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Agile Defense

Full-time|On-site|Reston, VA

At Agile Defense, we believe that proactive action shapes outcomes, and that evolving challenges necessitate innovative solutions. Our forward-thinking approach embraces change with unwavering determination and the courage to prepare for the future.We are dedicated to delivering adaptive innovation to our nation’s critical missions by seamlessly integrating …

Feb 19, 2026

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Lead Information System Security Officer - Contingent Upon Award

TotalSysTech

Full-time|On-site|Reston, VA

We are seeking a highly skilled Lead Information System Security Officer (ISSO) to join our team at TotalSysTech. This pivotal role involves overseeing the security posture of our information systems and ensuring compliance with federal regulations and standards. As a Lead ISSO, you will be responsible for implementing and managing security controls, conducting risk assessments, and developing security policies and procedures. You will work closely with other IT professionals to enhance the security framework and mitigate potential threats.

Mar 16, 2026

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Mid-Level CNAPP Security Engineer with Public Trust Clearance

GuidePoint Security

Full-time|Remote|Reston, VA

GuidePoint Security works with Fortune 500 companies and U.S. government agencies to strengthen cybersecurity and reduce risk. The team uses a three-tiered approach to evaluate security posture and ecosystems, helping organizations identify threats, allocate resources, and implement tailored solutions. Role Overview The Mid-Level CNAPP Security Engineer joins the DevSecOps Security practice, supporting clients across the Mid-Atlantic region. This role focuses on advising, implementing, and managing CNAPP Cloud Security tools for a range of organizations. Collaboration with a team of cybersecurity professionals is central to the position. Location This is a remote role. Preference is given to candidates based in Virginia, Maryland, Pennsylvania, North Carolina, Delaware, New Jersey, or Washington D.C. What You Will Do Advise clients on CNAPP Cloud Security solutions Implement and manage CNAPP security tools Work with cloud security technologies, including Infrastructure as Code (IaC), Cloud Security Posture Management (CSPM), and Cloud Workload Protection Platforms (CWPP) Engage with clients across various sectors to deliver security services Stay current with evolving cloud security tools and practices Requirements Experience with CNAPP, IaC, CSPM, and CWPP technologies Ability to advise, implement, and manage cloud security solutions Eligible for or holding a Public Trust clearance Residence in the Mid-Atlantic region strongly preferred

Apr 15, 2026

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Lead Information Systems Security Officer

Agile Defense

Full-time|On-site|Reston, VA

Join Agile Defense as a Lead Information Systems Security Officer, where you will play a pivotal role in safeguarding our digital assets. You will lead a team dedicated to ensuring compliance with security regulations and best practices, while actively participating in the development of security policies and procedures. Your expertise will help us mitigate risks and protect sensitive information.

Mar 1, 2026

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Lead LAN/WAN Engineer

grvty

Full-time|On-site|Reston, Virginia, United States

Join grvty as a Lead LAN/WAN Engineer and play a pivotal role in designing, implementing, and maintaining our advanced networking systems. In this dynamic position, you'll collaborate with cross-functional teams to enhance our network infrastructure, ensuring optimal performance and security.

Apr 6, 2026

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Senior Manager - Information Security, Tools, and Engineering

VeriSign, Inc.

Full-time|On-site|Reston,Virginia,United States

As a Senior Manager in Information Security, Tools, and Engineering at VeriSign, you will lead a dynamic team dedicated to protecting our digital assets and ensuring the integrity of our cybersecurity posture. You will oversee the development and implementation of security tools and engineering practices that safeguard our infrastructure. Your role will involve strategic planning, risk assessment, and innovative solutions to enhance our security framework.

Mar 17, 2026

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Senior DevSecOps Engineer III - Elevate Security with MetroStar

MetroStar Systems

Full-time|On-site|Reston, VA

MetroStar Systems is looking for a Senior DevSecOps Engineer III to strengthen application security and streamline the software development lifecycle. This role centers on embedding security practices within CI/CD pipelines and working closely with teams across the organization. Role overview The Senior DevSecOps Engineer III will take the lead in integrating security measures throughout development and deployment processes. Collaboration with developers, security specialists, and operations teams is essential to ensure consistent protection against threats. What you will do Integrate security controls into CI/CD workflows Work with cross-functional teams to align security and development goals Apply established security practices to safeguard applications Impact Your contributions will help MetroStar Systems innovate while maintaining strong defenses against evolving security risks. This position is based in Reston, VA.

