Technical Program Manager - Core Network Delivery & MNO Onboarding
HybridBengaluru, Karnataka, India
Job Summary
Own end-to-end MNO technical onboarding programs across the packet core, signalling plane, and billing & settlement systems. Drive delivery for Diameter interfaces, MAP-over-IPX routing, and roaming signalling readiness while coordinating billing settlement exchanges and CDR integrity. Program-manage the multi-supplier roaming stack, including contractual cutovers, parallel runs, and rollback planning to de-risk single-supplier dependency. Maintain roadmaps, RAID logs, and cross-functional launch-readiness reviews to ensure partner commitments align with network reality. Work onsite three days a week in Bangalore with a global team.
Required Qualifications
- 8+ years in mobile core / signalling engineering or technical program leadership
- deep, hands-on time in the signalling plane
- Understanding of Signalling in 3GPP core, across EPC and 5GC
- NAS procedures (attach, TAU, service request) and the interfaces that carry them — S6a, S6c, S13, SGd, T6a
- fluency in Diameter base protocol, AVP design, realm/application routing, and error/overload handling
- understanding of routing policy & topology
- A clear grasp of the SS7/MAP ↔ Diameter boundary and IWF interworking
- NB-IoT / CIoT and NTN signalling specifics
- control-plane CIoT EPS optimisation, NIDD, and the way NTN propagation delay and timer handling (Rel-17 NTN) change attach/retransmission behaviour
- Hands-on roaming operations: IREG/TADIG, IR.21/RAEX, IPX interconnect, and per-partner signalling readiness
- Working understanding of billing & settlement as it depends on signalling and CDR generation
- TAP3 (TD.57), RAP (TD.32), NRTRDE, and the CDR lifecycle from record generation to settlement
- Demonstrated track record shipping cross-functional network programs on time across engineering and external partners
- Credible in a signalling design review and in a partner integration call alike
- active habits using AI tools
- a track record of picking up new ones quickly
- This role is located in Bangalore, India where we are onsite 3 days a week in office
Desired Qualifications
- NTN, NB-IoT, or cellular IoT connectivity experience
- SMS-over-NAS delivery paths (SGd Diameter and MAP-via-IPX), and CIoT optimizations (NIDD, control-plane CIoT)
- Experience with wholesale roaming, MVNO/MVNE, or roaming-hub environments
- Familiarity with BCE and next-generation settlement, and with ERP/finance-system integration for billing
- Exposure to clearing-house and IPX supplier commercial/technical management
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