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Software Engineer - C++ / Rust

eFinancialCareers · London

On-site Permanent
Competitive salary 14 Oct 2026

Full job description £60,000 to 75,000 GBP Bonus Onsite WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Software Engineer - C++ / Rust Location: Cambridge Salary: Up to £75,000 + bonus Level: Consultant / Senior Consultant Security: Must be eligible for UK Security Clearance The Opportunity We're looking for Software Engineers with experience in C++ or Rust to join an innovative technology team developing advanced network security products. You'll work on specialist software and hardware solutions designed to protect critical digital infrastructure across defence, security, energy and the public sector. This is an opportunity to contribute to technically challenging projects with real-world impact, working on products that address complex security requirements. You'll join a highly skilled engineering team where software is developed in-house, with a strong emphasis on technical quality, collaboration and continuous improvement. From enhancing existing products to developing next-generation capabilities, you'll have the opportunity to make a tangible contribution to the direction of the technology. Key Responsibilities Design, develop and maintain high-quality software for advanced network security products. Contribute to the development of secure, reliable and maintainable applications. Work across a range of technologies, including low-level software, Linux-based applications and embedded systems. Collaborate with other engineers through code reviews, pair programming and technical discussions. Apply modern software engineering practices, including test-driven development (TDD) and Agile methodologies. Help improve development processes, software quality and engineering standards. Contribute to technical problem-solving across complex software and security challenges. Work collaboratively across the wider business, with opportunities to engage in customer support and other technical activities. Ess