Job Information
Eliassen Group AAA Network Engineer in Englewood, Colorado
AAA Network Engineer
Englewood, CO
Type: Contract
Category: Engineer
Industry: Communications
Reference ID: JN -042026-106217
Date Posted: 03/31/2026
Shortcut: http://careers.eliassen.com/IeuSXh
Description
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Description:
Onsite in Englewood, CO
Our client seeks a core wireless and network engineer to deliver carrier-grade AAA for Wi‑Fi offload and roaming. The role focuses on RADIUS policy design, SIM-based EAP methods, secure transport, and high-throughput session data stores. You will configure Passpoint/OpenRoaming integrations and build reliable authentication and accounting flows aligned to WBA standards. You will collaborate with data teams to optimize databases for low-latency, high-TPS performance.
Due to client requirements, 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: $60.00 to $70.00/hr. w2
Responsibilities:
Design and implement AAA policies and schemas for Wi‑Fi offload in carrier-grade environments.
Deploy and operate AAA servers including Nokia AAA and FreeRADIUS.
Engineer and optimize RADIUS authentication, authorization, and accounting workflows.
Implement EAP‑SIM and EAP‑AKA methods for SIM-based authentication.
Secure transport using IPsec, TLS/RADSEC, and robust certificate management.
Configure Passpoint/Hotspot 2.0 and integrate with OpenRoaming aligned to WBA standards.
Design and manage SQL/NoSQL data stores for subscriber profiles, sessions, and accounting logs.
Architect high‑TPS, low‑latency session management for real‑time traffic switching.
Integrate DHCP, DNS, and IPAM solutions for dynamic Wi‑Fi environments.
Engineer tunneling solutions such as EoGRE and IPsec for secure backhaul to the core.
Simulate UE and validate EAP‑SIM/EAP‑AKA flows using tools such as Spirent, Ixia, or Calnex.
Monitor, troubleshoot, and tune performance across AAA, databases, and network paths.
Experience Requirements:
Hands-on experience developing AAA policies and managing AAA databases for Wi‑Fi offload in carrier-grade settings.
Operational experience with Nokia AAA and FreeRADIUS.
Deep knowledge of RADIUS protocol and accounting workflows.
Proficiency with EAP‑SIM (RFC 4186) and EAP‑AKA (RFC 4187).
Experience implementing IPsec, TLS/RADSEC, and certificate management.
Configuration experience with Hotspot 2.0/Passpoint and familiarity with OpenRoaming and WBA standards.
SQL and NoSQL experience managing subscriber profiles, sessions, and accounting logs, including high availability topologies such as MySQL master/slave.
Designing low-latency, high-TPS authentication data paths and session stores.
Knowledge of DHCP, DNS, and IPAM solutions for large-scale Wi‑Fi networks.
Experience with EoGRE and IPsec tunneling for access to core traffic transport.
Use of network simulation and test tools such as Spirent, Ixia, or Calnex to validate EAP flows.
Recruitment Transparency Notice
Eliassen Group values transparency in our recruitment practices. Please be advised that Eliassen Group utilizes artificial intelligence (AI) tools as part of its initial application screening and hiring process. You may receive email and SMS notifications from the Eliassen Virtual Recruiting Team ( noreply@eliassen.com , 781-808-2924) inviting you to complete a brief voice screening as part of your application process. These tools assist our hiring teams in different ways, including but not limited to, assistance in reviewing application materials to help identify candidates whose qualifications most closely match the requirements of the position. All AI-assisted evaluations and responses are reviewed by human recruiters before any hiring decisions are made. The use of AI in our process is intended to support fairness, efficiency, and consistency, and Eliassen Group takes measures to prevent bias or discrimination in connection with its hiring practices. By proceeding, you acknowledge, agree, and consent to Eliassen Group’s use of these tools, including AI tools, as part of the application and hiring process.
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.
If anyone reaches out to you about an open position connected with Eliassen Group, please ensure that you are working directly with us by confirming the following:
· When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.
· Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group.
If you have any indication of fraudulent activity, please contact fraud@eliassen.com .
About Eliassen Group:
Eliassen Group is a strategic consulting firm that helps organizations reach further and achieve more through our technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined exceptional people, deep domain expertise, and intelligent capabilities to expand our clients’ capacity and accelerate meaningful outcomes. We are driven by a purpose to positively impact the lives of our employees, clients, consultants, and the communities we serve.
Eliassen is committed to building a diverse and inclusive team from a variety of backgrounds, perspectives, and skills. We are an Equal Opportunity and Affirmative Action Employer and all employment decisions are based on merit, performance, and business needs. Eliassen does not discriminate on the basis of race, color, gender identity or expression, sexual preference or orientation, sex (including pregnancy, childbirth, and related medical conditions), marital status, creed, religion, physical or mental disability, genetic information, military or veteran status, age, ancestry, national origin, citizenship status, prohibited criminal record inquiries of applicants and employees, or any other category protected by federal, state, or local laws.
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