256 Results for

Online Security Jobs in Adelphi, MD

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!

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.

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, 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.

Washington, Washington, DC30+ days ago

$120,000–$155,000 Per Year

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!

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

$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

$57,750–$73,500 Per Year

Annapolis, MARYLAND30+ days ago

This localized opening gives candidates in Annapolis a simple way to take part in paid research sessions while helping companies understand real consumer opinions. This Annapolis, MD posting keeps the job meaning consistent with the broader AFG research participant role while expanding visibility into additional local markets.

Baltimore, Maryland8 days ago

Position Summary: As a Security Officer, your duties encompass conducting unarmed patrols both indoors and outdoors, managing access points, supervising CCTV and alarm systems, preparing reports, discouraging criminal behavior, and fulfilling other responsibilities as outlined in directives. While performing the duties of this job, the employee must be able to sit, stand, and walk for variable amounts of time throughout an assigned shift; use hands to finger, handle or feel objects, tools or controls; reach with hands and arms; climb stairs; occasionally stoop, kneel, or crouch.

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.

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. 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.

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.

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

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

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.

New!

Bethesda, Maryland5 days ago

Linthicum Heights, Maryland30+ days ago

$121,000–$191,000 Per Year

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!

Baltimore, Maryland8 days ago

Although this role is primarily Welcome- and Security-focused, the analyst will collaborate closely with the broader Patient Experience team and may contribute to initiatives, cross-coverage, and optimization efforts across all Epic patient-facing applications including MyChart, Cheers, Hello World, and Cadence. This role focuses on optimizing end‑to‑end digital patient journeys through system configuration, integrations, and workflow automation, delivering an improved user experience and measurable efficiency gains that support modern, patient‑centered healthcare delivery.

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...

Herndon, Virginia26 days ago

Join Allied Universal at a professional commercial real estate location where you will serve at the front desk, greet visitors, manage access activity, and support security-related procedures with strong customer service and communication. Provide customer service to tenants, visitors, and/or contractors by carrying out site-specific procedures, front desk protocols, and when appropriate, emergency response activities at a commercial real estate location.

Ashburn, Virginia7 days ago

Join Allied Universal at a premier financial institution location, where you will help manage access control, monitor entry activity, conduct routine patrols, and support a professional, welcoming environment. Overview: Allied Universal®, North America’s leading security and facility services company, offers rewarding careers that provide you a sense of purpose.

Fairfax, Virginia16 days ago

Join Allied Universal as an Armed Patrol Officer at a healthcare location, where you will conduct routine patrols, remain visible to help discourage security-related incidents, and support staff, patients, and visitors with exceptional customer service and communication. Respond to incidents, disturbances, and critical situations in a calm, problem-solving manner, including documenting observations and communicating with site contacts, first responders, and/or Allied Universal leadership as needed.

Ashburn, Virginia30+ days ago

Join Allied Universal as an Unarmed Patrol Officer at a dynamic commercial real estate location, where you will monitor assigned areas, conduct routine patrols, and remain visible to help discourage security-related incidents. Support daily operations at a commercial real estate location by completing incident reports, maintaining assigned post duties, and assisting with emergency response activities when appropriate.

New!

Laurel, Maryland6 days ago

Join Allied Universal as an unarmed officer in a commercial real estate 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 foot patrols throughout commercial real estate common areas, parking areas, entrances, and the perimeter to help to deter unwanted activity.

Chantilly, Virginia12 days ago

Join Allied Universal as an Unarmed Patrol Officer in a healthcare location, where you will conduct routine patrols, remain visible to help discourage security-related incidents, and support staff, patients, and visitors with exceptional customer service and communication. Assist with routine security-related reporting, note taking, and communication regarding incidents, maintenance concerns, and/or policy-related issues observed during patrols and daily activities.

New!

Arlington, Virginia5 days ago

Join Allied Universal as a Front Desk Officer at a dynamic tech location, where you will welcome guests, manage access, monitor activity, and support a professional environment through strong communication and customer service. Support a professional front desk presence within a fast-paced corporate location while helping to deter unauthorized access through attentive observation and consistent procedure follow-through.

Chantilly, Virginia30 days ago

Join Allied Universal as an unarmed patrol officer at a fast-paced logistics and distribution location, where you will monitor assigned areas, conduct routine patrols, remain visible to help discourage security-related incidents, and deliver outstanding customer service and communication. Conduct regular and random patrols throughout warehouses, loading areas, parking areas, trailer yards, and perimeter locations to help to deter unauthorized activity and/or unusual conditions.

Reston, Virginia26 days ago

Join Allied Universal as an armed officer in a healthcare location, where you will monitor and patrol assigned areas, remain visible to help reduce security-related incidents, and deliver outstanding customer service and communication. Conduct regular and random foot and/or vehicle patrols throughout buildings, parking areas, entrances, and perimeter locations to help to deter unauthorized activity and identify security-related concerns.

