Senior Backend Engineer Contractor (Java / Ruby focused) | Fully Remote / EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length
Posted 2 days ago by Owen Thomas | Pending B Corp™ on Linkedin
Negotiable
Outside
Remote
United Kingdom
Summary: The Senior Backend Engineer Contractor role focuses on developing robust backend services primarily using Java and Ruby within a tech-driven team. This fully remote position requires deep experience in backend development and offers a long-term engagement opportunity. The contractor will collaborate with various teams to optimize performance and ensure clean architecture. The role is outside IR35, allowing for flexible contracting arrangements.
Key Responsibilities:
- 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
- Supporting legacy Ruby codebases or integrations where needed
Key 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
Salary (Rate): 650
City: undetermined
Country: United Kingdom
Working Arrangements: remote
IR35 Status: outside IR35
Seniority Level: Senior
Industry: IT