Defense Contractor/ National Defense jobs in Santa Clara, CA

Oct 01, 2026

Full time

$114,800 - $172,200 yearly

KBR Santa Clara, CA

Title: O&M Site Lead (Contingency) Belong, Connect, Grow, with KBR! Program Summary KBR’s Exploration & Logistics (E&L) business unit delivers mission-critical solutions supporting global defense, federal civilian, logistics, engineering, and space exploration missions. E&L provides integrated capabilities across logistics and sustainment, mission operations, engineering services, readiness and modernization programs, scientific research support, and exploration initiatives in some of the world’s most complex and challenging environments. The business unit supports customers across the Department of Defense, federal civilian agencies, and commercial partners, delivering innovative solutions that enhance mission readiness, operational effectiveness, and long-term mission success. Job Summary The Operations & Maintenance (O&M) Site Lead is responsible for coordinating daily site operations and maintenance activities to ensure the safe, reliable,...

Oct 01, 2026

Full time

Software Engineer - Real-Time Geospatial Mapping for Planetary Exploration

$145,000 - $230,900 yearly

KBR Mountain View, CA

Title: Software Engineer - Real-Time Geospatial Mapping for Planetary Exploration BELONG. CONNECT. GROW. with KBR. Around here, we define the future. We are a company of innovators, thinkers, creators, explorers, volunteers, and dreamers. But we all share one goal: to improve the world responsibly and safely. Description of work effort: Join NASA Ames writing software to help explore the moon! Help us meet the emerging needs of Artemis, Commercial Lunar Payload Services (CLPS) and future Moon-to-Mars missions. Looking for a software engineer to assist with development of two coordinated work efforts: M2M CSDS - the Moon to Mars Collaborative Science Data System WITME - Web-Based Integrated Terrain Model Estimation tool These tools provide a reusable, science-centric collaboration platform that enables distributed science teams to collectively visualize, analyze, and interpret mission data in support of time-critical decision making. They will prototype capability...

Oct 01, 2026

Full time

Software Engineer - Real-Time Geospatial Mapping for Planetary Exploration

$145,000 - $230,900 yearly

KBR Mountain View, CA

Title: Software Engineer - Real-Time Geospatial Mapping for Planetary Exploration BELONG. CONNECT. GROW. with KBR. Around here, we define the future. We are a company of innovators, thinkers, creators, explorers, volunteers, and dreamers. But we all share one goal: to improve the world responsibly and safely. Description of work effort: Join NASA Ames writing software to help explore the moon! Help us meet the emerging needs of Artemis, Commercial Lunar Payload Services (CLPS) and future Moon-to-Mars missions. Looking for a software engineer to assist with development of two coordinated work efforts: M2M CSDS - the Moon to Mars Collaborative Science Data System WITME - Web-Based Integrated Terrain Model Estimation tool These tools provide a reusable, science-centric collaboration platform that enables distributed science teams to collectively visualize, analyze, and interpret mission data in support of time-critical decision making. They will prototype capability...

Aug 24, 2026

Full time

Senior Supervisor, Field Engineering (Sacramento, CA)

$67,000 - $1,141,500 yearly

L3Harris Fremont, CA

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title: Senior Supervisor, Field Engineering (Sacramento, CA) Job Code: 42980 Job Location: Sacramento , CA and Surrounding Area Job Schedule: 5/8 Job Description: L3Harris Technologies is looking for a Supervisor in the Company’s...

Sep 20, 2026

Full time

Unarmed Security Officer San Francisco

$40.00 hourly

Triple Canopy San Francisco, CA

This position is up and coming for a new contract. We are currently collecting applicants for interviews to be held in August. POSITION SUMMARY Provide professional, high-level unarmed security services for the personnel, visitors, and property of various buildings within the California Bay Area. Work locations include Mission Bay, South San Francisco, San Carlos, and Palo Alto. shifts in a specific building will not be guaranteed. PAY TRANSPARENCY/COMPENSATION Rate of Pay: $40.00/hr Paid training for 1.5 weeks at a full hourly rate RESPONSIBILITIES Provide security for various buildings by conducting perimeter security, internal security, threat monitoring , etc. Protect personnel and property in a professional manner Meet and deal tactfully and politely with general public and visitors Effectively and efficiently screen and process visitors as required Identify, report, delay or detain persons who violate...

Oct 01, 2026

Full time

Senior Operations Research/Data Science

KBR Monterey, CA

Title: Senior Operations Research/Data Science 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. 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 optimizing defense systems that ensure national security and shape the future of space defense. Come join the ITEA award winning TRMC BDKM team and be a part of the team responsible...

Sep 01, 2026

Full time

Activity Security Representative (ASR) II- Fairfield

$90,525 - $122,475 yearly

General Dynamics Information Technology Fairfield, CA

Activity Security Representative (ASR) II Clearance Level Top Secret/SCI Category Security Operations Location Fairfield, California (Onsite Workplace) Apply Now Key Skills For Success Facility Security Physical Security System Security Share REQ#: RQ225542 Public Trust: None Requisition Type: Regular Your Impact Own your opportunity to support our nation's defense. Make an impact by connecting and securing critical operations across the globe, keeping our country safe and secure. Job Description The Activity Security Representative (ASR) II's primary function is to provide multi-disciplined security support to a customer’s facility and organization. The position will provide “day-to-day” support for Collateral, Sensitive Compartmented Information (SCI) and Special Access...

