2,261 Results for

Security Administrator Jobs in Chantilly, VA

Jobs

Sr Thermal Test Engineer Baltimore Aircoil Co

Jessup, MD

$90,000–$154,100 / year

This engineer is charged with overseeing thermal testing for BAC's global product lines to support development of thermal models, for regulatory testing, for customer performance testing, and to support new product introduction (NPI) initiatives. Support customer thermal performance verification testing (Factory Witness Testing) by setting expectations, setting up the test program, resolving queries, and generating reports.

30+ days ago

2027 Graduate - RF Systems Evaluation and Integration Engineer Johns Hopkins Applied Physics Laboratory

Laurel, Maryland

Full time

We are looking for an RF Systems Evaluation and Integration Engineer to test, evaluate, and integrate RF systems, with a focus on ensuring effectiveness in real-world environments and driving innovation for the next generation of missile defense systems. If you are graduating with a Bachelor's or Master's degree in Electrical Engineering, Physics, Computer Engineering, or Systems Engineering we would love to have you join the Radio Frequency Engineering Group!

30+ days ago

Missile Performance Engineer Johns Hopkins Applied Physics Laboratory

Laurel, Maryland

Full time

Have 2+ years of experience in a missile or flight system engineering discipline such as modeling and simulation, aerodynamics, flight dynamics, missile guidance, navigation, and control, propulsion or missile test and evaluation. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.

30+ days ago

Subsea Robotics Engineer Johns Hopkins Applied Physics Laboratory

Laurel, Maryland

Full time

Develop robotics software for Autonomous Underwater Vehicles (AUVs), Remotely Operated Vehicles (ROVs), and other subsea robotic systems using ROS 2. Design, implement, and maintain modular software in C++ and Python on Linux-based systems. Have a Bachelor's or Master's degree in Robotics, Mechanical Engineering, Electrical Engineering, Computer Science, Computer Engineering, Ocean Engineering, Aerospace Engineering, or a related technical field.

30+ days ago

2027 Graduate - Advanced Kinetic Weapons Engineer Johns Hopkins Applied Physics Laboratory

Laurel, Maryland

Full time

As an Advanced Kinetic Weapons Engineer: Your primary responsibility will be to generate and analyze simulated guided missile data through the use of high-fidelity and mixed-fidelity simulations and statistical analysis tools. You will evaluate the performance of various existing and future interceptor systems, examining EO/IR and RF seeker operations, guidance and control performance, fire control sensor handover processes, missile proximity fuzing, and warhead efficacy.

30+ days ago

2027 Graduate - Engineer/Scientist - Communication Systems Johns Hopkins Applied Physics Laboratory

Laurel, Maryland

Full time

We are seeking multiple Networking and Software Engineers eager to learn new skills as you join a hardworking multi-disciplinary team responsible for problem solving, designing, and prototypingsolutions to provide access to real-time information for our government sponsors. If you are graduating with a Bachelor's or Master's degree in Electrical Engineering, Computer Science, Computer Engineering, or other related technical degree and want to work in developing solutions for networking challenges, we would love to have you join our team!

30+ days ago

Agentic Forward Deployed Engineer Booz Allen Hamilton Inc.

Arlington, VA

$99,000–$225,000 / year

What You'll Work On: Embed with client teams to observe and document how work actually happens, including workflows, systems, data flows, decision points, and the exception paths that aren't captured in formal documentation. Produce operating maps and automation roadmaps that prioritize high‑volume workflows by expected value and risk and determine where deterministic software, agent judgment, and human‑in‑the‑loop approvals each belong.

23 days ago

2027 Graduate - Human Factors Engineer - Health/Human Machine Systems Johns Hopkins Applied Physics Laboratory

Laurel, Maryland

Full time

You will be joining a hardworking team of engineers and researchers responsible for developing innovative solutions and integrating cutting-edge technologies, data-driven processes, and artificial intelligence (AI) and machine learning (ML) principles. If you are graduating with a Bachelor's or Master's degree in Psychology, Human Factors Engineering, Human Systems Integration, or Computer Science and passionate about integrating systems, humans, and operations to achieve mission outcomes, we would love to have you join our team!

21 days ago

Network Systems Engineer Booz Allen Hamilton

Arlington, Virginia

$62,000–$141,000 / year

You’ll develop and upgrade network infrastructure, review network designs, research and recommend new technologies and services, resolve complex network issues, and increase security, reliability, and availability for mission-critical network systems. That’s why we need you, an experienced network engineer who knows how to develop the exact network the DoD needs for the Joint Stike Fighter (JSF) Reprogramming Enterprise (JRE).

13 days ago

Principal Engineer, Advanced Thermal Modeling Baltimore Aircoil Company

Jessup, MD

Full time

POSITION PURPOSE The Global Advanced Digital Engineering team is Baltimore Aircoil Company's (BAC) engine, combining domain SME, software, and automation expertise to build modular, scalable, and reusable engineering capability, including models, methods, tools, CAD and simulation environments, workflows, and digital architectures that improve speed, quality, and consistency of engineering outcomes across BAC's products, applications, and digital ecosystems. The role spans unit-level physics, system-level performance, and cost-of-ownership modeling, with accountability for modeling strategy, architecture, and delivery through direct contribution and team execution, and translates thermodynamic and heat transfer expertise into scalable modeling frameworks, simulation tools, and validated methods.

