At a Glance
- Tasks: Own and evolve backend systems using Ruby on Rails to enhance operational workflows.
- Company: Join a Series A tech company focused on making rail travel accessible for everyone.
- Benefits: Enjoy private healthcare, hybrid working, 25 days holiday, and volunteering leave.
- Other info: Dynamic culture valuing ownership, clarity, and impact with excellent career growth opportunities.
- Why this job: Make a real impact in the rail industry while working with cutting-edge technology.
- Qualifications: 4+ years of Ruby on Rails experience and strong skills in PostgreSQL and API design.
The predicted salary is between 36000 - 60000 £ per year.
Our Passenger Assistance platform turns passenger assistance requests into coordinated action inside live rail operations. We are hiring a Mid-Senior Ruby on Rails Engineer to own and evolve our operational systems, ensuring stability and production reliability in close collaboration with cross‑functional teams.
Strategic Context
Transreport exists to remove structural barriers in rail travel. Our vision is that everyone has access to travel everywhere. As a Series A technology company and recipient of a King’s Award, we operate across the UK, Japan and the EU, delivering award‑winning accessibility and safety platforms that have supported over 10 million assistance requests for more than 1 million users. As our operational demands grow, our backend systems must support increasing integrations, regulatory complexity, data volume, and reliability expectations.
Outcomes & Impact
- Within 6 months, you will:
- Take ownership of two operational Rails platforms.
- Improve test coverage and architectural documentation (e.g., C4 models).
- Stabilise key third‑party integrations and reduce recurring production issues.
- Strengthen monitoring and observability practices.
- Act as a trusted backend partner for Product and Platform teams.
- Within 12 months, you will:
- Confidently own and evolve multiple backend systems.
- Improve database performance and background job efficiency.
- Reduce operational risk across TOC integrations.
- Strengthen CI/CD reliability and deployment confidence.
- Contribute to longer‑term backend architecture improvements and scalability planning.
Tasks
- Own & Evolve Backend Systems: Maintain and improve our Ruby on Rails applications supporting operational workflows.
- Technical Quality: Write clean, well‑tested code and uphold strong security and data integrity standards.
- Integrations: Manage third‑party integrations, ensuring reliable and secure data exchange.
- Infrastructure Collaboration: Work with the Platform team on AWS‑based deployments and CI/CD processes.
- Performance & Reliability: Optimise background processing and database performance to maintain system stability.
- Incident Response: Support investigation and resolution of production issues.
- Cross‑Functional Collaboration: Partner with Frontend and Mobile engineers to deliver robust, scalable APIs.
- Continuous Improvement: Contribute to improving deployment practices, monitoring, and long‑term maintainability.
- Operational Accountability: Act as the technical owner of production systems that directly impact live rail operations, ensuring high availability and rapid incident resolution.
Requirements
Must Haves:
- 4+ years of professional experience with Ruby on Rails.
- Strong understanding of object‑oriented programming and Rails architecture.
- Extensive experience with PostgreSQL, including performance tuning and complex queries.
- Experience with background job processing using Sidekiq and Redis.
- Solid understanding of RESTful API design, JSON serialization, and authentication (e.g., JWT, SSO).
- Hands‑on experience with AWS services and containerised deployments (Docker).
- Experience troubleshooting and supporting production systems.
- Comfortable working within and improving existing codebases.
- Ability to prioritise effectively and manage multiple initiatives.
- Strong written and verbal communication skills in English.
- Experience working in Agile/Scrum environments with Git/GitHub.
Nice to Haves:
- Experience working with SOAP/XML integrations.
- Experience migrating serverless components (e.g., AWS Lambda) into Rails applications.
- Familiarity with Vue.js to support frontend collaboration.
- Experience working with mobile applications (React Native / Kotlin / Swift).
- Experience working in regulated industries or multi‑client B2B systems.
- Contributions to open‑source Ruby projects or technical blogging.
Benefits
- Private healthcare after your probation (including children).
- Hybrid working model.
- 25 days holiday.
