Senior Full Stack Engineer (Ruby on Rails)

As a high-performing SME with a global customer base, we're looking for a senior full stack engineer to maintain and improve our core platforms and work closely with a small, high-performing team to deliver simple, scalable software that delights our customers.

Alongside your engineering peers, you'll be responsible building and maintaining our Rails-based platform and React Native mobile app infrastructure. You'll also shape technical direction, peer coach teammates, and drive quality delivery.

This is a perfect role for someone who thrives in high-autonomy environments, enjoys solving real user problems, and wants to influence technical direction while remaining deep in the code.

You will report to our Engineering Manager.

Salary: £60,000-£80,000 based on experience and location.

What You'll Do

• As part of the engineering team, maintain a high bar for technical quality, pragmatic decisions, and delivery pace
• Hands-on in our codebase: working primarily with Ruby on Rails (including Hotwire/Turbo) and occasionally with React Native
• Contribute to and guide architectural decisions, shaping how we scale the product and our team
• Pair with other engineers, giving thoughtful feedback and context
• Collaborate closely with Product and Design to break down work and scope solutions with the customer in mind
• Spot risks early and support technical initiatives that improve our product, platform, and ways of working
• Champion automated testing, observability, documentation, and code clarity
• Influence the team's ways of working through thoughtful code review, refactoring, and knowledge sharing
• Uphold a culture of simplicity, empathy, and continuous learning

• 7+ years of software engineering experience, with at least 3+years in Ruby on Rails (Hotwire experience a big plus)
• Comfortable working with full-stack tools: Rails, Postgres, Redis/Memcached, Sidekiq, Typescript, Tailwind
• Experience in designing, building, and maintaining either GraphQL or RESTful APIs
• Experience working with either Heroku or AWS
• Strong grasp of testing, CI/CD, debugging and system performance
• Experience working in or adjacent to product teams, and ability to reason from first principles
• Experience in influencing technical direction; through peer programming, writing, reviews, and technical judgement
• Strong communication skills; you able to translate technical ideas for stakeholders and bring others along
• A strong sense of ownership; you are about the work you do, and the impact it has
• Interest in experimenting with new technologies to improve the customer experience

• Love Innovation - You simplify, experiment, and move things forward. You're not afraid to clean up legacy logic or try a new tool where it makes sense.
• Lead With Heart - You support your teammates, share your learnings, and offer feedback with care and candour.
• Yearn to Learn - You're hungry to grow and help others grow. You're curious and proactive, always levelling up your craft.
• Own It - You take responsibility for your impact and follow through on commitments, even the small ones.
• Be The Greatest - You pursue quality with humility. You don't cut corners, and you help the team raise its standards.

• 28 days holiday + public holidays
• Flexible Benefits via Happl
• Choice between Private Healthcare Plan or Wellbeing Allowance
• Salary Sacrifice Pension
• Salary Sacrifice Childcare Scheme
• Modern Employee Assistance Programme / Counselling via Spill. Unlimited structured sessions.
• Flexible working including ability to work from home regularly
• Training & Development
• Engaging off-sites and fun socials
• Enhanced Maternity and Paternity incl. enhanced neonatal care pay