Software Engineer

Job Description

C Programmer / Telecom Protocol Engineer – 3GPP

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Contract: 6 months, with potential for extension

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Location: Farnborough, UK – Client Site

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Work Arrangement: Hybrid but on-site as required

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Eligibility: Candidates must already be based in the UK and be able to work from the Farnborough client site.

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Role Overview

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We are seeking an experienced C Programmer / Telecom Protocol Engineer to support a client project based in Farnborough. The successful candidate will combine strong software development expertise in C with practical knowledge of telecommunications networks, signalling and 3GPP standards.

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This role will involve developing and enhancing telecom software, investigating complex protocol and software issues, and supporting integration and testing activities within a telecommunications environment.

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Key Responsibilities

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• Design, develop, maintain and enhance telecommunications software using C.

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• Analyse, troubleshoot and resolve complex software and protocol-related issues.

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• Work with telecom signalling protocols, network interfaces and communication technologies.

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• Review 3GPP specifications and translate technical requirements into software implementations.

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• Contribute across the full development lifecycle, including design, coding, debugging, unit testing and integration testing.

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• Investigate software defects, conduct root-cause analysis and implement appropriate fixes.

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• Support software integration, system testing and deployment within telecom/network environments.

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• Collaborate closely with client engineering teams and other technical stakeholders on-site.

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• Produce and maintain relevant technical and engineering documentation.

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• Participate in technical discussions and contribute to continuous improvement of software and development processes.

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Essential Skills & Experience

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• Strong commercial experience developing software using C.

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• Solid understanding of telecommunications and mobile network architecture.

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• Practical knowledge of 3GPP standards and protocols across 3G, 4G/LTE and/or 5G.

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• Experience working with telecom signalling protocols and network interfaces.

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• Strong analytical, debugging and problem-solving capabilities.

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• Hands-on experience working in Linux/Unix environments.

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• Good understanding of networking concepts, including TCP/IP.

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• Experience with software development lifecycle processes, version control and defect/issue management.

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• Ability to interpret complex technical specifications and convert requirements into robust software solutions.

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Desirable Skills

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• Experience programming in C++.

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• Knowledge of 4G/LTE and/or 5G Core and RAN technologies.

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• Exposure to telecom protocols/interfaces such as SIP, Diameter, GTP, SCTP, NGAP, S1AP and NAS.

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• Experience working with protocol stacks, signalling platforms or real-time telecommunications applications.

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• Understanding of multi-threaded, concurrent or distributed software systems.

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• Scripting experience using Python and/or Shell.

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• Previous experience working for or directly with a telecom operator, network equipment vendor or client engineering team.

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