- Volunteering Leave.
- Free flu jab for you and your family.
Culture & Operating Principles
We value: Ownership over hierarchy, Clarity over bureaucracy, Impact over job titles. We operate with high autonomy and high accountability. People are expected to raise risks early, communicate clearly, and take responsibility for outcomes.
Interview Roadmap
- Screening Call (30 mins) – Recruiter alignment.
- Technical Exercise – Rails architecture & integration discussion.
- Final Culture Conversation – Leadership alignment.
Guaranteed Interview Scheme
We’re a Disability Confident employer and we welcome applications from disabled candidates. If you need any adjustments at any stage of the recruitment process, please tell us what would help – we’ll work with you to make the process as accessible as possible. We also offer a Guaranteed Interview Scheme (GIS) for candidates who consider themselves to have a disability as defined under the Equality Act 2010. If you indicate this option in your application and your application demonstrates that you meet the essential criteria for the role, you’ll be invited to interview or assessment. Choosing GIS doesn’t guarantee a job offer. If you have any questions, please get in touch.
Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK) employer: Transreport Limited
Transreport is an exceptional employer that champions accessibility and innovation in rail travel, offering a hybrid working model that promotes work-life balance. With a strong focus on employee growth, we provide opportunities for professional development and encourage ownership and accountability within a collaborative culture. Our commitment to inclusivity is reflected in our Disability Confident status, ensuring a supportive environment for all team members.
StudySmarter Expert Advice🤫
We think this is how you could land Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, attend meetups, and engage with Ruby on Rails communities. You never know who might have the inside scoop on job openings or can refer you directly.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your Ruby on Rails projects. This is your chance to demonstrate your expertise and problem-solving abilities, making you stand out to potential employers.
✨Tip Number 3
Prepare for interviews by brushing up on common technical questions and coding challenges related to Ruby on Rails. Practise explaining your thought process clearly, as communication is key in collaborative environments.
✨Tip Number 4
Apply through our website! We love seeing candidates who are genuinely interested in our mission. Tailor your application to highlight how your experience aligns with our goals, especially in improving accessibility in rail travel.
We think you need these skills to ace Mid-Senior Ruby on Rails Engineer (B2B SaaS | Hybrid | UK)
Some tips for your application 🫡
Tailor Your CV:Make sure your CV reflects the skills and experiences that match the job description. Highlight your Ruby on Rails experience and any relevant projects you've worked on, especially those related to B2B SaaS.
Craft a Compelling Cover Letter:Use your cover letter to tell us why you're passionate about accessibility in rail travel. Share specific examples of how you've contributed to similar projects or how you can help us achieve our mission.
Showcase Your Technical Skills:Don’t just list your technical skills; demonstrate them! If you’ve worked with PostgreSQL, AWS, or any other relevant technologies, include examples of how you’ve used them to solve real-world problems.
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows us you’re keen to join our team!
How to prepare for a job interview at Transreport Limited
✨Know Your Ruby on Rails Inside Out
Make sure you brush up on your Ruby on Rails knowledge before the interview. Be prepared to discuss your experience with Rails architecture, object-oriented programming, and any specific projects you've worked on. Highlight your understanding of performance tuning with PostgreSQL and how you've tackled complex queries.
✨Showcase Your Problem-Solving Skills
Since the role involves maintaining operational systems, be ready to share examples of how you've resolved production issues in the past. Discuss your experience with incident response and how you've improved system stability. This will demonstrate your ability to handle real-world challenges effectively.
✨Familiarise Yourself with Their Tech Stack
Take some time to research the technologies mentioned in the job description, like Sidekiq, Redis, and AWS services. If you have experience with containerised deployments using Docker, make sure to mention it. Showing that you're comfortable with their tech stack will give you an edge.
✨Prepare for Cross-Functional Collaboration Questions
As this role requires working closely with frontend and mobile engineers, think about your past experiences collaborating with different teams. Be ready to discuss how you’ve contributed to building robust APIs and how you communicate technical concepts to non-technical team members.
