Senior Software Engineer

Principal / Senior Ruby Engineer | Luxury Commerce Platform | Well-funded start-up | Up to £150k | Flexible working options

I’m currently partnered with a well-funded business building a next-generation commerce platform within the luxury retail space.

While early from an engineering perspective, the group already operates at significant scale and has recently made a number of high-profile acquisitions, bringing multiple established brands into a single ecosystem.

They are now rebuilding their core platform from the ground up to support this, creating a rare opportunity to shape architecture at an early stage, within a business that already has strong commercial traction.

The Opportunity

This is a genuinely high-bar Ruby environment, designed for engineers who want to use the language to its full potential.

You’ll be working within a small, highly experienced team, focused on solving complex systems problems properly, with low process, high trust, and real ownership.

Responsibilities

• Design and architect complex e-commerce systems (inventory, pricing, concurrency, payments)

• Build a scalable platform spanning multiple brands and marketplaces

• Develop high-performance backend systems using Ruby beyond Rails

• Work extensively with distributed systems and third-party integrations

• Contribute to core architectural decisions in a greenfield environment

Core Requirements

• 8+ years backend engineering experience

• Strong Ruby expertise (metaprogramming, DSLs, object model)

• Experience operating at Senior / Principal level

• Proven track record designing complex e-commerce or marketplace systems

• Strong system design and distributed systems experience

• Experience building APIs (REST and/or GraphQL)

• PostgreSQL and performance optimisation experience

Package

💸 Highly competitive base salary DOE

📍 UK hybrid (multiple office locations)

🚀 High ownership, greenfield platform, long-term impact

This isn’t a role for someone looking to stay within conventional Rails patterns. It’s aimed at engineers who care deeply about how systems are designed and built.

If that sounds like you, please click apply.