Senior Full Stack Engineer

As a senior member of the engineering team, you'll have broad ownership across product development, platform improvements and technical decision-making.

• Taking ownership of core product development across backend, frontend and infrastructure
• Helping establish engineering standards, processes and best practices
• Driving improvements in testing, deployment and documentation
• Contributing to architecture and platform modernisation initiatives
• Supporting cloud migration and infrastructure evolution
• Working closely with product and design teams to deliver new features
• Mentoring engineers as the team grows
• Helping shape the company's AI-assisted engineering strategy

Technology Stack

Ruby on Rails, PostgreSQL, Redis, Sidekiq, Vue.js, AWS, Docker, GitLab, Cloudflare

• Strong commercial experience building and maintaining production Ruby on Rails applications
• Full-stack development capability across backend and frontend technologies
• Experience working with PostgreSQL in high-volume production environments
• Strong understanding of cloud infrastructure and AWS services
• Experience with Docker and modern deployment pipelines
• Solid knowledge of REST APIs, authentication and system integration
• Strong automated testing mindset, ideally with RSpec and TDD practices
• Experience owning features and services end-to-end
• Ability to operate autonomously in a fast-moving environment

Highly Desirable

• Sidekiq and background job processing expertise
• Stripe or payment platform integrations
• Event-driven architectures
• WebSockets / real-time applications
• AI-assisted development workflows and tooling
• Experience scaling SaaS platforms
• Startup or scale-up experience

The Ideal Person

You'll likely thrive here if you are:

• Product-minded and commercially aware
• Comfortable working with ambiguity
• Naturally curious and self-directed
• Strong communicator who can explain technical concepts to non-technical stakeholders
• Excited by ownership and accountability
• Interested in helping shape engineering culture and technical standards
• Passionate about modern software engineering practices

If you're an experienced full-stack engineer who enjoys taking ownership, solving complex technical challenges and working in a collaborative, fast-moving environment, we'd love to hear from you.

• Salary up to £100,000
• Potential bonus scheme
• Unlimited annual leave
• Hybrid working
• Opportunity to influence technical direction and engineering standards
• Work on complex platform, infrastructure and migration projects
• Join a growing SaaS business with ambitious expansion plans

About the Business

• Established SaaS platform with strong recurring revenue
• Serving thousands of customers globally
• Significant growth plans over the next five years
• Product-led organisation operating in the health, fitness and coaching technology sector
• Strong leadership team with experience scaling successful consumer and technology businesses
• Long-term focus on AI adoption, automation and data-driven product development