Senior / Staff Full stack engineer | Django / Ruby (Primary) | React (Strong) | Java or Rust (Secondary) | Fully Remote (EU-based) | £500-600/day | Outside IR35 | 12-month contract at Owen Thomas | Pending B Corp™, United Kingdom, £500-£600 per day

Senior / Staff Full stack engineer | Django / Ruby (Primary) | React (Strong) | Java or Rust (Secondary) | Fully Remote (EU-based) | £500-600/day | Outside IR35 | 12-month contract

The Opportunity

We’re partnering with a fast-scaling, globally distributed tech business that’s investing heavily in the evolution of its platform - modernising backend services, improving frontend experiences, and setting long-term architectural direction.

They’re looking for a Senior Full Stack Engineer (Contract) with strong experience in Django or Ruby, who is genuinely comfortable building production-grade UIs with React, and has experience in either Java or Rust (with the willingness to deepen skills in the other).

This is a high-impact, long-term contract within an experienced product-focused engineering team.

It’s well suited to a contractor who enjoys owning features end to end, working close to product, and contributing to a platform that values performance, scalability, and clean design - supported by modern, AI-assisted development practices.

What You’ll Be Doing as a Senior / Staff Full stack engineer | Django / Ruby (Primary) | React (Strong) | Java or Rust (Secondary) | Fully Remote (EU-based) | £500-600/day | Outside IR35 | 12-month contract

• Designing and building end-to-end features across backend and frontend
• Developing backend services primarily in Django or Ruby
• Building and maintaining frontend components using React
• Contributing to backend systems written in Java or Rust, with scope to grow into the other language
• Working closely with product, design, and platform teams to deliver customer-facing functionality
• Helping shape technical decisions as the platform evolves
• Applying best practices around clean architecture, performance, reliability, and security
• Using AI tools in your daily development workflow (e.g. coding assistance, refactoring, testing, debugging)

Core Skills & Experience Senior / Staff Full stack engineer | Django / Ruby (Primary) | React (Strong) | Java or Rust (Secondary) | Fully Remote (EU-based) | £500-600/day | Outside IR35 | 12-month contract

Essential

• Senior-level experience as a Full Stack Engineer in production environments
• Strong backend experience with Django or Ruby
• Strong frontend experience building user interfaces with React
• Commercial experience with either Java or Rust
• Solid understanding of APIs, scalable architecture, and modern frontend practices
• Experience working in cloud-native environments
• Comfortable using AI-assisted development tools day to day
• Contractor mindset: able to onboard quickly, communicate clearly, and deliver value fast

Strongly Preferred

• Willingness to learn across languages and layers (Django ↔ Ruby, Java ↔ Rust)
• Experience owning features end to end in product-led teams
• Background in fast-growing or evolving platforms

Nice to Have

• Experience with both Django and Ruby
• Exposure to performance-sensitive or systems-level backend components
• Interest in improving developer experience or internal tooling

Contract Details Senior / Staff Full stack engineer | Django / Ruby (Primary) | React (Strong) | Java or Rust (Secondary) | Fully Remote (EU-based) | £500-600/day | Outside IR35 | 12-month contract

• Contract Type: LTD Company (UK) / B2B
• Location: Fully remote (EU-based required for legal & timezone reasons)
• Rate: £500–600 per day (Outside IR35)
• Duration: 12 months, with strong extension potential
• Start Date: ASAP

If you’re a Full Stack Engineer contractor who enjoys building features end to end with Django/Ruby and React, and wants exposure to Java and Rust within a modern, forward-looking platform team, this is a strong long-term opportunity.

Apply here, and we’ll be in touch if it looks like a good fit. :)