Ruby on Rails Developer
Posted 3 days ago by Harnham
£500 Per day
Undetermined
Remote
London, England, United Kingdom
Summary: The role is for a Senior Ruby on Rails Developer focused on building automation tools for regulatory processes in the US retirement sector. The position involves hands-on back-end development within a collaborative product team, contributing to a platform that enhances compliance management. Candidates should enjoy solving complex technical challenges and have experience with large-scale systems. The role is remote and offers a competitive daily rate.
Key Responsibilities:
- Writing scalable, production-ready Ruby code within a mature codebase
- Designing and optimising relational data models and SQL queries for performance
- Building background jobs and distributed systems to handle high data volumes
- Translating fuzzy business logic into clearly defined technical solutions
- Participating in team discussions, pair programming, and peer code reviews
Key Skills:
- Expert-level Ruby on Rails experience
- Advanced SQL knowledge and data modelling skills
- Comfortable with front-end technologies like React and GraphQL
- Experience working on complex, interdependent systems
- Strong attention to detail, with the ability to work independently in a fast-paced environment
- Familiarity with AI coding tools (e.g., Copilot, Cursor) is a plus, but not required
Salary (Rate): £500.00/daily
City: London
Country: United Kingdom
Working Arrangements: remote
IR35 Status: undetermined
Seniority Level: Senior
Industry: IT
RUBY ON RAILS DEVELOPEr 3-6 months £400-£500 PER DAY REMOTE (UK-BASED) We're partnering with an innovative technology firm on a high-impact contract role for a Senior Ruby on Rails Engineer. This project focuses on building automation tools that help streamline and modernise regulatory processes in the US retirement sector. If you enjoy solving nuanced technical challenges with elegant engineering and working with large-scale, rule-driven systems, this is for you.
THE CLIENT Our client is a mission-driven SaaS company developing intelligent systems that support compliance in the retirement benefits space. Their engineering team is highly collaborative and driven by real-world problem-solving. You'll be contributing to a platform used by major plan administrators, directly affecting how compliance risk is managed at scale.
THE ROLE You'll be working within a product team responsible for a critical engine that runs large-scale compliance checks on dynamic datasets. The system ingests user data and performs complex rule evaluations, helping users get real-time visibility into compliance outcomes. Your role will be hands-on, focused on back-end development using Ruby on Rails, with opportunities to work across the stack.
Key responsibilities:
- Writing scalable, production-ready Ruby code within a mature codebase
- Designing and optimising relational data models and SQL queries for performance
- Building background jobs and distributed systems to handle high data volumes
- Translating fuzzy business logic into clearly defined technical solutions
- Participating in team discussions, pair programming, and peer code reviews
SKILLS & EXPERIENCE Expert-level Ruby on Rails experience Advanced SQL knowledge and data modelling skills Comfortable with front-end technologies like React and GraphQL Experience working on complex, interdependent systems Strong attention to detail, with the ability to work independently in a fast-paced environment Familiarity with AI coding tools (e.g., Copilot, Cursor) is a plus, but not required
HOW TO APPLY Please register your interest by sending your CV via the apply link or