Principal Software Engineer - M365 Core

Microsoft Corporation • Redmond, WA • 9h ago

Overview

You'll join the Experimentation and Configuration Service (ECS) team, where you'll build infrastructure that operates at massive scale with billions of requests per day. We're the team that customers trust to deliver configuration changes safely, quickly, and reliably. Our client SDKs are the critical interface between services and the ECS platform, and we're looking for engineers who want to solve hard problems in security, resilience, and distributed systems.

As a Principal Software Engineer working on the ECS Client SDK, you'll own the development of client libraries that provide security, resilience, and observability for mission-critical services. You'll design and implement features like authentication, caching with multi-layer fallbacks, telemetry, and failure recovery mechanisms. You'll collaborate with service teams across Microsoft to understand their operational challenges and translate them into reusable SDK capabilities that benefit the entire ecosystem.

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

Partners with appropriate stakeholders to determine user requirements for a set of scenarios.

Leads identification of dependencies and the development of design documents for a product, application, service, or platform.

Leads by example and mentors others to produce extensible and maintainable code used across products.

Leverages subject-matter expertise of cross-product features with appropriate stakeholders (e.g., project managers) to drive multiple group's project plans, release plans, and work items.

Holds accountability as a Designated Responsible Individual (DRI), mentoring engineers across products/solutions, working on-call to monitor system/product/service for degradation, downtime, or interruptions.

Proactively seeks new knowledge and adapts to new trends, technical solutions, and patterns that will improve the availability, reliability, efficiency, observability, and performance of products while also driving consistency in monitoring and operations at scale and shares knowledge with other engineers.

Embody our culture (https://careers.microsoft.com/v2/global/en/culture) and values (https://www.microsoft.com/en-us/about) .

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, or Python

OR equivalent experience.

Preferred Qualifications:

Bachelor's Degree in Computer Science or related technical field AND 10+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python

OR Master's 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++, C#, Java, JavaScript, or Python

OR equivalent experience.

Software Engineering IC5 - The typical base pay range for this role across the U.S. is USD $139,900 - $274,800 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 - $304,200 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. (https://careers.microsoft.com/v2/global/en/accessibility.html)

Similar Jobs

Analyst II, Data Science

Liberty Mutual Group Inc. • Seattle, WA • 1h ago

IT & Engineering

Applies knowledge of sophisticated analytics techniques to manipulate large structured and unstructured data sets in order to generate insights to inform underwriting decisions. Research and develop in-house AI/ML produc...

1h ago

Go to Apply

National Society of Black Engineers (NSBE) 26 Conference Attendees (3/2026) Intern and Graduate Positions - Locations across the US

Jacobs • Bellevue, WA • 1h ago

IT & Engineering

We are seeking Interns and Entry Level Engineers, Scientists, Construction Management Professionals, and Architects, to join teams across North America. You'll impact the world around you by helping us solve real-life ch...

1h ago

Go to Apply

Avionics Electrical Design Engineer

Stoke Space Technologies, Inc. • Kent, WA • 9h ago

IT & Engineering

Responsibilities Lead the design, procurement, development, qualification, and integration of avionics components. Perform component selection, design analysis, schematic capture, prototyping, bring-up, debugging, circui...

9h ago

Go to Apply

Avionics Electrical Design Engineer - Motor Controls

Stoke Space Technologies, Inc. • Kent, WA • 9h ago

IT & Engineering

Responsibilities Designing, tuning, testing, and qualifying motor control electronics on the NOVA reusable launch vehicle Define, design, manufacture, and test control electronics hardware Drive designs through the full...

9h ago

Go to Apply

Software Engineer-Developer

PDS Tech Commercial • Kent, WA • 9h ago

IT & Engineering

Launch Your Career in Aerospace: Software Engineer-Developer | Embedded Systems & Avionics Location: Kent, WA Job Type: Full-Time Consultant (12 Months) Schedule: Monday-Friday | 1st Shift (9:00 AM - 5:30 PM) Pay Rat...

9h ago

Go to Apply

Software Engineer-Developer

PDS Tech Commercial • Kent, WA • 9h ago

IT & Engineering

Code the Future of Flight: Software Engineer-Developer (Ada) | Aerospace Innovation Location: Kent, WA Job Type: Full-Time Consultant (12 Months) Schedule: Monday-Friday | 1st Shift (8:00 AM - 5:30 PM) Pay Rate Starting...

9h ago

Go to Apply

Electrical Design Engineer 2

Safran • Everett, WA • 9h ago

IT & Engineering

Electrical Design Engineer 2 Job details General information Entity Safran is an international high-technology group, operating in the aviation (propulsion, equipment and interiors), defense and space markets. Its core p...

9h ago

Go to Apply

Datacenter Engineering - Senior Electrical Engineer

Microsoft Corporation • Redmond, WA • 9h ago

IT & Engineering

Overview Microsoft Cloud Operations and Innovation (CO+I) is the team behind the cloud. Within CO+I, the Regional Datacenter Engineering (RDCE) team is responsible for delivering core datacenter infrastructure for Micros...

9h ago

Go to Apply

Software Engineer IV

Indeed • Seattle, WA • 9h ago

IT & Engineering

Our Mission As the world's number 1 job site*, our mission is to help people get jobs. We strive to cultivate an inclusive and accessible workplace where all people feel comfortable being themselves. We're looking to gro...

9h ago

Go to Apply

Software Engineer II

Warner Bros. Discovery • Bellevue, WA • 9h ago

IT & Engineering

Welcome to Warner Bros. Discovery... the stuff dreams are made of. Who We Are... When we say, "the stuff dreams are made of," we're not just referring to the world of wizards, dragons and superheroes, or even to the wond...

9h ago

Go to Apply

Subscribe to get new jobs sent directly to you
(no charge, cancel anytime)

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.