Sr. Staff Security Engineer - AI, Vmr, Offensive Security Geico InsuranceSr. Staff Security Engineer - AI, Vmr, Offensive SecurityBethesda, MD$120,000–$260,000 / yearThis role blends deep security engineering expertise with strong architectural leadership, hands-on experience, leveraging frontier AI models for security, drive customer success, and provide advisory to senior executive leaders. You are equally comfortable advising executive leadership as you are designing and building secure systems, bringing a rare blend of strategic influence and deep engineering execution to elevate the organization's security posture.
Full Stack Infrastructure Engineer (Security Remediation Pipeline - AWS Cloud Environment Specialist) Nightwing Intelligence SolutionsFull Stack Infrastructure Engineer (Security Remediation Pipeline - AWS Cloud Environment Specialist)Sterling, VirginiaNightwing is supporting a U.S. Government customer on a large mission critical development and sustainment program to sustain and operate a network operations environment, including introducing new cyber capabilities to address emerging threats. Cyber Offense and Defense Experts (CODEX) is seeking a skilled Full Stack Infrastructure Engineer with expertise and focus on automated patching and security updates in AWS Cloud production and development environments.
NewNetwork Engineer MAXISIQ, Inc.Network EngineerMcLean, VAObtained (active or past) Cisco Certified Network Professional (CCNP) or Juniper Network Certified Internet Professional (JNCIP) certifications, or have equivalent experience in designing, implementing and managing multivendor LAN and WAN networks. MAXISIQ is seeking engineering professionals to support network engineering efforts in a fast-paced, high-visibility environment supporting multiple mission networks.
NewEDP Platform Engineer Custom Software Systems, Inc.EDP Platform EngineerWashington, DCJob Description Custom Software Systems Inc. is seeking a senior engineer to deliver database server administration for our client's on-premises SQL Server and PostgreSQL environments as automated, FISMA-compliant code — supporting the PostgreSQL ATO, cloud-readiness, and platform modernization. Design and implement CI/CD pipelines in GitLab for database server and instance builds, version upgrades, patching, cumulative updates, and configuration changes across SQL Server and PostgreSQL server enterprise service offerings.
NewNetwork Engineer *Active Top Secret Required* Tenacity Solutions LLCNetwork Engineer *Active Top Secret Required*Washington, DCThe selected candidate will operate within a Secure Compartmented Information Facility (SCIF) and be responsible for ensuring the reliability, security, and performance of Treasury’s classified network infrastructure supporting the Treasury Foreign Intelligence Network (TFIN). Support secure Video Teleconferencing (VTC) services, including network connectivity, firewall traversal, Quality of Service (QoS), and coordination with system and VTC support teams.
Senior Field Service Engineer - Electronic Security ONE DIVERSIFIED, LLCSenior Field Service Engineer - Electronic SecurityWashington, DCIndustry-recognized certifications in access control or video management systems (e.g., Lenel, Milestone, CCure 9000, DMP, Honeywell, etc.).Hands-on experience with enterprise-level networking and IP-based ESS architectures, including network configuration, IP addressing, routing, device connectivity, and troubleshooting of networked security devices. Within our Electronic Security Solutions (ESS) team, we go beyond traditional security, engineering integrated electronic security systems including IP-based access control, video surveillance and intrusion detection systems that safeguard people, assets and operations.
NewSystems Engineer - Active Security Clearance CadreSystems Engineer - Active Security ClearanceReston, VAFull timeKnowledge of and hands on experience implementing IT and Cyber Security best practicesAbility to assess emerging technologies, determine their impact on corporate systems and incorporate them into technical plansStrong analytical and problem-solving skills; demonstrated ability to analyze complex situations, determine course of action and act promptly and effectively when problems ariseDemonstrated outstanding interpersonal skills and strong verbal and written communications skills Desired Qualifications:Active TS/SCI with poly with most recent BI/Poly dates within the last five yearsExperience building, deploying, maintaining, Windows and RedHat/CentoS serversExperience building, deploying, maintaining, Citrix VDI DesktopsKnowledge and hands on experience with Microsoft Azure, and Azure Stack HubExperience building, deploying, maintaining, Atlassian products such as JIRA and ConfluenceExperience building, deploying, maintaining, Microsoft ExchangeExperience building, deploying, maintaining clusters, load balancers, multi-datacenter applicationsExperience with Cisco Application Centric Infrastructure (ACI)Experience designing, building, deploying, and maintaining sensitive networksExperience with Enterprise database platforms such as MS SQL Server and Oracle databasesExperience with One Way Transfer Solutions and data flow managementKnowledge of SIEM and security analytical technologies (e.g. Splunk, pcap, Netflow, etc)Experience with Active Directory and identity managementExperience with hyper-converged infrastructure such as Cisco HX, Microsoft Storage Spaces DirectKnowledge of DevOps/DevSecOps methodologies and tools.
Security Product Reverse Engineer Nightwing Intelligence SolutionsSecurity Product Reverse EngineerSterling, Virginia$122,000–$253,000 / yearThe ideal candidate will bring deep expertise in reverse engineering, vulnerability research, and low-level system analysis across modern operating systems and security products. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization.
