Lead Telecom Engineer

About the Role

Lead Engineer

This role is ideal for someone who understands telecom protocols, knows how to integrate with HSS/AAA systems, and can design backend systems even if not hands-on coding daily.

Role & responsibilities

• Own the

  system architecture and integration design

  for the entitlement server.
• Work closely with

  mobile network operators

  to understand their HSS/HLR, AAA, and core integration requirements.
• Design and review APIs that enable SIM/eSIM-based

  silent authentication

  flows.
• Guide developers and ensure compliance with

  GSMA TS.43

  and 3GPP standards.
• Lead technical discussions and interface with security, backend, and cloud teams.
• Support internal and external testing, audits, and pilot deployments.

Preferred candidate profile

• Should have experience in

  telecom systems

  or

  core network software.

• Strong understanding of

  mobile authentication

  (EAP-AKA/ SIM-based auth).
• Experience working with

  HSS, AAA, or IMS

  systems in real-world telecom environments.
• Familiarity with

  GSMA standards

  (especially TS.43) is a strong plus.
• Good system design and documentation skills.
• Solid knowledge of backend systems, preferably with experience in

  Java-based environments.

• Clear communicator who can work across technical and business teams.

Bonus Points For

• Experience with 5G Core or GSMA Open Gateway APIs.
• Prior work on entitlement platforms, provisioning systems, or SIM authentication flows.
• Understanding of container-based deployments (e.g., Docker, Kubernetes).

Why Join Us

Youll lead a first-of-its-kind project that modernizes telecom authentication using the SIM. Youll be shaping the future of secure, seamless user experiences for mobile serviceswithout passwords or OTPs.