Lead Back-End Software Developer

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 Company They 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.

• 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., * software
• developer
• backend
• node.js
• software engineer
• node
• typescript
• engineer software developer