Senior Software Engineer
Salary: £55,000 - £65,000
Location: Cambridge (Hybrid - 2 days per week in office)
Industry: Open-Source Software / Data & Collaboration Platforms
Opportunity
I'm recruiting for a fast-growing Cambridge-based technology company that's making waves in open-source software and collaborative data platforms. This role is ideal for a Senior Software Engineer who thrives on building scalable, high-quality applications and wants to have a tangible impact on product direction and team growth. You'll be joining an engineering team of around 10 developers, working in a collaborative environment where mentorship, technical excellence, and open-source contributions are genuinely encouraged.
Responsibilities
* Designing, developing, and maintaining scalable open-source applications
* Building new features and improving existing systems across backend and frontend
* Writing clean, maintainable, and well‑tested code
* Collaborating closely with Product, Design, and other engineers
* Participating in code reviews, architectural discussions, and mentoring team members
* Improving system performance, reliability, and developer experience
Projects include API‑first platforms, real‑time collaboration tools, and data‑driven services used globally.
Tech Stack (Open‑Source)
* Backend: Python, Go
* Frontend: React, TypeScript
* Frameworks: Django, FastAPI
* Databases: PostgreSQL, Redis
* Infrastructure: Linux, Docker, Kubernetes, CI/CD pipelines
* Cloud: AWS
* Testing: Pytest, Jest
You don't need experience with every tool – strong programming fundamentals and a passion for open‑source are key.
Qualifications
* Commercial experience as a Software Engineer (5+ years preferred)
* Strong experience building backend services and familiarity with frontend frameworks
* Experience with open‑source technologies in production
* Comfortable owning features from design through to delivery
* A collaborative mindset and experience working in Agile teams
* Willingness to mentor junior developers and contribute to architectural decisions
Benefits
* Salary: £55,000 - £65,000 depending on experience
* Hybrid working: 2 days per week in the Cambridge office
* 25 days holiday plus UK bank holidays
* Flexible working hours and strong work‑life balance
* Company pension scheme
* Private healthcare and wellbeing support
* Annual learning and development budget
* Modern equipment provided
* Clear progression and senior‑level mentorship opportunities
Why Apply?
This is an excellent opportunity for a Senior Software Engineer to work with modern open‑source technologies, influence product and architecture decisions, and grow within a highly collaborative, technically excellent team in Cambridge.
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Seniority Level
* Mid‑Senior level
Employment Type
* Full‑time
Job Function
* Engineering and Information Technology
* Software Development
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