About this Senior Full Stack Developer role at Keylane

Keylane · Onsite · London, England, United Kingdom

We are looking for a Full Stack Developer to help us build and improve SiteView using React, Java and AWS. If you enjoy working across front-end and back-end development, solving technical challenges and collaborating with an experienced team, we’d like to meet you!

Key about your role

As a Full Stack Developer at Keylane UK, you help develop SiteView, our digital claims platform. SiteView enables insurers to automate workflows, manage digital site visits and connect customers, claims teams and suppliers throughout the claims process. Your work helps make that experience easier to manage and follow. Keylane

You contribute throughout the development lifecycle, from prototyping and developing new features to testing and deployment. On the front end, you work with JavaScript, React, Redux Saga, HTML and CSS. On the back end, you use Java/J2EE, Maven, jOOQ and MySQL, with Docker and AWS forming part of the wider development environment.

Alongside building new functionality, you improve what is already there. You investigate application issues, resolve bugs and identify performance bottlenecks. You follow sound development practices and take responsibility for writing code that is secure, maintainable and reliable.

You work closely with fellow developers and colleagues across the business to understand requirements and translate them into practical solutions. Whether you are exploring a new feature or troubleshooting an existing one, you combine technical curiosity with attention to detail.

Key about your team

You join a small team of experienced developers working on SiteView. Together, you build secure, scalable SaaS software for enterprise customers.

Collaboration is an important part of the role. You discuss technical challenges, share knowledge and work with colleagues from other departments. You are comfortable progressing your own work independently, while knowing when to involve others and work through a problem together.

About Keylane Property & Casualty

Keylane develops SaaS platforms that help insurers modernise their operations and improve the service they provide to customers. Our Property & Casualty portfolio includes Axon and SiteView, bringing together core insurance software and digital claims capabilities. SiteView works alongside existing core systems, helping insurers improve their claims processes without replacing their entire technology landscape.

Requirements

You have at least five years of relevant development experience, working across the front end and back end with this technology stack or a comparable one;
You have hands-on experience with Java/J2EE, JavaScript, React and MySQL, alongside familiarity with Maven and jOOQ;
You have experience using Docker and a solid understanding of networking;
You enjoy investigating problems and developing sustainable solutions. You work carefully, take initiative and pay attention to the quality of what you deliver;
You communicate clearly, build good working relationships and collaborate effectively with people from different backgrounds. You are comfortable working independently and learning new tools and technologies;
You have a degree in computer science, mathematics or another technical subject, or equivalent practical experience or qualifications.

You must have the right to work in the UK.

It’s a plus if you have experience with AWS services such as EC2, RDS, SES or SWF; React Native; Jenkins; Python; or Bash. Familiarity with GitHub, IntelliJ and macOS is also useful.

Using AI

You have practical experience using AI-assisted development tools, such as Claude, OpenAI tools, GitHub Copilot or Cursor, in professional work or your own projects. You can explain how you have applied them to activities such as understanding code, developing features, writing tests or troubleshooting;
You understand where these tools can support the development process and where human judgement is essential. You provide clear requirements and context, and recognise when an output needs further investigation;
You critically assess, test and debug AI-generated code and suggestions. You remain responsible for the correctness, security and maintainability of everything you deliver.

Benefits

Starting with a gross annual salary between 46.000 and 66.000 GBP for a senior candidate based on fulltime employment
Income Protection
Life Insurance - 4x annual salary
8% Employer Pension Contribution
25 holiday days + 8 inclusion days (Bank Holidays)
Company Bonus Scheme
Flexible Working
Edinburgh or London | Hybrid / remote working

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About Keylane

Are you ready for a Keylane career? At Keylane, we are transforming the insurance and pensions industry with innovative SaaS solutions. But that's not all – at Keylane, we believe that work should be more than just a job. It's about leveraging your unique self, developing your potential through our acclaimed Keylane Academy, and having fun both in and out of the office. Let us show you how we do things differently!

With offices in the Netherlands, Germany, Norway and Denmark, Keylane plays a very important role in the European insurance and pension industry, providing highly configurable and customer-centric SaaS platforms. By optimizing business processes, we empower our customers to be future-ready and agile, driving innovation across the sector.

What sets us apart?
That is our people. At Keylane, we foster a culture where everyone can be themselves, develop themselves and connect with each other. We are a diverse community of individuals, united by our commitment to delivering exceptional results for our customers.

At Keylane, we stand for equality and inclusivity. We believe that everyone should be treated as equals, and our 'flat hierarchy' approach to management reflects this core value. We embrace diversity as a driving force, knowing that our differences make us stronger. Together, we build a workplace founded on trust, openness, and knowledge sharing – a place where every voice is heard and valued.

By the way, did you already know that we have exchanged the fixed national holidays for inclusion days? This means it is no longer mandatory to take days off on national holidays. These days can instead be taken whenever a Keylaner wishes to take them.

Keylane Academy: our personal development and fun factory
But it doesn't stop there. We prioritize your growth and personal development, providing you with ample opportunities to excel, not only in your career but also as an individual. Welcome to the Keylane Academy, where learning is infused with a fun factor. Discover a range of services designed to unleash your potential:

Learning Journeys: We map out your career path and development opportunities, ensuring you always know the exciting steps that lie ahead.
Expert Talks: Immerse yourself in captivating learning sessions, where industry experts share their knowledge and insights on cutting-edge topics.

Playgrounds: welcome the fun factory! Engage with your colleagues, forge connections, and create unforgettable memories through our amusing events like sport events, game board nights or the weekly after work drinks

At Keylane, your journey with us is about more than just a job – it's about growth, fulfilment, and a sense of belonging. Join us in shaping the future of the insurance and pension industry while enjoying an enriching and vibrant workplace.

Ready to embark on this special adventure? Visit our careers page to explore our open positions and be a part of something special.

Unlock your tomorrow at Keylane | Keylane Careers

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