Senior Backend Engineer Contractor (Java / Ruby focused) | Fully Remote / EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length
Opportunity:
We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep experience across Java and Ruby. This is a high-impact freelance role within a tech-driven established team - building scalable systems in a modern backend environment.
What You'll Be Doing as a Senior Backend Engineer Contractor (Java / Ruby focused) | Fully Remote / EU-Based | Rate £550-650pd | Outside IR35 :
* Designing and building robust backend services across Java, Python, and Rust-based systems
* Collaborating with product and platform teams to scale critical infrastructure
* Contributing to performance optimisation, secure coding, and clean architecture decisions
* Bringing in best practices across multiple programming paradigms and languages
* Ideally, supporting legacy Ruby codebases or integrations where needed
Core Skills for the Senior Backend Engineer Contractor (Java / Ruby focused) | Fully Remote / EU-Based | Rate £550-650pd | Outside IR35 :
* Senior-level backend experience with both Java and Python in production systems
* Proven work with Rust (production experience strongly preferred)
* Familiarity with Ruby or willingness to support legacy pieces if required
* Strong grasp of APIs, cloud-native systems, and scalable architecture
* Freelance mindset: able to hit the ground running, communicate clearly, and add value fast
Details for the Senior Backend Engineer Contractor (Java / Ruby focused) | Fully Remote / EU-Based | Rate £550-650pd | Outside IR35
* Contract: LTD company (UK) / B2B
* Location: Remote (must be EU-based for legal/timezone reasons)
* Duration: Long-term engagement potential
* Start: ASAP
If interested in this Senior Backend Engineer Contractor (Java / Ruby focused) | Fully Remote / EU-Based | Rate £550-650pd | Outside IR35, please apply here and we will contact you if it's a good match! :)