Job Description

**Hybrid | Englewood, CO**

Our client is seeking an experienced 5G Core Test Engineer to support the validation and testing of vendor Network Functions (NFs) in a lab environment. This role requires expert-level knowledge of 5G call flows, experience working in Kubernetes-based environments, and strong technical writing skills. A key responsibility will be creating and maintaining comprehensive documentation, including a test manual that outlines procedures, configurations, and troubleshooting steps for use by engineering and operations teams.

Due to client requirement, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.

Rate: $65 - $75 / hr. w2

• Perform functional, integration, regression, and performance testing of 5G Core Network Functions (AMF, SMF, UPF, AUSF, NRF, etc.) in a lab environment.
• Analyze and validate 5G call flows across multiple network interfaces (e.g., N1, N2, N3, N4, N6, N10, N11, etc.) based on 3GPP standards.
• Deploy, manage, and troubleshoot containerized NFs within Kubernetes clusters.
• Develop and execute detailed test plans and test cases tailored to vendor-specific NFs.
• Lead the creation of a test operations manual and documentation suite that includes test procedures, environment setup instructions, configuration guides, and troubleshooting playbooks.
• Maintain detailed and accurate documentation of all lab test results, system behaviors, defects, and resolutions.
• Collaborate with vendors and internal stakeholders to reproduce, analyze, and document issues.
• Provide clear technical documentation to support issue triage, regression tracking, and knowledge transfer.
• Participate in automation planning and contribute to the development of repeatable test processes.

• 3+ years of experience testing 5G Core or 4G EPC systems in lab or pre-production environments.
• Expert-level understanding of 5G/4G call flows and 3GPP interface behaviors.
• Strong hands-on experience with Kubernetes, Docker, and containerized NF deployment.
• Experience with vendor NFs from providers such as Ericsson, Nokia, Mavenir, or Samsung.
• Deep familiarity with protocols including PFCP, SCTP, GTP-U, and Diameter.
• Exceptional documentation skills, including the ability to create structured manuals, guides, and traceable test records.
• Proficient with tools like Wireshark, Tcpdump, and log analysis for troubleshooting.
• Strong communication skills and attention to detail.
• Experience with Helm charts, YAML, and Kubernetes automation.
• Familiarity with CI/CD and automated testing environments.
• Scripting or test automation knowledge (Python, Bash, Robot Framework, etc.).
• Experience using Spirent Landslide or similar tools for traffic generation and NF validation.
• Background in writing formal technical documentation or internal knowledge bases.

Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.


W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.
Please be advised- If anyone reaches out to you about an open position connected with Eliassen Group, please confirm that they have an Eliassen.com email address and never provide personal or financial information to anyone who is not clearly associated with Eliassen Group. If you have any indication of fraudulent activity, please contact InfoSec@eliassen.com.

About Eliassen Group:

Eliassen Group is a leading strategic consulting company for human-powered solutions. For over 30 years, Eliassen has helped thousands of companies reach further and achieve more with their technology solutions, financial, risk & compliance, and advisory solutions, and clinical solutions. With offices from coast to coast and throughout Europe, Eliassen provides a local community presence, balanced with international reach. Eliassen Group strives to positively impact the lives of their employees, clients, consultants, and the communities in which they operate.

Eliassen Group is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.

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