Senior Software Engineer

Senior Software Engineer
Salary: £55,000 - £65,000
Location: Cambridge (Hybrid - 2 days per week in office)
Industry: Open-Source Software / Data & Collaboration Platforms

The 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.

What You'll Be Working On

• 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.

What They're Looking For

• 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

Salary & 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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