Job Title: Principal Systems Architect / Delivery Lead – 4G/5G Stack-L3

Experience Level: 12+ Years

Location: Bangalore, India

Position Type: Full time

Job Overview

We are seeking a highly accomplished Principal Systems Architect and Delivery Lead specializing in 4G/5G Stack-L3 engineering. In this role, you will spearhead the design, development, optimization, and end-to-end delivery of Layer 3 control-plane software across our wireless portfolio.

You will manage large-scale product development, software sustenance, and customer support programs across multiple eNodeB and gNodeB deployment variants, including vRAN, O-RAN, and custom hardware architectures. By mentoring high-performance L3 teams and collaborating with senior internal and external stakeholders, you will ensure delivery excellence for mission-critical network features.

Roles & Responsibilities

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Control-Plane Feature Engineering: Design and implement RRC, S1AP, X2AP, NGAP, F1AP, E1AP, XnAP, and higher-layer control-plane features for LTE and 5G NR networks.

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Technical Mentorship:



Review technical architectures and mentor high-performance L3 teams to resolve complex defects and engineering bottlenecks.

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Defect Resolution & Analysis: Lead investigations to close system-level defects, including attach/registration failures, handover drops, security-mode failures, RRC resume issues, paging misses, Xn/F1/E1 mis-synchronization, and vendor-specific interoperability challenges.

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Cross-Functional Collaboration: Partner closely with verification, OAM, and core-network teams to establish rigorous call-flow validation, stress scenarios, interoperability campaigns, and negative/failure-recovery tests.

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Program Delivery Leadership: Drive large-scale 4G/5G L3 product development, software sustenance, and field support programs across global deployments.

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Stakeholder Engagement: Act as a key technical liaison, interfacing effectively with senior levels of internal management and external customer s

📌 4G/5G Stack-- Principal Systems Architect (Bengaluru)
🏢 Neev
📍 Bengaluru