Tech Lead, Stack

Parallelwireless

Pune permanent

Posted: January 9, 2026

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Quick Summary

Tech Lead, Stack

Required Skills

LTE Layer 2 3GPP Specification C/C++ programming Multi-threaded systems Debugging tools LTE call flows KPIs Technical leadership Problem-solving skills Cross-functional communication

Job Description

Parallel Wireless is a U.S.-based pioneer in Open RAN innovation, transforming how mobile networks are built, optimized, and powered. Through our GreenRAN™ portfolio, we enable operators to deliver next-generation connectivity with unmatched energy efficiency, automation, and flexibility.

What you need :
• Strong hands-on experience in LTE Layer 2 – MAC, RLC, PDCP
• In-depth knowledge of 3GPP LTE standards (36.321, 36.322, 36.323)
• Excellent programming skills in C/C++ (embedded, real-time systems)
• Experience with multi-threaded systems, IPC, and high-performance software
• Debugging experience using tools like GDB, Wireshark, protocol analyzers
• Strong understanding of LTE call flows and KPIs (throughput, latency, BLER)
• Strong technical leadership and ownership
• Ability to explain complex protocol behavior clearly
• Excellent problem-solving and analytical skills
• Effective communication with cross-functional and global teams
• Ability to work in a fast-paced R&D environment
• Mentor and guide a team of junior engineers
• Break down requirements into technical tasks and ensure timely deliver

What you will do ::
• Lead development/support/maintenance of features such as:
• Scheduling and HARQ (MAC)
• RLC AM/UM/TM procedures
• PDCP ciphering, integrity protection, ROHC
• QoS, DRX, SR/BSR, Timing Advance handling
• Carrier Aggregation, MIMO, and 256-QAM support
• Optimize throughput, latency, CPU usage, and memory footprint
• Analyze and resolve complex protocol and performance issues in lab and field environments

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