Senior Developer - (Ruby On Rails)

Summer Browning; Greater London; Remote; GBP 55,000 - 75,000; Full time

Job summary

Summer Browning is seeking a Ruby on Rails Developer for a 6‑month contract. The role offers remote work with occasional London office visits for key meetings, with positions in London, Bristol or Manchester.

You will contribute to backend development, cloud‑focused web applications, and modern software practices such as TDD, CI, code reviews, and Agile teamwork, while sharing knowledge and mentoring colleagues.

Qualifications

• Experience in back-end development with Ruby on Rails.
• Awareness of cloud-based web app technologies (HTTP, databases, backups, CDNs, search).
• Experience with containers (Docker/Kubernetes) and cloud platforms (AWS, GCP, Azure).
• Understanding of software design principles and best practices.
• Familiarity with automated testing, TDD, CI, pair programming, code review and version control.
• Knowledge of OWASP Top 10 and mitigations.
• Experience in agile, collaborative environments and multidisciplinary approaches.
• Interest in mentoring others and sharing knowledge across teams.

Skills

Ruby on Rails

Backend development

Cloud technologies

HTTP & databases

Containers (Docker/Kubernetes)

AWS, GCP, Azure

Software design principles

Automated testing (TDD)

CI / Continuous integration

Pair programming

Code review

Version control

OWASP Top 10

Agile / cross-functional

Technical leadership

Mentoring junior staff

Knowledge sharing

Job description

SBA are currently supporting our Central Government client who are seeking a Ruby on the Rails Developer on an initial 6 month contract.

Location:London, Bristol or Manchester - (the team works predominantly remote, with ad-hoc visits into the London office for key meetings)

Skills and experience required:

• Experience in back-end development, with knowledge of at Ruby on Rails programming language used for back-end web development.
• An awareness of technologies used for cloud-based web applications, such as HTTP, databases, backups, CDNs, search, containers (e.g. docker or kubernetes) and cloud computing (e.g. AWS, Google Cloud Platform or Azure)
• Understanding of software design principles, and an ability to apply them
• Familiarity with modern software development approaches such as automated testing, test driven development (TDD), continuous integration, pair programming, code review and version control
• Understanding of common web security risks such as OWASP Top 10, and the corresponding mitigations
• Enjoy researching and learning new programming tools and techniques and sharing their skills with others
• Have experience working in a collaborative environment, and an understanding of the benefits of agile and multi-disciplinary approaches
• a desire to use their skills and experience to make a genuine difference, and to work on important services that are used by millions of people
• provide technical leadership within a team, advising and working with developers to identify the best approaches and solutions
• take responsibility for solving complex issues, drawing upon a broad knowledge of web technologies
• have proven experience of modern software development approaches including automated testing, test driven development, continuous integration, pair programming, code review and version control
• have experience in management, helping colleagues with their career development and coaching more junior staff members
• share knowledge among the GDS teams, ensuring that your team is understood by others and understanding the working of the wider organisation

NB: Active SC required (within the preceding 12 months)