Director, AI Security Platform Engineer MindlanceDirector, AI Security Platform EngineerBethesda, MDRemoteThe Director, AI Security Platform Engineer will serve as a player-coach engineering leader responsible for defining, building, and evolving a multi-service security compliance platform that serves as the connective tissue across the AI security program while leading and growing the small, nimble team that builds it. Cross-Organizational Technical Leadership: Coordinate across enterprise architecture, security governance, security operations, and compliance teams to define integration contracts, data flow agreements, and adoption roadmaps influencing through working code and design quality, not just presentations.
Cloud Cyber Engineer CACICloud Cyber EngineerSterling, Virginia$75,200–$158,100 / yearThe right candidate will understand software development, system administration, networking, and security and be able to take a holistic systems level approach to influence how we build our applications to meet the higher level security requirements associated with a system that bridges security domains, as well as someone who can help the software engineers understand zero trust architecture for a multi-releasability domain. Job Title: Cloud Cyber EngineerJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCI with PolygraphEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Continental USAnticipated Posting End: 9/30/2026 The Opportunity:
Data Center Engineer CACIData Center EngineerChantilly, Virginia$103,800–$218,100 / yearPay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Job Title: Data Center EngineerJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Continental US* * * The Opportunity:
NewAI Engineer WISETEK PROVIDERS INCAI EngineerDunn Loring, VAEssential Job Functions: Architect and Implement AI Solutions Design and build RAG pipelines using Azure AI/Search and vector databases: chunking, embeddings, hybrid/semantic ranking, re-ranking, evaluation, and citation display. Support multiple LLMs and modalities: Azure OpenAI, Llama (Meta), Claude, etc., and task-specific OSS models (vision, speech), with policy-driven model routing for performance, safety, and cost.
System Engineer- Cyber Security Engineering Focus EsriSystem Engineer- Cyber Security Engineering FocusVienna, VirginiaYou'll work closely with other system engineers, administrators, and program teams to ensure systems are built, assessed, and operated in compliance with DoD and NIST requirements. From managing RMF and ATO packages to driving vulnerability remediation and system hardening, this role is central to maintaining secure, mission-ready systems throughout their lifecycle.
Engineer, Security & Identity MLBEngineer, Security & IdentityWashington, District of ColumbiaReporting to the Director, IT Operations, the Security & Identity Engineer is the senior IT Operations staff member responsible for implementing, maintaining, and continuously improving the organization’s cybersecurity and identity management capabilities across all enterprise systems. The Engineer advances the organization’s Zero Trust security model, secures cloud and SaaS environments, enables safe adoption of AI and automation, and serves as the senior escalation point and design authority for all cybersecurity and identity matters.
Staff Security Engineer - Vulnerability Management Geico InsuranceStaff Security Engineer - Vulnerability ManagementBethesda, MD$110,000–$230,000 / yearSuccess in this role requires independent leadership, strong judgment, and the ability to consistently drive high-quality outcomes while influencing teams across infrastructure, product, and engineering. Strong data mining and analytical capabilities with exceptional SQL skills; ability to query, transform, and analyze large security datasets to derive actionable insights and drive decision-making.
Senior Application Security Engineer NordstromSenior Application Security EngineerWashingtonFor Los Angeles or San Francisco applicants: Nordstrom is required to inform you that we conduct background checks after conditional offer and consider qualified applicants with criminal histories in a manner consistent with legal requirements per Los Angeles, Cal. 4+ years in application security, secure software development, or a closely related field, with a bachelor’s or master’s in Computer Science, Information Security, Cybersecurity, or a related field, or equivalent experience.
Security Engineer - Junior BDR Solutions LLCSecurity Engineer - JuniorHerndon, VARemote$60,000–$110,000 / yearCompensation decisions depend on a wide range of factors, including but not limited to location, skill sets, experience and training, security clearances, licensure and certifications, and other business and organizational needs. Tools and Platforms: AWS security services (IAM, GuardDuty, Security Hub, CloudTrail, Config), Vulnerability scanning tools (Tenable, Qualys).
Systems Engineer Azure Endpoint Management CbSystems Engineer Azure Endpoint ManagementFt Belvoir, Virginia$190,000–$218,000 / yearThe ideal candidate is an experienced cloud engineer who thrives in fast-paced environments, enjoys solving complex technical challenges, and is capable of developing greenfield cloud solutions while collaborating with cross-functional engineering and cybersecurity teams. This position requires both strategic cloud architecture expertise and hands-on engineering experience in designing and deploying modern cloud infrastructure, endpoint management, and security solutions within highly secure enterprise environments.
Cyber Security Development Engineer - JobID-0255 Innovative Defense TechnologiesCyber Security Development Engineer - JobID-0255Arlington, Virginia$90,000–$184,000 / yearThe Cyber Security Development Engineer is a highly technical role focused on ensuring the security and resilience of our software and systems and will be responsible for designing, building, and maintaining secure systems, applications, and infrastructure to protect against cyber threats. About The Role: Innovative Defense Technologies (IDT), a leading defense technology company, is seeking a Cyber Security Development Engineer to be part of our Advanced Capabilities team and based out of our Arlington, VA location.
Principal Endpoint Security Systems Engineer LeidosPrincipal Endpoint Security Systems EngineerBethesda, Maryland$131,300–$237,350 / yearWorking in a hybrid cloud/on-prem mission environment the engineer will support integration of Linux and Windows hosted mission systems with the endpoint security product and maintaining the scan policies to ensure proper protection of mission systems from external threats. January 21, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.