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Senior Software Engineer, Cloud Platform

Microsoft


Job Location:

Redmond, WA - USA

Yearly Salary: USD 119800 - 234700
Posted: 12 November 2026 (Yesterday)
Application Deadline: 9 February 2027
Vacancies: 1 Vacancy

Department:

Software Engineering

Job Summary

Overview
Microsoft 365 is Microsofts hosted productivity suite which is well aligned with our mission to empower every person and every organization on the planet to achieve more. This suite has hundreds of millions of users around the globe and includes services such as Sharepoint Exchange and Teams Office Graph and OneDrive.

The prime responsibility of the M365 Substrate Unified Routing Fabric team is to make the Microsoft 365 applications responsive by optimizing network access to the backend servers. We run a high scale distributed service that routes tens of trillions of requests per day and moves petabytes of data. This includes both user-to-service and service-to-service communication. Our software services end user requests and will proxy the connections accurately to the backend services in the most optimal way possible to achieve ever improving low-latency goals. Example technologies that we work with include load balancing connection management throttling distributed caching web application firewall Domain Name System (DNS) and HTTP/3.

As a Senior Software Engineer Cloud Platformour team is pioneering the next generation of cloud proxy architecture through Nanoproxya lightweight high-performance native proxy designed to replace legacy IIS-based (Internet Information Services) solutions and enable a microservices-based future for Microsofts cloud. With the MIRA (M365 Integrated Routing Architecture) this team now handles traffic for major M365 workloads like Teams and SharePoint Online providing enhanced routing resilience and security. The team is known for technical excellence a culture of innovation and a commitment to operational impact at massive scale.

Microsofts 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
  • Independently uses appropriate artificial intelligence (AI) tools and practices across the software development lifecycle (SDLC) in a disciplined manner. Takes responsibility for the content of their AI-generated requirements design documents code and other assets assisting other members of the team to do the same. Experiments with AI tools and practices to improve their own capabilities.
  • Design and implement features in Nanoproxy to support different scenarios in M365 including Copilot.
  • Build distributed highly available and resilient systems.
  • Work with services spanning thousands of servers doing tens of billions of transactions and serving hundreds of millions of users
  • Drive technical excellence through code reviews architecture design and mentoring of early in profession engineers.
  • Within M365 DevOps team members take care of all aspects of running a service: planning design implementation delivery monitoring and including (daytime hour) on-call duties.


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 or C#
    • 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:
  • Masters 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 or C#
    • OR Bachelors 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 or C#
    • OR equivalent experience.
  • Experience in networking security or proxy-related services. Experience working with large scale distributed systems.
#Platform #Routing#Networking #Security #Proxy #Firewall #Layer7 #Proxy


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:
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