Communications Security jobs in California

Lead, Crypto-Communications Security Systems Engineer

San Diego, California

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Today

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 Trust

Full-time

Compensation information provided in the description

Lead, Crypto-Communications Security Systems Engineer

San Diego, California

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Today

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 Trus

Full-time

USD 125,000.00 - 232,000.00 per year

F-35 Program Security Specialist

Ridgecrest, California

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2d ago

Salary Range: $70,310 - $80,000 Provide security program administrative support to include facility, information and personnel activities. Essential Functions: Support general Information Security (INFOSEC), Personnel Security (PERSEC) and Physical Security (PHYSEC) duties. Administer and enforce security policies and procedures regarding the proper handling, safeguarding, marking and destruction of controlled information. Analyze and research security issues, identify solutions and communica

Full-time

USD 70,310.00 - 80,000.00 per year

F-35 Program Security Specialist

Ridgecrest, California

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Yesterday

This site uses cookies to improve the user experience! Would you like to allow cookies? Accept Cookie Settings F-35 Program Security Specialist DCS Corp | Ridgecrest Apply Now Get job alerts by email. Sign up now! Job details Salary Range: $70,310 - $80,000 Provide security program administrative support to include facility, information and personnel activities. Essential Functions: Support general Information Security (INFOSEC), Personnel Security (PERSEC) and Physical Security (PHYSEC) duti

Full-time

USD 70,310.00 - 80,000.00 per year

SCI PERSEC Security Specialist

El Segundo, California

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Today

Job ID: 2615880 Location: El Segundo, CA, US Date Posted: 2026-08-20 Category: Security Subcategory: Security Schedule: Full-Time Shift: Day Job Travel: Yes - 10% of the time Minimum Clearance Required: TS.SCI Clearance Level Must Be Able to Obtain: TS/SCI with Poly Potential for Remote Work: ORA_ON_SITE Description SAIC's Horizon 2 contract is seeking an energized and professional SCI PERSEC Security Specialist to support the contract's secure operating facilities in El Segundo, CA. Y

Full-time

USD 120,001.00 - 160,000.00 per year

FLIR Technician

Ridgecrest, California

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10d ago

Salary Range: $70,304 - $75,000 Candidate will perform tasks involving Test Technician support activities in support of the Weapons System Integration (WSI) Team. Responsible for the verification of laboratory assets, ensuring pod maintenance and availability while adhering to all laboratory policies and procedures. Essential Job functions: Test, troubleshoot, repair, and when necessary, working with Level 1 maintenance and pod vendors to ensure pod assets assigned to the WSI FLIR laboratory a

Full-time

USD 70,304.00 - 75,000.00 per year

Principal Crypto Engineer (TS/SCI)

Los Angeles, California

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Today

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 Partners, Alpine Space Ventures, and others - with an additional $500M in signed contracts across commercial and US government customers - we're mass-producing the highest-power satellite platforms ever built for missions from LEO to deep

Full-time

USD 160,000.00 - 245,000.00 per year

Classified Cyber Assurance Analyst

Hawthorne, California

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Today

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. CLASSIFIED CYBER ASSURANCE ANALYST SpaceX is seeking a classified cyber assurance practitioner to drive the SpaceX classified cyber assurance program forward. The program focuses on three major areas: Assessment: Asse

Full-time

USD 85,000.00 - 115,000.00 per year

Information System Security Officer

Hawthorne, California

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Today

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. INFORMATION SYSTEM SECURITY OFFICER SpaceX is seeking a classified cyber assurance practitioner to drive the SpaceX classified cyber assurance program forward. The program focuses on three major areas: Assessment: As

Full-time

USD 85,000.00 - 115,000.00 per year

Information System Security Manager

Hawthorne, California

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Today

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. INFORMATION SYSTEM SECURITY MANAGER SpaceX is seeking a classified cyber assurance practitioner to drive the SpaceX classified cyber assurance program forward. The program focuses on three major areas: Assessment: Ass

Full-time

USD 85,000.00 - 115,000.00 per year

Sr. Classified Cyber Assurance Analyst

Hawthorne, California

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Today

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SR. CLASSIFIED CYBER ASSURANCE ANALYST SpaceX is seeking a senior classified cyber assurance practitioner to drive the SpaceX classified cyber assurance program forward. The program focuses on three major areas: Asses

