> Markdown version of [/jobs/ext/1341804-senior-software-engineer-c](https://www.wearedevelopers.com/jobs/ext/1341804-senior-software-engineer-c). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer C++ - **Company:** Octagon - **Location:** Stevenage, UK - **Experience:** Expert - **Salary:** £44,249.0 - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Amazon Web Services, C++ (Programming Language), Cloud Computing, Computer Programming, Continuous Integration, Linux, Github, Python (Programming Language), Network Programming, Object-Oriented Software Development, Software Engineering, Software Systems, Systems Architecture, Real Time Systems, Backend, Containerization, Information Technology, Terraform, Docker, Jenkins - **Published:** July 19, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5806151762 ## About the Role Key Skills & Experience - Senior Software Engineer (C/C++) - Stevenage * Degree in Computer Science, Software Engineering, or similar * 5+ years' experience in software development * Strong C/C++ programming and object-oriented design skills * Experience working in a Linux environment (GNU tools such as gcc, gdb) * Network programming and multithreading experience * Python programming knowledge * Proven ability to break down complex problems and deliver solutions * Experience mentoring or supporting other engineers * Strong communication and collaboration skills Desirable Experience - Senior Software Engineer (C/C++) - Stevenage * CI/CD pipeline development (Jenkins, GitHub Actions) * High-performance or real-time systems development * DPDK experience * Docker and containerisation * Cloud technologies (AWS, Terraform) * JavaScript knowledge ## Description You'll be part of a collaborative, multi-disciplinary environment, working closely with product, sales, and marketing teams to turn real-world customer requirements into high-performance, innovative software solutions. This is a fantastic opportunity to work on complex systems within a fast-paced, product-focused environment. The Role - Senior Software Engineer (C/C++) - Stevenage * Design, develop, and maintain complex backend software solutions with full end-to-end ownership * Translate high-level requirements into scalable, maintainable system designs * Contribute to system architecture and ongoing product evolution * Develop high-quality, performant software to agreed timescales * Collaborate closely with product owners and cross-functional teams * Support testing and quality-focused activities to ensure excellent product delivery * Mentor and support junior engineers within the team ## Related Videos - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [Why Your Best Mediors Never Become Seniors (And How to Fix It)](https://www.wearedevelopers.com/videos/2108-why-your-best-mediors-never-become-seniors-and-how-to-fix-it) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [Docker build without Docker](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker) ## Related Articles - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)