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SeniorPrincipal Software Engineer Growth (CoreAI)

Microsoft


Job Location:

Mountain View, CA - USA

Yearly Salary: USD 119800 - 234700
Posted: 6 October 2026 (17 hours ago)
Application Deadline: 3 January 2027
Vacancies: 1 Vacancy

Department:

Software Engineering

Job Summary

Overview

About the Role

  • WerebuildingAIfirst engineering systemsthat power growth at Microsoft designing shipping and scaling code that directly shapes how millions of developers experience and adopt AI.

  • As aGrowth Engineer inCoreAIyoullsit at the intersection ofproduct engineering and data drivingexperimentation learning velocity andreal businessimpactacross worldclassdeveloperand AI products.

  • This role is aboutshipping fast learning faster and scaling what works all while upholding Microsofts commitment toresponsible inclusive and trustworthy AI.

AboutCoreAI

  • CoreAI Platform and ToolsisMicrosofts AIfirst engineering organization created to build theendtoend Copilot & AI stackpowering products likeGitHub Copilot and Visual Studio Code.

  • Our mission is toempower every developer to shape the future with AI accelerating how AI applications are built deployed and improved atglobalscale.

Why This Role Is Exciting

  • This isnot growth at the edges this is growth at the core.

  • Build AIpowered growth loops onworldclass productslikeVS Code and GitHub

  • Operate inside ahighvelocity AIfirst engineering organizationwhere learning speed matters

  • Influence howhundreds of millions of usersdiscover adopt and succeed with AI

  • Drivereal businessimpact measured shipped and scaled

  • Help define whatresponsible growthlooks like in the AIorganisation

Our Culture & Values

  • At Microsofthow we build matters as much as what we build.

  • We are guided by our mission toempower every person and every organization on the planet to achieve more and we show up every day with:

  • Agrowth mindset

  • Respect integrity and accountability

  • A commitment toinclusive responsible AIthat earns trust and benefits everyone

  • We believe diverse perspectives make our products and our teams stronger.

ImpactYoullHave

  • Raise the bar forexperimentation qualityacrossCoreAI

  • Help defineAI growth best practicesfor Microsoft

  • Turn learning into leverage faster adoption better experiences measurable results



Responsibilities

WhatYoullDo

  • Own growth through engineering excellence and experimentation

  • Design ship and iterate ongrowth experimentsacross acquisition activation engagement and retention

  • Build and evolveA/B testing frameworks metrics and toolingthat raise experimentation quality and confidence

  • Partner closely withProduct Data Science Design and Researchto turn hypotheses into shipped learnings

  • Usedata and telemetryto guide decisions from experiment design to rollout strategy

  • Scale successful growth patterns acrosshightraffic global AI products

  • Balancespeed and rigorin a fastpaced AIfirst engineering environment

What Were Looking For

  • Software engineering fundamentals with experience building shipping and operatingproduction services or client applications

  • Proficiencyin designingscalable reliable systemsthat support rapid iteration and experimentation

  • Experience writing highquality maintainable code and owning services endtoend in a live environment

  • Ability to reason about performance reliability and correctness in hightraffic systems

  • Experience supporting or drivingexperimentation (A/B testing)in production environments

  • Understanding of experimentation quality including guardrails metricsselection and rollout strategies

  • Engineering mindset grounded inhypothesisdriven developmentand learning through iteration



Qualifications

Required Qualifications

  • Bachelors 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 thereafter.

Preferred Qualifications

  • 2 yearsshippingA/B testsendtoend in production (design instrumentation analysis rollout) including improving experiment quality and guardrails

  • 4 yearsbuilding and shippinghighavailability featuresformultiregion globally distributed systems(resiliency failover capacity planning)

  • Demonstrated experienceleaning heavily on AI to accelerate engineering velocity including using AI tools to prototype implement debug and iterate on production features



Software Engineering IC4 - The typical base pay range for this role across the U.S. is USD $119800 - $234700 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 $160200 - $261000 per year.

Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here:

Software Engineering IC5 - The typical base pay range for this role across the U.S. is USD $142800 - $274800 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 $188000 - $304200 per year.

Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here:
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.


Required Experience:

IC