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September 11, 2026

Senior Golang Developer

Senior • On-site

Warsaw, Poland

Quick Facts

  • Senior Golang Developer

Description

We are seeking a Senior Golang Developer to join a high-impact engineering initiative for a leading global financial services client. In this role, you will help modernize mission-critical infrastructure by replacing legacy platforms with a modern, Go-centric developer ecosystem. The platform covers the full software delivery lifecycle—from version control and build systems to automated QA, CI/CD pipelines, and observability. You will build high-performance microservices, custom developer tooling, DSL parsers, and deep IDE integrations (VSCode extensions) to elevate developer productivity across enterprise financial systems.

Responsibilities

  • Microservices & API Engineering: Design, build, and maintain production-grade Go microservices and robust APIs powering internal platform capabilities.

  • Custom Tooling & DSL Implementation: Develop custom developer tools, language parsers, and DSL automation engines to streamline legacy system modernization.

  • IDE & Platform Integration: Partner with tooling teams to integrate backend services with IDE extensions (VSCode) and automated developer workflows.

  • System Observability & Quality: Implement automated testing, CI/CD integrations, and end-to-end observability across distributed Go services under heavy load.

  • Squad Collaboration: Work closely within a dedicated engineering squad (PM, 6 Developers, 2 DevOps engineers) to deliver clean, maintainable architecture on tight release schedules.

Requirements

  • 5+ years of commercial software engineering experience with deep, hands-on proficiency in Go (Golang).
  • Proven track record of architecting and shipping scalable distributed systems and APIs (gRPC, REST) in Go.
  • Experience building developer tooling, build engines, automated QA frameworks, or CI/CD pipelines.
  • Strong grasp of Go concurrency patterns, memory management, profiling, and high-throughput backend design.
  • Practical experience with Docker, Kubernetes, CI/CD systems, and cloud-native observability (Prometheus, OpenTelemetry, Grafana).
  • Fluent written and spoken English with strong technical communication capabilities.

Would be a plus

  • Experience in the financial services or fintech sector.
  • Experience with Language Server Protocol (LSP), AST parsing, or VSCode extension development.
  • Background in legacy platform modernization or compiler/DSL design.

Benefits

  • Opportunity to work on bleeding-edge projects
  • Work with a highly motivated and dedicated team
  • Competitive salary
  • Flexible schedule
  • Benefits package - medical insurance, sports
  • Corporate social events
  • Professional development opportunities
  • Well-equipped office

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