Full-time

USD 130,000.00 - 180,000.00 per year

Senior ESS Ground Systems Integration Specialist

El Segundo, California

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Today

Job ID: 2614779 Location: El Segundo, CA, US Date Posted: 2026-07-22 Category: Engineering and Sciences Subcategory: Systems Engineer Schedule: Full-Time Shift: Day Job Travel: Yes - 10% of the time Minimum Clearance Required: Secret Clearance Level Must Be Able to Obtain: Top Secret Potential for Remote Work: ORA_ON_SITE Description ?JOB DESCRIPTION: SAIC is seeking a Senior Evolved Strategic Systems (ESS) Ground Systems Integration Specialist to join our team in El Segundo, CA. Due t

Full-time

USD 120,001.00 - 160,000.00 per year

Senior Communication Hardware Systems Engineering

El Segundo, California

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Today

The Aerospace Corporation is the trusted partner to the nation's space programs, solving the hardest problems and providing unmatched technical expertise. As the operator of a federally funded research and development center (FFRDC), we are broadly engaged across all aspects of space- delivering innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers. When you join our team, you'll be part of a special collection of problem solvers,

Full-time

USD 110,400.00 - 193,500.00 per year

Information System Security Officer (ISSO)

Torrance, California

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Today

About the job Information System Security Officer (ISSO) About Castelion Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts. Information System Security O

Full-time

Principal Software Engineer - Mission Systems

Palmdale, California

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Today

Job Title: Principal Software Engineer - Mission Systems Location: Fort Worth, TX or Palmdale, CA. Compensation: $160,000 - $200,000 + Bonus Eligible Security Clearance: Active Secret Clearance Required Who we are: Founded in 2004 with locations in Atlanta, GA, Fort Worth, TX, Denver, CO, & Huntsville, AL, Thompson Software Solutions (TSS) is a mission-driven Aerospace and Defense software and systems engineering company supporting the U.S. military, defense primes, and commercial space partn

Full-time

USD 160,000.00 - 200,000.00 per year

Senior Software Engineer - Mission Systems

Palmdale, California

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Today

Job Title: Senior Software Engineer - Mission Systems Location: Fort Worth, TX or Palmdale, CA. Compensation: $120,000 - $160,000 + Bonus Eligible Security Clearance: Active Secret Clearance Required Who we are: Founded in 2004 with locations in Atlanta, GA, Fort Worth, TX, Denver, CO, & Huntsville, AL, Thompson Software Solutions (TSS) is a mission-driven aerospace and defense software and systems engineering company supporting the U.S. military, defense primes, and commercial space partners

Full-time

USD 120,000.00 - 160,000.00 per year

Information Technology Assurance Specialist

Vandenberg Space Force Base, California

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Today

MANTECH seeks a motivated, career and customer-oriented Information Technology/Assurance Specialist - I to join our team at Vandenberg Space Force Base in Lompoc, CA. This role supports Special Access Programs (SAPs) within SSC and AFSPC Operational Units, providing critical "day-to-day" support for Collateral, Sensitive Compartmented Information (SCI), and Special Access Program (SAP) activities in a full-time, on-site environment. Responsibilities You will help ensure the operational integr

Full-time

Senior Evolved Strategic Systems (ESS) Ground Systems Integration Engineer

El Segundo, California

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Today

Modern Technology Solutions, Inc. (MTSI) is seeking a Senior Evolved Strategic Systems (ESS) Ground Systems Integration Engineer to join our team in El Segundo, CA. Due to security requirements, work is required to be on-site in a secure facility. The MILSATCOM Systems Engineering, Integration, and Test (MSEIT) effort provides leading edge SE&I for the Space Force's Space System Command. We support the Space Force's acquisition of state-of-the-art MILSATCOM systems, providing secure global, surv

Full-time

USD 183,000.00 - 228,000.00 per year

RF Engineering Technician

Carlsbad, California

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Today

About us One team. Global challenges. Infinite opportunities. At Viasat, we're on a mission to deliver connections with the capacity to change the world. For more than 35 years, Viasat has helped shape how consumers, businesses, governments and militaries around the globe communicate. We're looking for people who think big, act fearlessly, and create an inclusive environment that drives positive impact to join our team. What you'll do Support the System Test engineering team with preparing for

Full-time

USD 27.88 - 44.23 per hour

Senior Evolved Strategic Systems (ESS) Ground Systems Integration Engineer

El Segundo, California

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Today

nLogic is seeking an experienced Senior Evolved Strategic Systems (ESS) Ground Systems Integration Engineer to join our team in El Segundo, CA. Due to security requirements, work is required to be on-site in a secure facility. You will join a Systems Engineering team defining the next generation of space communication systems supporting Air Force Military Satellite Communications. You will support Systems Engineering & Integration activities in a multidisciplinary and collaborative environment.

Full-time

USD 183,000.00 - 271,000.00 per year

Communications Security jobs in California, USA