Senior Software Engineer (Golang)

Location: Boston, MA | Hybrid, 3 days per week in our Boston office Build the technology behind elite sporting performance. At Catapult, we are building the future of sports performance technology, with a mission to Unleash the Potential of every athlete and team on earth. Since 2006, our technology has helped shape the world of sports performance software, science and data. Today, our solutions are used by more than 5,000 teams around the world, including organisations across the NFL, NBA, NHL, MLS, EPL, AFL, NRL, NCAA and many more. Our technology brings together wearable data, digital video and athlete information to help coaches, sports scientists, performance staff and athletes understand what is happening, make better decisions and improve performance. We are looking for a Senior Software Engineer with strong Golang experience to join our engineering team in Boston and help build the next generation of our cloud platform. This is a hands-on engineering role where you will work with Golang, distributed systems, AWS, APIs and data to build scalable services used by some of the world's leading sporting organisations. If you enjoy solving complex engineering problems, taking ownership of systems and seeing your work have a real impact, this is an opportunity to do that while working alongside a great engineering team in Boston. The opportunity You will play a key role in planning, designing, building and testing features for our next-generation cloud platform. Our platform combines digital video, wearable data and athlete information to provide insights and analytics to coaches, support staff, sports scientists and athletes. The systems you build will help customers make informed decisions about athlete health, readiness and performance. Golang is essential to this role. You will design, build and maintain production-grade Go services as part of a growing backend platform. You will have ownership across the development lifecycle, from understanding the problem and contributing to technical design through to implementation, testing, deployment and ongoing improvement. You will work on a range of engineering challenges across distributed services, APIs, cloud infrastructure, data platforms, authentication, authorisation, entitlements and licensing. We are looking for someone who enjoys getting into the detail, is comfortable making technical decisions and wants to have a meaningful influence on both the software we build and how we build it. What you'll do Design, build and maintain scalable, reliable and maintainable services in Golang Contribute to the architecture and technical direction of our cloud platform Take ownership of services and features from planning and design through to production Solve complex engineering problems across distributed systems, APIs, data and cloud infrastructure Help drive code quality, engineering standards and best practices across the development lifecycle Participate in technical design discussions, architecture reviews and code reviews Contribute to our test strategy and write high-quality automated tests Improve automation and engineering processes to support reliable and efficient delivery Work closely with engineers and other teams to understand customer needs and develop effective technical solutions Identify opportunities to improve our systems, processes and developer productivity Share knowledge and contribute to the development of the wider engineering team Take ownership of problems and outcomes while working collaboratively with colleagues across our global organisation What you'll bring Essential Strong professional experience with Golang 5+ years' recent experience delivering multiple scalable services into production Experience designing, building and operating production-grade backend services Experience working with cloud-based and distributed systems Experience with AWS, ideally including ECS, EC2, Lambda, SNS and SQS Working knowledge of containerisation Experience with CI/CD automation and modern software delivery practices Working knowledge of REST, GraphQL and/or gRPC Experience working with databases such as Postgres and/or MongoDB A strong understanding of software engineering fundamentals, including testing, reliability, maintainability and code quality A willingness to take ownership, contribute ideas and continuously improve It would be great if you also have Experience working with high-volume data platforms or distributed data systems Experience with event-driven architectures and messaging systems Experience with authentication, authorisation, identity or entitlement systems Experience building systems that operate across cloud and edge environments Experience working with video, telemetry, sensor or time-series data Experience in a high-growth product or SaaS environment An interest in sports, performance technology or data You do not need to be a sports expert to be successful at Catapult. We are looking for great engineers who are interested in the problems we are solving. What success looks like In 6 months You will have a strong understanding of our platform, architecture and engineering practices and will be confidently owning one or more Go microservices. You will be shipping production changes across our backend services and contributing to areas such as our unified entitlement and licensing system, distributed data platform and authentication systems. You will also have built strong relationships with the engineering team in Boston and colleagues across our global engineering organisation. In 12 months You will be leading the architectural design of a significant subsystem, taking a problem from initial design through to production across our Go service estate. You will be contributing to how we evolve our federation patterns, offline-first edge arch