265 Results for

Online Security Jobs in Reston, VA

Jobs

New!

Dulles, VA1 day ago

Active Security designs, develops, implements, and sustains advanced C5ISR and security solutions to enhance defense and mission capabilities, addressing threats across physical, electronic, cyber, and communications security for commercial and U.S. Government clients. Technical Leadership: Perform complex troubleshooting and diagnostics, including advanced programming and system integration tasks, independently and collaboratively resolving complex issues on-site.

New!

Sterling, VA1 day ago

Customer Site Ownership: Serve as the primary service technician for designated client sites, maintaining regular scheduled on-site service hours and ensuring systems remain operational, compliant, and properly maintained. Requirements:Responsibilities: System Maintenance & Service Support: Perform advanced diagnostics, repairs, and preventive maintenance on integrated security systems including access control, video surveillance, intrusion detection, and supporting infrastructure to ensure reliable system performance.

New!

Sterling, VA1 day ago

Active Security designs, develops, implements, and sustains advanced C5ISR and security solutions to enhance defense and mission capabilities, addressing threats across physical, electronic, cyber, and communications security for commercial and U.S. Government clients. The Project Engineer works closely with project managers, field technicians, and clients to coordinate activities, resolve technical challenges, and maintain project momentum.

New!

Dulles, VA1 day ago

The Security Systems Technician II can operate independently, bringing several years of experience to the field with the ability to perform installations, maintenance, troubleshoot complex issues, lead smaller projects, and assist in training junior technicians. Active Security designs, develops, implements, and sustains advanced C5ISR and security solutions to enhance defense and mission capabilities, addressing threats across physical, electronic, cyber, and communications security for commercial and U.S. Government clients.

New!

Ashburn, VA2 days ago

$18–$20

Security Officers/Security Guards observes and reports activities and incidents at an assigned client site, providing for the security and safety of client property and personnel. The Security Officer position helps maintain a safe and secure environment for our clients by actively monitoring the premises, including patrolling a variety of locations.

New!

Ashburn, VA2 days ago

$17–$22

About Securitas USA: With over 640 local branch managers and approximately 86,000 security officers, Securitas provides unmatched security solutions to meet the specific needs of thousands of businesses. Our service offerings include specialized guarding, mobile guarding, remote guarding, and corporate risk management.

New!

Centreville, VA2 days ago

$21–$21

If your schedule and availability are flexible, and you have retail, food service or hospitality industry background you are a great fit for this role; if not, we will provide you with the training and everything you need for a great introduction to a career in the security industry. The Multi-Site Security Officer position you will be monitoring and patrolling different client sites on a variety of schedules.

New!

Arlington, VA2 days ago

$22–$22

The Armed Security Officer position helps maintain a safe and secure environment for our clients by actively monitoring the premises, including patrolling a variety of locations. Frequently our Armed Security Officers will provide customer service and information to a client’s employees and customers and serve as a physical deterrent.

New!

McLean, VA2 days ago

$21–$21

Reston, VA12 days ago

Strong understanding of network technologies, protocols, systems and equipment to include one or more of the following: SONET/SDH, OTN, MSAN, MSPP, MPLS/IP-MPLS, VoIP, IP Multimedia Services (IMS), DWDM, ROADM, Software Defined Networks (SDN) WAN and LAN, multi fabric networks, mesh networks, Session Border Controllers, fabric management, radio access network, front haul, back haul, BGP, OSPF, ISIS, SIP, 5G/LT/LAN interworking, VoLTE, SRVCC, DRVCC, ETSI MANO, OSS/BSS. Duties: This Network Analyst performs the following core functions: Coordinate with the customer's other multidisciplinary teams to provide timely and accurate network analysis regarding the logical and physical routes of key telecommunications networks within a designated area.

