> Markdown version of [/jobs/ext/3307849-senior-software-engineer](https://www.wearedevelopers.com/jobs/ext/3307849-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:** NewDay - **Location:** London, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Agile Methodology, Microsoft Azure, Software Quality, Node.Js, E2e Testing, Systems Integration, TypeScript, Test-Driven Development (TDD), ReactJS, Playwright, Restful APIs - **Published:** September 8, 2026 - **Apply:** https://www.collegerecruiter.com/job/2840571726-senior-software-engineer ## About the Role * Proven React expertise with TypeScript to craft robust, scalable interfaces * Node.js for developing high-performance services and APIs * Solid track record in testing - from code quality and security to customer journeys and accessibility * Deep understanding of writing semantic, accessible, and modular front-end code that lasts * Skilled in integrating with services via RESTful APIs * Hands-on experience with agile software development methodologies * Familiarity with Azure cloud services and modern deployment patterns * Experience applying TDD (Test Driven Development) for rock-solid code * Practical skills with Playwright for automated end-to-end testing * Comfort working with monorepos using tools like Turborepo or Nx * Hands-on experience setting up and running CI/CD pipelines * Knowledge of Storybook, atomic design principles, and design language systems ## Related Videos - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [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) - [Stop using Node.js like in 2020! What changed and what you can do today with Node.js](https://www.wearedevelopers.com/videos/100011-stop-using-node-js-like-in-2020-what-changed-and-what-you-can-do-today-with-node-js) - [Do TypeScript without TypeScript](https://www.wearedevelopers.com/videos/327-do-typescript-without-typescript) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Stop Using Node.js Like It’s 2020! - Alfonso Graziano](https://www.wearedevelopers.com/videos/1863-stop-using-node-js-like-it-s-2020-alfonso-graziano) ## Related Articles - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [Dev Digest 133 - Back to Front](https://www.wearedevelopers.com/magazine/474-dev-digest-133-back-to-front) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 103 - Superb Owl Trafficking](https://www.wearedevelopers.com/magazine/388-dev-digest-103-superb-owl-trafficking)