Junior Backend Engineer

A Bit About Us

We’re a multi-award-winning digital payments and insight platform within the automotive industry. We work with over 5,000 automotive retailers, helping drivers to pay for motoring costs, accessories, and other services through a variety of different payment options.

Our purpose is to build a solution that gives drivers peace of mind while enhancing customer experience and assisting with dealer profitability.

Bumper is a fast-growing payment scale‑up that recently completed a successful Series B funding round in 2024.

We’re looking to hire a dynamic and passionate Junior Backend Engineer based in either Sheffield or London.

Our Head Office is in Sheffield City Centre, with offices also based in London and Turkey, and we’ve expanded further into Ireland, Germany and Spain.

We’re looking for a Junior Backend Engineer to join our passionate and fast‑moving Tech Team. In this role, you’ll support the development and improvement of our backend services and systems that power our products.

You’ll contribute to building reliable, high‑performing, and user‑friendly applications, while learning from experienced engineers and developing your technical skills in a collaborative environment.

You’ll report to the Engineering Manager and work closely with engineers, product teams, and other stakeholders to help deliver seamless and scalable solutions across the Bumper platform.

This is a full‑time hybrid role working from either of our UK offices (Sheffield or London – Hammersmith). Our ideal candidate would be able to work at least three days per week from one of these locations.

• Support the development, maintenance, and improvement of backend services and APIs
• Assist in troubleshooting, debugging, and resolving system issues
• Collaborate with engineers and cross‑functional teams to contribute to feature delivery
• Write clean, secure, and well‑documented code following best practices
• Help monitor and improve application performance, reliability, and efficiency
• Participate in code reviews and team discussions to learn and contribute to code quality
• Contribute to development workflows, including version control using Git
• Take part in Agile ceremonies such as stand‑ups, sprint planning, and retrospectives
• Continuously learn and develop your technical skills with support from the team

• 2+ years experience developing backend systems in a production environment
• 2+ years experience with Python and Django/Flask
• Knowledge of SQL databases and experience optimising database performance
• Understanding of software design principles and experience in REST APIs
• Proficiency in Git and version control best practices
• Focus on performance, accessibility, and user experience
• Strong time‑management skills and the ability to meet deadlines
• Great collaboration skills for cross‑departmental projects
• A degree in Computer Science

• Experience working in fintech, payments, e‑commerce, or automotive sectors
• Experience working with ALMs tools

• Competitive Salary
• Company bonus scheme
• Private Healthcare and Medicash plan
• 26 days holiday + bank holidays, plus volunteer days throughout the year (prorated)
• Tax‑saving Salary Sacrifice Pension with Aviva
• Salary sacrifice Cycle to Work, Octopus Electric Vehicle, and Nursery fee schemes available
• Access to a benefits platform, with an allowance of £250 per year for wellbeing and £150 per year for development
• Our Bumper Flex policy for better work/life balance
• Annual company‑wide Bumper Retreat – a few days of fun, collaboration, and mingling (make sure your passport is in date!)
• If and when the time comes, we will give 4 months paid leave to primary carers, and 1 month of paid leave to secondary carers

This position is not eligible for visa sponsorship. We can only consider candidates who already have the right to work in the UK.