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Overview
Microsoft Substrate is the foundational cloud platform that powers many of Microsoft's most critical services including Exchange Online and M365 Copilot, providing shared infrastructure, identity, messaging, storage, and service-to-service capabilities used across Microsoft 365 and related cloud offerings. Substrate services operate at global scale and are designed to deliver high availability, reliability, and security for some of the world's most demanding workloads.
As a Senior Site Reliability Engineer, you will lead reliability improvements across multiple services or components, solving complex, cross-cutting operational problems. You are recognized as a subject matter expert in your area and lead by example through strong technical judgment, ownership, and accountability.
You will influence service architecture, define reliability strategies, mentor other SREs, and drive meaningful reductions in incidents, toil, and operational risk-particularly for services operating in regulated, sovereign, or compliance-sensitive environments.
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.
Responsibilities
Responsibilities
Ensure 24x7 Service Reliability: Act as a Designated Responsible Individual (DRI) in an on-call rotation, leading incident response and resolution to maintain uptime and performance for Microsoft's most critical services.
Support and Automate Deployments: Execute and improve manual operations and deployments for our products, while designing automation to scale and streamline those processes across environments.
Build Scalable Systems: Develop automation for monitoring, alerting, debugging, and deployment to reduce manual effort and accelerate safe, reliable delivery.
Drive Compliance and Security: Ensure systems meet Microsoft's standards for security, privacy, and accessibility, especially when onboarding new technologies.
Lead Post-Incident Learning: Conduct postmortems, share insights, and implement solutions that prevent recurrence-fostering a culture of learning and continuous improvement.
Collaborate Across Teams: Partner with engineering and product teams to align reliability goals with customer needs and deliver seamless user experiences.
Stay Ahead Technically: Continuously invest in your technical growth to improve system availability, observability, and performance at scale.
Qualifications
Required Qualifications:

• Master's Degree in Computer Science, Information Technology, or related field AND 2+ years technical experience in software engineering, network engineering, or systems administration
  • OR Bachelor's Degree in Computer Science, Information Technology, or related field AND 4+ years technical experience in software engineering, network engineering, or systems administration
  • OR equivalent experience.

Other Requirements:
Security Clearance Requirements
Candidates must be able to meet Microsoft, customer and/or government security screening requirements required for this role. These requirements include, but are not limited to, the following specialized security screenings:
This role requires access to Microsoft Government cloud environments, including GCC Moderate (GCCM), GCC High (GCCH), and Department of Defense (DoD) environments. As a result, the successful candidate must be able to obtain and maintain the appropriate background investigations and customer screenings required for access to these environments.

• For access to GCCH and DoD environments, this role requires the ability to obtain and maintain a favorably adjudicated Tier 3 (T3) background investigation.
• For access to GCCM environments, this role requires the ability to meet Criminal Justice Information Services (CJIS) eligibility requirements.

For manager-level roles, a Tier 5 (T5) background investigation is preferred, as certain approval authorities and operational responsibilities require this level of screening.
Candidates may be considered without currently holding these background investigations, provided they are eligible for and able to successfully obtain them. Candidates may begin work while required background investigations are in progress; however, failure to obtain or maintain the appropriate clearance and/or customer screening requirements may result in employment action up to and including termination.
In addition, this position will be required to pass the Microsoft Cloud Background Check upon hire/transfer and every two years thereafter.
Preferred Qualifications:

• Doctorate Degree in Computer Science, Information Technology, or related field AND 3+ years technical experience in software engineering, network engineering, or systems administration
  • OR Master's Degree in Computer Science, Information Technology, or related field AND 6+ years technical experience in software engineering, network engineering, or systems administration OR Bachelor's Degree in Computer Science, Information Technology, or related field AND 8+ years technical experience in software engineering, network engineering, or systems administration
  • OR equivalent experience.
• 3+ years technical experience working with large-scale cloud or distributed systems.

Site Reliability 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 $160,200 - $261,000 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.