Sr Developer / Lead Developer

About the job Sr Developer / Lead Developer Hybrid - Reading, United Kingdom (Tue, Wed, Thur in office) Contract until 28th Feb 2026 | Rate: Negotiable We are looking for a versatile lead engineer who will work directly with our client's billing application team to enhance their saas offering for their customers. You'll need to display leadership and self-motivation qualities and be enthused to take on new problems across various languages and platforms. You will contribute to the tooling, platforms and applications produced by the team to support the client's products and engineers alike. You will be contributing to: • The client's up and Billing of SaaS services • Security and Architecture standards, designs and foundational guidance for applications and infrastructure that are being developed on client's Cloud platform What You'll Be Doing: • Designing, developing, testing, deploying, maintaining and improving software • Designing and building cloud-first software infrastructure and solutions • Working with and developing for major cloud platforms such as GCP • Building highly maintainable, easy-to-understand code in the cloud, including web services, web, iOS, and Android • Being proactive - willing to work on any problem, and willing to find solutions when they fall outside your area of direct expertise • Working as a member of a team and pitching in to ensure the team succeeds with its commitments • Working with multiple internal engineering teams to understand and respond to their needs around the platforms and applications maintained by the hiring team. • Keeping a level head in a pressured environment • Working with geographically dispersed teams Requirements: • Skills: Node, UI Development (React/Remix, Angular), GCP • Experience developing software services and an understanding of design for scalability, performance and reliability • Development experience designing, developing and maintaining REST-based interfaces and their clients • Familiarity with cloud computing. SaaS and PaaS • Strong interest, and the ability to, learn other coding languages, databases, platforms and tools as needed • Ability to take a project from scoping requirements through actual launch of the project • Experience with network programming, websockets, Netty framework • Working in an agile iterations and good understanding of scrum