> Markdown version of [/jobs/ext/3564503-lead-software-engineer](https://www.wearedevelopers.com/jobs/ext/3564503-lead-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). --- # Lead Software Engineer - **Company:** Digital Catapult - **Location:** Belfast, UK - **Experience:** Expert - **Salary:** £65,000.0 - £75,000.0 - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Artificial Intelligence, Microsoft Azure, Software Quality, Continuous Integration, Github, Python (Programming Language), TypeScript, Digital Twin, ReactJS, Build Management, Kubernetes, Front End Software Development, Docker - **Published:** October 3, 2026 - **Apply:** https://www.careerjet.co.uk/job/gbcbaeb622ef4e425f49bc960bde4ff318/eaa ## About the Role * Technical leadership on complex, multi-language software projects. * Strong backend engineering in TypeScript/JavaScript plus at least one other language such as Python or Rust. * Frontend development with a modern framework such as React. * CI/CD, containers and cloud deployment experience (for example GitHub Actions, Docker, Kubernetes). * Comfortable collaborating with engineers, designers, researchers and non-technical stakeholders. * Interest in using generative AI tooling well, and in emerging technologies such as digital twins. ## Description We are looking for a Lead Software Engineer to join our Belfast office and lead technical delivery across Digital Catapult's software projects, from digital twin environments for the UK Digital Twin Centre to the platforms behind our AI assurance testbed programmes. You will design and build software hands-on, set the technical direction on the projects you lead, mentor engineers and help grow our engineering presence in Belfast. WHAT YOU'LL DO (Duties) * Lead technical delivery on a variety of projects, from rapid prototypes to production platforms. * Design and build software end to end using TypeScript, Python, Docker, Kubernetes and infrastructure-as-code on Azure. * Set the standard for architecture, code quality, security and testing on the projects you lead. * Mentor engineers and help build our engineering team in Belfast. * Work with product, design, research and client stakeholders to turn requirements into working software. * Own the operation of the platforms you build, including monitoring, troubleshooting and performance.