Lead Rails Architect (DRWN)

Project overview

Job title - Technical Lead / Rails Architect

Client Location - United Kingdom (remote, nearshore)

Remote work offering - 100%

Client Industry - Public Sector

Contract Length - 6 months

Contract type - Freelance (B2B)

Project focus

You'll be the hands-on technical lead for a Ruby on Rails delivery team building and modernising digital services for a UK public sector client. You'll own the application architecture and API design, set engineering standards, review code, shape the CI/CD pipeline and act as the senior technical voice in conversations with client stakeholders.

Key skills and Experience required

If this role is of interest, please apply with an updated CV.

Darwin Recruitment is acting as an Employment Business in relation to this vacancy.

• 5+ years' commercial experience with Ruby, with deep Ruby on Rails expertise
• Proven track record as a hands-on Tech Lead or Architect on Rails applications
• Strong API design experience (REST, versioning, documentation)
• Solid PostgreSQL skills, including schema design and performance tuning
• Leading code reviews and setting engineering standards and best practice
• Building and improving CI/CD pipelines
• Confident client-facing communicator, comfortable working with technical and non-technical stakeholders
• Experience delivering for UK public sector clients is highly desirable
• Must be based in Portugal, Poland or Romania

Project details

• Start: date 11/2026
• Duration: 6 months
• Remote: remote
• Location: Warsaw, Poland, PL