Browse Jobs
Browse fresh roles from company career pages, then filter by keyword, location, salary, skills, remote scope, and more. Each listing links back to the employer-controlled apply path when available.
403 jobs match your filters
2w
R
Principal Systems Engineer - Infrastructure (Onsite)
RTX
Date Posted: 2026-05-28

 Country: United States of America Location: US-TX-RICHARDSON-C17 ~ 1717 Cityline Dr ~ CITYLINE C17 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government iss
US-TX-RICHARDSON-C17 ~ 1717 Cityline Dr ~ CITYLINE C17
onsiteFull-time
2w
R
Principal Systems Engineer, String Engineer Onsite
RTX
Date Posted: 2026-05-28
 Country: United States of America
 Location: US-MA-WOBURN-WB1 ~ 235 Presidential Way ~ SPENCER BLDG Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security
US-MA-WOBURN-WB1 ~ 235 Presidential Way ~ SPENCER BLDG
onsiteFull-time
2w
R
Principal Systems Engineer - (Onsite)
RTX
Date Posted: 2026-05-27 Country: United States of America Location: US-TX-RICHARDSON-462 ~ 3200 E Renner Rd ~ RENNER BLDG 462 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearan
US-TX-RICHARDSON-462 ~ 3200 E Renner Rd ~ RENNER BLDG 462
onsiteFull-time
2w
R
Principal Systems Engineer - (Onsite)
RTX
Date Posted: 2026-05-27
 Country: United States of America
 Location: US-FL-LARGO-382SR ~ 7887 Bryan Dairy Rd ~ BLDG 600 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
US-FL-LARGO-382SR ~ 7887 Bryan Dairy Rd ~ BLDG 600
onsiteFull-time
2w
R
Principal Systems Engineer (Onsite)
RTX
Date Posted: 2026-05-27 Country: United States of America Location: US-VA-STERLING-291 ~ 22640 Davis Dr ~ DAVIS 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
US-VA-STERLING-291 ~ 22640 Davis Dr ~ DAVIS
onsiteFull-time
2w
R
Principal Systems Engineer (Onsite)
RTX
Date Posted: 2026-05-27 Country: United States of America Location: US-VA-STERLING-291 ~ 22640 Davis Dr ~ DAVIS 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
US-VA-STERLING-291 ~ 22640 Davis Dr ~ DAVIS
onsiteFull-time
2w
R
Principal Systems Engineer (Onsite)
RTX
Date Posted: 2026-05-27 Country: United States of America Location: US-TX-RICHARDSON-461 ~ 3200 E Renner Rd ~ RENNER BLDG 461 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearan
US-TX-RICHARDSON-461 ~ 3200 E Renner Rd ~ RENNER BLDG 461
onsiteFull-time
3w
R
Principal Systems Engineer (Modeling & Simulation)
RTX
Date Posted: 2026-05-22 Country: United States of America Location: US-MA-TEWKSBURY-TB3 ~ 50 Apple Hill Dr ~ CONCORD BLDG, Tewksbury Tb3 300 Concord Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government
US-MA-TEWKSBURY-TB3 ~ 50 Apple Hill Dr ~ CONCORD BLDG, Tewksbury Tb3 300 Concord
onsiteFull-time
3w
N
Principal Systems Engineer - Client Development
Ngc
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 opportunities to work on revolutionary systems that impac
United States-California-San Diego
hybridFull-time
3w
R
Principal Systems Engineer – Radar Systems Development and Integration Onsite
RTX
Date Posted: 2026-05-20 Country: United States of America Location: US-RI-PORTSMOUTH-PS1 ~ 1847 W Main Rd ~ NIMITZ BLDG Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is
US-RI-PORTSMOUTH-PS1 ~ 1847 W Main Rd ~ NIMITZ BLDG
onsiteFull-time
3w
R
Principal Systems Engineer, Site Lead, AN/TPY-2
RTX
Date Posted: 2026-05-20 Country: United States of America Location: US-NM-WHITE SANDS-LC38 ~ Bldg. 23626, LC-38 Nike Ave ~ BLDG LC38 (External Site) Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government
US-NM-WHITE SANDS-LC38 ~ Bldg. 23626, LC-38 Nike Ave ~ BLDG LC38 (External Site)
onsiteFull-time
3w
R
Principal Systems Engineer: Solid State Transmitter Integration & Test Lead
RTX
Date Posted: 2026-05-20 Country: United States of America Location: US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is requ
US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805
onsiteFull-time
3w
R
Principal Systems Engineer - Software Systems
RTX
Date Posted: 2026-05-19 Country: United States of America Location: US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is requ
US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805
onsiteFull-time
3w
R
Principal Systems Engineer – Product Safety (ARP4761 or MIL-STD-882E experience required)
