Principal Software Engineer Jobs

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Principal Propulsion Engineer

SpaceX

Hawthorne, California, USA

Full-time

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. PRINCIPAL STARSHIP ENGINEER RESPONSIBILITES: Close architectural trades by leading and arbitrating interdisciplinary tradesResponsible for reporting program status and risks at a regular cadence internally and external

Grid Innovation Engineer, Principal

Pacific Gas & Electric

Oakland, California, USA

Full-time

Requisition ID # 166099 Job Category: Engineering / Science Job Level: Manager/Principal Business Unit: Electric Engineering Work Type: Hybrid Job Location: Oakland Department Overview The System Performance, Reliability and Resiliency Strategy team within the overall Electric Transmission and Distribution Engineering organization is responsible for planning, organizing, and managing the resources necessary to successfully execute PG&E's Electric Reliability Strategy and initiatives. This t

Principal Engineer - Renewable Development

Berkshire Hathaway Energy

Scottsdale, Arizona, USA

Full-time

Job Description The principal engineer - renewable development will provide highly technical engineering services and direct the work of others for the planning, design, and construction of renewable energy projects. Assignments will frequently include all project phases including overseeing and guiding staff in project development and design, resolution of complex engineering problems, design, engineering specifications, scheduling, project accounting (budgeting, estimating, forecasting, and c

Principal Engineer (Drug Product)

Regeneron Pharmaceutical

Rensselaer, New York, USA

Full-time

We are currently looking to fill a Principal Drug Product (DP) Manufacturing Science and Technology (MSAT) Engineer position. The Drug Product (DP) Manufacturing Science and Technology (MSAT) Engineer supports and/or leads equipment selection, CMO selection strategy, management of equipment qualification and/or process validation activities and will be hands-on solving issues during technology transfer and cGMP start-up. The MSAT team establishes best practices for technical support of cGMP drug

(USA) Staff, Software Engineer

Walmart Inc.

Remote or Bentonville, Arkansas, USA

Full-time

Position Summary What you'll do About Enterprise Business Services (EBS) The Enterprise Business Services (EBS) team serves as Walmart's strategic technology partner across all business verticals, powering innovative solutions that enable our business to thrive. As a core pillar of Walmart Global Tech, EBS delivers robust service operations and cutting-edge technology platforms for Finance, People, and the Associate Digital Experience, driving operational excellence at Fortune #1 scale. Our

Sr Staff Software Engineer

GE Aerospace

Evendale, Ohio, USA

Full-time

Job Description Summary This position is responsible for designing highly complex modules, critical components or a whole application/product in its entirety. Has the vision to integrate it across multiple systems. This position works independently and is seen as a technical leader. The position is responsible for driving the design and development efforts related to architecture, scalability, availability and performance in alignment with the product/application roadmap. Job Description Essent

Staff Software Engineer (DevOps/AI - Startup)

Kforce Technology Staffing

White Plains, New York, USA

Full-time

RESPONSIBILITIES: Kforce has a client that is seeking a Staff Software Engineer (DevOps/AI - Startup). This is a hybrid/flexible role based near White Plains, NY. Overview: We're partnering with a stealth-mode healthcare technology innovator focused on expanding access to affordable, high-quality care. The company has developed a patent solution that merges telehealth, diagnostics, and AI into a fully integrated, on-demand care platform. As they expand their engineering team, they are looking f

Sr. Principal Superalloys Engineer - Onsite

RTX Corporation

East Hartford, Connecticut, USA

Full-time

Date Posted: 2025-07-21 Country: United States of America Location: PW100: East Hartford 400 Main Street, East Hartford, CT, 06118 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Security Clearance: None/Not Required Pratt & Whitney is working to once again transform the future of flight-designing, building and servicing engines unlike any the world has ever seen. And because transformation begins from within, we're seeking the people to drive it.

Principal Engineer, Electronic Warfare (EW) Architecture

Analog Devices, Inc.

Wilmington, Massachusetts, USA

Full-time

About Analog Devices Analog Devices, Inc. (NASDAQ: ADI ) is a global semiconductor leader that bridges the physical and digital worlds to enable breakthroughs at the Intelligent Edge. ADI combines analog, digital, and software technologies into solutions that help drive advancements in digitized factories, mobility, and digital healthcare, combat climate change, and reliably connect humans and the world. With revenue of more than $9 billion in FY24 and approximately 24,000 people globally, ADI

Senior Principal Engineer - Solid Propulsion

RTX Corporation

Tucson, Arizona, USA

Full-time

Date Posted: 2025-06-06 Country: United States of America Location: AZ802: RMS AP Bldg 802 1151 East Hermans Road Building 802, Tucson, AZ, 85756 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our nation and

