We have an exciting opportunity for a Frontend Developer to join our Web Team on a permanent basis, based in Darlington (hybrid working).
Who we areRailpen is responsible for the safekeeping and investment of around £34 billion in assets and the administration of several pension schemes, including the Railways Pension Scheme—one of the UK’s largest and longest‑established pension funds.
Our heritage of looking after the pension needs of the rail industry and its employees gives us our name and our unique outlook on how we serve our members. We take a holistic approach, focusing on how we support members today and how we can positively impact the communities and the world they will retire into.
To learn more about Railpen, including our values, culture and purpose, visit our LinkedIn Life page.
The roleWe are looking for a Frontend Developer to help design, build, and optimise intuitive, high‑performance user interfaces across our digital products. Your work will directly enhance how our members self‑serve and manage their pension accounts, ensuring a seamless, accessible and user‑focused experience.
In this role, you will work closely with designers, backend developers and product owners to deliver new features and enhancements. You will develop responsive and accessible interfaces, write clean and secure code, and contribute throughout the delivery lifecycle—from development and testing through to deployment and BAU improvements. You will also participate in code reviews, support strategic technical decisions, and ensure our applications meet modern standards for usability, security, and performance.
This role is not eligible for visa sponsorship. Applicants must have the legal right to work in the UK.
The personIn addition, you will bring a strong understanding of modern Microsoft aligned development practices, including experience with Microsoft Visual Studio, C#, the .NET framework, and the MVC architectural pattern. You will be comfortable working within a Microsoft centric development environment, using Visual Studio to build and debug applications, writing clean and maintainable C# code, and understanding how frontend components interact with .NET based backend services. Familiarity with MVC principles such as separating concerns, working with controllers, views, and models, and structuring applications for scalability and maintainability will be highly valuable as part of our wider engineering ecosystem.
You will bring an understanding of responsive design, cross‑browser compatibility, and secure development practices, along with the ability to debug, troubleshoot and optimise complex interfaces. You will also have experience working with content management systems (CMS platforms), enabling you to build, update and maintain content‑driven digital experiences in a structured, scalable way. Experience with agile delivery, user‑centred design principles, and creating clear documentation is important.
You will thrive in a collaborative, cross‑functional team environment, be an effective communicator, able to explain technical concepts in a clear, accessible way, and comfortable presenting new features to stakeholders. Attention to detail, problem‑solving capability and a passion for creating exceptional user experiences are essential.
Our values of integrity, community and alignment guide how we work. You will actively demonstrate these values—helping create a safe environment, putting community needs above ego, and aligning decisions to the best interests of our members.
What we can offer youRewarding youA competitive salary
28 days annual leave plus bank holidays
Generous annual bonus plan
Membership of the Railways Pension Scheme (Defined Benefit)
4x Life Assurance cover
Employee assistance programme
Health cash plan
Eye care vouchers
Flu vaccination
Hybrid and flexible working
12 months full‑pay maternity leave and 6 months full‑pay paternity leave
Buy and sell holidays
Give as you earn scheme
Paid volunteering days
Flexible half‑day leave
Electric vehicle leasing
Cycle to work scheme
Please apply via the apply button or visit our Careers Page by 14th April 2026
Railpen is committed to creating an inclusive and diverse environment. We value diversity and welcome people from all backgrounds and walks of life.
Skills Required
- Experience in frontend development
- Proficiency in HTML5, CSS3, JavaScript
- Experience with modern UI frameworks like Vue
- Experience integrating with backend services and RESTful APIs
- Understanding of responsive design and secure development practices
- Experience with agile delivery
What We Do
The Railways Pension Scheme is one of the UK’s largest and longest established pension funds. Railpen is responsible for the safekeeping and investment of around £34 billion on behalf of the scheme’s 350,000 members who are connected to the railway industry. Railpen's purpose is to secure our members' future. To achieve this we invest the scheme’s assets to generate strong returns over the long term. Our members and their employers trust us with this very significant responsibility. We are proud of this responsibility, take it very seriously, and are committed to, and passionate about, improving their future lives. Generating the required returns is challenging. To be successful we must constantly strive to be considered a world-class asset owner by our stakeholders, with a proven track record of adding value for our members. This means we have to have excellent people, doing exemplary work, in every part of our business. We use the size of our assets to invest wisely and influentially. Our convictions and a clear set of investment beliefs guide us through complex and changing markets. We’re not afraid to think innovatively or act boldly in the best interests of the members we are proud to serve
