Senior Software Developer

Senior Ruby on Rails Engineer, London, £90,000 - £105,000 + Bonus

We're working with a growing SaaS company solving one of ecommerce's biggest barriers—buyer trust. Their platform quietly supports hundreds of thousands of retailers and millions of online purchases every month. Growing organically year-on-year at an impressive rate, they've built a loyal customer base in well over 100 countries by focusing on product quality, speed, and developer-led innovation.

The Senior Software Developer (Full‐stack) will work across Ruby on Rails, JavaScript, SQL, and AWS to deliver high-quality solutions with purpose. You'll own meaningful product features end to end, improve engineering systems from the inside out, and collaborate closely with Product and Design to shape outcomes that drive global merchant success.

The Senior Software Developer (Full‐stack) will:

• Ship high-impact product features from design to deployment

• Enhance internal tooling, workflows, and developer experience

• Write maintainable, well-tested code across the full stack

• Drive quality and reliability in systems at serious scale

• Break down ambiguous projects into clear, executable steps

You will need:

• Deep experience with Ruby on Rails and modern JavaScript

• Proven ability to deliver production code at speed

• A strong grasp of system architecture and trade-offs

• Familiarity with AWS, SQL databases, and scalable infrastructure

• A pragmatic mindset and a bias for action over consensus

Why you'll love it:

• £90,000–£100,000 salary + bonus (monthly) & private Vitality health cover

• 30 days holiday + bank holidays

• Flexible hybrid model (3 days remote / 2 days London)

• Weekly team meals, quarterly events & casual office vibe

• Work from anywhere flexibility

If you're a senior Ruby on Rails full stack developer looking for deep product ownership, technical challenge, and real-world impact—this is your chance to join a high-growth, product-led team making trust in global commerce possible. Apply now to explore your next big move.