Lead Engineer - Telecom Systems

About the Role :

Were looking for a Lead Engineer with strong experience in telecom core networks and system integration to lead the design and development of a new Entitlement Server supporting SIM-based silent authentication. This is a strategic R&D role where youll work closely with our backend and product teams to build a carrier-grade platform that interfaces with mobile operator infrastructure. This role is ideal for someone who understands telecom protocols, knows how to integrate with HSS/AAA systems, and can design backend systemseven if not hands-on coding daily.

What Youll Do :

- 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

What Were Looking For :

- 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

- 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 services