ensuring compliance with organizational security policies.
• Streamlined Group Policy lifecycle by auditing and consolidating 200+ GPOs, eliminating redundancies, and improving policy processing performance by 30% across distributed infrastructure environments.
• Engineered PowerShell automation scripts to standardize provisioning and maintenance tasks, reducing manual administrative workload by 40% and increasing operational consistency across identity management processes.
• Maintained SAML federation services integrating 15+ SaaS platforms, resolving authentication issues, and improving single sign-on reliability to achieve 99.9% uptime for critical business applications.
• Advised on Active Directory architecture improvements, conducting detailed reviews and implementing best-practice changes that enhanced directory structure scalability and reduced administrative overhead by 25%.
• Guided and supported L1 administrators by troubleshooting escalations, delivering technical direction, and strengthening team capability, resulting in 20% faster incident resolution and improved service delivery quality.

Core Skills:

• Active Directory
• Group Policy
• PowerShell Automation
• SAML Federation
• Identity Management
• AD Architecture

• Consulted with stakeholders to gather identity and access requirements, designing Active Directory solutions, including domain builds and GPO strategies that improved deployment efficiency by 25% across enterprise environments.
• Architected and deployed secure AD infrastructures, implementing security hardening baselines and managing 300+ Group Policy Objects to enforce compliance and reduce vulnerability exposure by 35%.
• Troubleshot cross-platform identity issues involving Exchange, Skype, SharePoint, OneDrive, networking, and storage teams, resolving escalations 30% faster while minimizing business disruption across integrated systems.
• Introduced advanced identity technologies, including Forefront Identity Manager and DirectAccess, enabling secure remote access and automated identity lifecycle management for over 8,000 enterprise users.
• Collaborated with vendors to resolve critical defects, applying patches and upgrades, including Windows Server migrations from 2008R2 to 2012, improving system stability and reducing downtime incidents by 40%.
• Governed Active Directory operations through incident management, on-call support, and policy enforcement, maintaining 99.9% availability while strengthening access controls and ensuring audit-ready security compliance.

Core Skills:

• Active Directory
• Group Policy
• Identity Federation
• Windows Server
• Access Control
• PowerShell Automation

• Authored comprehensive engineering documentation defining Active Directory standards, configurations, and operational procedures, improving knowledge transfer effectiveness by 35% and ensuring consistent implementation across enterprise infrastructure teams.
• Led complex Active Directory upgrade and re-architecture initiatives across 2008–2012 environments, modernizing legacy systems and increasing directory performance, scalability, and resilience for 10,000+ users.
• Integrated BlueCat DNS with Active Directory services, optimizing name resolution and reducing DNS-related incidents by 30% while enhancing overall network reliability and service availability.
• Developed automation scripts and scheduled tasks using PowerShell and system tools, decreasing manual intervention by 40% and accelerating routine administrative operations across distributed environments.
• Presented technical strategies and performance metrics to senior leadership, translating complex infrastructure data into actionable insights that supported funding decisions and improved project delivery outcomes by 20%.
• Mentored engineering teams and collaborated with vendors to resolve critical issues, strengthening cross-functional alignment and improving incident resolution efficiency by 25% across infrastructure support operations.

Core Skills:

• Active Directory
• DNS Integration
• PowerShell Scripting
• System Automation
• Infrastructure Design
• Certificate Services

• Directed Active Directory operational roadmap encompassing patching, fixes, and upgrades, aligning lifecycle strategies with business priorities, and improving system reliability metrics by 30% across enterprise environments.
• Ensured directory services met strict SLAs for availability, capacity, and performance, consistently maintaining 99.9% uptime while proactively resolving capacity constraints impacting over 12,000 users.
• Optimized identity and access management processes by enforcing governance for user provisioning and security groups, reducing access-related incidents by 25% and strengthening compliance with security standards.
• Resolved complex synchronization and authentication issues across Exchange, O365, ADFS, and Intune environments, improving service continuity and decreasing user-impacting incidents by 35% through targeted troubleshooting.
• Maintained and updated technical and operational documentation aligned with standards, ensuring audit readiness and improving knowledge accessibility for cross-functional teams supporting multi-domain infrastructure.
• Represented IAM in large-scale technology initiatives, collaborating with stakeholders to enhance service delivery and drive continuous improvement opportunities that increased operational efficiency by 20% organization-wide.

