Herndon, Virginia, United States · On-site
$95k–$193k/yr
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Herndon, Virginia, United States · On-site
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Herndon, Virginia, United States · On-site
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Herndon, Virginia, United States · On-site
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Herndon, Virginia, United States · Hybrid
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Herndon, Virginia, United States · Hybrid
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Herndon, Virginia, United States · Remote OK
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Herndon, Virginia, United States · On-site
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Herndon, Virginia, United States · On-site
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Herndon, Virginia, United States · On-site
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Acclaim Technical Services, founded in 2000, is a leading language, operations, and technology services company supporting a wide range of U.S. Federal agencies. We are an Employee Stock Ownership Plan (ESOP) company, wh…
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Herndon, Virginia, United States · Hybrid
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The Swift Group, LLCHerndon, Virginia, United States · On-site
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Herndon, Virginia, United States · Hybrid
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Herndon, Virginia, United States · On-site
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Herndon, Virginia, United States · On-site
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Skills: Relationship Management, Mission Management, Cyber Operations Support, Agile Methodology, Jira
Simi Valley, California, United States · On-site
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Herndon, Virginia, United States · On-site
$112k–$179k/yr
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Skills: Program scheduling, Risk management, Earned value management, MS Project, Primavera P6
Herndon, Virginia, United States · On-site
Who we are. Platinum Technologies is a Northern Virginia based integrated solutions firm that specializes in Cybersecurity, Cloud and Digital Services to the Public Sector. Our team solves hard problems and helps our Mis…
Skills: Java, Python, C#, RESTful APIs, Microservices
Arlington, Virginia, United States · On-site
$99k–$160k/yr
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Skills: Linux, Networking, Systems design, Software development, Automation
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Develop and run high-fidelity simulations of space, airborne, and ISR sensor systems to evaluate performance and inform mission-level decisions. Coordinate with multidisciplinary teams to analyze complex scenarios, identify trade-offs, and deliver defensible technical recommendations.
Requires a bachelor's degree in a technical field and at least 3 years of professional experience in space systems modeling and simulation. Candidates must possess U.S. citizenship and an active TS/SCI security clearance.
Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what’s happening now and shape what’s coming next. Vantor is a place for problem solvers, changemakers, and go-getters—where people are working together to help our customers see the world differently, and in doing so, be seen differently. Come be part of a mission, not just a job, where you can: Shape your own future, build the next big thing, and change the world.
To be eligible for this position, you must be a U.S. Citizen. This position requires an active U.S. Government security clearance, applicants who do not currently hold the required clearance will not be eligible for consideration. Employment for cleared roles is contingent upon verification of clearance status.

Export Control/ITAR: Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3).
Vantor is seeking an Aerospace Modeling & Simulation Engineer II to support advanced ISR studies for government and commercial customers. In this role, you will model satellites, aircraft, sensor systems, mission scenarios, and operational concepts to evaluate performance, explore trade-offs, and inform decisions on future space and airborne capabilities.
This is a hands-on technical role for an experienced engineer who can independently solve complex mission problems, improve simulation capabilities, and turn detailed analysis into clear recommendations. You will own major analysis tasks, coordinate with technical stakeholders, and contribute to the development of reusable tools and consistent modeling practices.
What You’ll Do
Independently develop, modify, and run high-fidelity simulations of space, airborne, and ISR sensor systems for architecture studies, system trades, performance assessments, and mission-level analyses.
Design operational vignettes and analysis plans that translate customer priorities into measurable scenarios, assumptions, and evaluation criteria.
Own complex analysis tasks from requirements clarification through model configuration, execution, interpretation, and delivery.
Develop new tools, scripts, simulator features, and reusable scenario components to improve scenario generation, data analysis, visualization, and workflow efficiency.
Analyze results to identify trends, risks, trade-offs, sensitivities, and key performance drivers, and provide defensible recommendations.
Apply and improve QA/QC, verification, validation, configuration-management, and documentation practices.
Estimate technical effort, identify risks and dependencies, and coordinate assigned work with project leads and multidisciplinary teams.
