Senior Golang Engineer

Salary: £45,000 - 83,000 per year

Requirements:

• Expert level experience with Golang
• Enthusiastic about delivery and experience working in a fast-paced environment
• Ability to adapt to new technologies quickly and understand the stakes in doing this
• Experience in designing and managing large, scalable, high throughput, and highly available systems
• Experience with AWS and its basic best-practice architectures
• Strong understanding and appreciation for software design and architecture
• Strong experience with microservice-based infrastructures
• Solid understanding of HTTP and GRPC
• Desire to work on an exciting product suite, within a fast scaling technical business
• Excellent practical knowledge of commonly used patterns in Golang
• Experience with Continuous Integration and Deployment workflows
• Excellent communication skills, ability to interact optimally with multidisciplinary teams

Responsibilities:

• Drive and support our software and infrastructure engineers working on proprietary algorithms
• Uphold high standards for our uptime and latency requirements while not sacrificing veracity of API responses
• Work with data scientists to make modifications to the platform and algorithms in order to achieve even better results
• Assist in hiring and developing like-minded engineers on the team
• Participate towards maintaining the teams cohesion and healthiness
• Handle our incident response and post-incident investigation processes; participate in on-call rotations
• Make difficult choices in planning for the long term vision of our infrastructure and its quality while not overengineering
• Maintain high quality standards and best practices for code, infrastructure and documentation
• Support the creation and maintenance of technical documentation
• Contribute to designing, developing, and delivering new features for our products

Technologies:

• API
• AWS
• Golang
• HTTP
• Support
• gRPC
• Cloud
• Machine Learning

More:

Were Checkout.com. We power digital payments for companies like eBay, Spotify, Klarna, Uber, and Sony, enabling over 10 billion transactions each year for more than one billion global shoppers. Our platform helps ambitious businesses deliver effortless digital experiences at scale, and were shaping the future of fintech from our London HQ and 20 offices across six continents. This role sits in our Payment Performance team, where we use ML/RL and manual knowledge to improve payment success rates through real-time routing algorithms. We offer a hybrid working model with three days per week in the office, real ownership, fewer blockers, and meaningful work from day one. We value high performers, collaboration, and growth, and we want our people to bring their whole selves to work.

last updated 35 week of 2026