Government contracts jobs in el segundo, ca

El Segundo, California

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Today

Overview Modern Technology Solutions, Inc. (MTSI) is seeking a Launch Systems Engineer with extensive expertise in classified weapon system launch planning, processing, and execution, as well as space vehicle engineering, design, integration, and test. This position supports a U.S. Space Force (USSF) program office responsible for developing, integrating, testing, and launching advanced space systems. Work will be performed in secure government environments supporting highly sensitive and missi

Full-time

USD 170,000.00 - 215,000.00 per year

Space Systems Integration Engineer

El Segundo, California

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Today

Overview: MTSI is seeking a highly experienced Space Systems Integration Engineer to provide advanced technical leadership across space vehicle development, integration, launch preparation, and on-orbit operations in support of Space Systems Command (SSC). You will support all phases of mission development-design, integration, launch readiness, and operations-while ensuring compliance with required SSC guidance, policies, and mission standards. Key Responsibilities: Satellite Development, Int

Full-time

USD 160,000.00 - 190,000.00 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

Systems Integrator

Hybrid in El Segundo, California

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Today

Job Number: R0245861 Systems Integrator The Opportunity: Are you looking for an opportunity to combine your technical skills with big picture thinking to make an impact on national security space missions? You understand your customer's environment and how to develop the right systems for their mission. Your ability to translate real-world needs into technical specifications makes you an integral part of delivering a customer-focused engineering solution. If this sounds like you, come join Booz

Full-time

USD 86,800.00 - 198,000.00 per year

Systems Integration Engineer

Hybrid in El Segundo, California

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Today

Job Number: R0245864 Systems Integration Engineer The Opportunity: Are you looking for an opportunity to combine your technical skills with big picture thinking to make an impact on national security space missions? You understand your customer's environment and how to develop the right systems for their mission. Your ability to translate real-world needs into technical specifications makes you an integral part of delivering a customer focused engineering solution. If this sounds like you, come

Full-time

USD 86,800.00 - 198,000.00 per year

Materials Engineer - Flight Vehicle Support

Torrance, California

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Today

About the job Materials Engineer - Flight Vehicle Support Why Castelion, Why Now Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus and technical excellence are decisive advantages - and we are building a team that can deliver real capability, not just concepts. This is a rare opportunity to join at an early stage, where your work will directly shape critical systems, influence major technical de

Full-time

Mission Engineering Analyst

El Segundo, California

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Today

Overview MTSI is seeking a Mission Engineering & Advanced Space Projects Analyst to support Advanced Space Project acquisition planning and development, hosted payload acquisition activities, mission engineering. Acquisition Planning & Development Provide acquisition support for Advanced Space Project acquisition planning and development, including generating recommendations for acquisition strategies, procurement plans, and source-selection documentation.Develop and maintain acquisition arti

Full-time

USD 135,000.00 - 170,000.00 per year

ESS Terminals Systems Engineer

El Segundo, California

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Today

Modern Technology Solutions, Inc. (MTSI) is seeking an ESS Terminals Systems Engineer to join our team in El Segundo, CA. 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, survivable, and protected communications for our nation's warfighters. We seek technical individuals who will thrive in a highly

Full-time

USD 135,000.00 - 169,000.00 per year

ESS Terminals Senior Systems Engineer

El Segundo, California

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Today

Modern Technology Solutions, Inc. (MTSI) is seeking an ESS Terminals Senior Systems Engineer to join our team in El Segundo, CA. 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, survivable, and protected communications for our nation's warfighters. We seek technical individuals who will thrive in a

Full-time

USD 162,000.00 - 203,000.00 per year

Space Vehicle Platform/Payload Systems Engineer

El Segundo, California

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Today

Space Vehicle Platform/Payload Systems Engineer El Segundo, CA Who We Are Aurex is a mission-focused aerospace and defense company building the next frontier of deterrence. From hypersonics and missile defense to hardened networks and orbital systems, we design, test, and deliver the platforms that turn unproven ideas into battlefield-ready capability. Born in Huntsville and built for speed, Aurex brings together aerospace veterans, combat-tested operators, and forward-leaning technologists to

