Senior Golang Backend Engineer (MilTech Solutions)

Sigma Software · Kyiv, Kyiv city, Ukraine

ExclusiveRemoteFull-timeSeniorPublished Jun 22, 2026

Apply directly on Sigma Software’s careers site — no account needed.

About the role

  • Design and develop backend components within a secure DSC environment.
  • Implement APIs for seamless interaction with other system components.
  • Develop business logic, state models, event processing, and logging mechanisms.
  • Work with MS SQL Server, optimize queries, and ensure data integrity.
  • Integrate with related systems and services.
  • Participate in technical design, task estimation, and code reviews.
  • Troubleshoot and fix defects identified during testing, security audits, and acceptance phases.
  • 5+ years of commercial Golang development experience.
  • Proven experience in designing and developing backend services, REST/gRPC APIs, and system integrations.
  • Strong expertise with MS SQL Server: schema design, transactions, indexes, stored procedures, query optimization.
  • Experience with Docker, CI/CD pipelines, Git, and Linux environments.
  • Solid understanding of secure development principles: authorization, authentication, access control, audit, API protection.
  • Background in microservices or modular architecture.
  • Ability to write maintainable, well-documented, and tested code.
  • Experience participating in code reviews and technical design sessions.
  • Willingness to work within secure infrastructure and comply with strict information security protocols.

Nice-to-have

  • Experience developing government information systems or highly secure platforms.
  • Knowledge of digital signature (КЕП), user action logging, audit trail.
  • Experience integrating systems across isolated or protected environments.
  • MS SQL Server experience in production environments.
  • Understanding of Kubernetes, message brokers, and event-driven architecture.
  • Experience with high-load or mission-critical services.
  • Strong security-focused mindset.

Skills

  • Go
  • SQL
  • Docker
  • GitHub Actions
  • Linux
  • REST
  • gRPC

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