IT & Software

Mid-level Golang Engineer

Checkout.com

London · Greater London · United Kingdom

Overview

In this role within the Payment Performance team, you craft and optimize real-time payment routing using Go, ML, and live data to boost success rates and revenue for merchants. You’ll collaborate with engineers, data scientists, and incident responders to maintain ultra-low latency and high reliability at scale. The position combines hands-on coding with system design and documentation to advance a high-performance payments platform. This is a fast-paced, impact-driven opportunity at a global fintech leader.

Responsibilities
  • Support and guide software and infrastructure engineers working on proprietary routing algorithms
  • Maintain uptime and latency targets without compromising API response accuracy
  • Collaborate with data scientists to improve platform algorithms and outcomes
  • Contribute to hiring and developing engineers on the team
  • Maintain team cohesion and health through proactive communication
  • Participate in incident response, post-incident reviews, and on-call rotations
  • Make long-term infrastructure planning decisions balancing quality and simplicity
  • Uphold high-quality coding, infrastructure, and documentation standards
  • Create and maintain technical documentation
  • Contribute to designing, developing, and delivering new product features
Key requirements
  • Expert level experience with Golang
  • Fast-paced delivery mindset
  • Ability to adapt to new technologies quickly
  • Experience in designing and managing large, scalable, high-throughput, highly available systems
  • Experience with AWS and its basic best-practice architectures
  • Strong understanding of software design and architecture
  • Experience with microservice-based infrastructures
  • Solid understanding of HTTP and GRPC
  • Desire to work on an exciting product suite in a fast-scaling business
  • Excellent practical knowledge of common Golang patterns
  • Experience with CI/CD workflows
  • Excellent communication skills and ability to interact with multidisciplinary teams
  • Adaptability
  • Strong communication
  • Collaborative mindset
  • Golang
  • AWS
  • microservices

Reference: WJ-747_30142850

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