Senior Principal Engineer, Electro-mechanical Controls (Onsite)

RTX Corporation

Windsor, Connecticut, USA

Full-time

Date Posted: 2025-06-19 Country: United States of America Location: 01: Building 01 Windsor Locks One Hamilton Road, Windsor Locks, CT, 06096 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance: DoD Clearance: Secret Collins Aerospace's Power & Controls team is looking for a Senior Principal Engineer to play a pivotal role in advancing our Ele

Principal Engineer - Charging Systems

T-Mobile

Washington, USA

Full-time

At T-Mobile, we invest in YOU! Our Total Rewards Package ensures that employees get the same big love we give our customers. All team members receive a competitive base salary and compensation package - this is Total Rewards. Employees enjoy multiple wealth-building opportunities through our annual stock grant, employee stock purchase plan, 401(k), and access to free, year-round money coaches. That's how we're UNSTOPPABLE for our employees! Job Overview The System Architecture Engineer's role i

Lead Software Engineer - Java/Springboot/AWS

JPMorgan Chase & Co.

Wilmington, Delaware, USA

Full-time

Job Description We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Lead Software Engineer - Java/Springboot/AWS at JPMorgan Chase within the Payments Technology team, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. As a core technical contributor, you are responsible for conducting critical technology sol

Lead Software Engineer - Python, CI/CD, AWS

JPMorgan Chase & Co.

Houston, Texas, USA

Full-time

Job Description We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Lead Software Engineer at JPMorgan Chase within the Corporate Sector, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. As a core technical contributor, you are responsible for conducting critical technology solutions across multiple technic

Principal Mechanical Engineer

PSEG

Lower Alloways Creek, New Jersey, USA

Full-time

Job Number: 7035 External Description: PRINCIPAL MECHANICAL ENGINEER - NUCLEAR Job Summary The Principal Nuclear Engineer- Mechanical in Engineering Services provides governance and oversight for multiple mechanical component activities at Salem and Hope Creek Generating Stations. The Corporate Mechanical Engineer will be a Subject Matter Expert and will ensure industry leading performance via a robust Preventative Maintenance program and Long-Term Asset Management Strategies benchmarked agains

Senior Principal Hardware Production Support Engineer

RTX Corporation

Tewksbury, Massachusetts, USA

Full-time

Date Posted: 2025-07-17 Country: United States of America Location: MA131: Tewksbury, MA Bldg 1 Assabet 50 Apple Hill Drive Assabet - Building 1, Tewksbury, MA, 01876 USA Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance: DoD Clearance: Secret At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help

Principal Engineer, Design Engineering (Hybrid)

RTX Corporation

Remote or Aguadilla, Aguadilla, Puerto Rico

Full-time

Date Posted: 2025-05-27 Country: United States of America Location: PW222: PW Puerto Rico Road 110 North Km28.8 San Antonio Industrial Park, Aguadilla, PR, 00603 USA Position Role Type: Hybrid U.S. Citizen, U.S. Person, or Immigration Status Requirements: Security Clearance: None/Not Required Pratt & Whitney is working to once again transform the future of flight-designing, building and servicing engines unlike any the world has ever seen. And because transformation begins from within, we're s

Staff, Software Engineer, Front End

Walmart Inc.

Sunnyvale, California, USA

Full-time

Position Summary What you'll do Job Description *Immigration sponsorship is not available in this role.* We are seeking a highly skilled and motivated individual to join our team as a Staff,Software Engineer. In this role, you will be playing a pivotal role in designing, developing, and implementing solutions that solve mission critical business problems and support Walmart marketplace growth. About Team: Our team works closely with our US stores and eCommerce business to better serve custo

Lead Software Engineer - AWS, PySpark, Databricks

JPMorgan Chase & Co.

Columbus, Ohio, USA

Full-time

Job Description We have an opportunity to impact your career and provide an adventure where you can push the limits of what's possible. As a Lead Software Engineer at JPMorgan Chase within the Corporate Technology Workforce Data Analytics team, you play a crucial role in an agile team dedicated to enhancing, building, and delivering trusted, market-leading technology products that are secure, stable, and scalable. As a key technical contributor, you are tasked with implementing critical techno

Principal Engineer

Constellation Energy

Everett, Massachusetts, USA

Full-time

WHO WE ARE As the nation's largest producer of clean, carbon-free energy, Constellation is focused on our purpose: accelerating the transition to a carbon-free future. We have been the leader in clean energy production for more than a decade, and we are cultivating a workplace where our employees can grow, thrive, and contribute. Our culture and employee experience make it clear: We are powered by passion and purpose. Together, we're creating healthier communities and a cleaner planet, and our