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Microsoft Corporation Logo Microsoft Corporation · IT - Software Development

Senior Research Engineer

United States, Redmond 119800.00 - 234700.00 USD / Year · Job Posted February 13, 2026
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Job Description

Join Microsoft’s CoreAI group as a Senior Research Engineer on the AI Data Platform team—the foundation for secure, scalable, reusable datasets that power AI model development across the company. This central platform manages the full lifecycle of Microsoft’s AI training data, accelerating model development with high-quality, compliant, and reusable datasets and services.

Job Responsibility

  • Design and build a data quality evaluation framework for AI training datasets, including scalable metrics, testing methodologies, and automated reporting.
  • Define and operationalize quality signals aligned to model outcomes (e.g., coverage, diversity, noise/duplication, labeling consistency, safety/toxicity, privacy/compliance risk indicators).
  • Develop task- and model-aware evaluation approaches that connect dataset properties to training performance, reliability, and safety.
  • Create automated dataset validation gates and monitoring to support continuous dataset iteration (e.g., regression detection across dataset versions).
  • Design and implement synthetic data generation pipelines (LLM-driven and programmatic approaches) to improve long-tail representation, fill coverage gaps, and accelerate iteration cycles.
  • Build guardrails for synthetic data: filtering, scoring, calibration, provenance tracking, and bias/safety checks to ensure quality and compliance.
  • Partner with engineering to integrate evaluation and generation into the platform’s end-to-end data lifecycle.
  • Collaborate with cross-functional stakeholders to run experiments, establish best practices, and deliver reusable tools that scale across multiple model and product teams.

Requirements

  • Bachelor's Degree in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 4+ years related experience (e.g., statistics predictive analytics, research)
  • OR Master's Degree in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 3+ years related experience (e.g., statistics, predictive analytics, research)
  • OR Doctorate in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field AND 1+ year(s) related experience (e.g., statistics, predictive analytics, research)
  • OR equivalent experience.
  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role.
  • Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.

Nice to have

  • 3+ years of coding experience in Python and experience with ML frameworks such as PyTorch and Triton
  • 2+ years experience of large-scale model training for LLMs, SLMs, and agentic models
  • 2+ years of proven ability to design and scale training infrastructure and pipelines in production environments
  • Experience with agent training frameworks
  • Hands-on experience with large-scale distributed training and/or serving with demonstrated ability to dive deep into complex systems, troubleshoot unconventional issues, and craft innovative solutions under real-world constraints
  • Extensive experience with large-scale training, model inference, reinforcement learning, and reasoning models
  • Demonstrated ability to work in cross-functional teams and collaborate effectively with researchers, product managers, and other engineers to deliver complex ML solutions
  • Startup-style mindset: agile, solution-oriented, and self-driven
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