Core Skills:

• Active Directory
• Identity Management
• Access Governance
• ADFS Integration
• O365 Sync
• Intune Policies

• Analyzed legacy Active Directory domains to define migration strategy, identifying dependencies and risks while enabling seamless consolidation into target environments supporting over 15,000 directory objects.
• Developed structured rollout plans including testing and pilot phases, reducing migration-related incidents by 30% and ensuring controlled deployment across complex multi-domain infrastructures.
• Rationalized approximately 700 Group Policy Objects, eliminating redundancies and consolidating configurations to improve policy efficiency and reduce processing overhead by 25% enterprise-wide.
• Migrated more than 4,000 computer objects and 2,700 groups, validating compatibility with updated policies and minimizing operational disruption during large-scale directory transformation initiatives.
• Executed comprehensive cleanup of inactive users, devices, and empty groups, improving directory hygiene and reducing security exposure by 40% before final domain integration.
• Reported migration progress to leadership and documented outcomes, while decommissioning tools and legacy components to ensure stable post-migration operations and long-term maintainability.

Core Skills:

• Active Directory
• Domain Migration
• Group Policy
• Directory Cleanup
• Identity Management
• Infrastructure Planning

• Administered enterprise Active Directory across on-premises and Azure AD environments, supporting 100,000+ users, ensuring high availability, security compliance, and consistent identity services across distributed systems.
• Executed domain controller lifecycle operations and managed organizational units and Group Policies, improving administrative delegation efficiency and reducing configuration errors by 25% across complex environments.
• Collaborated with cross-functional teams to integrate applications with Active Directory, enabling seamless authentication and authorization for 50+ systems while minimizing access-related disruptions.
• Analyzed operational data to identify root causes and service improvement opportunities, reducing recurring incidents by 30% and enhancing overall directory service performance and reliability.
• Maintained backup and recovery strategies for Active Directory, ensuring rapid restoration capabilities and achieving recovery time objectives within 2 hours during critical failure scenarios.
• Resolved service tickets and supported complex configurations, improving issue resolution time by 20% while assisting stakeholders in implementing scalable and secure identity management solutions.

Core Skills:

• Active Directory
• Azure AD
• Group Policy
• Identity Integration
• Backup Recovery
• Access Management

• Engineered and maintained Windows-based infrastructure environments, designing and implementing hardware and software solutions that improved system scalability and reliability across enterprise server platforms.
• Evaluated system stability, security, and performance, initiating upgrades and enhancements that reduced vulnerabilities by 30% while ensuring consistent compliance with organizational security standards.
• Deployed and upgraded Windows servers in collaboration with IT leadership, modernizing infrastructure and increasing operational efficiency for critical business applications supporting 5,000+ users.
• Diagnosed system errors and resolved user-reported issues, improving incident response times by 25% through proactive log analysis and structured troubleshooting methodologies.
• Administered user access controls and IAM configurations, defining roles and permissions aligned with best practices to strengthen governance and reduce unauthorized access risks by 20%.
• Collaborated with operations teams to implement IAM solutions into production, ensuring secure deployment processes and maintaining system backups to support rapid recovery and business continuity.

Core Skills:

• Active Directory
• Windows Server
• Identity Access
• Access Control
• System Security
• Infrastructure Design

• Engineered and administered hybrid identity environments across on-premises and Azure Active Directory, supporting 20,000+ users while ensuring secure, scalable authentication and directory service operations.
• Designed and implemented identity solutions integrating enterprise platforms, including SAP IAS, ADP, and Benefitfocus, improving access reliability and reducing authentication-related incidents by 30%.
• Led domain consolidation initiatives, planning and executing complex transformations that streamlined directory structures and reduced administrative overhead by 25% across multi-domain environments.
• Resolved advanced level 3 and 4 escalations within SLA targets, enhancing system stability and decreasing high-severity incidents by 35% through expert troubleshooting and root cause analysis.
• Deployed and optimized Group Policy configurations enterprise-wide, standardizing security controls and improving compliance posture while reducing configuration drift across distributed systems.
• Maintained comprehensive technical documentation and supported Azure AD MFA implementations, strengthening security posture and ensuring consistent operational knowledge across identity and access management teams.

