"Senior Principal Systems Engineer" Jobs in United States

Senior Principal Systems Engineer

AST SpaceMobile · Lanham

AST SpaceMobile is building the first and only global cellular broadband network in space to operate directly with standard, unmodified mobile devices based on our extensive IP and patent portfolio and designed for both

Senior Principal Systems Engineer

SAIC · San Diego

SAIC is seeking a Senior Principal Systems Engineer to support the Tactical Networks (TACNET) Capabilities Based in Service Engineering Agent (CB-ISEA). This is a Hybrid/Remote role in San Diego, CA. MUST BE LOCAL TO ARE

Systems Engineer Senior Principal

SAIC · California

SAIC is seeking a highly experienced Lead Systems Engineer (Senior Principal) to support the PMA234 Airborne Electronic Attack (AEA) Systems Program Office, providing direct engineering expertise to the one of several pr

Senior Principal Systems Engineer

Northrop Grumman ·

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible oppor

Senior Principal Systems Engineer - Weapons and Energetics

General Dynamics Mission Systems, Inc · Fort Wayne

Education Requirements: Bachelor's degree in Engineering, plus a minimum of 10 years of relevant experience; or Master's degree in Engineering, plus a minimum of 8 years of relevant experience. Clearance Requirements:

Sentinel - Principal / Senior Principal Systems Engineer - 18044

Northrop Grumman ·

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportuni

Infrastructure Solutions Group (ISG) builds the products that power infrastructure, solutions, and data management our customers need most. Our teams design and develop the hardware and software that connect infrastructu

Senior Principal Systems Engineer – Electronic Warfare (EW) Systems

Northrop Grumman ·

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportuni

Senior Principal Systems Engineer - Surveillance Radar (Onsite)

RTX · Marlborough

Date Posted: 2026-10-26 Country: United States of America Location: US-MA-MARLBOROUGH-MA3 ~ 1001 Boston Post Rd ~ BLDG 3 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: U.S. citi

Senior Principal Systems Engineer - State Estimation and Target Tracking

Northrop Grumman ·

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportuni

Senior Principal Systems Engineer (Level 4)

Northrop Grumman ·

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportuni

Principal Engineer Systems - Payloads Field Service / Senior Principal Engineer Systems - Payloads Field Service (Mayfield FL)

Northrop Grumman ·

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 25% of the Time Description At Northrop Grumman, our employees have incredible opportuni

Senior Principal Systems Engineer, Surveillance Radar Program Tech Lead

RTX · Woburn

Date Posted: 2026-10-09 Country: United States of America Location: US-MA-WOBURN-WB2 ~ 225 Presidential Way ~ GODDARD BLDG Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active

Principal / Senior Principal Systems Engineer

Northrop Grumman ·

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportuni

Senior Principal Systems Engineer – Space Missions

Northrop Grumman ·

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible oppor