Senior Software Engineer

The Senior Software Engineer will be integral to enhancing the company's data platforms, working primarily on backend systems with a focus on TypeScript, Node.js, and AWS. The role provides an opportunity to work on complex data problems, improve system architecture, and mentor fellow engineers within a small, energetic team., Build and improve core data systems and APIs Manage data pipelines involving high-volume data transformations Own features end-to-end, including API development, database management, and internal tools Collaborate closely with the engineering team to enhance system performance and scalability Contribute to the team's technical growth and share knowledge through mentoring and code reviews

Strong TypeScript engineering experience with real backend expertise Experience with data pipelines and high-volume data processing (e.g., S3, transformations) Proficiency in building and maintaining APIs and working with databases such as MySQL, MongoDB, or PostgreSQL Hands-on experience with Node.js, Express, and SQL/NoSQL databases Familiarity with cloud services, particularly AWS, including S3 and Kubernetes Experience working within startup or small team environments, comfortable with fast-paced tradeoffs Ability to mentor and review code proactively Solid understanding of database design and API development, Right to work in the UK Experience in a similar senior engineering role On-site work at our client's London (Paddington) location, with a hybrid working environment Ability to start on 17/04/##### Demonstrated experience with JS Node API, MongoDB, Postgres, SQL, and Typescript

Nice to Have

Experience with Kubernetes and Elasticsearch

Our client is a fast-growing, VC-backed data platform that helps global brands understand and monetise user behavior within next-generation digital environments. The company fosters a dynamic, innovative culture with a focus on ownership and impactful work. This role involves working as a backend-leaning fullstack engineer (80/20 split), building and enhancing core data systems and APIs. The position requires collaboration with data pipelines, end-to-end feature ownership, and contributions to the technical growth of a developing engineering team. It offers a fast-paced environment with significant scope for influence and career development.