Washington, Washington, DC30+ days ago

$120,000–$155,000 Per Year

Technology moving at the speed of thought” embodies these principles – the need to nimbly utilize the best that information technology offers to meet the business needs of our Federal Government customers. Additional Job Information: TekSynap is a fast growing high-tech company that understands both the pace of technology today and the need to have a comprehensive well planned information management environment.

Fort Belvoir, Virginia22 days ago

Remote

Ashburn, Virginia30+ days ago

Support includes providing real-time incident monitoring, predictive and proactive analysis and reporting, incident resolution and escalation, problem management and resolution, coordinating of events related to network communications, network utilization and availability analysis and reporting. Information System Security Officer (ISSO) acts as the Designated Person(s) assigned to one or more existing FISMA Systems of Record as well as new IT Systems that are slated as new work products to develop an Authority to Operate (ATO) and follow-on Continuous Monitored system.

Washington, Washington, DC14 days ago

$170,000–$220,000 Per Year

Vienna, VA30+ days ago

$110,000–$140,000 Per Year

This may include drafting funding memos (allocations, allotments, apportionments, reclassifications, congressional notifications, etc.), tracking obligation and expenditure data, providing data for briefings and Congressional reports, drafting documents to obligate funds, coordinating within PM and U.S. Department of State regional bureaus and the Department of War, and other regional or functional bureaus as needed on the obligation, expenditure and management of account programs, and other documents necessary to the effective management of their portfolio. Coordinators shall be responsible for reviewing and coordinating various funding case development documents (LOR, LOA, etc.), tracking security assistance expenditure data, providing data for congressional briefs and reports, coordinating within PM, other State bureaus, and the Department of War) on the obligation, expenditure and management of the security assistance programs, and other documents necessary to the effective management of the security assistance accounts.

Vienna, VA30+ days ago

$110,000–$128,000 Per Year

Regular hours for the positions will be the regular hours for the Washington, DC metropolitan area, 8:15 am – 5:00 pm EST; however, positions may be permitted to work alternative work schedules (AWS) as needed and approved, while adhering to the PM Bureau’s core hours, currently 10:00 am to 3:00 pm, and in-person requirements for PM/SA. IBTCI specializes in monitoring, evaluation, research, and learning (MERL) and institutional support across many areas and sectors including, but not limited to, conflict and crisis, democracy and governance, agriculture, economic growth, food security, education, environment, and global health.

Vienna, VA30+ days ago

$57,750–$73,500 Per Year

Washington, DC30+ days ago

Full-time

Ancillary benefits including Basic Life and Accidental Death and Dismemberment (AD&D) Insurance, Voluntary Life and AD&D Insurance, Short-Term Disability Insurance, Long-Term Disability Insurance, Voluntary Accident Insurance, Voluntary Critical Illness Insurance, and Voluntary Hospital Indemnity Insurance. Founded over ten years ago by a Delta Force Sergeant Major and an Army Special Forces Colonel, we are a values-based organization focusing on a camaraderie, service, and excellence culture.

Washington, Washington, DC30+ days ago

Fairfax, Virginia28 days ago

At least 18 years of age; U.S. citizen or legal resident; Possess a high-school diploma, GED, or equivalent; Successful completion of a thorough background check and fingerprinting; No felony convictions or convictions of misdemeanors involving crimes of moral turpitude or gross misconduct; Valid driver's license: must currently possess an appropriate, active, valid motor vehicle operator's license that meets all of GMU's requirements for operating state vehicles and equipment under Mason's Vehicle Use Policy 1411 https://universitypolicy.gmu.edu/policies/vehicle-use/. Responsible for providing security services on campus properties 24 hours a day, responsibilities of Security Officers include: Monitoring University owned or controlled buildings, areas, and property; Performing building lock-downs, unlocks, fire watches, and safety escorts; Ensuring academic offices, labs, and sensitive areas are kept secure; Observing and reporting suspicious activity, including writing incident reports when necessary; and.

