Full Stack Developer (Principal / Senior)

Hays are now looking for a Full Stack Developer for one of our local retail clients:

Flexible Rate - Inside IR35

3 days a week onsite

Location is Bury

We're supporting a leading global footwear retailer as they build Marketplace and Conversion Optimisation squads to deliver improvements across their digital commerce platforms. We're looking for hands-on engineers who combine strong full stack technical expertise with product thinking, software craftsmanship and a passion for building customer-facing solutions.

What you'll be doing

Design, build and deploy scalable cloud-native applications across marketplace and ecommerce platforms

Develop customer-facing features that improve conversion, customer experience and commercial outcomes

Take features from discovery through to production

Lead technical delivery through hands-on engineering and coding

Build and maintain REST APIs, microservices and modern web applications

Drive code quality, software craftsmanship and engineering best practices

Mentor engineers through pairing, code reviews and day-to-day delivery

Embed automated testing, security and quality throughout the development lifecycle

Improve CI/CD pipelines, deployment processes and developer experience

Design scalable, maintainable solutions and reduce technical debt

Drive automation and continuous improvement across engineering teams

Utilise AI-assisted engineering tools to improve productivity, code quality and troubleshooting

What we're looking for

Strong commercial full stack software engineering experience

React and/or Next.js experience

Node.js and TypeScript experience

AWS cloud-native development experience

REST APIs and microservices architecture

CI/CD and modern software delivery practices

Automated testing experience

Experience delivering cloud-native digital products within Agile teams

Strong understanding of modern engineering, DevOps and software development best practices

Experience mentoring and supporting other engineers through hands-on delivery

Ability to balance rapid delivery with long-term engineering quality

Nice to have

CommerceTools or similar composable commerce platforms

Terraform or Infrastructure as Code

GitHub Actions

Docker and Kubernetes

Event-driven architecture

Monorepo environments

Observability platforms

Feature flag frameworks

AI development tools such as GitHub Copilot, Cursor, Claude Code or Gemini Code Assist

If you are able to commute to Manchester/Bury 3 times a week and are interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or send a copy of your CV to

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