New

Senior Software Engineer, CoreAI

Microsoft
$119,800.00 - $234,700.00 / yr
United States, Washington, Redmond
Jan 14, 2026
Overview CoreAIis at the forefront of Microsoft's mission to redefine how software is built and experienced. Weare responsible forbuildingthe foundationalplatforms, services, programming models, and developer experiences that power the next generation of applications using Generative AI. Our work enables developers and enterprises to harness the full potential of AI to create intelligent, adaptive, and transformative software. The AI Core Infrastructureteam, part of AI Platform team inCoreAIOrganizationis responsible for large-scale, highly reliable and efficient GPU management infrastructure and the inference and training platformsthatpowersall of Microsoft's AI workloads,such as M365 CoPilot,GithubCoPilot, Microsoft CoPilot,AI Foundry's Inference and Fine-Tuning offering of OAI and OSS models, and many more. As a Senior Software Engineeron the training infrastructure team, you will work oncutting edgeinfrastructure and tools to support large scale model pre-training, post-trainingand fine-tuningon latest generation of NVIDIA and AMD GPUs in Azure and Microsoft partner clouds on some of theworld'slargest AISupercomputers. Microsoft's mission is to empower every person and every organization on the planet to achieve more. Asemployeeswe come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond. In alignment with our Microsoft values, we are committed to cultivating an inclusive work environment for all employees to positivelyimpactour culture every day. Responsibilities As a senior engineer on the training infrastructure team, your responsibilities include: Architect, design, and develop core AI Infrastructure services developed in Go, Rust,Python,C++, and C# deployed on large-scale Kubernetes clusters to supportpre-training and post-training ofstate-of-the-artLLMs, SLMs, multimodal, and code-specific models. Collaborate closely with engineers, researchers and external partners to debug, diagnose,andimprove stability of large-scale training runs. Enhance systems and applications to deliver high stability, low latency, strong security, and maintainability in large-scale complex training environments in Azure and in partner clouds. Provide operational support, technical leadership, and vision while contributing to the deployment, monitoring, and continuous improvement of engineeringsystems and practices. Qualifications Required Qualifications: Bachelor's Degree in Computer Science or related technical field AND 4+ 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: 3+ years designing, developing, and shipping high quality software. 2+ years of experience with distributed systems and cloud-based infrastructure. 1+yearof experience with DevOps practices (CI/CD, automated testing, deployment, etc.). 4+ years of software development experience in C#, C++, Python, or similar languages. 2+yearsof experience with containerization tools (e.g., Docker, Kubernetes). Knowledge and hands on experience withproductionML systems, large-scale training infrastructure, NCCL, CUDA libraries and tools. #CoreAI Software Engineering IC4 - The typical base pay range for this role across the U.S. is USD $119,800 - $234,700 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 $158,400 - $258,000 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. Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.