Microsoft

Principal Software Engineer - GitHub Platform & Enterprise

Microsoft$220K — $331K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's Degree in Computer Science or related field AND 6+ years of technical engineering experience in programming languages like C, C++, C#, Java, JavaScript, or Python, OR equivalent experience.
  • Preferred: Master's Degree in Computer Science or related field AND 12+ years of technical engineering experience, OR Bachelor's Degree AND 15+ years of experience, OR equivalent experience.
  • 2+ years of technical leadership experience.
  • 3+ years of experience in general programming languages (e.g., Go, Ruby) and scripting languages (e.g., Bash, Python).
  • Experience in building large-scale services and CI/CD or orchestration systems.

Responsibilities

  • Design, develop, test, and ship high-quality technical solutions across multiple GitHub services.
  • Provide technical leadership, mentorship, and conduct code reviews to facilitate team growth.
  • Own the health and quality of systems, participating in on-call rotations and incident management.
  • Implement APIs for seamless software integration.
  • Collaborate with cross-functional teams on technical solutions and design considerations.
  • Lead the development of comprehensive testing strategies and success metrics based on customer feedback.
  • Champion security by designing isolation mechanisms for untrusted code execution and ensuring compliance with security standards.

Benefits

  • Access to professional development opportunities.
  • Support for career growth with mentoring and leadership initiatives.
  • Work in a collaborative and innovative engineering environment.
  • Participation in a rotating on-call schedule for system reliability.
Full Job Description
Overview

GitHub is growing its Engineering team and is hiring across multiple product and platform areas, seeking experienced professionals to elevate our software engineering efforts. As a Staff Software Engineer at GitHub, you will architect and deliver high-performance systems that power collaboration for millions of developers. You will drive technical execution from design through production, leading initiatives across distributed teams.

We have multiple roles open across the following teams, we are hiring for Principal Software Engineers.

GitHub Actions: Within GitHub's ecosystem, Actions powers automation for millions of developers worldwide, enabling them to build, test, and deploy code directly from their repositories. As the backbone of CI/CD workflows across GitHub, Actions processes billions of jobs monthly, from simple builds to complex deployment pipelines spanning multiple environments. Our team owns the core infrastructure and services that make this possible, ensuring reliability at a massive scale. We're a group of engineers passionate about developer productivity, tackling challenges in distributed systems, container orchestration, security, and cloud infrastructure. You'll work alongside talented colleagues who value collaboration, operational excellence, and building products that developers love.

Enterprise AI Platform: We are looking for Principal Software Engineer's to define and build the foundational systems for GitHub's Enterprise AI Platform. This role sits at the intersection of distributed systems, AI/agent platforms, developer tooling, identity, policy, and platform architecture. You will shape how AI agents operate safely and consistently across IDEs, CLI, MCP, long-running agents, and future Copilot experiences. This is a highly strategic, high-ambiguity role with broad technical influence across Copilot, platform infrastructure, client experiences, identity, billing, and enterprise products. You will define platform primitives that shape enterprise AI adoption across millions of developers and tens of thousands of organizations across GitHub's ecosystem.

Enterprise Identity: Identity is a critical foundation for GitHub's agentic AI ecosystem, enabling secure interactions between users, applications, and AI agents. As AI adoption scales, systems must support trust, authorization, delegation, and policy enforcement at a global scale. In this role, you will lead the architecture of Tier-0 identity services powering authentication and authorization, while shaping the future of agentic identities across the GitHub ecosystem. These systems must operate with the highest standards of security, reliability, and scalability, serving billions of requests daily. You will partner across Security, Platform, AI, and Product teams to define strategy, drive architecture, and build the identity control plane for GitHub's AI-powered future.

Billing: We are looking for Principal Software Engineer's to own and evolve the metered billing systems that power how millions of developers and organizations pay for GitHub. This role sits at the intersection of billing infrastructure, spend controls, and financial data integrity - full-stack, from backend services to APIs to the customer-facing experience. This is a high-trust, high-consequence role: engineering decisions here carry real financial and compliance impact, and you'll build deep expertise in a domain that's increasingly valuable across the industry. You will drive architectural decisions balancing reliability, scale, and developer velocity, mentor engineers across the team, and partner across GitHub and Microsoft on shared billing and commerce infrastructure problems.