Sep 01, 2026

Full time

Switch Technician with a Cisco Certified Network Associate (CCNA) Travis AFB

$38.75 hourly

Bowhead Fairfield, CA

Switch Technician with a Cisco Certified Network Associate (CCNA) ID 2026-25884 Category Telecommunications Location : Location US-CA-Travis AFB SCA Hourly Rate USD $38.75/Hr. Clearance Level Must Be Able to Obtain Public Trust (NAC) Minimum Clearance Required Public Trust (NAC) Travel Requirement Less than 10% Overview Switch Technician with a Cisco Certified Network Associate (CCNA) (TAFB-2026-25884): Bowhead seeks a Switch Technician with a Cisco Certified Network Associate (CCNA) certification to support the Base Telecommunications System (BTS) contract at Travis Air Force Base, California. This position plays a critical role in maintaining the newly installed Cisco Unified Communications Manager (CUCM) supporting David Grant Medical Center and the surrounding hospital campus....

Sep 01, 2026

Full time

SCA Telecommunications Mechanic II- Travis AFB

$38.75 hourly

Bowhead Fairfield, CA

SCA Telecommunications Mechanic II ID 2026-24775 Category Telecommunications Location : Location US-CA-Travis AFB SCA Hourly Rate USD $38.75/Hr. Clearance Level Must Be Able to Obtain Public Trust (NAC) Minimum Clearance Required Public Trust (NAC) Travel Requirement Less than 10% Overview Telecommunications Mechanic II (TAFB-2026-24775): Bowhead seeks a skilled Telecommunications Mechanic II to provide full-spectrum installation, maintenance, and repair support for the Base Telecommunications System (BTS) at Travis AFB. This position plays a critical role in ensuring uninterrupted mission-essential communications for base operations, medical facilities, and tenant organizations. The Telecommunications Mechanic II will support Outside Plant (OSP) and Inside Plant...

Sep 26, 2026

Full time

Senior Specialist, Mechanical Engineer

$102,000 - $189,000 yearly

L3Harris Sacramento, CA

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title: Senior Specialist, Mechanical Engineer – Design Job Code: 40433 Job Location: Huntsville, AL or Sacramento, CA; On-site Job Schedule: 9/80: Employees work 9 out of every 14 days- totaling 80 hours worked- and have every other...

Sep 26, 2026

Full time

Oracle EBS Functional Analyst,

$84,000 - $178,000 yearly

L3Harris Sacramento, CA

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title: Senior Specialist, IT Business Analysis / Oracle EBS Functional Analyst (HCM & OTL) Job Code: 42110 Job Location: Sacramento, CA; or Canoga Park, CA; or Salt Lake City, UT; or Rochester, NY; or Melbourne, FL Job Schedule:...

Sep 26, 2026

Full time

Lead, Electromechanical Actuation System Design Engineer

$122,000 - $227,000 yearly

L3Harris Sacramento, CA

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title: Lead, Electrical/Mechanical Engineering Job Code: 42260 Job Location: Canoga Park, CA (Preferred) or Sacramento, CA or Huntsville, AL Job Schedule: 9/80: Employees work 9 out of every 14 days – totaling 80 hours worked –...

Sep 26, 2026

Full time

Senior Specialist, Aerospace Engineer (Thermal Analysis)

$102,000 - $189,000 yearly

L3Harris Sacramento, CA

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title: Senior Specialist, Aerospace Engineer- Thermal Analysis Job Code: 42831 Job Location : Huntsville, AL or Sacramento, CA Job Schedule: 9/80: Employees work 9 out of every 14 days – totaling 80 hours worked – and have every...

Sep 21, 2026

Full time

Lead, Systems Engineer- Control Systems Analysis

$127,500 - $236,500 yearly

L3Harris Sacramento, CA

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title: Lead, Systems Engineer - Control Systems Analysis Job Code: 42123 Job Location: Huntsville, AL or Sacramento, CA Job Schedule: 9/80: Employees work 9 out of every 14 days – totaling 80 hours worked – and have every other...

Sep 21, 2026

Full time

Lead, Mechanical Engineering

$146,000 - $271,000 yearly

L3Harris Sacramento, CA

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do. L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security. Job Title: Lead, Mechanical Engineering Job Code: 39994 Job Location: Sacramento, CA Job Schedule: 9/80: Employees work 9 out of every 14 days- totaling 80 hours worked- and have every other Friday off Job Description: L3Harris...

Sep 01, 2026

Full time

General Ledger Accountant- Rancho Cordova

$47 - $55 yearly

Butler Aerospace and Defense Rancho Cordova, CA

General Ledger Accountant Admin/Clerical Rancho Cordova, CA true Aug 17, 2026 General Ledger Accountant - Part Time Location: Rancho Cordova, CA Job ID: #72857 Duration: 6+ months contract Pay Range: $47-55 **U.S. Citizenship Only, no dual citizenship* * Job Description: The Specialist, General Ledger Accounting will report to the Manager, General Accounting and will be part of the team responsible for providing rapid and high-quality financial information. This position addresses a multitude of accounting activities including monthly general ledger and overhead closings, balance sheet and income statement flux analysis, quarterly review and year-end audit preparation and SOX processes under tight close and reporting deadlines. Essential Functions: Supporting monthly financial close and reporting, including: Preparing monthly journal entries, including entries related to sub-ledger postings (Accounts Receivable,...

16 jobs found in Santa Clara, CA