Fairfax, Virginia22 days ago

Post-quantum cryptography and quantum-secure systems engineering; Secure and trustworthy AI/ML systems; Quantum communications and quantum network security; Hardware trust, supply-chain assurance, and secure heterogeneous computing (including post-quantum/quantum accelerators); Resilient cyber-physical systems and critical infrastructure in the AI/quantum era; Quantum-cyber threat modeling and adversarial vulnerability in quantum/cryptographic systems; Next-generation wireless/edge/IoT security (5G/6G/AI/quantum integration); Cybersecurity for emerging computing paradigms (neuromorphic, bio-cyber systems, quantum/hybrid computing); Preference will also be given to candidates whose work complements and amplifies the CYSE Department's existing strengths in wireless/5G security, digital forensics, AI, and cyber-physical systems; and. Applicants must have received a PhD in Cyber Security, Engineering, Computer Science or a related field by the start date of the position; Should have demonstrated potential for excellence and productivity in research, academic service, and a commitment to high-quality teaching; Qualified candidates should demonstrate excellence in research (track record or strong potential) and teaching; Committed to interdisciplinary collaboration (across hardware, communications, control systems, AI, quantum technologies); and.

Washington, DC30+ days ago

Ocean Bay, a subsidiary of Three Saints Bay, LLC, and a Federal Government Contractor industry leader, is seeking a Lead Security Support Specialist in Washington, D.C. Position Requirements: Apply online at:https://phg.tbe.taleo.net/phg01/ats/careers/v2/viewRequisition?org=GATEWAYVENT&cws=46&rid=5412.

Charles Town, West Virginia30+ days ago

The employee must regularly lift and/or move up to 10 pounds, frequently lift and/or move up to 25 pounds, and occasionally lift and/or move up to 50 pounds, and must have the ability to push, pull, reach, bend, twist, stoop, stack, crouch, kneel and balance when performing job duties in varying work areas such as confined spaces. We’ve grown to become the leading provider of integrated entertainment, sports content, and casino gaming experiences thanks to our 43 destinations across North America, online sports betting and iCasino via theScore Bet Sportsbook and Casino®.

Gaithersburg, MD8 days ago

One of the most-trusted Integrated Security providers in the DMV is experiencing strong growth in the DC market in 2026 and has an opening for a Senior Service Technician to lead execution on new and existing work! This organization has been providing elite solutions for its customers for over 30 years, and believes the strength lies with its people!

Charles Town, West Virginia11 days ago

We’ve grown to become the leading provider of integrated entertainment, sports content, and casino gaming experiences thanks to our 43 destinations across North America, online sports betting and iCasino via theScore Bet Sportsbook and Casino®. The employee is occasionally exposed to wet and/or humid conditions; moving mechanical parts; high, precarious places; fumes or airborne particles; toxic or caustic chemicals; and risk of electrical shock.

New!

Charles Town, West Virginia6 days ago

New!

Charles Town, West Virginia6 days ago

We’ve grown to become the leading provider of integrated entertainment, sports content, and casino gaming experiences thanks to our 43 destinations across North America, online sports betting and iCasino via theScore Bet Sportsbook and Casino®. While performing the duties of this job, the employee is regularly required to stand; walk; sit; use hands to finger, handle, or feel; reach with hands and arms and talk or hear.

Herndon , Virginia30+ days ago

As part of (SES) Strategic Business Unit you will be part of a team that designs, engineers, integrates, operates and maintains electronic security services inclusive of intrusion detection, access control, biometric authentication, video surveillance, audio visual, it systems, perimeter defense and command and control systems for federal, local and commercial customers across high-growth markets. Data Center Security Installation Program Manager is responsible for assisting with the overall administration, organization, and implementation of large data center electronic security installation projects.

Tysons , Virginia30+ days ago

As part of (SES) Strategic Business Unit you will be part of a team that designs, engineers, integrates, operates and maintains electronic security services inclusive of intrusion detection, access control, biometric authentication, video surveillance, audio visual, it systems, perimeter defense and command and control systems for federal, local and commercial customers across high-growth markets. Develop budgets for projects; assist in the preparation of technical proposals, to include assisting in the design and writing of the scope of work, management plans, work sequence, safety, quality control and commissioning.