Git Systems: Git Systems Engineering team, which runs the largest code-hosting platform in the world, part of our Platform and Infrastructure organization. Our group is responsible for the services that store and serve Git repositories, both directly to users and to other layers in the GitHub software stack. We build the various microservices, protocols, proxies, and control systems that power Git operations at GitHub and operate them at scale. This role is focused on wide-reaching, cross-team work to improve our git code-hosting platform. This role will be involved in the design, rollout and support of highly performant, highly scalable, and highly available services to enable the next generation of AI-driven software development.

Database Infrastructure : Our team ensures the reliability, performance, and scalability of a fleet comprising hundreds of terabytes of data and serving more than 20 million queries per second. In this role, you will design and operate core database infrastructure across self-managed and cloud-managed environments. You will provide deep expertise in database internals and administration, partner with engineering teams across GitHub, and help guide the continued evolution of our database fleet.

Responsibilities
  • Design, develop, test and ship high-quality technical solutions that scale across multiple GitHub services and become intimately familiar with the systems you build and take pride in writing maintainable code.
  • 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.


Qualifications

Required Qualifications

  • Bachelor's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
    • OR equivalent experience.


Other Requirements

Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include but are not limited to the following specialized security screenings:
  • Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years


Preferred Qualifications:
  • Master's Degree in Computer Science or related technical field AND 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
  • OR Bachelor's Degree in Computer Science or related technical field AND 15+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience.
  • 2+ year(s) technical leadership experience
  • 3+ years' experience using general purpose programming languages (e.g., Go, Ruby, or a similar language)
  • 3+ years' experience in one or more scripting languages (e.g., Bash, Python, or a similar language)
  • Experience building and operating large-scale services, backend or full-stack, including on call.
  • Experience building CI/CD or orchestration systems at scale
  • Willingness and ability to participate in a rotating on-call schedule


Software Engineering IC6 - The typical base pay range for this role across the U.S. is USD $165,600 - $296,400 per year. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $220,800 - $331,200 per year.

Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here:
https://careers.microsoft.com/us/en/us-corporate-pay

This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.

About Microsoft

Microsoft is an American multinational corporation that develops, manufactures, licenses, supports, and sells a range of software products and services. Microsoft’s devices and consumer (D&C) licensing segment licenses the Windows operating system and related software, Microsoft Office for consumers, and the Windows Phone operating system. The company’s computing and gaming hardware segment provides Xbox gaming and entertainment consoles and accessories, second-party and third-party video games, and Xbox Live subscriptions; surface devices and accessories; and Microsoft PC accessories. Its phone hardware segment offers Lumia smartphones and other non-Lumia phones. Its D&C segment provides Windows Store, Xbox Live transactions, and Windows phone store; search advertising; display advertising; Office 365 Home and Office 365 Personal; first-party video games; and other consumer products and services as well as operating retail stores. Microsoft’s commercial licensing segments license server products, including Windows Server, Microsoft SQL Server, Visual Studio, System Center, and related Client Access Licenses (CALs); Windows Embedded; Windows operating system; Microsoft Office for business, including Office, Exchange, SharePoint, Lync, and related CALs; Microsoft Dynamics business solutions; and Skype. Its commercial segment offers enterprise services, including premier support services and Microsoft consulting services; commercial cloud comprising Office 365 Commercial, other Microsoft Office online offerings, Dynamics CRM Online, and Microsoft Azure; and other commercial products and online services. The company markets and distributes its products through original equipment manufacturers, distributors, and resellers, as well as online.

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Size
181,000 employees
Market Cap
$1,762.4 billion
Industry
Net Income
$51.3 billion
Founded
1975
5 Year Trend
+15.5%
Revenue
$153.2 billion
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