16 days ago

Network Effects Engineer Johns Hopkins Applied Physics Laboratory

Laurel, Maryland

Full time

Design, build, and orchestrate threat-representative network topologies and software-defined comms systems incorporating Anti-Detection and Anti-Censorship concepts to serve as test ranges tailored for unique mission profiles. Develop, evaluate, and qualify an evolving portfolio of network and comms enabled capabilities, determining their real-world operational impact, signature footprint, and clandestine survivability.

30+ days ago

2027 PhD Graduate - Subsea Robotics Engineer Johns Hopkins Applied Physics Laboratory

Laurel, Maryland

Full time

Develop robotics software for Autonomous Underwater Vehicles (AUVs), Remotely Operated Vehicles (ROVs), and other subsea robotic systems using ROS 2. Design, implement, and maintain modular software in C++ and Python on Linux-based systems. Have experience developing, implementing, or testing dynamic systems, feedback control algorithms, robotic simulation, or autonomous systems through coursework, research projects, internships, or professional experience.

30+ days ago

Experienced Reentry Systems Engineer Johns Hopkins Applied Physics Laboratory

Laurel, Maryland

Full time

Have an extensive background in some or all of the following categories: Modeling, Simulation, and Analysis (MS&A), Computational Fluid Dynamics (CFD), aerothermal analysis, aerodynamics, aerospace vehicle dynamics, flight test engineering, vehicle functional performance analysis, and/or requirements management/verification. Description: Are you interested in working on engineering challenges associated with the reentry systems deployed as part of our Nation’s premiere strategic ballistic missile and long-range strike hypersonic weapon systems?.

30+ days ago

2027 PhD Graduate - Aerothermal Engineer Johns Hopkins Applied Physics Laboratory

Laurel, Maryland

Full time

APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development. Can work effectively in multi-disciplinary teams comprised of APL staff, government sponsors, military personnel, and industry partners with varying experience levels and backgrounds.

30+ days ago

Enterprise Sales Engineer - FED Datadog Inc

Washington, DC

$118,000–$157,000 / year

About Datadog: Datadog is the leading observability and security platform for the AI era, providing businesses with unified visibility across the technology stack to manage complexity at scale. Project manage technical evaluations (POVs) end-to-end: scoping use cases and requirements, defining success criteria, building a project plan with clear timelines, and holding all participants accountable to the process.

30+ days ago

Senior Sales Engineer - FED Datadog Inc

Rockville, MD

$149,000–$198,000 / year

30+ days ago

Chief Engineer Leidos

Arlington, Virginia

The ideal candidate will possess superior analytical and problem-solving skills, operate independently with limited supervision and feedback, be a strong team player, and have the ability to establish solid working relationships with technical staff members and peers within the division as well as our external Government customers. September 29, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

9 days ago

Staff Engineer, Advanced Thermal Modeling Baltimore Aircoil Co

Jessup, MD

$98,400–$168,900 / year

The Global Advanced Digital Engineering team is Baltimore Aircoil Company's (BAC) engine, combining domain SME, software, and automation expertise to build modular, scalable, and reusable engineering capability, including models, methods, tools, CAD and simulation environments, workflows, and digital architectures that improve speed, quality, and consistency of engineering outcomes across BAC's products, applications, and digital ecosystems. The Staff Engineer, Advanced Thermal Modeling reports to the Principal Engineer, Advanced Thermal Modeling, and operates across BAC's product portfolio, applications space, and global regions, requiring close coordination with NPI, CPI, Advanced Applications, and Global and Regional business teams, balancing deep technical contribution with cross-functional impact.

30+ days ago

GPU Software Engineer Leidos

Arlington, Virginia

September 30, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. These teams are made up of other software team members and subject matter experts from the areas of systems engineering, hardware, firmware, machine learning, RF front end design, and signal processing.

8 days ago

Real-Time Software Engineer Leidos

Arlington, VA

$87,100–$157,450 / year

Projects involve small multi-disciplinary teams of engineers working together in spiral or agile development environments to meet aggressive customer schedules aimed at near-term field demonstrations. June 8, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

6 days ago

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Security Administrator Jobs in Chantilly, VA

Sr Thermal Test Engineer Baltimore Aircoil Co

2027 Graduate - RF Systems Evaluation and Integration Engineer Johns Hopkins Applied Physics Laboratory

Missile Performance Engineer Johns Hopkins Applied Physics Laboratory

Subsea Robotics Engineer Johns Hopkins Applied Physics Laboratory

2027 Graduate - Advanced Kinetic Weapons Engineer Johns Hopkins Applied Physics Laboratory

2027 Graduate - Engineer/Scientist - Communication Systems Johns Hopkins Applied Physics Laboratory

Agentic Forward Deployed Engineer Booz Allen Hamilton Inc.

2027 Graduate - Human Factors Engineer - Health/Human Machine Systems Johns Hopkins Applied Physics Laboratory

Network Systems Engineer Booz Allen Hamilton

Principal Engineer, Advanced Thermal Modeling Baltimore Aircoil Company

Network Effects Engineer Johns Hopkins Applied Physics Laboratory

2027 PhD Graduate - Subsea Robotics Engineer Johns Hopkins Applied Physics Laboratory

Experienced Reentry Systems Engineer Johns Hopkins Applied Physics Laboratory

2027 PhD Graduate - Aerothermal Engineer Johns Hopkins Applied Physics Laboratory

Enterprise Sales Engineer - FED Datadog Inc

Senior Sales Engineer - FED Datadog Inc

Chief Engineer Leidos

Staff Engineer, Advanced Thermal Modeling Baltimore Aircoil Co

GPU Software Engineer Leidos

Real-Time Software Engineer Leidos

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