Senior/Principal 5G Protocol Stack Engineer

Vicinity Technologies Limited

Closing date
31 Dec 2025 12:00 AM
Location
Reading

Vicinity Technologies Limited, a dynamic leader in the UK’s 5G revolution, is seeking talented Senior/Principal 5G Protocol Stack Engineers to join our team of innovators. As a key contributor, you will play an integral role in developing cutting-edge 5G, 6G, and Non-Terrestrial Network (NTN) solutions that are transforming the way we connect and communicate.

Job Responsibilities

• Design, develop, maintain and deliver 5G protocol stack software for NR base-station and NR User Terminal.

• Responsible for the MAC-PHY integration.

• Analyse and implement new 3GPP features related to NR protocol stack.

• Continuously enhance 5G product performance, including product verification, end-to-end testing, network deployment and field trials.

• Collaborate with system, hardware and PHY software teams to make sure system requirements can be fulfilled.

Requirements

• Ph.D. holder or Master degree in Electronic Engineering, Computer Science or relevant disciplines with minimum 3 years of related experiences. Candidate with less experiences may also be considered.

• Hands on experience in design and implementation of LTE/5G NR MAC/RLC/PDCP/NAS/RRC layers.

• Strong understanding of 3GPP NR Specification and ORAN architecture.

• Knowledge of networking protocols such as TCP/IP, UDP, SCTP and etc.

• Background in cellular communication systems across 4G/5G PHY, system, and RF is preferred.

• Proficiency in C/C++ and python.

• Strong analytical, communication and teamwork skills.

Why Join Us

• Play a key role in shaping the future of connectivity in the UK, as we build and deploy the next generation of 5G networks.

• Enjoy ample opportunities for professional development and advancement within a rapidly growing company.

• Benefit from a competitive salary, performance-based bonuses, and a comprehensive benefits package.

About Vicinity

Founded in 2023, Vicinity develops and deploys advanced base stations, NTN solutions, software-defined terminal solutions and private networks, with global trials already underway. We collaborate with silicon providers, operators, integrators and top research institutes, pushing past 5G into what is next.

🌐 www.vicinitysys.com

📩 To apply, send your CV and a brief cover letter to [email protected]

Be part of building what’s next — lead the R&D that defines tomorrow’s networks.