Apr 28, 2026

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Lead Azure Software Engineer

Artech Information Systems LLC

Full-time|On-site|Reston

Join our dynamic team as a Lead Azure Software Engineer at Artech Information Systems LLC, where you will play a pivotal role in developing innovative cloud solutions. As a key member of our engineering team, you will utilize your expertise in Azure, software development, and team leadership to drive projects from conception to completion.

Jul 13, 2017

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Lead LAN/WAN Engineer

grvty

Full-time|On-site|Reston, Virginia, United States

Your ImpactWe invite you to join our dynamic team as a Lead LAN/WAN Engineer, where you'll leverage your expertise to design, analyze, and support intricate networking systems. In this pivotal role, clear and concise communication is essential, as you'll be collaborating with teams in fast-paced environments to tackle challenging networking issues.Your ResponsibilitiesLead initiatives in local and wide-area networking, becoming a trusted advisor sought after for your insights.Act as a technical authority on both established and ad-hoc project teams, guiding technical direction and offering solutions to meet architectural and operational demands.Share your knowledge of cutting-edge technologies, integrations, and capabilities with the team.Consult with engineers, team leads, and customer stakeholders to understand and define technical requirements.Provide specialized knowledge in BGP, OSPF, GRE, VPN, L2TP, Spine and Leaf architectures, and BGP Peering.

Mar 24, 2026

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Embedded Counterintelligence Program Lead

Anduril Industries

Full-time|$129K/yr - $171K/yr|On-site|Reston, Virginia, United States

At Anduril Industries, we are redefining defense technology with a mission to revolutionize military capabilities for the U.S. and its allies through cutting-edge advancements. By integrating the expertise, innovative technology, and dynamic business models from the most pioneering organizations of the 21st century, we are transforming the design, production, and sales of military systems. Our family of systems is driven by Lattice OS—an AI-enhanced operating system that synthesizes thousands of data streams into a real-time, 3D command and control center. As we navigate an era marked by strategic competition, Anduril is dedicated to delivering state-of-the-art autonomy, AI, computer vision, sensor fusion, and networking technology to the military in rapid timelines.ABOUT THE TEAMThe Counterintelligence (CI) and Security Investigations Team plays a crucial role in protecting Anduril’s workforce and supply chain. We proactively identify risks, mitigate threats, and provide actionable investigative insights to ensure our security landscape remains vigilant and resilient, safeguarding our strategic interests. Our commitment to anticipating and addressing risks empowers Anduril to innovate and operate confidently in a fast-evolving global environment.ABOUT THE POSITIONWe are looking for a driven professional to join our CI and Security Investigations team, offering a unique opportunity to strategize, implement, and communicate initiatives that require critical thinking, creativity, and strong interpersonal skills. As the Embedded CI Program Lead, you will execute various functions to support a specific division of Anduril, focusing on identifying potential nation-state threats and risks related to the division's assets, personnel, technologies, and supply chain. This role involves close collaboration with key stakeholders and U.S. government partners, enabling rapid mitigation strategies and informed decision-making. The ideal candidate will be a proactive self-starter, capable of operating independently in fast-paced and dynamic operational environments while remaining aligned with the CI & Security Investigations team’s objectives. A solid understanding of CI, insider threat dynamics, risk vetting, supply chain support, and the fundamentals of analysis and risk management is essential, along with the ability to analyze and convey complex risks and threats effectively.

Feb 21, 2026

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Mobile Software Engineer Lead

Artech Information Systems LLC

Full-time|On-site|Reston

Join our dynamic team as a Mobile Software Engineer Lead where you will spearhead innovative mobile application projects. We are seeking a talented individual who is passionate about mobile technologies and has a proven track record in leading development teams. In this role, you will collaborate with cross-functional teams to design, develop, and implement cutting-edge mobile solutions.

Jul 13, 2017

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Senior Information Security Specialist | Cyber Security at Prosidian Consulting in Reston

Prosidian Consulting

Full-time|On-site|Reston

Join Prosidian Consulting as a Senior Information Security Specialist within our IT Effectiveness team, focusing on Cyber Security. In this pivotal role, you will enhance our security posture and ensure that our technology infrastructure is robust and resilient against emerging threats. You will collaborate with cross-functional teams to implement security best practices and elevate our cybersecurity initiatives.

