Jobs in the United States

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Added 12 mins ago
Principal Systems Engineer Architect
Northrop Grumman
Melbourne, FL
Northrop Grumman Aeronautics Systems has an opening for a Principal Systems Engineer Architect to join our team of qualified, diverse individuals. This position will be located on-site in…
Added 12 mins ago
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Principal Firmware Engineer
Microsoft
WA · Redmond, WA · Redmond
- $142,800 to $304,200 USD / year
Microsoft Silicon, Cloud Hardware, and Infrastructure Engineering (SCHIE) is the team behind Microsoft’s expanding Cloud Infrastructure and responsible for powering Microsoft’s “Intelligent…
Added 13 mins ago
M
Principal Software Engineer
Microsoft
WA · Redmond, WA · Redmond
- $142,800 to $304,200 USD / year
We are looking to welcome a Principal Software Engineer to a group of innovative, energetic and diverse engineers on the CoPilot Runtime Platform team, which is the engineering organization…
Added 23 mins ago
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Principal Technical Program Manager
Microsoft
WA · Redmond, WA · Redmond
- $142,800 to $304,200 USD / year
1+ year(s) technical product/service/project, software development or software engineering experience
Added 34 mins ago
M
Senior Principal Technical Program Manager
Microsoft
WA · Redmond, WA · Redmond
- $165,600 to $331,200 USD / year
Cloud Infrastructure Automation and Optimization (CIAO) is the software team that delivers tools, automation, and AI to enable fast, predictable delivery of datacenter capacity, and safe,…
Added 34 mins ago
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Principal Software Engineer
Microsoft
WA · NY · CA · Redmond, WA · Mountain View, CA · Sunnyvale, CA · Redmond · New York · Mountain View · Sunnyvale
- $142,800 to $304,200 USD / year
As a Principal Software Engineer, on the Substrate Application Platform team, you will help build the next generation platform for internal and external developers and agents to access M365…
Added 34 mins ago
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Principal Software Engineer - Cloud Infrastructure & AI Systems
Microsoft
WA · TX · OR · CA · NC · Redmond, WA · Austin, TX · Hillsboro, OR · Mountain View, CA · Raleigh, NC · Redmond · Austin · Hillsboro · Mountain View · Raleigh
- $142,800 to $304,200 USD / year
The Firmware Center of Excellence (FW CoE) is responsible for the hardware, firmware, and platform software stack that powers Azure's global infrastructure. We are seeking a Principal…
Added 34 mins ago
M
Principal Software Engineering Manager
Microsoft
WA · Redmond, WA · Redmond
- $142,800 to $304,200 USD / year
We are looking for a Principal Software Engineering Manager to lead an engineering team responsible for defining, building, and evolving the foundational capabilities of the Perception…
Added 35 mins ago
M
Principal Product Designer - CTJ - Secret
Microsoft
United States
- $142,800 to $304,200 USD / year
…informed decisions, and accomplish critical work. We are seeking a Principal Product Designer to lead human-centered design efforts supporting Microsoft’s defense industrial base customers.…
Added 35 mins ago
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Principal Hardware Engineer
Microsoft
WA · CA · OR · NC · TX · Redmond, WA · Mountain View, CA · Hillsboro, OR · Raleigh, NC · Austin, TX · Redmond · Mountain View · Hillsboro · Raleigh · Austin
- $142,800 to $304,200 USD / year
…or recovery outcome at production scale, using reliability engineering methods (failure-mode analysis, failure-rate statistics, screening and qualification) and working across hardware,…
Added 48 mins ago
UO
Director of Academic Technology Collaborative (0089204T)
University of Hawaii
Honolulu, HI
- $103,776 to $186,806 USD / year
…participating campuses. Additionally, this position serves as the principal advisor to the Chief Academic Technology Innovation Officer and the Vice President for Academic Strategy on…
Added 58 mins ago
GE
Principal Technical Product Manager, Data & Platform
General Electric Company
United States
- $152,000 to $222,000 USD / year
As part of the GE Aerospace Digital Technology organization supporting the Defense & Systems (D&S) business, the Principal Technical Product Manager, Data & Platform owns the D&S Palantir…
Added 1 hour ago
GA
Principal Technical Product Manager, Data & Platform
GE Aerospace
Providence, RI
- $152,000 to $222,000 USD / year
As part of the GE Aerospace Digital Technology organization supporting the Defense & Systems (D&S) business, the Principal Technical Product Manager, Data & Platform owns the D&S Palantir…
Added 1 hour ago
M
FLEX Android Senior Software Engineer
Marriott
Bethesda, MD
- $48.26 to $86.58 USD / hour
You’ll collaborate with top-tier talent - including Principal Engineers, Engineering Directors, Solution Architects, Product Leads, UX Designers, QA Engineers and more - to deliver…
Added 1 hour ago
Principal Engineer Manufacturing/ 4th Shift
Northrop Grumman
Baltimore, MD
Providing Request for Proposal (RFP) input specifically as it relates to Non-Recurring Engineering (RE) requirements such as tooling, capital equipment and/or new process development
Added 1 hour ago
Principal/Senior Principal Electronics Engineer
Northrop Grumman
Baltimore, MD
Experience with Embedded Software development
Added 1 hour ago
Principal Modeling Simulation and Analysis Systems Engineer
Northrop Grumman
Baltimore, MD
As an integral member of the Modeling, Simulation and Analysis Section and the broader Systems Engineering team, you will accelerate delivery of capabilities to our customers through…
Added 1 hour ago
Chief Engineer (Staff Engineer)
Morgan Pinnacle Group
San Francisco · San Francisco, CA
6–14 years of software engineering experience, with experience operating at the Staff or Principal Engineer level.
Added 1 hour ago
Maintenance Manager - 1st Shift - $10,000 Sign On Bonus
Perdue Farms, Inc.
Lewiston Woodville, NC
…and in the communities we serve. From promoting growth and development to prioritizing work-life balance, we’re committed to helping our team members thrive. That's…
Added 2 hours ago
Principal Engineer - Digital Wealth
Citigroup
Irving, TX
Lead the development, implementation, and delivery of successful large-scale, critical and/or difficult software efforts involving significant work (can be new software or a refactor of…
Added 2 hours ago
Clinical Research Nurse
Houston Methodist
Houston, TX
…patients under the supervision of the Clinical Trials Manager and Principal Investigator. This position implements clinical research patient care via the research protocol. This position…
Added 3 hours ago
Principal Engineer, Threat Hunting
T-Mobile USA, Inc.
Bellevue, WA · Overland Park, KS · Frisco, TX
The Principal Engineer, Threat Hunter is critical to protecting T-Mobile’s digital assets, serving on the Continuous Hunting and Offensive Specialists (CHAOS) team, T-Mobile’s elite…
Added 4 hours ago
Sr. Engineer Firmware Engineering XII
Vertiv
United States
The engineer will work closely with global engineering teams supporting new product development and sustaining activities and will apply in-depth knowledge of Single Phase UPS…
Added 4 hours ago
O
Principal Core Infrastructure Engineer
Oracle
Austin, TX
- $114,600 to $234,600 USD / year
Apply AI-assisted software development lifecycle practices across design, implementation, testing, debugging, code review, documentation, and operational analysis while maintaining…
Added 5 hours ago
Principal Software Engineer - Simulation Data, Validation & Infrastructure
Irving, TX
…computing, intelligent automation, and rigorous validation. This Principal Engineer role is a hands-on technical leadership position responsible for architecture, critical implementation,…