Core Skills:

• Azure AD
• Active Directory
• Identity Federation
• Group Policy
• MFA Security
• Domain Migration

• Engineered and secured global Active Directory environments by implementing advanced authentication hardening measures, reducing attack surface exposure by 45% across the enterprise identity infrastructure.
• Eliminated legacy authentication protocols, including NTLM and LDAP, enforcing modern standards such as Kerberos delegation and armoring to strengthen secure authentication mechanisms for 20,000+ users.
• Implemented privileged access controls, including granular password policies, Credential Guard, and LSA protection, decreasing credential theft risks by 40% and enhancing overall identity security posture.
• Deployed domain controller security enhancements such as digital signing and extended protection for authentication, improving trust, integrity, and reducing unauthorized access attempts by 35%.
• Designed and executed least privilege models, including SIDHistory filtering and credential partitioning, aligning access controls with Zero Trust principles and minimizing lateral movement risks.
• Evaluated and implemented enterprise privileged access frameworks, including ESAE and RAMP models, modernizing administrative security architecture and improving governance across critical directory services.

Core Skills:

• Active Directory
• Kerberos Security
• Access Control
• Credential Protection
• Privileged Access
• Identity Security

• Redesigned Active Directory organizational unit structure to enable business unit isolation, improving administrative control boundaries and reducing unauthorized access risks by 35% across enterprise environments.
• Strengthened privileged account security by enforcing administrative restrictions, authentication silos, and multi-factor authentication, decreasing high-risk access exposure for domain administrators by 40%.
• Implemented dynamic access control and behavioral analytics capabilities, enhancing real-time authorization decisions and improving detection of anomalous access patterns across 15,000+ user identities.
• Enhanced domain controller monitoring and auditing, including replication and promotion tracking, increasing visibility into critical changes, and reducing incident detection time by 30%.
• Secured infrastructure through deployment of privileged access workstations, hypervisor audits, and disabling insecure services like LLMNR, significantly minimizing lateral movement and attack vectors.
• Established robust backup, disaster recovery, and ransomware defense strategies, incorporating forest-level recovery and advanced PowerShell logging, ensuring business continuity and reducing recovery time objectives by 50%.

Core Skills:

• Active Directory
• Access Control
• Privileged Access
• MFA Security
• Disaster Recovery
• Security Monitoring

• Advised stakeholders as a technical leader in cloud and infrastructure operations, guiding identity platform strategies that improved service reliability and reduced operational risks by 30% across enterprise environments.
• Defined and enforced security standards and access control procedures for Azure AD and Active Directory, strengthening governance and ensuring compliance with internal policies and regulatory requirements.
• Established a knowledge base and community of practice, enabling consistent adoption of best practices and improving team capability across identity technologies supporting 10,000+ users.
• Led onboarding of new services and customers onto directory platforms, delivering scalable integrations and reducing deployment timelines by 25% through structured project leadership.
• Automated operational processes using scripting and orchestration tools, increasing task reliability and decreasing unplanned outages by 35% across critical identity infrastructure services.
• Collaborated with vendors and stakeholders to resolve complex issues, providing deep technical analysis that improved decision-making and reduced mean time to resolution by 20%.

Core Skills:

• Azure AD
• Active Directory
• Access Control
• PowerShell Automation
• Identity Governance
• Cloud Infrastructure

• Architected and managed global Active Directory and Azure AD environments, defining strategic redeployment initiatives that improved scalability and security posture for 25,000+ users across distributed infrastructures.
• Directed identity platform roadmaps and lifecycle management, leading OS upgrades and hardening programs that reduced vulnerabilities by 40% and aligned with enterprise IAM strategy objectives.
• Designed and implemented advanced protection capabilities, including segmentation and EDR integration, strengthening threat detection and reducing lateral movement risks across critical directory services.
• Advised application teams on Active Directory integrations, enabling secure authentication frameworks and accelerating onboarding of 60+ enterprise applications with minimal service disruption.
• Owned Microsoft engagement processes as primary contact, resolving critical issues and influencing architectural decisions that improved system resilience and reduced escalation timelines by 30%.
• Produced comprehensive architecture documentation and provided senior-level support, guiding L2/L3 teams and vendors while ensuring consistent operational excellence and high availability through on-call leadership.

