Senior Back End Engineer | £100K | 3 Days Per Week (LDN) | UK's Fastest Growing Sports Platform

As a Senior Backend Engineer with strong TypeScript expertise, you'll be responsible for designing, building, and evolving the backend systems that power their fan-focused platform.

You'll work closely with the founding team to architect reliable, scalable services and APIs, making key technical decisions as we grow from an early-stage product into a mature platform.

You'll take ownership of core backend domains, influence engineering standards, and help ensure the platform is secure, performant, and built to scale.

Responsibilities

• Designing, developing, and maintaining backend services and APIs using TypeScript.
• Taking ownership of backend architecture, data models, and service boundaries.
• Making pragmatic decisions on when to leverage existing tools and services versus building custom solutions.
• Working closely with frontend and mobile engineers to design clean, well-documented APIs.
• Collaborating with product owners to ensure the product vision is accurately reflected in the technical roadmap and backlog.
• Considering performance, scalability, and reliability in every sprint.
• Ensuring best practices around security, authentication, authorization, and data protection.
• Establishing and promoting backend coding standards, tooling, and development practices.
• Contributing to technical strategy discussions and helping shape long-term platform architecture.
• Proactively identifying technical risks and opportunities for improvement as the product scales.

• 5+ years of commercial software engineering experience, with a strong focus on backend development.
• Strong TypeScript expertise, ideally in a Node.js backend environment.
• Experience designing and building APIs (REST and/or GraphQL).
• Solid understanding of backend architecture patterns, data modelling, and distributed systems.
• Experience working with databases (SQL and/or NoSQL) and caching layers.
• Comfortable owning systems end-to-end: development, testing, deployment, and monitoring.
• Strong communicator who enjoys collaborating, sharing ideas, and giving and receiving feedback.
• Opinionated but pragmatic, you care about building the right thing, not just the clever thing.
• Experience working in early-stage or fast-moving product teams is a big plus.
• Passion for sports is welcome but not required, technical excellence comes first.