Job Description

We are looking for a Principal Full-Stack Engineer to take technical ownership across backend and frontend development, shaping high-quality, scalable solutions and setting engineering standards for the team. This role combines hands-on delivery with technical leadership, mentoring, and close collaboration with product and platform teams.

You will work across modern backend services built in Kotlin, rich frontend applications using React and with TypeScript, and cloud-native infrastructure on Azure or AWS.

This is an initial 6 month contract (outside iR35) that requires you onsite in London Paddington 3 days a week.

Key Responsibilities

  • Lead the design and development of full-stack solutions, balancing backend robustness with high-quality user experiences
  • Build and maintain backend services using Kotlin, following clean architecture and best practices
  • Develop modern, performant frontends using React, , an...

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