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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Software Engineer - **Company:** Sync NI - **Location:** UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Agile Methodology, Encodings, DevOps, PostgreSQL, Node.Js, Systems Development Life Cycle, Search Technologies, Software Engineering, Software Systems, TypeScript, Tailwind, ReactJS, Delivery Pipeline, Generative AI, Backend, Webpack, Front End Software Development, Programming Languages - **Published:** July 24, 2026 - **Apply:** https://careerslit-libertymutual.icims.com/jobs/76326/principal-software-engineer/job ## About the Role + A minimum of five years, software development experience in a commercial environment. + Experience in providing technical leadership to software engineers in the delivery of a feature set or enhancements of enterprise scale. + Experience in working with Typescript, Node and React + In-depth knowledge and experience in agile software delivery and of DevOps as part of the SDLC. + Experience in partnering closely with Product Owners and customer stakeholders to deliver software solutions. + Extensive coaching and mentoring experience, including implementing engineering excellence best practises. + Experience in identifying and implementing continuous improvement initiatives in the SDLC. + Experience in technical communication with peers and non-technical stakeholders. + Knowledge of and exposure to the Well-Architected Framework. Experience and skills we'd love: We've included some further skills and experience that would be great. However, don't rule yourself out if you haven't had the opportunity to develop these yet, we have a learning culture at Liberty IT so we will support your career growth with us. + Backend-TypeScript, Node,Hono and PostgresSQL + Frontend-Typescript, React, Vite,Tailwind CSS and LMDS + Experience in working with the following technologies:Cloudforge, Generative AI, Embedding / Semantic search + Knowledge of and exposure to coaching frameworks ## Description * Work with and lead talented people to achieve wonderful things at Liberty IT; for this is where you'll find complex challenges, where you'll be given the scope and the support to go further, dig deeper and fly higher. You'll bring the expertise. We'll provide the support and autonomy. Sound good? Who you'll be working with: Join as a Principal Software Engineer to work on devising and scaling innovation to enable program management across Liberty mutual including creating new experiences for AI usage. You will also have the opportunity to solve some of the biggest strategic questions in technology for our leaders using data to unlock the answers., + Lead an agile team of Software Engineers to achieve their goals, and, with support from the Leadership and Support team, define the team's path to get there. Coach and mentor team members utilising suitable coaching framework/s. + Be part of a team who are working to solve complex business problems by delivering high-quality software that provides an outstanding experience for our customers. + Own complex use cases or tasks. Design and code solutions working with the most suitable programming language, technologies, tools and frameworks. + Contribute to the overall architecture through designing, documenting and implementing high quality, secure solutions and enhancements that satisfy the customers problems or requirements. + Facilitate engineering excellence across the team through coaching and mentoring on best practices, defining and implementing team coding and testing standards, and creating accountability among all team members in relation to security and testing practices. + Overviews the technical delivery roadmap and proactively identifying blockers or challenges to successful delivery in processes, tooling, deployment pipelines, or similar. Works with the team to resolve identified challenges. + Regularly partner with the Product Owners to own backlog prioritisation, set delivery goals and manage dependencies across stakeholders, customers and integration partners. + Promote a product focused mindset with your team and stakeholders. + Encourage team wide experimentation with new practices or technology. Introduce suitable new practises or technologies to ensure your team deliver the best possible solution in line with your customer's needs and required timeframe. + Grow your knowledge of architecture and design best practices. + Supported by the leaders across Liberty IT, seek opportunities to share and celebrate what you and your team have achieved through internal tech talks, blogging and external ## Related Videos - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Micro Frontends with Module Federation: Why and How?](https://www.wearedevelopers.com/videos/165-micro-frontends-with-module-federation-why-and-how) - [Stop using Node.js like in 2020! 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