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# Mid-Level Ruby on Rails Engineer - Build Scalable Systems

- **Company:** Hnry
- **Location:** London, UK
- **Experience:** Experienced
- **Salary:** £55,000.0 - £62,750.0
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, Automation of Tests, Code Coverage, Code Review, Continuous Delivery, PostgreSQL, Ruby on Rails, ReactJS, Terraform, Docker
- **Published:** August 18, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/x/44362134/

## About the Role

build robust solutions Actively monitor systems, identify problems and propose solutions Approach problems with a curious mindset and empathy for the end user, always considering the impact of changes Have experience with automated testing Enjoy discussions about software/product design and crafting solutions Have full working rights in New Zealand Bonus points Experience building large scale systems Experience being self-employed (freelancing, contracting etc) in any industry/profession Experience using Ruby on Rails How we work We follow agile practices, delivering improvements iteratively in small chunks. We track the impact of our work and measure ourselves on results, not the amount of code written. We're growing fast, and are focused on building a well designed, scalable & robust platform. In some areas of the work (e.g. payment processing) there is very little margin for error. Our technology platform is built in Ruby on Rails, and we also use a bunch of AWS
services (via Terraform), Postgres, Docker, and a little bit of React. We have automated tests, continuous deployment, and release to production multiple times per day. We review each others code, and set aside time for hacking on experimental features, refactoring and/or learning new things. We work hard and finish on time, no crazy hours. Salary banding: £55,000 - £62,750 per annum At Hnry, we operate a policy of pay parity across our organisation to ensure that all Hnry staff are fairly and equally compensated based on their contributions and experience. The salary for this role will be determined based on the applicant's experience. #J-18808-Ljbffr

## Description

customers and all members of the business to actively identify problems and propose solutions Following best practices in building robust and reliable software and encouraging the same among colleagues Take responsibility for delivering functionality from concept through to production release and post-release maintenance Produce work that meets the expected level of test coverage and improve test coverage across the existing codebase Provide detailed code reviews to colleagues, sharing your knowledge and ensuring that standards are maintained Help design the architecture of new features and present this back to the team for feedback Collaborate with and support other members of the wider Hnry team Act as a mentor and provide support to Junior developers on the team Qualifications Have at least two years experience working as a developer Have excellent communication and collaboration skills - we work together and succeed as a team Be able to take complex problems, break them down, and


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