CORE ENGINEER SKILLS, EXPERIENCE, AND JOB REQUIREMENTS
Updated: Jan 01, 2025 - The Core Engineer possesses extensive experience with Cloud Native Architecture, excelling in DevOps, CI/CD, SRE, and has robust skills in unit and system testing via automation frameworks. They are adept in Kubernetes, microservices, and managing systems across both public clouds like AWS, Azure, GCP, and private data centers, with specialized knowledge in 5G, CUPS, LTE, and related functions such as SMF/UPF/AMF/NRF/NSSF/PCF/UDM/AUSF/MME. Their expertise also spans code optimization, debugging, task automation, and a solid understanding of networking protocols, ensuring effective problem-solving and strategic implementation in complex environments.
Essential Hard and Soft Skills for a Standout Core Engineer Resume
- Circuit Design
- Embedded Systems
- MATLAB
- C++
- Robotics
- Systems Engineering
- Signal Processing
- AutoCAD
- FPGA Programming
- Python
- Problem Solving
- Critical Thinking
- Teamwork
- Adaptability
- Attention to Detail
- Communication
- Creativity
- Time Management
- Leadership
- Initiative
Summary of Core Engineer Knowledge and Qualifications on Resume
1. BS in Computer Science with 3 years of Experience
- Solid knowledge of quality assurance techniques, testing concepts, methodologies and tools
- General understanding of automation testing methodologies
- Knowledge of software development life cycle and relevant test activities on each phase
- Experience in testing REST APIs with Postman or other tools
- Experience in automated testing of backend services
- Knowledge of scripting in JavaScript/TypeScript
- Experience in working with Jest framework
- Good knowledge of SQL and NoSQL databases
- Excellent interpersonal and oral/written communication skills
- Ability to adapt and learn quickly with any testing tool
- Experience with docker, cloud technologies and modern pipelines
2. BS in Electrical Engineering with 4 years of Experience
- Experience working in video game or a related industry as an Engineer
- Experience with Console and PC APIs and tools
- Fluent in modern C++ and multi-threaded programming
- Communicate effectively with non-technical team members
- Work well in a diverse team environment
- Excellent verbal and written communication skills
- Data presentation skills
- Experimental design ability
- Ability to work as part of a project team.
- Knowledge of a variety of LAN technologies including Fast/Gigabit Ethernet, HSRP, Token Ring, and DLSW+protocols
- Ability to possess Cisco Certified Network Professional, CCNP or CCIP (preferred)
- Proficiency in utilizing Cisco IOS 11.x, 12.x, Cisco Core, Routers, Switches, CiscoWorks, SNMP, Sniffer Pro
- In-depth knowledge of IP routing protocols such as RIP, IGRP, EIGRP, OSPF, and BGP
3. BS in Mechanical Engineering with 5 years of Experience
- Experience in O&M of 3G & 2G Core nodes (MSS/MGW/HSS/HLR/SBC/STP/LIG/CTS/MNP/EIR).
- Experience in O & M within ZTE/Ericsson/Huawei GSM/WCDMA core network.
- Excellent knowledge of the network topology, its traffic handling capabilities and traffic characteristics.
- Good troubleshooting skills in Ericsson MSS, MGW HSS, ZTE vCS ((NFV Platform, Legacy ETCA Platform, ZXCloud E9000, ZXUN MSC, ZXUN MGW, ZXUN LIG, ZXUN USPP, ZXUN DSC, ZXUN SBC, vMSC, vMGW, vLIG, vEMS, vUSPP(HLR/HSS), vDSC, vCU,vCG, vCTS, vSBC, vEMS, vCTS, ETCA MGW, ZXWN MSC, UGMSC, ZXWN MGW, EIR) and Huawei MSS/MGW/CG/SDM/HSS/SBC/STP.
- Experience with Interfaces and Protocols such as SCCP, M3ua, S6a, Diameter, INAP, CAMEL, ISUP, SIP-I, SCTP, BSSMAP, GCP/H.248, TCAP, BICC, IPBCP, SNMP, MAP, RANAP, MTP.
- Good understanding of LI Server, CG Server, Disk array, billing FTP CDRs related configuration and troubleshooting
- Knowledge of Managed Service Telecom Operations Practice.
- Presentation & Communication Skills.
- Working knowledge of UNIX and/or LINUX
- Knowledge of Ericsson Portfolio
4. BS in Software Engineering with 4 years of Experience
- Experience with Cloud Native Architecture
- Strong skills in DevOps, CI/CD, SRE
- Experience with unit and system test as a mindset using test automation frameworks
- Some experience in Kubernetes regarding containers / Microservices principles
- Expertise in writing, debugging, and optimizing code, and automating routine tasks
- Experience running systems in public cloud (e.g. AWS, Azure, GCP) as well as private data centers
- Proven work experience in 5G / CUPS / LTE.
- Knowledge and documented work experience in the following functions SMF/UPF/AMF/NRF/NSSF/PCF/UDM/AUSF/MME, SAEGW, SPGW, ePDG with Cloud Native Architecture.
- General understanding of standard networking protocols and components such as HTTP, DNS, SRV6, TCP/IP, ICMP and load balancing.
- Excellent English verbal and written skills.
- Problem Solving and strategic thinking
Professional Skills FAQs
What are professional skills?
Professional skills are abilities that help individuals perform tasks effectively in a workplace environment. These skills include both technical competencies required for specific roles and soft skills such as communication, teamwork, and problem solving.
What is the difference between hard skills and soft skills?
Hard skills are technical abilities learned through education or training, such as programming, data analysis, or laboratory testing. Soft skills refer to interpersonal abilities like communication, leadership, adaptability, and teamwork.
Why are professional skills important for careers and resumes?
Professional skills help employers evaluate whether a candidate can perform job responsibilities effectively. Listing relevant skills on a resume demonstrates qualifications and helps applications pass Applicant Tracking Systems used in modern hiring processes.
What professional skills do employers look for?
Employers usually value a combination of technical expertise and transferable workplace skills. Common examples include analytical thinking, communication, teamwork, leadership, time management, adaptability, and digital literacy.
How can professionals develop professional skills?
Professionals can develop skills through continuous learning, training programs, certifications, mentorship, and practical work experience. Staying updated with industry trends also helps individuals maintain relevant and competitive skills.
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.