[Skip to main content](#main-content) [ OpenNash ](https://opennash.com/) / [Jobs](https://jobs.opennash.com/) [ 01 Search jobs](https://jobs.opennash.com/search/)[ 02 Companies](https://jobs.opennash.com/explore/)[ 03 Hiring report](https://jobs.opennash.com/reports/hiring/)[ 04 AI assistants](https://jobs.opennash.com/connect/)[ 05 How it works](https://jobs.opennash.com/methodology/) Microsoft # Pre-Training Infrastructure United States, Multiple Locations IT & Infrastructure Listed on Microsoft’s official careers site. Posted October 28, 2026. Check that it is still open and apply there. [Apply on Microsoft’s careers site →](https://apply.careers.microsoft.com/careers/job/1970393556629280) [OpenNash Jobs](https://jobs.opennash.com/) / [Microsoft](https://jobs.opennash.com/companies/microsoft/) / Pre-Training Infrastructure ## Job description Design, implement, test, and optimize distributed training infrastructure in Python and C++ for large-scale GPU clusters. Profile, benchmark, and debug performance bottlenecks across compute, memory, networking, and storage subsystems. Optimize collective communication libraries (e.g., NCCL) for emerging NVLink and InfiniBand topologies. Collaborate with hardware teams to optimize for next-generation accelerators (NVIDIA, AMD, and beyond). Gather data and insights to develop the pretraining compute roadmap. Care deeply about conversational AI and its deployment. Actively contribute to the development of AI models powering our innovative products. Find solutions to overcome roadblocks and deliver your work to users quickly and iteratively. Enjoy working in a fast-paced, design-driven product development cycle. Embody our Culture and Values. 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 Master's Degree in Computer Science or related technical field AND 8+ 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 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience. Experience in distributed computing and large-scale systems. Experience with GPU programming (CUDA, NCCL) and frameworks such as PyTorch. Proven ability to profile, benchmark, and optimize performance-critical systems. Experience in leading technical projects and supporting architectural decisions with data. Experience building infrastructure for large-scale machine learning or generative AI workloads. Experience in networking (InfiniBand, NVLink), storage systems, or distributed training parallelisms. Track record of contributing to high-performance computing or large-scale AI infrastructure projects. ## At a glance - Posted by the employer: Oct 28, 2026 - First seen by OpenNash: Jul 10, 2026 - Last checked: Nov 1, 2026 - Listed for: 114 days - Location: United States, Multiple Locations[Apply on Microsoft’s careers site →](https://apply.careers.microsoft.com/careers/job/1970393556629280) ## Hiring at Microsoft - Open jobs: 2,199 - New in the last 7 days: After two weekly collections - Tracked since: Jul 10, 2026 [All Microsoft jobs](https://jobs.opennash.com/companies/microsoft/) · [Weekly hiring report](/reports/hiring/) ## More jobs at Microsoft ### [Cloud Solution Architect - Cloud & AI Infrastructure](https://jobs.opennash.com/companies/microsoft/jobs/da00fab068d9b10b7ff2/) United States, Multiple Locations ### [Cybersecurity Infrastructure Engineer - Weekend shift](https://jobs.opennash.com/companies/microsoft/jobs/275b3b7f502021424827/) United States, Multiple Locations ### [Senior Cloud Solution Architect - Cloud & AI Infrastructure, Azure Government Cloud](https://jobs.opennash.com/companies/microsoft/jobs/056fa0db11383df1c859/) United States, Multiple Locations ### [Solution Engineer - Cloud & AI Infrastructure](https://jobs.opennash.com/companies/microsoft/jobs/adab42137b24ae6e465f/) United States, Multiple Locations ## Similar jobs at other companies ### [AIML - Staff ML Infrastructure Engineer, ML Platform & Technology - Pre-training Infrastructure](https://jobs.opennash.com/companies/apple/jobs/905c9a394f743c2c1126/) Apple · San Francisco Bay Area, United States of America ### [Research Engineer, Pre-training Data - MSL FAIR](https://jobs.opennash.com/companies/meta-platforms/jobs/5748aa3b45a1ea98d2d1/) Meta Platforms · Menlo Park, CA ### [AI Research Scientist: Multimodal Foundation Models - Architecture, Pre-Training & Distillation](https://jobs.opennash.com/companies/apple/jobs/ddec3d9e4aa9f99c549d/) Apple · Seattle, United States of America ### [AI Research Scientist, Pre-training Data - MSL FAIR](https://jobs.opennash.com/companies/meta-platforms/jobs/9fb958f34362ab96fd47/) Meta Platforms · Menlo Park, CA ### [Senior Technical Infrastructure Program Manager, QC Pre-Construction, North America Quick Commerce](https://jobs.opennash.com/companies/amazon/jobs/969550688829db013297/) Amazon · US, WA, Bellevue OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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