11 defense contractor national defense jobs found in El Segundo

KBR’s National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities. In this position, your work will have a profound impact on the country’s most critical role – protecting our national security. KBR is seeking a Strategic Senior Acquisition Support Specialist with DoD 5000.85 and DoD 5000.87 and ACAT I experience to join our team in El Segundo, CA.   KBR (formerly LinQuest) is the prime contractor on the Military Satellite Communications (MILSATCOM) Systems Engineering, Integration and Test (MSEIT) contract. By applying to this position, you are in consideration for KBR employment; however, you also have the option to be hired by one of our subcontractor teammates.   You will join a Systems Engineering team defining the next generation of space communication systems supporting Space Force Military Satellite Communications. You will...

The MILSATCOM Systems Engineering, Integration, and Test (MSEIT) effort provides leading edge Systems Engineering & Integration (SE&I) for the Air Force’s Space and Missiles System Center. We support the Air Force’s acquisition of state-of-the-art Military Satellite Communications systems, providing global secure, survivable, and protected communications for our nation’s warfighters. We seek technical individuals who will thrive in a highly collaborative work environment of small teams, using the most modern tools and methodologies to tackle the challenges of integrating complex space and ground communications systems.   Why Join Us? Innovative Projects:  KBR’s work is at the forefront of engineering, logistics, operations, science, program management, mission IT and cybersecurity solutions. Collaborative Environment:  Be part of a dynamic team that thrives on collaboration and innovation, fostering a...

Title: Cyber Security Engineer Belong. Connect. Grow. with KBR! KBR’s National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities. In this position, your work will have a profound impact on the country’s most critical role – protecting our national security. KBR is seeking a Cyber Security Engineer to join our team in El Segundo, CA.  An active TS/SCI is required to be considered for this position. Why Join Us? Innovative Projects:  KBR’s work is at the forefront of engineering, logistics, operations, science, program management, mission IT and cybersecurity solutions. Collaborative Environment:  Be part of a dynamic team that thrives on collaboration and innovation, fostering a supportive and intellectually stimulating workplace. Impactful Work:  Your contributions will be pivotal in designing and...

Counterintelligence (CI) Referent - TS/SCI with Polygraph   Clearance Level Top Secret SCI + Polygraph   Category Intelligence Operations and Analysis   Location El Segundo, California (Onsite Workplace) Apply Now Key Skills For Success Counterintelligence Analysis Counterintelligence Investigations Intelligence Analysis Share REQ#:  RQ226447 Public Trust:  None Requisition Type:  Regular Your Impact Own your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country from threats. Job Description General Dynamics is seeking motivated candidates to join our insider threat detection, systems integration team. Our mission-oriented team is responsible for the design, testing, deployment, maintenance, operation,...

Mechanical Engineer Job #: R-00190204 Location: El Segundo, CA   Category: Mechanical Engineering Schedule (FT/PT): Full Time Travel Required: Yes, 25% of the time Shift: Day Remote Type: Hybrid Remote Clearance: Public Trust External Referral Program : Ineligible Sector: Digital Share: share to twitter share to facebook share to linkedin   Apply Now     Save Job         Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainable. Everything we do is built on a commitment to do the right thing for our...

Occupational Safety Health Analyst Job #: R-00179800-OTHLOC-2612 Location: El Segundo, California Category: Environmental Health And Safety Schedule (FT/PT): Full Time Travel Required: Yes, 50% of the time Shift: Day Remote Type: No Remote Clearance: Public Trust External Referral Program : Eligible Referral Bonus Amount: $1,000 Sector: Digital Modernization Share: share to twitter share to facebook share to linkedin   Apply Now     Save Job           Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainable....

Tier 2 Technician Job #: R-00175717-OTHLOC-PL-2D0822 Location: El Segundo, California Category: Network Administration and Ops Schedule (FT/PT): Full Time Travel Required: Yes, 10% of the time Shift: Day Remote Type: No Remote Clearance: Top Secret/SCI with Polygraph External Referral Program : Ineligible Sector: Digital Modernization Share: share to twitter share to facebook share to linkedin   Apply Now     Save Job         The Digital Modernization Sector at Leidos has an opening for a Tier II Network Technician  to support computer data communications systems, in providing design specifications, testing and inspections for computer networks; plan and implementing upgrades; as well as, analyzing and organizing...

Telecommunications Engineering Technician Job #: R-00179219 Location: El Segundo, California Category: Telecommunications Schedule (FT/PT): Full Time Travel Required: Yes, 75% of the time Shift: Day Remote Type: No Remote Clearance: Public Trust External Referral Program : Eligible Referral Bonus Amount: $1,000 Sector: Digital Modernization Share: share to twitter share to facebook share to linkedin   Apply Now     Save Job           The National Airspace Systems Integration Support (NISC) program at Leidos is seeking a  Telecommunications Engineering Technician  to provide support to the Federal Aviation Administration (FAA) Central Service Area - Engineering Services Group located in  El Segundo, CA . The ideal...

Enterprise Requirements and Integration Engineer Belong. Connect. Grow. with KBR! KBR’s National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities. In this position, your work will have a profound impact on the country’s most critical role – protecting our national security. KBR is seeking an Enterprise Requirements and Integration Engineer to join our team in El Segundo, CA or Colorado Springs, CO. KBR (formerly LinQuest) is the prime contractor on the MSEIT contract. You will join a systems engineering team defining the next generation of space communication systems supporting US Space Force (USSF) satellite communications. You will support Systems Engineering & Integration (SE&I) activities in a multidisciplinary and collaborative environment. You will provide senior-level enterprise systems engineering and technical leadership for...

Company Overview: Allied Universal®, North America’s leading security and facility services company, offers rewarding careers that provide you a sense of purpose. While working in a dynamic, welcoming, and collaborative workplace, you will be part of a team that contributes to a culture that positively impacts the communities and customers we serve. Security Officer - Clearance Required Full Time - $24.63 Hourly Must Have Active DoD Clearance Access Control Experience Preffered Must Be Comfortable with Technology Allied Universal® is hiring a Security Officer - Cleared (Clearance Required - Unarmed). At Allied Universal, a Cleared Security Officer is entrusted with sensitive information and given the responsibility to protect classified information and personnel. As a Cleared Security Officer, you'll receive specialized training in site-specific security protocols associated with your clearance level, allowing for skill development...

Date Posted: 2026-08-28 Country: United States of America Location: US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01 Position Role Type: Onsite What We Offer:  Medical, dental, and vision insurance   Some of our competitive benefits package includes:    • Three weeks of vacation for newly hired employees   •Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option   •Tuition program  •Student Loan Repayment Program   •Life insurance and disability coverage   •Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection  •Birth, adoption, parental leave benefits  •Ovia Health, fertility, andreimbursement family planning   •Adoption Assistance            •Autism Benefit   •Employee Assistance Plan, including up to 10 free...