Sterling, Virginia27 days ago

In this unarmed role, you will support access awareness, deliver outstanding customer service and communication, and contribute to a caring, agile, and reliable team that values innovation, teamwork, and integrity every day. Conduct regular and random patrols throughout the location, including exterior areas, parking areas, entry points, and perimeter spaces, to help identify unusual activity and/or security-related concerns.

Reston, Virginia28 days ago

Join Allied Universal as an Unarmed Patrol Officer in a healthcare location, where you will monitor and patrol assigned areas, stay visible to help deter security-related incidents, and support patients, visitors, and staff with exceptional customer service and communication. Provide customer service to staff, patients, and visitors by carrying out assigned security-related procedures, site-specific policies, and/or emergency response activities within a healthcare location.

Sterling, Virginia29 days ago

Join Allied Universal as an Unarmed Patrol Officer at a dynamic food and beverage location, where you will conduct routine patrols, remain visible to help discourage security-related incidents, and support access activities with strong customer service and communication. Monitor access points and help to deter unauthorized entry, trespassing, and other security-related concerns involving employees, visitors, and delivery personnel.

McLean, Virginia21 days ago

Join Allied Universal at a high-end retail location, where you will monitor and patrol assigned areas, remain visible to help deter security-related incidents, and deliver exceptional customer service and communication. Overview: Allied Universal®, North America’s leading security and facility services company, offers rewarding careers that provide you a sense of purpose.

New!

Fairfax, Virginia6 days ago

Join Allied Universal as an Armed Patrol Officer in a healthcare location, where you will monitor and patrol assigned areas, remain visible to help reduce security-related incidents, and support staff, patients, and visitors with outstanding customer service and communication. Provide customer service to patients, visitors, and/or staff by carrying out site-specific procedures, access-related activities, and when appropriate, emergency response actions within a healthcare location.

Reston, Virginia8 days ago

Join Allied Universal as an Unarmed Patrol Officer in an aero and defense location, where you will conduct routine patrols, maintain a visible presence, and help to deter security-related incidents. Support site operations by observing sensitive areas, following post orders, and preparing accurate logs, reports, and incident documentation before, during, and after patrol activities.

Sterling, Virginia12 days ago

Join Allied Universal as an unarmed patrol officer in a dynamic tech and telecommunications location, where you will monitor assigned areas, conduct routine patrols, and remain visible to help discourage security-related incidents. Respond to incidents, alarms, and/or critical situations in a calm, problem-solving manner, documenting security-related concerns and communicating observations to site contacts and Allied Universal leadership.

Ashburn, Virginia27 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.

Resume Resources

Free Resume Templates Free Resume Builder

Get noticed by top employers!

Upload your resume to let employers know you're open to Online Security job opportunities. Plus, receive relevant job recommendations in your inbox.

Online Security Jobs in Adelphi, MD

Security Engineer Specialist Pyramid, Inc

Network Analyst - Active Security Clearance Cadre

Information System Security Officer ISSO TekSynap

Security Manager w/TS/SCI TekSynap

Control Validation Security Specialist W/Secret Clearance TekSynap

Security Engineer TekSynap

Electronic Security Service Technician WilsonHCG

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

Paid Online Research Participant AFG

DMAC - Commercial Security Officer (Unarmed) Tarian

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

Estimator for Data Center Security Installation Work (Estimator 2)- Tysons, VA 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

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

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

PCD/TOC Security Systems Application Specialist (System Administrator 1)- 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 Security Engineer NetImpact Strategies

Senior Information Systems Security Engineer Viasat, Inc.

Cyber Security Analyst R&P Technologies, LLC

Security Site Supervisor Gardaworld

Information Systems Security Engineer Peterson Technologies

SYSTEMS ANALYST I - CERT (Certified in Epic Welcome or Security) Mercy Medical Center

Physical-Technical Security Manager PROVATOHR INC

Armed Security Officer- Flex Gardaworld

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

Security Officer - Unarmed Reception Access Specialist Part Time Allied Universal

Security Officer - Entry Control Full Time Allied Universal

Security Guard - Armed Patrol Part Time Allied Universal

Security Officer Part Time Allied Universal

Security Officer Shopping Center Patrol Driver Allied Universal

Security Officer Part Time - Overnights Allied Universal

Security Officer - Visitor Services Desk Part Time Allied Universal

Security Officer - Unarmed Customer Service Patrol Part Time Allied Universal

Security Officer - Armed Patrol Part Time Allied Universal

Security Officer Unarmed Patrol with CPR Allied Universal

Security Officer - Unarmed Patrol Checks Part Time Allied Universal

Security Officer Patrol Reporting Specialist Allied Universal

Security Officer Part-Time - Morning Shift Allied Universal

FT Security Officer Armed Allied Universal

Security Officer Patrol Detail with Active Clearance Allied Universal

Security Guard Allied Universal

Security Officer - Armed Active Patrol Full Time Allied Universal

Resume Resources