AAA Network Engineer
Englewood, CO
Category: Engineer
Industry: Communications
Reference ID: JN -042026-106217
Date Posted: 03/31/2026
Shortcut: http://careers.eliassen.com/IeuSXh
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.
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.
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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. Eliassen Group’s Affirmative Action Plan (AAP) is available for inspection by any employee or applicant for employment upon request, during normal business hours of Monday through Friday, 8:30am to 5:30pm EST. Interested persons should contact Phaedra Wells at pwells@eliassen.com for assistance. It is unlawful in Massachusetts and Maryland to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
Applicants with disabilities that believe they require an accommodation or assistance with a position, please email our HR team at hradmin@eliassen.com. This email inbox is designed exclusively to assist job seekers whose disability prevents them from being able to apply online. Emails sent for other purposes will not receive a response.
Please be advised that a number of fraudulent job postings have been released under the Eliassen Group brand.
Unfortunately, fraudulent job postings can happen. If anyone reaches out to you about an open position connected with Eliassen Group, never provide personal or financial information to anyone who is not clearly associated with Eliassen Group
If anyone seemingly from Eliassen Group has ever requested this personal information in the past or does so in the future, please contactInfoSec@eliassen.com.
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, as indicated above