Present findings and recommendations to technical teams, program leaders, and customers.
Provide technical guidance and peer review to less-experienced analysts.
Note: US citizenship and an active TS/SCI clearance are mandatory for this position and required for consideration.
Required:
US Citizenship Required with an active or current TS/SCI clearance.
Bachelor’s degree from an accredited college/university, in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, Mathematics, Physics, or Computer Science.
3 years of professional experience in space systems modeling and simulation, including knowledge of the theory and applications of astrodynamics, remote sensing, spacecraft design, aerospace systems operations, or complex systems integration.
Willing to work on-site.
Desired/Preferred Qualifications:
An advanced degree in Engineering or a related field.
7 years of professional experience in space systems modeling and simulation, including knowledge of the theory and applications of astrodynamics, remote sensing, spacecraft design, aerospace systems operations, or complex systems integration.
Experience with the design, development and software implementation of complex mathematical algorithms.
Ability to develop standalone engineering tools/scripts via Python and/or Excel.
Ability to identify, analyze, resolve technical risks and issues, develop technical reports, and collaborate with government and other stakeholders to implement recommended solutions.
Ability to communicate and establish collaborative relationships with both clients and teammates to achieve program goals.
Strong interpersonal, written, and verbal communication skills.
Highly motivated and dynamic work ethic with a strong desire to contribute to the mission.
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Pay Transparency: In support of pay transparency at Vantor, we disclose salary ranges on all U.S. job postings. The successful candidate’s starting pay will fall within the salary range provided below and is determined based on job-related factors, including, but not limited to, the experience, qualifications, knowledge, skills, geographic work location, and market conditions. Candidates with the minimum necessary experience, qualifications, knowledge, and skillsets for the position should not expect to receive the upper end of the pay range.
The base pay for this position within California, Colorado, Hawaii, New Jersey, the Washington, DC metropolitan area, and for all other states is:
$95,000.00 - $193,000.00Benefits: Vantor offers a competitive total rewards package that goes beyond the standard, including a robust 401(k) with company match, mental health resources, and unique perks like student loan repayment assistance, adoption reimbursement and pet insurance to support all aspects of your life. You can find more information on our benefits at: https://www.Vantor.com/careers
The application window is three days from the date the job is posted and will remain posted until a qualified candidate has been identified for hire. If the job is reposted regardless of reason, it will remain posted three days from the date the job is reposted and will remain reposted until a qualified candidate has been identified for hire.
The date of posting can be found on Vantor's Career page at the top of each job posting.
To apply, submit your application via Vantor's Career page.
EEO Policy: Vantor is an equal opportunity employer committed to an inclusive workplace. We believe in fostering an environment where all team members feel respected, valued, and encouraged to share their ideas. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, gender identity, sexual orientation, disability, protected veteran status, age, or any other characteristic protected by law.
Vantor is forging the new frontier of spatial intelligence to unlock a more automated, interoperable world. We give decision makers and operators the power to build a unified intelligence picture, delivering the clarity they need to navigate what’s happening now and shape what’s coming next. We fuse data from the world’s most capable imaging satellites with real-time sensor feeds from space, air, and ground to create the most accurate living digital replica of Earth. Our AI-powered spatial intelligence platform automates every part of the intelligence cycle—from tasking to collection to production—to continuously update and analyze this foundation at the pace of change. Our products drive deeper mission-critical insights and connect the next generation of autonomous systems across the defense, intelligence, and commercial landscape.
Offices: 1300 W 120th Ave, Westminster, Colorado 80234, US
Based on 588 listings with disclosed salaries, most security & safety jobs in Herndon, VA pay between $94k–$216k per year. Individual offers vary with seniority, company size, and specialization.
There are currently 710 open security & safety positions in Herndon, VA listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Amazon, Peraton, General Dynamics Information Technology, Dark Wolf, VT Group (VTG), among others. Browse the listings above to see every active employer.
Yes — 118 of the 710 open security & safety positions offer remote or hybrid work (25 remote, 93 hybrid).
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.
