Lead Back-End Software Developer

Lead Backend Software Developer (Contract)London,

Outside IR35

£500-£600 per day

This is an exciting opportunity to join a fast-moving engineering function at a pivotal moment of technical uplift. They are investing heavily in strengthening their core platforms and commercial data systems, creating a strong mandate for senior engineers to step in, lead, and make an immediate impact.

The CompanyThey are a growing digital gaming organisation operating across multiple markets, currently modernising their backend ecosystem. With distributed teams across the UK and Europe, they are building scalable platforms that support a variety of customer-facing and internal products. Engineering quality, strong technical leadership, and delivery excellence are central to their transformation. Contractors join at a time when technical ownership is expanding in-house, creating real scope to shape systems and standards.

The Role and Deliverables: Lead backend development across a complex CMS and core data systems. Own key architectural decisions and unblock teams through strong technical leadership. Enhance the NextGen CMS, working on logic driven functionality and system evolution. Expand and support the Master Data platform that underpins wider services. Mentor engineers and drive engineering best practice across the backend team. Accelerate delivery by improving patterns, processes, and overall code quality.

The Role and Deliverables: Lead development within the Commercial Data Manager, delivering new functionality and scaling existing services. Take full ownership of the HubSpot ecosystem, replacing agency support and bringing it in-house. Implement new fields, features and data flows for commercial stakeholders. Maintain and evolve integrations across multiple services and data systems. Partner with architecture and engineering leadership on system design and improvements. (Nice to have) Drive smooth, reliable operation of CDM and HubSpot through clear technical ownership.

Your Skills and Experience Strong capability in Node.js, JavaScript and TypeScript within complex backend environments. Confident designing scalable systems and making architectural decisions. Effective collaborator with product, delivery and commercial teams. Experience working in integration-heavy or data-rich environments. Proven leadership mindset with the ability to mentor, influence and drive standards. Practical cloud experience, ideally AWS, with good awareness of DevOps concepts.

How to ApplyIf you are a senior backend contractor ready to take technical ownership and deliver meaningful impact, please apply with your CV.