Principle Software Engineer

Cardiff / Hybrid

Up to £85,000 + annual share scheme + excellent benefits

What You'll Do:

You'll provide hands-on technical leadership across squads, ensuring high standards in architecture, engineering quality, and delivery within a fast-paced, cloud- environment. Acting as a key technical advisor, you'll shape strategic initiatives, support delivery teams, and champion best practices in frontend and backend engineering.

With a focus on React and NestJS, micro frontends, and scalable DevOps tooling, you'll play a pivotal role in mentoring engineers, aligning technical decisions with business goals, and fostering a culture of continuous improvement.

What You'll Bring:

Strong experience in a Senior or Staff Engineer role across web and mobile platforms

Deep technical knowledge of React and NestJS, including state management and server-side rendering

Proven success designing and maintaining micro frontend architectures using module federation

Proficiency with cloud- development in GCP or Azure, including secure and scalable deployments

Strong command of modern CI/CD practices, test automation, and observability

Familiarity with infrastructure tooling such as Docker, Kubernetes, Helm, and Terraform

Broad testing expertise across unit, integration, end-to-end, and non-functional testing

Understanding of secure coding practices and web/mobile security principles

Experience mentoring engineers and leading by example to promote high-quality delivery

Desirable: familiarity with mobile development using Ionic Capacitor or Guidewire productsWhy You Should Apply:

You'll step into a role with real influence, joining a company recognised as a Great Place to Work and known for its inclusive, people-first culture. You'll enjoy flexible working, generous holidays (up to 38 days including bank holidays), and free shares each year. With a strong focus on personal growth and team collaboration, you'll be part of a forward-thinking engineering community that values innovation and leadership.

Ready to Apply?

Contact Dan Newton to find out more.

Please apply with a CV and a cover letter outlining why you're perfect for the role.

Know someone great for the job? We offer a referral scheme-just get in touch!

Note: We do our best to respond to every application, but due to volume, we can't always guarantee it. If you haven't heard back within 7 days, unfortunately, you haven't been successful this time. Keep an eye on our site for new opportunities