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
3w
Principal Systems Engineer
Odyssey
Odyssey Systems has an exciting opportunity for a Principal System Engineer providing support to the Air Force Life Cycle Management Center-Ground Base Air Defense Sensor division (AFLCMC/ESG). The ESG Division manages efforts focused on developing, acquiring, fielding and sus
Hanscom AFB, MA, US
onsite
3w
Principal Systems Engineer
MaxLinear
MaxLinear is seeking a Principal Systems Engineer to join our team. In this role, you will focus on the following: - Leading cross-functional debug and validation efforts for optical modules, Active Electrical Cables (AECs), and solutions for data center applications, including
Carlsbad, CA, US
remote
3w
Principal Systems Engineer
GliaCell Technologies
***An active or rein-statable TS/SCI with Polygraph security clearance is REQUIRED. Please do not apply if you currently do not possess this level of clearance.*** Are you a Principal Systems Engineer who is ready for a new challenge that will launch your career to the next level
Annapolis Junction, MD
onsiteEasy Apply
3w
Principal Systems Engineer
GliaCell Technologies
***An active or rein-statable TS/SCI with Polygraph security clearance is REQUIRED. Please do not apply if you currently do not possess this level of clearance.*** Are you a Principal Systems Engineer who is ready for a new challenge that will launch your career to the next level
Annapolis Junction, MD
onsiteEasy Apply
3w
Principal Systems Engineer
GliaCell Technologies
***An active or rein-statable TS/SCI with Polygraph security clearance is REQUIRED. Please do not apply if you currently do not possess this level of clearance.*** Are you a Principal Systems Engineer who is ready for a new challenge that will launch your career to the next level
Annapolis Junction, MD
onsiteEasy Apply
3w
Principal Systems Engineer
Lunar Outpost
Are you passionate about shaping the future of humanity's presence in space? Lunar Outpost, a trailblazer in space robotics, invites you to join our team! Lunar Outpost is dedicated to creating a sustainable presence in space, while also driving a positive impact here on Earth. W
Golden, Colorado
onsiteFull-timeEasy Apply
2d
R
Principal Systems Engineer, Infrastructure (Hybrid - Aguadilla, PR)
RTX
Date Posted: 2026-06-12 Country: United States of America Location: US-PR-AGUADILLA-110 ~ Rd 110 N Km 28.8 ~ RD110 Position Role Type: Hybrid U.S. Citizen, U.S. Person, or Immigration Status Requirements: U.S. citizenship is required, as only U.S. citizens are authorized to acces
US-PR-AGUADILLA-110 ~ Rd 110 N Km 28.8 ~ RD110
onsiteFull-timeNew
3d
N
Principal Systems Engineer - F35 Project Engineer
Ngc
RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: No CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people'
United States-California-Redondo Beach
hybridFull-time
3d
R
Principal Systems Engineer – NC3 Programs (Onsite)
RTX
Date Posted: 2026-06-11

 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 securi
US-TX-RICHARDSON-461 ~ 3200 E Renner Rd ~ RENNER BLDG 461
onsiteFull-time
3d
N
Principal Systems Engineer / Sr. Principal Systems Engineer
Ngc
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 opportunities to work on revolutionary systems that impact pe
United States-Florida-Melbourne
hybridFull-time
3d
N
Principal Systems Engineer / Sr. 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 opportunities to work on revolutionary systems that impact people
Melbourne, FL, US
remote
4d
Principal Systems Engineer (Investment Services)
Navy Federal Credit Union
The Principal Systems Engineer provides senior technical leadership and hands on systems engineering expertise in support of the Navy Federal Financial Group portfolio.
Vienna, VA, United States
hybrid
5d
N
Principal Systems Engineer - Tech Baseline RE
Northrop Grumman
RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: No CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people'
San Diego, CA, US
hybrid
5d
R
Principal Systems Engineer- Active Clearance
RTX
Date Posted: 2026-06-09

 Country: United States of America Location: US-CA-EL SEGUNDO-E04 ~ 2006 E El Segundo Blvd ~ BLDG E04 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued securit
US-CA-EL SEGUNDO-E04 ~ 2006 E El Segundo Blvd ~ BLDG E04
onsiteFull-time
5d
N
Principal Systems Engineer - Tech Baseline RE
Ngc
RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: No CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact peo
United States-California-San Diego
hybridFull-time
6d
R
Principal Systems Engineer – Software Systems (Onsite)
RTX
Date Posted: 2026-06-08

 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 clearan
US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805
onsiteFull-time
6d
R
Principal Systems Engineer - Graphical Flight Planning (Onsite)
RTX
Date Posted: 2026-06-08

 Country: United States of America Location: US-IA-CEDAR RAPIDS-121 ~ 350 Collins Rd NE ~ BLDG 121 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: This job requires a U.S. Person. A U.S. Person is a lawfu
US-IA-CEDAR RAPIDS-121 ~ 350 Collins Rd NE ~ BLDG 121
onsiteFull-time
6d
R
Principal Systems Engineer, Radar Data Analysis - LTAMDS
RTX
Date Posted: 2026-06-08

 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 secur
US-AL-HUNTSVILLE-401 ~ 401 Jan Davis Dr NW ~ JAN DAVIS 401
onsiteFull-time
6d
R
Principal Systems Engineer (Onsite)
RTX
Date Posted: 2026-06-08

 Country: United States of America Location: US-CA-GOLETA-H01 ~ 6380 Hollister Ave ~ BLDG H01 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security cleara
US-CA-GOLETA-H01 ~ 6380 Hollister Ave ~ BLDG H01
onsiteFull-time
6d
N
Principal Systems Engineer (Tool Integrator) (26-159)
Ngc
RELOCATION ASSISTANCE: No relocation assistance available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time Description At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people
United States-Colorado-Colorado Springs
onsiteFull-time
1w
Principal Systems Engineer (Networks)
Leonardo
Job Description: Your impact Do you want to grow your career in network engineering and work on projects that safeguard the UK’s national interests? At Leonardo, our Network Engineers are at the heart of designing, configuring, and supporting secure networks that keep our cust
GB - Southampton
onsiteFull-time
1w
Principal Systems Engineer Specialist
Jobgether
How Jobgether works: We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring co
US
remoteFull-timeEasy Apply
1w
R
Principal Systems Engineer, Sustainment Tech Lead Onsite
RTX
Date Posted: 2026-06-04

 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
1w
R
Principal Systems Engineer (ONSITE)
RTX
Date Posted: 2026-06-04

 Country: United States of America Location: US-MA-MARLBOROUGH-MA2 ~ 1001 Boston Post Rd ~ BLDG 2 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security cl
US-MA-MARLBOROUGH-MA2 ~ 1001 Boston Post Rd ~ BLDG 2
onsiteFull-time
1w
N
Principal Systems Engineer - Engineering Investigation and Technical Directive Letter Implementation
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 opportunities to work on revolutionary systems that impact people
San Diego, CA, US
hybrid