Microsoft

Principal Software Engineer

WA, United States
Redmond, WA, United States
Redmond, United States

$142,800 to $304,200 USD / year

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Job details

Pay: $142,800 to $304,200 USD / year
Apply by: May 4, 2027
Posting language: English
Posted: Nov 5, 2026

Original job description

Overview

We are looking to welcome a Principal Software Engineer to a group of innovative, energetic and diverse engineers on the CoPilot Runtime Platform team, which is the engineering organization responsible for the foundational platform powering Microsoft 365 Copilot. We build the runtime, orchestration, data access, grounding, storage, observability, reliability, and developer infrastructure that enables AI-powered experiences across Microsoft 365. As part of the team, you will work on large-scale distributed systems, AI platform architecture, enterprise search and grounding technologies, developer frameworks, platform extensibility, reliability engineering, and next-generation Copilot experiences. Our engineers partner across Microsoft to deliver secure, scalable, and highly available AI services that serve millions of users worldwide. This role offers the opportunity to influence the future architecture of Microsoft 365 Copilot while solving challenging problems at the intersection of distributed systems, AI, search, data platforms, and cloud-scale services.

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

Partner with internal and external stakeholders to understand and incorporate user requirements and feedback into solutions.
Lead architectural discussions and design of complex products, including evaluation of multiple design options, creating proposals, making design decisions, and coaching less experienced team members. Establish and promote best coding and security practices, scaling solutions to meet performance, security, and scalability needs.
Partner with stakeholders to drive project and release planning while ensuring adherence to security, privacy, compliance, and operational considerations. Identify dependencies across teams and technologies, coordinate collaboration, and drive alignment on schedules and responsibilities.
Serve as a designated responsible individual (DRI) for live-site incident monitoring, coordination, resolution, and prevention efforts. Maintain live service operations, implement mitigations for complex issues, improve on-call processes, and promote secure operations.
Lead by example in producing extensible, maintainable, secure, well-tested code, applying coding best practices, and managing development risks. Conduct thorough code reviews ensuring adherence to standards, test coverage, security, and best practices.

Lead identification and application of AI automation, tooling and agentic approaches across the software lifecycle incorporating Responsible AI principles and SDLC engineering health measures.

Stay current with Microsoft standards, industry trends and new technologies, share knowledge, and lead learning activities. Ensure compliance with security, privacy, safety, and accessibility standards, maintain audit trails, and understand regulatory requirements.
Collaborate with partner teams to ensure integration, scalability, performance, and escalation pathways before release.

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.

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:

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 Bachelor's Degree in Computer Science or related technical field AND 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
OR equivalent experience.
Experience with AI‑native development where AI systems - not humans - perform most of the product lifecycle (research, specification, design, coding, testing), while humans provide direction, architecture, and approval. It treats AI as a core architectural assumption from day one, with continuous learning loops, probabilistic output handling, and AI‑driven pipelines.

#CAP #Copilot

Software Engineering IC5 - The typical base pay range for this role across the U.S. is USD $142,800 - $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.

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