Sep 17, 2024

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Lead Specialist in Insider Threat Monitoring

Agile Defense, Inc.

Full-time|On-site|Reston, VA

As the Lead Specialist in Insider Threat Monitoring at Agile Defense, Inc., you will spearhead initiatives aimed at identifying, mitigating, and responding to insider threats within our organization. Your expertise will be critical in developing strategies to detect potential threats, ensuring the safety and security of sensitive data, and fostering a culture of awareness and vigilance.

Mar 1, 2026

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Senior Security Architect - Mid-Atlantic Region

GuidePoint Security

Full-time|On-site|Reston, VA

At GuidePoint Security, we pride ourselves on delivering unparalleled cybersecurity expertise, innovative solutions, and comprehensive services that empower organizations to make informed decisions and effectively minimize risks. By adopting a multi-faceted approach to evaluate security postures and ecosystems, we assist some of the nation’s leading entities, including Fortune 500 companies and U.S. government agencies, in identifying threats, optimizing resources, and implementing tailored solutions that mitigate risk.NOTE: Only candidates residing in Northern Virginia will be considered for this client-facing presales role, which involves 15-25% travel within this market.Overview:The Senior Security Architect will work closely with Account Executives to stimulate new business opportunities across the Mid-Atlantic region by providing expert architectural security guidance and strategic solution recommendations. This role is crucial in collaborating with the engineering team to design and introduce new offerings tailored to our regional customers. The focus will be entirely on cybersecurity solutions, allowing for the evaluation and recommendation of cutting-edge security technologies within the industry.

Jan 15, 2026

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Lead Data Engineer for Mission Data Pipeline

ACT1 Federal LLC

Full-time|On-site|Reston, Virginia, United States

Position Title: Lead Data Engineer for Mission Data PipelineLocation: Reston, VACategory: ProposalSchedule: Full-TimeTravel Required: MinimalShift: DayRemote Type: On-siteClearance Required: Active TS/SCI EligibleDivision: AviationNote: This position is contingent upon contract award.Company Overview: ACT1 Federal LLC is a proud 100% employee-owned organization dedicated to serving the Department of Defense (DoD) for nearly three decades. Our expertise spans weapon systems engineering, logistics, space domain knowledge, global defense and security, business management for security assistance, and military training. Become a part of our mission-driven team today!Job Summary: We are looking for a Lead Data Engineer to play a key role in the Mission Data Pipeline, serving as a Subject Matter Expert (SME) for the Department of the Air Force's Integrated Fires Command and Control (DIFC2) Program. You will engage with government and technical stakeholders to design, implement, and maintain data pipelines that efficiently manage mission-critical data across the DIFC2 software ecosystem and external partner systems.The position will be based in Reston, VA, focusing on supporting the Horizon program within the DIFC2 Program Management Office. Your collaboration with Space Systems Command (SSC) will be pivotal in developing software solutions that enhance data accessibility, mission integration, operational visibility, and cross-system interoperability. You will ensure reliable, secure, and automated data flows that align with operational timelines and meet mission requirements.Key Responsibilities:Identify mission-relevant data artifacts through analysis of DIFC2 workflows and architecture.Define data exchange artifacts to support operational capabilities.Collaborate with mission system stakeholders, platform engineers, and security teams to ensure compliance with Risk Management Framework (RMF) requirements.Leverage both low-code/no-code ETL technologies and custom software development for scalable data pipeline implementation.

May 1, 2026

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Contractor Special Security Officer

Anduril Industries

Contract|$129K/yr - $171K/yr|On-site|Reston, Virginia, United States

Anduril Industries is a cutting-edge defense technology firm dedicated to revolutionizing the military capabilities of the United States and its allies through the integration of advanced technology. By leveraging the expertise, innovation, and business strategies of the most dynamic companies of the 21st century, Anduril is transforming the design, construction, and deployment of military systems. Our suite of systems is powered by Lattice OS, a sophisticated AI-driven operating system that synthesizes vast data streams into a real-time, three-dimensional command and control center. As we navigate a new era of strategic competition, Anduril is steadfast in its mission to deliver state-of-the-art solutions in autonomy, AI, computer vision, sensor fusion, and networking technologies to military entities in a matter of months, not years.Job DescriptionThe Contractor Special Security Officer (CSSO) is pivotal in a fast-paced, dynamic environment, providing essential support for Sensitive Compartmented Information (SCI) programs within the Intelligence Community (IC). The CSSO is tasked with developing, implementing, and overseeing security programs to ensure adherence to Intelligence Community Directives (ICDs 703, 704, 505, among others), Security Classification Guides (SCGs), and Statements of Work. Key responsibilities encompass Personnel Security, Physical Security, and Operational Security (OPSEC) and Program Protection (P2) planning.

