254 Results for

Online Security Jobs in McLean, VA

Jobs

McLean, VA30+ days ago

$70–$75 Per Hour
Contractor

Working knowledge of networking, (routing, DNS, common ports, protocols, and firewalls) Needs to be organized and have the capability to multitask by working multiple problems, tasks and still seeing tasks through to closure working with all type of endpoint technologies. Familiar with industry security regulations and frameworks (MITRE Attack Framework, NIST, CIS CSC, etc.) General understanding of key IT components – Secure LDAP, Networking, firewall, load balancing, Federated Identity.

New!

Gaithersburg, MD1 day 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!

New!

Reston, VA1 day ago

$175,000–$240,000

The contractors will work on complex, in-person cyber security and knowledge management tasks with minimal or no access to online reference materials, requiring strong technical expertise and problem-solving skills limited access to on line reference materials. Key responsibilities will include developing and maintaining systems and tools in the Sponsor's environment, supporting the development of new tools and systems that align with the Sponsor's goals, and contributing to the creation of the Sponsor's overarching data acquisition and exploitation strategy.

New!

Reston, VA5 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, DC7 days ago

Fort Belvoir, Virginia15 days ago

Remote

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.

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, DC30+ days ago

$120,000–$155,000 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, DC29 days ago

Fairfax, Virginia21 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, Virginia15 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.

Vienna, VA28 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, VA28 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, VA28 days ago

$57,750–$73,500 Per Year

New!

Bethesda, Maryland5 days ago

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.

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 , 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.

New!

Tysons , Virginia6 days ago

New!

Tysons , Virginia6 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.

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.

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.

Baltimore , Maryland30 days ago

$75,520–$113,280 Per Year

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.

Linthicum Heights, Maryland30+ days ago

$121,000–$191,000 Per Year

Quantico, Virginia14 days ago

The ISSE integrates cybersecurity controls into system architectures, supports RMF and NIST compliance, performs vulnerability assessments, and develops security engineering solutions to protect sensitive data and infrastructure. Responsibilities of the contract as a whole include providing comprehensive Information Systems Security Officer (ISSO) and Information Systems Security Engineer (ISSE) support to address evolving cybersecurity needs by providing Information Security as a Service (ISaaS).

Quantico, Virginia14 days ago

Responsibilities of the contract as a whole include providing comprehensive Information Systems Security Officer (ISSO) and Information Systems Security Engineer (ISSE) support to address evolving cybersecurity needs by providing Information Security as a Service (ISaaS). ISSOs coordinate with technical teams, leadership, and auditors to protect sensitive data, maintain operational security, and support continuous monitoring activities across enterprise environments.

Quantico, Virginia14 days ago

Washington, DC, Washington, DC9 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, VA13 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.

Annapolis Junction, MD30+ days ago

Full-time

Bachelor’s degree in System Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or related discipline from an accredited college or university is required and (10 - 14) years experience as an ISSE / ISSO on programs and contracts of similar scope, type, and complexity within the Federal Government is required. If you are looking to join a company that provides amazing benefits, a healthy work-life balance, competitive salaries, and talented subject matter experts, consider joining our team!

Chantilly, VA11 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, VA19 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, Virginia23 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...

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.

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.

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.

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.

Arlington, Virginia19 days ago

Join Allied Universal as an Unarmed Patrol Officer at a dynamic technology-focused location, where you will conduct routine patrols, remain visible to help deter security-related incidents, and deliver outstanding customer service and communication. Provide customer service to site personnel, visitors, and/or vendors while carrying out security-related procedures, location-specific policies, and when appropriate, emergency response activities.

Arlington, Virginia20 days ago

Join Allied Universal as an Unarmed Patrol Officer at a commercial real estate location, where you will conduct routine patrols, maintain a visible presence to help deter security-related incidents, and deliver exceptional customer service and communication. Provide customer service to tenants, visitors, and/or staff by carrying out security-related procedures, site-specific policies, and when appropriate, emergency response activities at a commercial real estate location.

Chantilly, Virginia18 days ago

Join Allied Universal at a fast-paced logistics and distribution location as an unarmed officer, where you will monitor activity, conduct routine patrols, and help to deter security-related incidents through a visible presence. Conduct regular and random patrols throughout loading areas, warehouses, trailer yards, parking areas, and perimeter points to help to deter unauthorized activity and/or unusual behavior.

Fairfax, Virginia12 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.

