> Markdown version of [/jobs/ext/90429-senior-software-engineer](https://www.wearedevelopers.com/jobs/ext/90429-senior-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer - **Company:** Vc-backed - **Location:** Sunbury-on-Thames, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Amazon S3, Code Review, Databases, Database Design, Elasticsearch, PostgreSQL, MongoDB, MySQL, Node.Js, NoSQL, Cloud Services, SQL Databases, Systems Architecture, TypeScript, Data Processing, Backend, Kubernetes, Data Management, Api Design, Data Pipelines - **Published:** May 31, 2026 - **Apply:** https://www.apply4u.co.uk/jobs/x/37798477/ ## About the Role 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 ## Description 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 ## Related Videos - [40 Minutes to Build a Serverless COVID-19 REST and GraphQL APIs](https://www.wearedevelopers.com/videos/208-40-minutes-to-build-a-serverless-covid-19-rest-and-graphql-apis) - [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling) - [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [NoSQL Data Modeling for Front-end Developers](https://www.wearedevelopers.com/videos/297-nosql-data-modeling-for-front-end-developers) - [Tomorrow's cloud data platforms - fully managed database-as-a-service (DBaaS)](https://www.wearedevelopers.com/videos/254-tomorrow-s-cloud-data-platforms-fully-managed-database-as-a-service-dbaas) ## Related Articles - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk) - [Software Engineer Salary in The UK](https://www.wearedevelopers.com/magazine/231-software-engineer-salary-in-the-uk)