Principal Software Engineer in Belfast

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.

Experience and skills we need:

• 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 practices.
• 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:

• 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.

What you’ll be doing:

• 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.
• Oversee the technical delivery roadmap and proactively identify blockers or challenges to successful delivery in processes, tooling, deployment pipelines, or similar. Work 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 practices or technologies to ensure your team delivers 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.

What’s on offer:

• Feel safe and secure whatever life brings, with health insurance (including access to a digital doctor), life assurance and income protection.
• Enjoy both today and tomorrow with employee discount schemes, annual bonuses and a competitive pension.
• Protect your wellbeing with flexible working and a real work-life balance.
• Grow yourself, your career and reputation through continuous learning, promotion opportunities and our generous recognition programme.

About Us:

Liberty IT is the tech wing of Liberty Mutual Insurance. Bringing peace of mind to all aspects of customer’s lives, every day. We’re an ideas company. Always. We thrive on engineering excellence and surpass with technical mastery. We build beautifully architected cloud solutions and reliably run high stability systems. We work alongside the best in the business and learn from the finest minds.

Great Place to Work in UK & Ireland 2025, Best Workplaces for Women (UK) 2025, Top 5 Best Tech Workplace, Centre of Excellence in Wellbeing.

Fair employment and equal opportunities. Liberty IT is an equal opportunity employer, committed to inclusion and diversity. If you have a disability, accommodations are available on request when taking part in all aspects of the recruitment, assessment, and selection process.

If you’re ready to fly in your career, apply now.