District of Columbia, Washington, DC30+ days ago

$104,240–$156,360 Per Year

As part of the SES Strategic Business Unit, you will be part of a team that designs, engineers, integrates, operates and maintains electronic security services to include intrusion detection, access control, biometric authentication, video surveillance, audio visual, IT systems, perimeter defense and command and control systems for federal, local and commercial customers across high-growth markets. Research, prototype, and develop emerging technologies by working closely with industry partners and OEMs to implement the latest and best-in-bread capabilities to meet the customers’ emerging needs.

Tysons , Virginia13 days ago

As part of (SES) Strategic Business Unit you will be part of a team that designs, engineers, integrates, operates and maintains electronic security services inclusive of intrusion detection, access control, biometric authentication, video surveillance, audio visual, it systems, perimeter defense and command and control systems for federal, local and commercial customers across high-growth markets. Develop budgets for projects; assist in the preparation of technical proposals, to include assisting in the design and writing of the scope of work, management plans, work sequence, safety, quality control and commissioning.

Tysons , Virginia30+ days ago

As part of (SES) Strategic Business Unit you will be part of a team that designs, engineers, integrates, operates and maintains electronic security services inclusive of intrusion detection, access control, biometric authentication, video surveillance, audio visual, it systems, perimeter defense and command and control systems for federal, local and commercial customers across high-growth markets. We design, build, operate, and maintain cyber-physical solutions for the nation’s most mission-critical facilities, secure environments, complex infrastructure, and global enterprises.

Tysons , Virginia30+ days ago

As part of (SES) Strategic Business Unit you will be part of a team that designs, engineers, integrates, operates and maintains electronic security services inclusive of intrusion detection, access control, biometric authentication, video surveillance, audio visual, it systems, perimeter defense and command and control systems for federal, local and commercial customers across high-growth markets. Candidates must have proven expertise to effectively manage large projects, to include: construction methods, engineering, resources, estimating, equipment, materials, contract administration, subcontract management, claim negotiations, project controls, finance, and staffing efficiency resources.

Tysons , Virginia13 days ago

As part of (SES) Strategic Business Unit you will be part of a team that designs, engineers, integrates, operates and maintains electronic security services inclusive of intrusion detection, access control, biometric authentication, video surveillance, audio visual, it systems, perimeter defense and command and control systems for federal, local and commercial customers across high-growth markets. Responsibilities: A Data Center Security Installation Project Manager is responsible for assisting with the overall administration, organization, and implementation of large data center electronic security installation projects.

New!

Bethesda, MD2 days ago

Advanced working knowledge of a variety of computer software applications, including Microsoft Office Suite, Outlook, Word, PowerPoint presentations, and Excel spreadsheets. Chenega Analytic Business Solutions (CABS) provides federal agencies and commercial customers with trusted insights into Records and Information Management, Administrative Solutions, Information Technology, Engineering, and Training.

Chantilly, VA30+ days ago

Performs network traffic analysis utilizing raw packet data, net flow, IDS, and custom sensor output as it pertains to the cyber security of communications networks. LT Consulting is seeking an Information Security (INFOSEC) Engineer responsible for maintaining the integrity and security of enterprise-wide cyber systems and networks.

Washington, DC, Washington, DC16 days ago

Process daily requirements in eMASS to include POA&Ms, IAVAs, Control Test Results (Control Correlation Identifiers [CCIs]), Categorization forms, PPSMs, SAPs, SLCMs and Inheritance updates. Experience with DoD processes and procedures, U.S. Navy surface ship systems, AWS/ Azure Government cloud implementation, IATO/ATO testing, documentation preferred.