Core Skills:

• Active Directory
• Azure AD
• Identity Architecture
• EDR Security
• Access Control
• Infrastructure Design

• Delivered level 3 support for enterprise Active Directory environments, resolving complex authentication, federation, and replication issues while improving incident resolution time by 30% across critical identity services.
• Diagnosed and remediated Kerberos, domain controller location, and ADFS-related issues, ensuring reliable authentication services for 15,000+ users across hybrid infrastructure environments.
• Maintained and patched Windows Server systems, applying updates and monitoring health metrics to achieve 99.9% service availability and reduce security vulnerabilities by 25%.
• Administered ADFS infrastructure, including certificates and Web Application Proxy servers, preventing outages through proactive monitoring and reducing certificate-related incidents by 40%.
• Supported service accounts, including gMSA, MSA, and application identities, ensuring secure integration and maintaining operational continuity across 50+ dependent enterprise applications.
• Collaborated with cross-functional teams to integrate relying party trusts and claims, while supporting environment consolidation initiatives that improved infrastructure efficiency by 20%.

Core Skills:

• Active Directory
• ADFS Federation
• Kerberos Authentication
• Windows Server
• Certificate Management
• Identity Integration

• Engineered Zero Trust Active Directory and hybrid Azure AD architectures across multi-forest environments, enhancing access governance and reducing security incident exposure by 45% within enterprise identity platforms.
• Led root cause analysis and problem management for directory services, resolving complex incidents and decreasing recurring issues by 35% through structured remediation and continuous improvement practices.
• Acted as escalation authority for tier 1 and 2 support, guiding resolution of critical domain and system issues while improving mean time to resolution by 25% across production environments.
• Monitored domain controller health and Active Directory services daily, ensuring integrity and availability while maintaining 99.9% uptime through proactive log analysis and system validation processes.
• Optimized operational processes by implementing enhancements and automation, increasing efficiency by 30% and reducing manual intervention in identity and access management workflows.
• Maintained comprehensive system documentation and managed stakeholder communication during incidents, improving customer satisfaction scores by 20% and ensuring transparency during critical outages and on-call support.

Core Skills:

• Active Directory
• Zero Trust
• Azure AD
• Group Policy
• Identity Governance
• System Monitoring

• Engineered and maintained enterprise identity management and Active Directory infrastructure, supporting 12,000+ users while ensuring secure, scalable authentication and directory service operations across hybrid environments.
• Implemented and supported Active Directory Federation Services integrations, enabling secure application access and reducing authentication failures by 30% across 40+ enterprise systems.
• Troubleshot complex issues across Microsoft physical and VMware virtual environments, improving system stability and reducing incident resolution time by 25% through structured diagnostics.
• Developed automation scripts using PowerShell and PowerCLI, streamlining administrative tasks and decreasing manual workload by 35% across identity and infrastructure operations.
• Collaborated with cross-functional teams and third parties to design and deploy AD integrations, ensuring seamless application support and improving deployment success rates by 20%.
• Delivered training and ongoing support for AD integrations, enhancing team capability and reducing support escalations by 15% while maintaining consistent operational performance.

Core Skills:

• Active Directory
• ADFS Integration
• PowerShell Scripting
• VMware Systems
• Identity Management
• System Integration

• Implemented and maintained Windows-based infrastructure environments, designing hardware and software solutions that improved system scalability and reliability across enterprise server platforms.
• Assessed system stability, security, and performance, initiating upgrades that reduced vulnerabilities by 30% and ensured alignment with organizational compliance standards.
• Deployed and upgraded Windows servers in coordination with IT leadership, enhancing infrastructure performance and supporting business-critical applications for 5,000+ users.
• Diagnosed system errors and resolved user-reported issues, reducing incident resolution time by 25% through detailed log analysis and structured troubleshooting approaches.
• Administered user access controls and enforced security policies, minimizing unauthorized access risks by 20% while maintaining consistent identity and access governance practices.
• Maintained server security architecture and backup solutions, ensuring data protection and achieving recovery objectives within defined service continuity requirements.

