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Senior Principal Go Developer (Cybersecurity Platform)


Job Location:

Warsaw - Poland

Monthly Salary: Not provided by the employer
Posted: 28 August 2026 (18 hours ago)
Application Deadline: 25 November 2026
Vacancies: 1 Vacancy

Job Summary

  • Independently own and navigate a large backend ecosystem consisting of multiple services with minimal ramp-up support
  • Develop and maintain backend services using Golang
  • Write clean scalable and maintainable code while actively participating in code reviews and technical discussions
  • Analyze legacy and unreviewed code to identify technical debt systemic issues and architectural risks
  • Proactively identify inefficiencies gaps and areas for improvement proposing and implementing solutions
  • Collaborate with engineering and product teams to define technical objectives and execute roadmap initiatives
  • Advocate for architectural improvements and negotiate technical decisions with peer engineering teams
  • Contribute to long-term platform evolution while balancing short-term business priorities
  • Ensure reliability and performance of high-load production systems

Qualifications :

  • 5 years of commercial software development experience
  • Strong proficiency in Golang
  • Strong computer science fundamentals including algorithms data structures and system design
  • Experience across the full software development lifecycle from planning and objective-setting to delivery and support
  • Proven experience working with high-load high-traffic production systems
  • Solid understanding of scalable and maintainable backend architecture principles
  • Ability to independently work with large and unfamiliar codebases
  • Strong analytical and problem-solving skills
  • Demonstrated proactive mindset with the ability to identify issues before escalation
  • Experience aligning technical solutions with business and customer needs
  • Ability to effectively communicate and negotiate technical direction with engineering stakeholders
  • Upper-Intermediate English level

WILL BE A PLUS

  • Experience with C Objective-C or Rust
  • Previous experience as a primary owner of a large-scale legacy system
  • Experience working within cybersecurity or infrastructure-focused products
  • Background in distributed systems and service-oriented architectures

Additional Information :

PERSONAL PROFILE

  • Highly proactive and self-driven engineer
  • Strong ownership mentality
  • Confident in making technical decisions and defending architectural approaches
  • Comfortable working in ambiguous and complex environments
  • Strong collaboration and communication skills
  • Focused on long-term quality and engineering excellence

Remote Work :

Yes


Employment Type :

Full-time


About Company

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At Sigma Software, we are involved with the client’s team to contribute to the design and development of a technical solution for their tokenized domain reservation platform. We started by assigning a software architect to design the smart contracts and integrate blockchain into the s ... View more

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