Mclean, VA20 days ago

Officers must be warm and approachable while staying vigilant—greeting and acknowledging visitors, customers, top clients, and executives, maintaining eye contact, and staying aware of all entrances and surroundings. The Site Supervisor provides operational support for the account to include scheduling, payroll, compliance, post order development, performance metrics tracking, training, employee recognition and inspections.

Bethesda, Maryland12 days ago

Chantilly, VA18 days ago

Full-time

Preferred Qualifications: • Minimum of 5 years of applicable Defense Counterintelligence & Security Agency (DCSA) / Intelligence Community (e.g., NRO, DIA, CIA, etc.) experience in the design, build, documentation and accreditation of classified facilities, to include Sensitive Compartmented Information Facilities (SCIFs) and Special Access Program Facilities (SAPFs). Ability to track equipment status for action at the installation level Additionally, the successful candidate will be required to be an active, creative, eager, and resourceful contributor to the successful growth of HLM Associates.

Mclean, VA26 days ago

Officers must be warm and approachable while staying vigilant—greeting and acknowledging visitors, customers, top clients, and executives, maintaining eye contact, and staying aware of all entrances and surroundings. As a Security Officer – Tactical, physical ability is essential as you will be moving around your entire shift, patrolling environments such as retail stores, airports, detention centers, etc.

Bethesda, MD30+ days ago

Officers must be warm and approachable while staying vigilant—greeting and acknowledging visitors, customers, top clients, and executives, maintaining eye contact, and staying aware of all entrances and surroundings. As a Security Officer – Tactical, physical ability is essential as you will be moving around your entire shift, patrolling environments such as retail stores, airports, detention centers, etc.

Manassas, Virginia30 days ago

Overview: Force Security Solutions a subsidiary of Konica Minolta Business Solutions, provides the highest level of Electronic Security including Intrusion Detection, Access Control and IP Video Surveillance technology. • Conduct security assessments and audits for clients to identify vulnerabilities, risks, and security need...

Alexandria, VA30+ days ago

Conducting security assessments and notifying customers via reports of all necessary lighting issues, non-operable lights, trash that is not disposed of properly, and any other potential areas that could be a breach in security (no fence, damaged fence, overgrown trees or bushes to hide in, etc). Conducting foot patrols of courtyards, management offices, pools, and/or other corridors to ensure that the property is secure and to report any illegal or inappropriate activity, as well as take preventive actions to protect the property and the residents.

Centreville, VA30+ days ago

Conducting security assessments and notifying customers via reports of all necessary lighting issues, non-operational lights, trash that is not disposed of properly, and any other potential areas that could be a breach in security (no fence, damaged fence, overgrown trees or bushes to hide in, etc.). Conducting foot patrols of walking areas in/around courtyards, offices, store fronts, and/or other buildings to ensure that the property is secure and to report any illegal or inappropriate activity, as well as take preventive actions to protect the property and the residents.

Woodbridge, VA30+ days ago

Conducting security assessments and notifying customers via reports of all necessary lighting issues, non-operable lights, trash that is not disposed of properly, and any other potential areas that could be a breach in security (no fence, damaged fence, overgrown trees or bushes to hide in, etc.). Conducting foot patrols of courtyards, management offices, pools, and/or other corridors to ensure that the property is secure and to report any illegal or inappropriate activity, as well as take preventive actions to protect the property and the residents.

Fairfax, Virginia20 days ago

Join Allied Universal in a healthcare location where you will conduct routine patrols, remain visible to help deter security-related incidents, and support patients, visitors, and staff through strong customer service and communication. Support day-to-day operations by maintaining a visible presence, completing assigned reports, and communicating clearly with staff, patients, visitors, and/or first responders during routine and unusual events.

Leesburg, Virginia30+ days ago

Join Allied Universal as an unarmed officer in a healthcare location, where you will conduct routine patrols, remain a visible presence to help to deter security-related incidents, and support patients, visitors, and staff with outstanding customer service and communication. Provide customer service to patients, visitors, staff, and vendors by carrying out security-related procedures, site-specific policies, and/or emergency response activities within a healthcare location.

