Jobs in Southampton, United Kingdom

Staff Software Engineer (Go)

Tech4Good

UK Remote First

£105,000–£140,000 + Equity

Wedo has partnered with a Tech4Good Series B start-up who are building technology that impacts tens of millions of people every year. Our client is a B Corp, featured as one of the fastest-growing companies in the UK, and they’re now looking for a Staff Software Engineer who can own Go service development for their core platform, while having a wider impact by owning architecture patterns, setting standards, influencing strategy, and driving wider Go adoption.

Their previous services were written in Node / Next.js, which hit performance limits. They put together a Go proof of concept which showed they could 10x performance, so all new services and feature development are now being built in Golang. They have 2 Go Engineers in the business and are hiring 2 more. This is an IC role and suitable for anyone who’s already a Senior looking to step up, or someone already operating at Principal or Staff level.

• Build new features and evolve the platform using Golang
• Drive best practice in Go development and testing
• Design and create automated tests across the full testing pyramid
• Improve system performance, data modelling, reliability and UX
• Shape architectural decisions and unblock complex problems
• Mentor engineers adopting Go and level up engineering standards
• Champion product-thinking, always tying decisions back to user need

• Commercial experience building Go services in production in at least 2 different companies
• Willingness to unblock yourself and work with TypeScript / React for ~10% of the work, with appetite to learn on the job
• PostgreSQL expertise
• Automated testing mindset (ideally TDD)
• Solid grounding in design patterns
• Cloud deployment experience (Kubernetes preferred)
• Kafka, Debezium or broader event-driven systems knowledge
• AWS experience

• Fuelled by purpose, not perks
• Excited by scale, ambiguity, and building from the ground up
• Curious, collaborative, and generous with knowledge
• Someone who gives and receives feedback well
• Able to influence direction, not just follow it
• Product-thinking, pragmatic, and comfortable making trade-offs

You don’t need to tick every box. If the mission resonates, you should apply.

Technical Deep Dive – Go Project Walkthrough

Architecture, decisions, trade-offs, lessons learned.

Pairing Session (60 mins)

Hands‑on with a Staff Engineer.

Final Conversation – VP Engineering + Founder

If you’re the type of engineer who wants to build software that matters and have fun doing it, then this is the right gig for you.

Apply by connecting with Jack Cole and sending your CV — or just hit apply today.