Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Develop and optimise scalable backend systems using Ruby on Rails.
- Company: Join a rapidly growing tech company focused on high-traffic applications.
- Benefits: Earn up to £90K, enjoy flexible remote work, and receive stock options.
- Why this job: Tackle meaningful engineering challenges in a modern, collaborative environment.
- Qualifications: 4+ years of Ruby on Rails experience and strong API design skills required.
- Other info: Opportunity to influence technical decisions and contribute to architectural improvements.
The predicted salary is between 54000 - 72000 £ per year.
Are you a Senior Ruby on Rails Developer looking to work on scalable, high-traffic applications in a modern, engineering-led environment? We’re growing rapidly and need engineers who can build, optimise, and scale backend systems while maintaining clean, maintainable code.
Join a team that values best practices, automation, and performance, working on a platform that’s continuously evolving to meet increasing demand.
What We Offer:
- Up to £90,000 + stock options
- Flexible remote working (UK based) with a London HQ
- Work on high-scale backend systems that process large volumes of data
- Modern tech stack: Ruby on Rails, PostgreSQL, Redis, Sidekiq, AWS, Docker, Kubernetes
- Opportunity to influence technical decisions & contribute to architectural improvements
Key Responsibilities:
- Developing & optimising scalable backend systems in Ruby on Rails
- Designing, building, and maintaining APIs & integrations
- Improving performance & database efficiency for high-scale applications
- Enhancing existing systems for better performance, scalability, and maintainability
- Working closely with DevOps & product teams to ensure reliability & resilience
What We’re Looking For:
- 4+ years experience with Ruby on Rails
- Experience designing & maintaining APIs
- Strong knowledge of SQL databases
- Understanding of performance tuning & caching strategies
- Comfortable with CI/CD, Docker, and cloud services (AWS preferred)
- Bonus: Kubernetes, Terraform, React
Why Join Us? This is an opportunity to work on meaningful engineering challenges - scaling, optimising, and improving a growing platform. If you enjoy solving technical problems, improving performance, and working in a modern Ruby environment, we’d love to hear from you.
Senior Software Engineer - Ruby on Rails employer: KE Technology
Contact Detail:
KE Technology Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Senior Software Engineer - Ruby on Rails
✨Tip Number 1
Familiarise yourself with our tech stack, especially Ruby on Rails, PostgreSQL, and AWS. Being able to discuss your experience with these technologies in detail will show us that you're a great fit for the role.
✨Tip Number 2
Prepare to showcase your problem-solving skills by thinking of specific examples where you've optimised backend systems or improved performance. We love hearing about real-world applications of your expertise.
✨Tip Number 3
Engage with our community on platforms like GitHub or Stack Overflow. Sharing your knowledge and contributing to discussions can help you stand out as a passionate developer who is eager to learn and collaborate.
✨Tip Number 4
Research our company culture and values. Understanding what we stand for and how we operate will allow you to tailor your conversations during interviews, demonstrating that you're not just a technical fit but also a cultural one.
We think you need these skills to ace Senior Software Engineer - Ruby on Rails
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience with Ruby on Rails and any relevant technologies mentioned in the job description. Focus on projects where you've developed scalable backend systems and optimised performance.
Craft a Compelling Cover Letter: In your cover letter, express your passion for working with Ruby on Rails and your interest in the company's mission. Mention specific examples of how you've contributed to similar projects in the past and how you can add value to their team.
Showcase Relevant Projects: If you have a portfolio or GitHub repository, include links to projects that demonstrate your skills in Ruby on Rails, API design, and performance tuning. This will give the hiring team a clear view of your capabilities.
Highlight Soft Skills: Don't forget to mention your ability to work collaboratively with DevOps and product teams. Emphasise your problem-solving skills and adaptability, as these are crucial in a fast-paced engineering environment.
How to prepare for a job interview at KE Technology
✨Showcase Your Ruby on Rails Expertise
Be prepared to discuss your experience with Ruby on Rails in detail. Highlight specific projects where you've developed scalable backend systems, and be ready to explain the challenges you faced and how you overcame them.
✨Demonstrate API Design Skills
Since the role involves designing and maintaining APIs, come equipped with examples of APIs you've built or worked on. Discuss the design decisions you made and how they contributed to the overall performance and usability of the application.
✨Discuss Performance Tuning Strategies
Understanding performance tuning is crucial for this position. Be ready to talk about your experience with optimising database queries, caching strategies, and any tools you've used to monitor and improve application performance.
✨Familiarise Yourself with the Tech Stack
Make sure you have a good grasp of the technologies mentioned in the job description, such as PostgreSQL, Docker, and AWS. If you have experience with Kubernetes or Terraform, be sure to mention it, as it could set you apart from other candidates.