Ashburn, Virginia28 days ago

Join Allied Universal at a dynamic tech location where you will monitor and patrol assigned areas, remain visible to help deter security-related incidents, and deliver outstanding customer service and communication. Conduct regular and random patrols throughout buildings, offices, entry points, parking areas, and perimeter locations to help identify unusual activity and/or conditions that could impact operations.

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Online Security Jobs in Reston, VA

Lead Security Systems Technician Active Security Consulting LLC

Service Technician – Electronic Security Systems Active Security Consulting LLC

Electronic Security Project Engineer Active Security Consulting LLC

Security Systems Technician II Active Security Consulting LLC

Security Officer (M) Securitas

Open Interviews for Entry Level Security Officers - Offers on the Spot! Securitas

Multi-Site Security Officer Securitas

Multi‑Site Armed Security Officer Securitas

Corporate Security Officer (FM) Securitas

Network Analyst - Active Security Clearance Cadre

Security Engineer TekSynap

Control Validation Security Specialist W/Secret Clearance TekSynap

Information System Security Officer ISSO TekSynap

Security Manager w/TS/SCI TekSynap

Security Assistance Coordinator (Mid-Level) Integrated Business & Technical Consultants

Security Assistance Financial Analyst Integrated Business & Technical Consultants

Security Assistance Coordinator (Junior Level) Integrated Business & Technical Consultants

Residential Security Agent Global Guardian

Director of Safety and Security (Job ID: 2026-3848) The Brookings Institution

Security Officer George Mason University

Open-Rank, Tenured/Tenure-Track Cyber Security Engineering Faculty George Mason University

Lead Security Support Specialist (5412) Three Saints Bay

Security Assistant Shift Manager Hollywood Casino at Charles Town Races

Electronic Security Service Technician WilsonHCG

SECURITY AMBASSADOR-SWING SHIFT Hollywood Casino at Charles Town Races

SECURITY AMBASSADOR - DAY SHIFT Hollywood Casino at Charles Town Races

SECURITY AMBASSADOR - EVENTS Hollywood Casino at Charles Town Races

Senior Data Center Security Installation Program Manager (Project Leader 2) - Herndon, VA M.C. Dean, Inc

Lead Estimator for Data Center Security Installation - Tysons, VA M.C. Dean, Inc

Security Systems Engineer 3 - Washington, DC M.C. Dean, Inc

Estimator for Data Center Security Installation Work (Estimator 2)- Tysons, VA M.C. Dean, Inc

PCD/TOC Security Systems Application Specialist (System Administrator 1)- Tysons, VA M.C. Dean, Inc

Principal Data Center Security Installation Program Manager (Project Leader 3) - Tysons, VA M.C. Dean, Inc

Data Center Security Installation Project Manager (Project Leader 1) - Tysons, VA M.C. Dean, Inc

Physical Security Tech Chenega Corporation

Information Security Engineer LT Consulting

Cyber Security Analyst R&P Technologies, LLC

Security Site Supervisor Gardaworld

Senior Security Engineer NetImpact Strategies

Physical-Technical Security Manager PROVATOHR INC

Armed Security Officer- Flex Gardaworld

Maryland Armed Security Officer Whelan Security

Security Sales Consultant Konica Minolta Business Solutions, U.S.A., Inc.

Unarmed Security/Patrol Officer (Alexandria) Signal of Northern Virginia

Unarmed Security Patrol Officer (Fairfax/Centreville/Herndon/Manassas) Signal of Northern Virginia

Armed Security/Patrol Officer (Woodbridge/Dumfries) Signal of Northern Virginia

Unarmed Security/Patrol Officer (Woodbridge/Lorton/Dumfries) Signal of Northern Virginia

Security Officer - Armed Area Patrol Full Time Allied Universal

Security Officer - Unarmed Patrol Relief Part Time Allied Universal

Security Officer Rover Allied Universal

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