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Product Architect

Tejas Networks
Bengaluru, IND
Full-time
Mid
Onsite
Discovered 3 weeks ago
linux

Full Job Posting

Qualifications

  • Experience: 18+ from Wireless Telecommunications, Networking, or RAN product development.
  • Education: B.Tech/BE (CSE/ECE) or any other equivalent degree

Responsibilities

  • Own end-to-end system integration activities for 4G eNodeB and 5G gNodeB products.
  • Define integration strategy, validation scope, and release readiness criteria based on product roadmap and feature increments.
  • Lead integration of FW, FPGA, L1, L2, L3, OAM, RU, and transport/networking components into stable product releases.
  • Drive architectural decisions for system-level feature enablement, performance optimization, scalability, and maintainability.
  • Collaborate closely with cross-functional teams including software development, hardware, verification, field engineering, and product management.
  • Analyze customer, field, and verification issues; provide system-level solutions and influence delivery roadmaps.
  • Lead root cause analysis and debugging of complex system issues, including DL/UL timing, synchronization, interoperability, and protocol-related problems.
  • Define and guide verification, field trial, and customer acceptance test strategies. Track internal and external issues to closure, ensuring alignment across development and support teams.
  • Mentor engineering teams on system architecture, integration methodologies, and best practices.
  • Mandatory Skills:
  • Strong expertise in RAN software architecture, protocol stack design, feature integration, and release management.
  • Hands-on experience in integrating and troubleshooting FW, FPGA, RU, L1, L2, L3, OAM, and transport/networking components.
  • Deep knowledge of LTE and NR protocols across PHY, MAC, RLC, PDCP, SDAP, RRC, NGAP, X2AP, XnAP, S1AP, and F1AP layers.
  • Strong experience in system-level debugging and root cause analysis of complex software issues across multiple protocol layers.
  • Proven expertise in debugging: o DL/UL timing alignment and synchronization issues. o Call setup, attach, handover, mobility, and bearer management failures. o Throughput, latency, scheduler, QoS, and radio performance issues. o Carrier Aggregation (CA), MIMO, VoLTE, ENDC, NSA/SA, and Dual Connectivity features. o Interoperability issues involving RU, DU, CU, UE, and Core Network elements.
  • Strong understanding of PHY layer procedures including timing advance, HARQ, beamforming, MIMO, PRACH, synchronization, and scheduler behavior.
  • Expertise in analyzing protocol logs, call traces, KPIs, core dumps, memory leaks, crash dumps, Wireshark traces, front-haul captures, and system debug logs.
  • Hands-on experience with Open RAN architecture including FAPI, eCPRI, O-RAN M-Plane, RU integration, and front-haul troubleshooting.
  • Strong knowledge of Linux internals, multi-threaded software debugging, IPC mechanisms, performance profiling, and resource optimization.
  • Experience in software architecture reviews, design trade-off analysis, and technical risk assessment.
  • Strong understanding of SDLC, Agile methodologies, CI/CD pipelines, automation frameworks, and release governance.
  • Ability to define integration architecture, feature validation strategies, and system verification roadmaps.
  • Excellent cross-functional leadership skills with proven experience working with development, hardware, verification, field, and customer support teams.
  • Desired Skills:
  • Experience with UE simulators and test platforms such as TM500, Keysight, Spirent, or equivalent.
  • Knowledge of EPC/5GC configuration and end-to-end RAN validation.
  • Understanding of Continuous Integration/Continuous Deployment (CI/CD) and automation frameworks.
  • Exposure to cloud-native RAN, virtualization, and container-based deployments.
  • Familiarity with performance benchmarking, capacity validation, and interoperability testing.
  • Experience in customer-facing technical engagements and field deployment support.

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