Mar 6, 2026

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Junior Cyber Security Officer

AnaVation LLC

Full-time|On-site|Reston, VA

Join Our Team and Make an Impact At AnaVation, we recognize that in the ever-evolving realm of technology, it is our people who drive success. By investing in exceptional talent, we foster innovation and excellence. We are committed to delivering unparalleled value to our clients and cultivating an engaging workplace culture.Position Overview:AnaVation is on the lookout for a dedicated Junior Cyber Security Officer to bolster our mission-critical operations in Reston, VA. In this role, you will uphold the operational security posture of our information systems, ensuring compliance with established security policies, standards, and procedures. Key Responsibilities:As a Junior Cyber Security Officer, your duties will encompass a range of Information Assurance (IA) and Computer Network Defense (CND) functions. Specific tasks include:Executing various IA and CND functions including systems engineering, audits, infrastructure support, certification, and accreditation.Providing assistance in managing the information assurance program for the organization, including security certification tests, vulnerability management, and customer support.Collaborating on the development and enforcement of security policies and methodologies.Maintaining the operational security posture and assisting with the day-to-day security operations of the information systems.Performing vulnerability and risk assessments to support certification and accreditation processes.Managing configuration of information system security software and hardware.Evaluating security solutions to ensure compliance with classified information processing requirements.Preparing and reviewing critical documentation such as System Security Plans (SSPs) and Risk Assessment Reports.

May 1, 2026

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Senior Cybersecurity Engineer II

MetroStar Systems

Full-time|$165K/yr - $193K/yr|On-site|Reston, VA

Join our innovative team as a Senior Cybersecurity Engineer and take a leading role in protecting our organization's digital assets and sensitive data. We are looking for an enthusiastic professional with extensive experience in cybersecurity, a thorough knowledge of current threats and vulnerabilities, and the capability to implement effective security solutions. In this role, you will design, deploy, and maintain a robust cybersecurity infrastructure while keeping up with the latest trends in the industry.At MetroStar, we believe that exceptional technology services stem from exceptional people. We are passionate about our team members and have a proud 20-year history of cultivating some of the brightest minds in the field. Our commitment to our people is the cornerstone of our mission: to deliver outstanding service with a focus on our customers' needs.If you are ready to drive our mission forward and achieve our goals together, we encourage you to review the job description below!

Mar 24, 2026

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Senior DevSecOps Engineer II

MetroStar Systems

Full-time|$166K/yr - $202K/yr|On-site|Reston, VA

As a Senior DevSecOps Engineer II, you will play a crucial role in collaborating with project leads and cross-functional teams to design, implement, and advise on robust solutions while ensuring compliance with security protocols and industry standards. By staying abreast of emerging trends and threats in cloud and platform technologies, you will actively enhance security defenses through innovative tools and methodologies. Your responsibilities will also include adopting and executing continuous monitoring strategies, performing risk assessments, implementing security controls, identifying vulnerabilities, and supporting incident response efforts to mitigate risks and preserve the integrity of our systems and data. At MetroStar, we believe that exceptional technology services are built upon the foundation of remarkable people. We are dedicated to cultivating a dynamic workforce and have a proven two-decade legacy of assembling the brightest teams. Our future success is predicated upon our unwavering commitment to our employees and our passion for delivering value to our customers. If you envision yourself contributing to our mission and striving for our goals, we encourage you to explore the job description below!

Mar 26, 2026

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Security Operations Center Manager

Agile Defense, Inc.

Full-time|On-site|Reston, VA

Join Agile Defense, Inc. as a Security Operations Center Manager, where you will lead our dedicated team in safeguarding our clients' information and assets. You will oversee day-to-day operations in our security operations center, ensuring effective monitoring, incident response, and security posture management. This role is pivotal in developing and implementing security strategies that protect our organization from cybersecurity threats.

Mar 1, 2026

Security Operations Center Manager

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