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Principal Software Engineer - GitHub Actions

Microsoft· Software Engineering
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Czech RepublicCZK 1983k - CZK 3553kfull-timePosted 1mo ago

About the role

Principal Software Engineer to architect and deliver high-performance systems powering GitHub Actions, leading technical execution across distributed teams and driving reliability, security, and scalability at massive scale.

Responsibilities

  • Design, develop, test and ship high-quality technical solutions that scale across multiple GitHub services.
  • Provide technical leadership, mentorship, pairing opportunities, and code reviews to encourage the growth of others; support teams in producing extensible and maintainable code, ensuring integration with downstream dependencies and adherence to quality standards.
  • Own and advocate for the health and quality of the systems that the team builds, including participating in on-call for first responder rotations and live incidents.
  • Design and implement APIs to facilitate seamless integration between software components.
  • Collaborate with cross-functional teams and partner with stakeholders and lead discussions for technical solutions, including design and cost considerations.
  • Lead the team in developing comprehensive testing strategies, defining success metrics, and incorporating customer feedback to drive continuous improvement.
  • Champion security across GitHub Actions by designing and implementing isolation mechanisms for untrusted code execution, ensuring compliance with enterprise security requirements, and partnering with Security teams to protect against vulnerabilities in our services.
  • Champion operational excellence by improving system reliability, reducing incident response times, and establishing best practices for monitoring, alerting, and runbooks across Actions services.
  • Drive and support technical roadmap that aligns with product goals, ensuring that engineering efforts are strategically prioritized and incorporating the adoption of new technologies and methodologies where applicable.”],
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Qualifications

  • Bachelor's Degree in Computer Science or related technical field and demonstrated technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python, Rust OR equivalent experience.
  • Demonstrated experience with large-scale system architecture and design, particularly in cloud-based environments, with a strong understanding of distributed systems and microservices.
  • Technical leadership and hands on coding experience.

Skills

Required:Large-scale system architectureCloud-based environmentsTechnical leadership
Last updated Oct 23, 2026. Interested? Apply on the company site.

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