The Gym Group

full-stack developer in digital platforms

In short

A technical leadership role at The Gym Group leading full-stack development of digital platforms across multiple value streams, setting technical direction for a modern Azure-based stack, and mentoring an engineering team. Requires 5+ years of commercial software development experience including 2+ years in a lead or senior technical role, hands-on expertise in React/Next.js and .NET Core, and proven Azure/IaC (Terraform or Pulumi) experience. Hybrid work based in London.

About the Role
This is a technical leadership role with real influence over how The Gym Group builds and evolves its digital platforms at scale. You will lead full-stack development across multiple value streams, mentor a talented engineering team, and set the technical direction for a modern Azure-based stack - all within a business that genuinely invests in its people and is on an exciting digital growth journey.
Responsibilities
•Leading full-stack development across value streams, owning technical quality, delivery outcomes, and team capability growth
•Setting technical direction across the stack - making pragmatic trade-offs on things like SSR versus client rendering, API design, and architecture patterns with maintainability in mind
•Contributing to low-level solution design alongside the Architecture team, helping turn complex technical requirements into clear, deliverable plans
•Mentoring developers, building a strong team culture, and actively supporting the professional growth of engineers around you
•Defining and governing the use of AI-assisted development tools across the team, including setting guardrails and identifying genuinely high-leverage opportunities
•Designing and managing Azure cloud infrastructure using Kubernetes, Service Bus, APIM, and Key Vault, with IaC via Terraform or Pulumi
•Driving adoption of software engineering best practices including TDD, SOLID principles, event-driven architecture, and DevSecOps
•Collaborating closely with Product, UI/UX, Architecture, and third-party engineering partners to deliver high-quality digital experiences
Requirements
•Five or more years of commercial software development experience, including at least two years in a lead or senior technical role
•Hands-on full-stack expertise across React/Next.js and .NET Core
•Proven experience with Azure cloud services and Infrastructure as Code (Terraform or Pulumi)
•Familiarity with CI/CD tooling (Azure DevOps preferred) and containerisation with Docker
•Strong grounding in software engineering best practices - TDD, BDD, SOLID, and architectural patterns such as event-driven and serverless
•Ability to lead through influence and communicate clearly with both technical and non-technical audiences
Conditions
No conditions specified in the posting.

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