Full-time

USD 180,000.00 - 200,000.00 per year

Space Vehicle Bus Systems Engineer

El Segundo, California

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Today

Space Vehicle Bus Systems Engineer El Segundo, CA Who We Are Aurex is a mission-focused aerospace and defense company building the next frontier of deterrence. From hypersonics and missile defense to hardened networks and orbital systems, we design, test, and deliver the platforms that turn unproven ideas into battlefield-ready capability. Born in Huntsville and built for speed, Aurex brings together aerospace veterans, combat-tested operators, and forward-leaning technologists to solve proble

Full-time

USD 180,000.00 - 200,000.00 per year

Space Vehicle Architect/Engineer

El Segundo, California

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Today

Space Vehicle Architect/Engineer El Segundo, CA (Hybrid) Who We Are Aurex is a mission-focused aerospace and defense company building the next frontier of deterrence. From hypersonics and missile defense to hardened networks and orbital systems, we design, test, and deliver the platforms that turn unproven ideas into battlefield-ready capability. Born in Huntsville and built for speed, Aurex brings together aerospace veterans, combat-tested operators, and forward-leaning technologists to solve

Full-time

USD 159,000.00 - 190,000.00 per year

Principal Program Systems Integration Engineer

El Segundo, California

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Today

Modern Technology Solutions, Inc. (MTSI) is seeking a Principal Program 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, survivable, and protected commu

Full-time

USD 140,000.00 - 200,000.00 per year

Materials Engineering - Equipment Engineer (Automation & Controls)

Torrance, California

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Today

About the job Materials Engineering - Equipment Engineer (Automation & Controls) Why Castelion, Why Now Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus and technical excellence are decisive advantages - and we are building a team that can deliver real capability, not just concepts. This is a rare opportunity to join at an early stage, where your work will directly shape critical systems, influ

Full-time

Requirements Systems Engineer

El Segundo, California

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Today

Overview: Modern Technology Solutions, Inc. (MTSI) is seeking a highly qualified Requirements Systems Engineer to support next-generation programs for the U.S. Space Force (USSF). In this role, you will contribute to Systems Engineering & Integration (SE&I) activities, Model-Based Systems Engineering (MBSE) development, technical baseline integrity, and requirements analysis. Responsibilities: Support MBSE activities to develop, refine, and maintain system and subsystem technical baselines.Dev

Full-time

USD 120,000.00 - 150,000.00 per year

Systems Engineering Technical Advisor, Certification Subject Matter Expert (SME)

El Segundo, California

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Today

Systems Engineering Technical Advisor, Certification Subject Matter Expert (SME) El Segundo, CA (Hybrid) Who We Are Aurex is a mission-focused aerospace and defense company building the next frontier of deterrence. From hypersonics and missile defense to hardened networks and orbital systems, we design, test, and deliver the platforms that turn unproven ideas into battlefield-ready capability. Born in Huntsville and built for speed, Aurex brings together aerospace veterans, combat-tested operat

Full-time

USD 175,000.00 - 225,000.00 per year

Materials Engineer - High Temperature Composites

Torrance, California

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Today

About the job Materials Engineer - High Temperature Composites Why Castelion, Why Now Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus and technical excellence are decisive advantages - and we are building a team that can deliver real capability, not just concepts. This is a rare opportunity to join at an early stage, where your work will directly shape critical systems, influence major technic

Full-time

Mechanical Test Engineer (II-Senior)

Long Beach, California

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Today

Space is a warfighting domain. True Anomaly seeks those with the talent and ambition to build the technology that secures it. OUR MISSION True Anomaly delivers decisive capabilities for space superiority. We build autonomous spacecraft, advanced payloads, mission software, and space-based interceptors - enabling the U.S. and its Allies to secure the space environment and counter threats from the ultimate high ground. OUR VALUES Be the offset. We create asymmetric advantages with creativity an

Full-time

USD 100,000.00 - 120,000.00 per year

Senior Program Systems Integration Engineer

El Segundo, California

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Today

Modern Technology Solutions, Inc. (MTSI) is seeking a Senior Program 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, survivable, and protected communic

Full-time

USD 135,000.00 - 169,000.00 per year

Principal Build Reliability Engineer

Torrance, California

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Today

About the job Principal Build Reliability Engineer Why Castelion, Why Now Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus and technical excellence are decisive advantages - and we are building a team that can deliver real capability, not just concepts. This is a rare opportunity to join at an early stage, where your work will directly shape critical systems, influence major technical decisions

Full-time

Government contracts jobs in El Segundo, CA, USA