Core Skills:

• Active Directory
• Windows Server
• Access Control
• System Security
• Backup Recovery
• Infrastructure Design

• Administered enterprise Active Directory environments, ensuring data integrity, performance, and accessibility while supporting multi-site operations for over 8,000 users across a distributed infrastructure.
• Resolved complex Windows Server and clustering issues, improving system stability and reducing critical incidents by 30% through advanced troubleshooting and root cause analysis.
• Executed service and change requests aligned with ITIL practices, maintaining SLA compliance and increasing service delivery efficiency by 25% across operational support functions.
• Planned and delivered upgrades, migrations, and maintenance activities, modernizing platforms and minimizing downtime while enhancing overall infrastructure reliability and scalability.
• Investigated and remediated unusual system issues, supporting escalations across multiple sites and improving resolution timelines by 20% through structured incident management processes.
• Documented configurations, generated reports, and maintained technical diagrams, strengthening operational transparency and ensuring consistent knowledge sharing across support and engineering teams.

Core Skills:

• Active Directory
• Windows Server
• Cluster Management
• ITIL Processes
• Incident Management
• System Monitoring

• Architected and implemented Active Directory infrastructure solutions, improving operational efficiency and enabling continuous service improvements that increased system performance by 30% across enterprise environments.
• Enforced security compliance for Active Directory and Windows systems, conducting periodic assessments that reduced control gaps by 35% and strengthened audit readiness across identity platforms.
• Developed and tracked key performance indicators for directory services, providing actionable insights that improved operational visibility and enhanced service delivery outcomes by 25%.
• Administered identity and access systems, including MIM/FIM and NTFS permissions, ensuring accurate access governance and reducing unauthorized access risks by 20%.
• Optimized Active Directory performance through monitoring and tuning of replication, synchronization, and core services, maintaining 99.9% availability across critical infrastructure components.
• Provided escalation leadership and technical guidance for Microsoft server technologies, standardizing configurations and documentation to improve troubleshooting efficiency and cross-team collaboration.

Core Skills:

• Active Directory
• MIM FIM
• Access Control
• System Monitoring
• PKI Services
• Performance Tuning

• Monitored and maintained large-scale Active Directory environments, performing daily health checks that ensured system stability and sustained 99.9% availability across virtual workplace infrastructure.
• Collaborated in operational forums and cross-team calls to implement configuration changes, improving change success rates by 25% and reducing post-deployment issues in production systems.
• Resolved incidents, service requests, and changes within SLA targets, enhancing ticket resolution efficiency by 30% while supporting complex virtual workplace and identity environments.
• Contributed to migration and optimization projects, delivering infrastructure improvements that increased performance and reduced operational overhead by 20% across enterprise systems.
• Automated repetitive administrative tasks using PowerShell scripting, decreasing manual workload by 35% and improving consistency in Active Directory and Group Policy management.
• Provided advanced troubleshooting support and maintained technical documentation, strengthening knowledge sharing and reducing escalation dependency for system administrators across support teams.

Core Skills:

• Active Directory
• PowerShell Scripting
• Group Policy
• System Monitoring
• Incident Management
• Infrastructure Automation

• Delivered day-to-day operational support for Active Directory services, ensuring system stability and resolving issues within SLA targets while supporting enterprise identity environments serving 10,000+ users.
• Implemented and managed infrastructure lifecycle activities, including installation, monitoring, troubleshooting, and decommissioning, improving service reliability and reducing recurring incidents by 25%.
• Analyzed and remediated complex application and directory issues, applying standardized solutions that enhanced problem resolution efficiency by 30% across multi-forest environments.
• Supported inter-forest migrations, account provisioning, and infrastructure solutions, enabling seamless transitions and improving user onboarding processes for large-scale directory transformations.
• Automated administrative tasks and maintained backup solutions, increasing operational efficiency by 35% while ensuring compliance with BCP/DR processes and data recovery requirements.
• Developed technical documentation and training materials, delivering knowledge transfer sessions that improved team capability and reduced dependency on escalations by 20%.

Core Skills:

• Active Directory
• Domain Migration
• Access Provisioning
• PowerShell Automation
• Disaster Recovery
• System Monitoring