Lead Full Stack Engineer

Lead / Staff Full-Stack Engineer (Individual Contributor Focus)
6-Month Contract | Outside IR35 | Paddington (3 days/week)

We are partnering with a prominent consumer platform undergoing a major digital transformation and seek a Lead / Staff Full-Stack Engineer to join as a hands‑on contributor with strong end‑to‑end ownership.

This role involves full‑stack development across backend and frontend, coupled with technical ownership of solutions, focusing on building scalable, high‑quality systems within a modern cloud‑native environment.

As a Lead / Staff Full‑Stack Engineer, you will design and deliver comprehensive solutions spanning backend services, frontend applications, and cloud infrastructure. You will work in a modern, collaborative environment prioritising performance, reliability, and user experience.

• Design and develop full‑stack solutions balancing backend robustness with exceptional user experiences
• Build and maintain backend services using Kotlin, adhering to clean architecture principles
• Create modern frontend applications using React, Next.js, and Type Script
• Own API design, integration, and lifecycle management (Apigee)
• Contribute to system design and make informed technical decisions
• Write clean, maintainable, and high‑quality code

• Design and operate cloud‑native solutions on Azure or AWS
• Work with containerised environments such as Docker and Kubernetes
• Contribute to CI/CD pipelines and modern delivery practises
• Implement observability across systems, including logging, metrics, tracing, and alerting

• Establish and uphold engineering standards and best practises
• Support colleagues through code reviews and technical guidance
• Collaborate closely with Product, Dev Ops, and Architecture teams
• Contribute to designing scalable, secure, and maintainable systems

• Proven experience as a Senior, Lead, or Staff Full‑Stack Engineer in hands‑on roles
• Strong backend development skills using Kotlin
• Solid frontend experience with React, Next.js, and Type Script
• Experience building and operating cloud‑based systems (Azure or AWS)
• Hands‑on experience with containerisation and distributed systems
• Strong knowledge of API management, preferably Apigee
• Deep understanding of observability and production system monitoring
• Experience delivering scalable, production‑grade systems
• Excellent communication skills with the ability to influence technical decisions

• Experience working in complex, distributed environments
• Familiarity with CI/CD and Dev Ops practises
• Experience modernising legacy platforms or systems

• Six‑month contract outside IR35 with potential extension
• Hybrid working: three days per week at Paddington
• Opportunity to contribute to large‑scale, high‑impact digital platforms
• Collaborative, engineering‑led culture with strong technical ownership

If you are a hands‑on full‑stack engineer passionate about building end‑to‑end systems and working across modern backend, frontend, and cloud technologies, we would love to hear from you.