Chantilly, Virginia16 days ago

Join Allied Universal at a premier commercial real estate location as an unarmed patrol officer, where you will monitor assigned areas, conduct routine patrols, maintain a visible presence to help discourage security-related incidents, and deliver outstanding customer service and communication. Conduct regular and random patrols throughout the building, common areas, parking areas, and perimeter to help to deter unauthorized activity and identify maintenance, access control, and/or life-support system concerns.

Ashburn, Virginia22 days ago

Join Allied Universal as an Armed Patrol Officer in a government location, where you will monitor and patrol assigned areas, maintain a visible presence to help deter security-related incidents, and support a professional environment through strong communication and customer service. Provide customer service to students, staff, visitors, and/or vendors by following site-specific procedures, access protocols, and emergency response activities at a government education location.

Chantilly, Virginia12 days ago

Join Allied Universal as an Unarmed Patrol Officer in a fast-paced logistics and distribution location, where you will monitor assigned areas, conduct routine patrols, and help to deter security-related incidents through a visible presence. Provide customer service to employees, visitors, and/or drivers by carrying out security-related procedures, site-specific policies, and when appropriate, emergency response activities at a logistics and distribution location.

New!

Sterling, Virginia6 days ago

Join Allied Universal as an Unarmed Patrol Officer in a healthcare location, where you will conduct routine patrols, maintain a visible presence to help reduce security-related incidents, and support patients, visitors, and staff with outstanding customer service and communication. Provide customer service to patients, visitors, staff, and/or vendors by carrying out security-related procedures, location-specific policies, and when appropriate, emergency response activities in a healthcare location.

McLean, Virginia15 days ago

Join Allied Universal as a Dispatch professional at a dynamic technology-focused location, where you will monitor communication systems, coordinate incident response, and support security-related operations through clear communication and quick decision-making. In this fast-paced role, you will help maintain site awareness, support teams across the location, and deliver a people-first experience grounded in teamwork, integrity, and an agile, reliable, innovative approach.

New!

Sterling, Virginia1 day ago

Join Allied Universal at a dynamic technology location where you will monitor and patrol assigned areas, maintain a visible presence to help to deter security-related incidents, and support access activity with strong customer service and communication. Provide customer service to personnel, visitors, and/or contractors by carrying out security-related procedures, site-specific policies, and when appropriate, emergency response activities at a technology-focused location.

McLean, Virginia20 days ago

Join Allied Universal at a dynamic tech and communications location where you will monitor assigned areas, conduct routine patrols, and remain visible to help discourage security-related incidents. As a Security Officer with Active Clearance Driver Patrol in Mc Lean, VA, you will serve and safeguard clients in a range of industries such as Tech/Media/Telecom, and more.

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Online Security Jobs in McLean, VA

Security Engineer Specialist Pyramid, Inc

Electronic Security Service Technician WilsonHCG

Cyber Security Engineer (Bid role starting in 8-10 weeks) TS/SCI w/ Poly Leading Path Consulting

Network Analyst - Active Security Clearance Cadre

Security Manager w/TS/SCI TekSynap

Control Validation Security Specialist W/Secret Clearance TekSynap

Information System Security Officer ISSO TekSynap

Security Engineer TekSynap

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

Security Assistance Financial Analyst Integrated Business & Technical Consultants

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

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

Senior Security Engineer NetImpact Strategies

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

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

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

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

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

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

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

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

Senior Information Systems Security Engineer Viasat, Inc.

Information System Security Engineer (ISSE) - SME (Cloud-based) W/Top Secret Clearance TekSynap

Information System Security Officer (ISSO) - Sr W/Top Secret Clearance TekSynap

Information System Security Officer (ISSO) - Sr (Cloud) W/Top Secret Clearance TekSynap

Information System Security Engineer (ISSE) - SR W/Top Secret Clearance TekSynap

Cyber Security Analyst R&P Technologies, LLC

Security Site Supervisor Gardaworld

Information Systems Security Engineer Peterson Technologies

Physical-Technical Security Manager PROVATOHR INC

Armed Security Officer- Flex Gardaworld

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

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

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

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

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

Security Officer Roving - DoD Secret Clearance Allied Universal

Security Officer - DoD Secret Clearance required Allied Universal

Security Officer Part Time Patrol Console Allied Universal

Security Officer - Armed Area Patrol Full Time Allied Universal

Security Officer Patrol Duty with Active Clearance Allied Universal

Security Officer - Armed Active Patrol Full Time Allied Universal

Security Officer Part Time Allied Universal

Security Officer - Medical Campus Patrol Part Time Allied Universal

Security Officer DoD Secret Clearance require Allied Universal

Security Officer Allied Universal

Security Officer with Active Clearance Allied Universal

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