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Job Details
Posted date: Jun 11, 2026
There have been 66 jobs posted with the title of Principal Software Engineer, CoreAI all time at Microsoft.There have been 66 Principal Software Engineer, CoreAI jobs posted in the last month.
Category: Software Engineering
Location: Redmond, WA
Estimated salary: $223,500
Range: $142,800 - $304,200
Employment type: Full-Time
Work location type: 3 days / week in-office
Role: Individual Contributor
Description
OverviewThe CoreAI AI Platform team is seeking a Principal Software Engineer in Redmond, WA to design and evolve cloud-scale platform services, developer and research tooling, and governed data infrastructure that enable safe, reliable, and efficient delivery of AI-powered product experiences.
Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we 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 positively impact our culture every day.
Responsibilities
- Lead the architecture and implementation of large-scale platform services that support complex engineering and AI workflows in distributed cloud environments.
- Build internal tooling and automation that improve productivity for engineers and researchers across experimentation, deployment, and operational workflows.
- Design platform capabilities that make data easier to discover, access, and use in secure, governed, and auditable ways.
- Drive operational excellence through improvements in reliability, observability, deployment safety, and incident readiness.
- Partner across teams to resolve cross-cutting technical problems and align architecture, engineering standards, and long-term investments.
- Mentor engineers, contribute to technical reviews, and help raise the engineering bar across the organization.
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, Python or equivalent experience.
Preferred Qualifications
- 6+ years of experience designing, building, and operating large-scale software systems.
- Strong expertise in distributed systems, cloud infrastructure, platform engineering, or data infrastructure.
- Demonstrated technical leadership across ambiguous problem spaces and across team boundaries.
- Experience improving production reliability, security, and operational efficiency for complex services.
- #AIPLATFORM
- Experience building internal platforms, developer tooling, or workflow automation for engineering or research organizations.
- Experience with governed data platforms, access control, observability, or compliance-aware system design.
- Experience supporting AI or ML-adjacent workloads and the infrastructure around them.
- Strong mentoring and collaboration skills with a track record of raising engineering quality across teams.
Software Engineering IC5 - The typical base pay range for this role across the U.S. is USD $142,800.00 - $274,800.00 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 $188,000.00 - $304,200.00 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.