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 Python , strong exposure to Rust , and ideally a touch of 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:
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:
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:
Contract : LTD company (UK) / B2B
Location : Remote (must be EU-based for legal/timezone reasons)
Start : ASAP
If interested, please apply here and we will contact you if it's a good match! :)
We use essential cookies to make this site work. With your permission we would also like to use the optional cookies below. Nothing optional is set until you choose, and you can change your mind at any time from "Cookie settings" at the bottom of every page. Cookie policy.
Essential — keep the site working and secure, and remember the choice you make here. Always on.