• Design & own evaluation/optimization frameworks for frontier music models • Drive product & research roadmap • Build stable infrastructure • Champion scientific rigor

• Design, code, test, and maintain COBOL programs for mainframe applications • Work with mainframe systems and associated technologies to ensure optimal performance and reliability • Analyze business requirements and system specifications to develop effective and efficient COBOL solutions. Identify and troubleshoot issues, providing timely resolutions • Collaborate with cross-functional teams, including business analysts, systems analysts, and other developers, to ensure seamless integration of COBOL applications within the broader IT ecosystem • Create and maintain comprehensive documentation for all COBOL programs, ensuring clarity and ease of understanding for other team members • Conduct thorough unit testing of developed code to ensure its functionality, reliability, and compliance with established standards • Identify opportunities for performance optimization and implement necessary improvements to enhance the overall efficiency of COBOL applications

About GitHub GitHub is the world’s leading platform for agentic software development — powered by Copilot to build, scale, and deliver secure software. Over 180 million developers, including more than 90% of the Fortune 100 companies, use GitHub to collaborate, and more than 77,000 organisations have adopted GitHub Copilot. Locations In this role you can work from Remote, United States Overview GitHub is seeking a Principal Software Engineer to join the 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. Our group is highly distributed and the right candidate will thrive in an environment of asynchronous communication. We expect you to have excellent written communication skills and be able to create working relationships with coworkers in locations around the globe. 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. Responsibilities - Design, develop, test, and ship high-quality technical solutions that scale across multiple GitHub services; build deep familiarity with the systems you own; and write maintainable code. - Document architectural designs and proposals, run targeted experiments, and validate approaches with prototypes. - Lead by example and mentor others to produce extensible and maintainable code used across products and integrated with downstream dependencies. - Provide technical leadership through code reviews for solutions and product areas to ensure quality standards are met, while designing for high availability and GitHub-scale performance. - Coordinate with engineering and product owners to define, prioritize, and deliver projects to meet business goals. - Maintain operations of live services as issues arise on a rotational, on-call basis. Implement and support others to build solutions and mitigations to complex issues impacting the performance or functionality of Live Site services. - Cultivate an environment where team members are empowered and demonstrate a strong sense of ownership and belonging. Qualifications Required Qualifications: - 11+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python, - OR Associate’s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 10+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python, - OR Bachelor's Degree in Computer Science or related field AND 9+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python, - OR Master's Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 7+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python, - OR PhD Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 5+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python, - OR equivalent experience. Other Qualifications: - Ability to meet GitHub, 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, GitHub’s parent company, Cloud Screen upon hire/transfer and every two years thereafter. Preferred Qualifications: - Experience with cloud platforms like Microsoft Azure and Amazon Web Services - Understanding of production system monitoring and observability - Ability to think critically about both system design and software engineering concepts and blend those perspectives pragmatically based on project needs - Demonstrated experience with large-scale system architecture and design, particularly in cloud-based environments, with a strong understanding of distributed systems and microservices - Experience working closely with product management, design, and other engineering teams to drive cross-functional projects and deliver high-quality product Compensation Range The base salary range for this job is USD $160,200.00 - USD $425,000.00 /Yr. These pay ranges are intended to cover roles based across the United States. An individual's base pay depends on various factors including geographical location and review of experience, knowledge, skills, abilities of the applicant. At GitHub certain roles are eligible for benefits and additional rewards, including annual bonus and stock. These rewards are allocated based on individual impact in role. In addition, certain roles also have the opportunity to earn sales incentives based on revenue or utilization, depending on the terms of the plan and the employee's role. GitHub values - Customer-obsessed - Ship to learn - Growth mindset - Own the outcome - Better together - Diverse and inclusive Manager fundamentals - Model - Coach - Care Leadership principles - Create clarity - Generate energy - Deliver success Who We Are GitHub is the world’s leading AI-powered developer platform with 150 million developers and counting. We’re also home to the biggest open-source community on earth (and 99% of the world’s software has open-source code in its DNA). Many of the apps and programs you use every day are built on GitHub. Our teams are dreamers, doers, and pioneers, leading the way in AI, driving humanitarian efforts around the globe, and even sending open source to Mars (and beyond!). At GitHub, our goal is to create the space you need to do your best work. We’re remote-first and offer competitive pay, generous learning and growth opportunities, and excellent benefits to support you, wherever you are—because we know that people flourish when they can work on their own terms. Join us, and let’s change the world, together. EEO Statement GitHub is made up of people from a wide variety of backgrounds and lifestyles. We embrace diversity and invite applications from people of all walks of life. We don't discriminate against employees or applicants based on gender identity or expression, sexual orientation, race, religion, age, national origin, citizenship, disability, pregnancy status, veteran status, or any other differences. Also, if you have a disability, please let us know if there's any way we can make the interview process better for you; we're happy to accommodate!

• Contribute to the entire development cycle of our cutting-edge large deep learning models. • Prepare datasets, design architectures, implement solutions, train and evaluate models to improve our products. • Collaborate closely with engineers and researchers to translate cutting-edge research into practical applications. • Join us at an exciting moment, wear many hats and help us build something from the ground up!