Salary: £52,000 - 87,000 per year Requirements: 7 years experience developing scalable, web-based applications. Strong expertise in React and modern frontend frameworks. Deep proficiency in TypeScript and client-side performance optimisation. Commercial experience with Ruby on Rails and Node.js. Solid understanding of RESTful APIs and relational databases (e.g. PostgreSQL). Experience working with CI/CD pipelines and cloud infrastructure (AWS/Heroku). A proactive, solution-focused mindset with strong problem-solving ability. Excellent communication skills and the confidence to collaborate across teams. Responsibilities: Develop and deliver scalable, user-focused features in collaboration with Product and Design teams. Lead frontend development using React, TypeScript and Tailwind CSS to create seamless user experiences. Contribute to backend services using Ruby on Rails and Node.js. Optimise application performance, scalability and security across the platform. Write and maintain automated tests to ensure reliability and code quality. Participate in code reviews and mentor junior developers to drive engineering standards. Support and contribute to infrastructure across Heroku and AWS. Take ownership of technical improvements and proactively identify opportunities to enhance the platform. Technologies: AWS Backend CI/CD Cloud CSS Frontend Heroku Support PostgreSQL Rails React Ruby Security TypeScript Web NodeJS JavaScript More: We are transforming Select Car Leasing into a tech-enabled mobility platform and are looking for a Senior Software Engineer to help drive that journey. This is an opportunity to shape the architecture, performance, and user experience of a market-leading leasing platform used by thousands of customers across the UK. We offer competitive salary, hybrid working, clear progression and career development, and a supportive, ambitious team environment. Benefits also include an Employee Assistance Program, family-friendly policies, enhanced sick pay, a pension scheme, mindfulness coaching, and social events. last updated 13 week of 2026