RTX
Date Posted: 2026-05-19 Country: United States of America Location: US-IA-CEDAR RAPIDS-121 ~ 350 Collins Rd NE ~ BLDG 121 Position Role Type: Remote U.S. Citizen, U.S. Person, or Immigration Status Requirements: This job requires a U.S. Person. A U.S. Person is a lawful permanen
US-IA-CEDAR RAPIDS-121 ~ 350 Collins Rd NE ~ BLDG 121
onsiteFull-time
3w
R
Principal Systems Engineer, Systems Verification Engineer Onsite
RTX
Date Posted: 2026-05-19 Country: United States of America Location: US-MA-WOBURN-WB1 ~ 235 Presidential Way ~ SPENCER BLDG Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance
US-MA-WOBURN-WB1 ~ 235 Presidential Way ~ SPENCER BLDG
onsiteFull-time
3w
R
Principal Systems Engineer - Agile Solution Train Engineer (Onsite)
RTX
Date Posted: 2026-05-19 Country: United States of America Location: US-AZ-TUCSON-810 ~ 1151 E Hermans Rd ~ BLDG 810 (External Site) Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security c
US-AZ-TUCSON-810 ~ 1151 E Hermans Rd ~ BLDG 810 (External Site)
onsiteFull-time
3w
R
Principal Systems Engineer – Product Safety (Hybrid - Cedar Rapids, IA; Windsor Locks, CT; Burnsville, MN; Rockford, IL; Wilsonville,OR; or Melbourne, FL)
RTX
Date Posted: 2026-05-19 Country: United States of America Location: US-IA-CEDAR RAPIDS-121 ~ 350 Collins Rd NE ~ BLDG 121 Position Role Type: Hybrid U.S. Citizen, U.S. Person, or Immigration Status Requirements: This job requires a U.S. Person. A U.S. Person is a lawful permanen
US-IA-CEDAR RAPIDS-121 ~ 350 Collins Rd NE ~ BLDG 121
onsiteFull-time
3w
Principal Systems Engineer (Requirements & Defect Manager)
Cerence AI
A Moving Experience. Requirements: Support the software project in technical clarification, breakdown and tracking of requirements, e.g. transform customer requirements to internal software requirements Track the end to end progress of the software requirements and defect from
Ulm
onsiteFull-time
3w
R
Principal Systems Engineer - Munitions Acceleration Team (Onsite)
RTX
Date Posted: 2026-05-18 Country: United States of America Location: US-AZ-TUCSON-807 ~ 1151 E Hermans Rd ~ BLDG 807 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is requ
US-AZ-TUCSON-807 ~ 1151 E Hermans Rd ~ BLDG 807
onsiteFull-time
3w
R
Principal Systems Engineer – EO/IR or RF Signal Processing
RTX
Date Posted: 2026-05-18 Country: United States of America Location: US-AZ-TUCSON-849 ~ 1151 E Hermans Rd ~ BLDG 849 (External Site) Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security c
US-AZ-TUCSON-849 ~ 1151 E Hermans Rd ~ BLDG 849 (External Site)
onsiteFull-time
1mo
R
Principal Systems Engineer - (Onsite)
RTX
Date Posted: 2026-05-15 Country: United States of America Location: US-FL-LARGO-382SS ~ 7887 Bryan Dairy Rd. ~ BLDG 100 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is
US-FL-LARGO-382SS ~ 7887 Bryan Dairy Rd. ~ BLDG 100
onsiteFull-time
1mo
R
Principal Systems Engineer - Air Traffic Solutions (Onsite)
RTX
Date Posted: 2026-05-14 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: The ability to obtain and maintain a U.S. government issued security
US-MA-MARLBOROUGH-MA3 ~ 1001 Boston Post Rd ~ BLDG 3
onsiteFull-time
1mo
Principal Systems Engineer - Future Products
MBDA
As a Future Products Principal Systems Engineer within the newly formed Future Products department; part of Missile Design UK: Emerging Portfolio & Capability function, you will be assigned to take on a variety of roles in support of MBDA’s Vision 2040. Salary: Circa £55,000 dep
Bristol
remoteFull-time
1mo
R
Principal Systems Engineer- Air Defense Systems
RTX
Date Posted: 2026-05-13 Country: United States of America Location: US-MA-TEWKSBURY-TB3 ~ 50 Apple Hill Dr ~ CONCORD BLDG, Tewksbury Tb3 300 Concord Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government
US-MA-TEWKSBURY-TB3 ~ 50 Apple Hill Dr ~ CONCORD BLDG, Tewksbury Tb3 300 Concord
onsiteFull-time
1mo
R
Principal Systems Engineer, Digital Radar Onsite
RTX
Date Posted: 2026-05-12 Country: United States of America Location: US-AL-HUNTSVILLE-401 ~ 401 Jan Davis Dr NW ~ JAN DAVIS 401 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security cleara
US-AL-HUNTSVILLE-401 ~ 401 Jan Davis Dr NW ~ JAN DAVIS 401
onsiteFull-time