Head of xSIM Engineering
Remote · United States or Mexico
Job Summary
Head of xSIM Engineering role reporting to the mobile core team, accountable for end-to-end management of SIM cards, acting as Product Owner for SIM profiles, SIM vendors, SIM applets, and OTA platform, and standardizing SIM procedures across vendors. Responsibilities include managing vendor relationships, documenting technical processes, leading development projects for new applets, improving SIM orchestrator and OTA platforms, and ensuring secure, high-quality SIM provisioning and OTA capabilities across multiple countries. Requires hands-on leadership, strong technical writing, and deep knowledge of SIM technologies, OTA platforms, applets, and related standards.
Required Qualifications
- Engineering degree in Information Technology, Electronics, or Telecommunications
- Minimum of 10–12 years of experience in a smart card environment or telecommunications with a strong technical background in telecom, smart cards, and security
- Broad knowledge of (e)(p)SIM-related technologies and environments (SIM electronic profiles, SIM OTA platforms and protocols SCP80/81, BIP, iSIM, NFC, Java Card, Cryptography, Applets, EAP)
- Strong understanding of SIM technology and ecosystem (SMDP+, SMP DP/SR, ETSI standards, 3GPP standards, GlobalPlatform standards)
- Experience with Remote SIM Provisioning technologies (GSMA SGP.02, SGP.22)
- Knowledge of ISO 7816 and ISO 14443
- Familiarity with OTA SIM card change management techniques
- Excellent written and verbal communication skills, project management skills
- Experience with Java Card 2.2.2+ development and testing
- Ability to document technical processes and act as Product Owner for SIM profiles and applets
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