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Sci Clearance Jobs In Walnut, California - 201 Job Positions Available

1 – 20 of 201 jobs
APR Consulting jobs

A Construction Escorts with Active TS/SCI Clearance just opened up at JPL/NASA in Pasadena, CA. In this role you will be responsible for accompanying and monitoring workers or visitors who do not have authorized access to certain construction

APR Consulting  3 days ago
Falken Industries LLC jobs

Description In this role, you will provide Armed Physical Security to a designated site to protect information and personnel. You will work as a member of a team of armed security officers and report to the

Falken Industries LLC  26 days ago
Contact Government Services jobs

Legal Clerical Worker Employment Type: Full-Time, Mid-Level Department: Administrative CGS is seeking a dedicated clerical worker to join a fast-paced and hard-working team to assist with any legal accounts. As a Legal clerical Worker, you will

Contact Government Services  25 days ago
K2 Space jobs

K2 is building the largest and highest-power satellites ever flown, unlocking performance levels previously out of reach across every orbit. Backed by $450M from leading investors including Altimeter Capital, Redpoint Ventures, T. Rowe Price, Lightspeed Venture

K2 Space  22 days ago
K2 Space jobs

K2 is building the largest and highest-power satellites ever flown, unlocking performance levels previously out of reach across every orbit. Backed by $450M from leading investors including Altimeter Capital, Redpoint Ventures, T. Rowe Price, Lightspeed Venture

K2 Space  22 days ago
ManTech jobs

General information Requisition # R68982 Locations USA-CA-Los Angeles Posting Date 06/26/2026 Security Clearance Required TS/SCI Remote Type Onsite Time Type Full time Description & Requirements Shape the future of defense with MANTECH! Join a team dedicated to safeguarding

ManTech  3 days ago

Comsec Manager (Cro) (Ts//Sci) Los Angeles, CA K2 is building the largest and highest-power satellites ever flown, unlocking performance levels previously out of reach across every orbit. Backed by $450M from leading investors including Altimeter Capital, Redpoint

K2 Space  3 days ago
ManTech jobs

MANTECH seeks a motivated, career and customer-oriented SCI Security Specialist II to join our team in El Segundo, CA. The SCI Security Specialist’s primary function is to serve as a senior security specialist under supervision of the local

ManTech  4 hours ago
OMNI Consulting Solutions jobs

Location: Seal Beach, CA (On-site) Travel: Occasional travel to California and New Mexico integration sites Clearance: Active TS/SCI with Polygraph Required U.S. Citizen required Position Overview OMNI is seeking a Satellite Systems Software Engineer to support a cutting-edge

OMNI Consulting Solutions  29 days ago
Northrop Grumman jobs

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time DescriptionAt Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact peoples lives

Northrop Grumman  28 days ago
Turion Space jobs

Turion Space is seeking a talented Satellite Guidance, Navigation, and Controls (GNC) Engineer to join our team on a hybrid basis in Irvine, CA. As a GNC Engineer, you will play a key role in the

Turion Space  27 days ago
Falken Industries LLC jobs

Description In this role, you will provide unarmed Physical Security to a designated site to protect information and personnel. You will work as a member of a team of armed security officers and report to the

Falken Industries LLC  26 days ago
Watermark Risk Management International jobs

Come make your mark with Watermark! FOUNDED BY USAF VETERANS in 2007, we are proud to be a Service-Disabled Veteran Owned Small Business. SUBJECT MATTER EXPERTS specializing in security and risk management. We’re intimately familiar with

Watermark Risk Management International  26 days ago
CesiumAstro jobs

Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by

CesiumAstro  26 days ago
Turion Space jobs

Turion Space is building the autonomous infrastructure required to operate, protect, and sustain the in-space economy. From on-orbit inspection and debris removal to autonomous spacecraft operations powered by Starfire OS, Turion’s growth depends on disciplined capital

Turion Space  25 days ago
ManTech jobs

General information Requisition # R68451 Locations USA-CA-Los Angeles Posting Date 06/04/2026 Security Clearance Required TS/SCI Remote Type Onsite Time Type Full time Description & Requirements Shape the future of defense with MANTECH! Join a team dedicated to safeguarding

ManTech  25 days ago
DCS Corp jobs

DCS has an exciting opportunity for a Principal Systems Engineer providing support to the Command, Control, Communications, and Battle Management Division (C3BM). Command, Control, Communications, and Battle Management (C3BM) has been tasked with delivering an integrated

DCS Corp  25 days ago
Anduril jobs

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century’s most innovative companies to

Anduril  23 days ago
Anduril jobs

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century’s most innovative companies to

Anduril  23 days ago
Boeing jobs

Associate DevOps Developer Company:The Boeing Company Boeing Defense, Space and Security (BDS) Space, Intelligence and Weapon Systems (SI&WS) Ground and Mission Systems Engineering (GMSE) is looking for an Associate DevOps Developer (Level 2) to join our

Boeing  22 days ago

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