Backend Engineer (.NET

We are a fast-moving technology company, and one of the most successful providers of online reward and benefits solutions in the world. We believe that everyone deserves an exceptional experience at work, every day, and build workplace technology that makes this happen. Benifex’s mission is to build remarkable experiences that employees love. Today Benifex supports more than five million employees in over 3,000 organisations across more than 100 countries.

To help us on our quest to be the best, we need brilliant people on board and that’s where you come in.

• Growth:
  You'll own features end-to-end on a key product, with senior engineers alongside you to help you break down bigger problems and grow your scope.
• A clear path forward:
  We have published Engineering Career Pathways from Associate to Principal, so you know exactly what good looks like at your level and what the next step looks like.
• Technology: AI first by default, we're building our SDLC around AI Assisted engineering, and you'll be learning and shaping this alongside the rest of the team, not inheriting a finished playbook.
• Team:
  Work with a talented, experience group of engineers dedicated to building high quality product for our users.
• Sunday Times Best Place to Work 2025 and Best Large Tech Company to Work for 2025
• Work for a profitable, fast-growing market leader in the online reward and benefits space

Our Engineering department is building out a brand new team to focus on how we scale our platform and onboard customers, with this role being a key part of that team. This is an ideal opportunity to have real impact and learn from a super talented team of Senior Engineers working alongside you.

Please note we are unable to offer visa sponsorship and require to people to be based in the UK or Ireland for this position.

• £45,
• Tech setup of your choice (Mac Book Pro or equivalent, monitors, etc.)
• £/€800 annual learning budget, plus two hours per week as ‘Focus Fridays’.
• Flexible work – choose a working setup that works for you, our only ask is to see you once a month in the office and you must be based in the UK or Ireland.
• Full access to our comprehensive benefits package, including discounts from hundreds of high street brands, salary sacrifice schemes across Finance, Health, Tech, and more
• 25 days holiday plus your local bank holidays
• Your birthday off
• Two half day wellbeing days
• Healthcare cash plan to cover the costs of day-to-day healthcare
• Employee Assistance Plan 24/7 365 support
• Income Protection (75%) and life assurance (4x salary)
• Referral bonuses
• Enhanced parental leave package - 26 weeks fully paid maternity leave and 4 weeks fully paid paternity leave
• Work from Anywhere policy for 90 days
• Buy and Sell scheme for holidays
• £50 monthly allowance to spend on whatever takes your fancy, your very own Benifex card will be topped up at the start of each month!

• Design and build features for our Benefits product in C#.NET and .NET Core, breaking them down into tasks with support from your team.
• Take ownership of the quality of what you ship, testing your own work, fixing defects, learning from them, and improving how the team works.
• Write clear, well-structured code that follows our conventions, and give clear, actionable feedback on pull requests.
• Improve the quality and maintainability of the code you touch, applying good practice around accessibility, performance and security.
• Contribute to the stability of our systems.
• Strengthening alerts and runbooks, improving observability, and helping resolve production issues and incidents alongside a senior engineer.
• Work with Product, Design and Engineering colleagues to make sure what you build lands the right outcome, and…