
System Integration Engineer
3 weeks ago
About the Role
We are looking for a System Integration 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 you will 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 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
You'll lead a first-of-its-kind project that modernizes telecom authentication using the SIM. You'll be shaping the future of secure, seamless user experiences for mobile services without passwords or OTPs.
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