Back End Developer

Senior Backend Software Engineer | Hybrid in Mansfield (3 days p/w onsite)

We are working with a leading retail organisation that is transforming the industry through digital innovation and enhanced customer experiences. Operating across multiple brands within the sports, premium, and luxury sectors, our client has a significant global presence and continues to invest heavily in modern technology platforms.

This is a fantastic opportunity to join a high-performing, agile team working on a cutting-edge MACH-based platform (Microservices, API-first, Cloud-Native, Headless), powering 50+ websites and mobile applications, including some of the biggest names in retail.

The Opportunity

This is a senior individual contributor role offering the opportunity to shape backend architecture, influence engineering standards, and play a key role in delivering highly scalable, resilient systems.

You’ll work across critical services and integrations, owning key backend components that directly impact customer experience at scale.

Key Responsibilities

• Drive backend architecture decisions including service design, data modelling, and system integration
• Build and deliver scalable microservices using TypeScript and Node.js
• Design and maintain high-quality GraphQL and REST APIs
• Deliver integrations with external systems (headless CMS, e-commerce platforms, payment providers)
• Collaborate with Product, Frontend, and Platform teams from discovery through to delivery
• Translate business requirements into technical architecture, documentation, and implementation
• Provide technical leadership through mentoring, code reviews, and knowledge sharing
• Own critical systems, ensuring performance, reliability, and security at scale
• Champion best practices across code quality, testing, observability, and maintainability
• Contribute to and improve CI/CD pipelines, developer experience, and DevOps practices
• Stay up to date with emerging technologies and bring innovative ideas into the team

Required Experience

• Strong commercial experience as a Senior Backend Engineer in large-scale environments
• Expert knowledge of TypeScript and Node.js
• Proven experience designing and building microservices and distributed systems
• Strong experience with GraphQL and/or REST API design
• Experience working with both NoSQL and SQL databases
• Solid understanding of performance, scalability, and reliability patterns
• Experience across the full software development lifecycle including CI/CD and automation
• Experience mentoring engineers and contributing to team growth
• Strong communication skills with the ability to work cross-functionally

Desirable Skills

• Experience with MACH or composable commerce architectures
• Familiarity with Microsoft Azure or other cloud platforms
• Knowledge of Infrastructure as Code (e.g. Terraform)
• Experience with event-driven architecture and messaging systems
• Familiarity with containerisation (Docker, Kubernetes)
• A DevOps mindset with experience in CI/CD, monitoring, and observability tooling

Why Apply?

This is an opportunity to join a forward-thinking organisation at the forefront of retail technology, working on large-scale, high-impact digital platforms. You’ll be part of a team where backend engineering plays a critical role in shaping customer experience, with real ownership, modern tech, and the chance to influence how systems are built at scale.