Information Systems Security Engineer (ISSE) Mantis Security CorporationInformation Systems Security Engineer (ISSE)Reston, VADoD 8570 compliance with IASAE Level 3 is required• Three (3) years of experience in scripting languages, Linux/RedHat, and/or Networking AppliancesInformation Systems Security Engineering Professional (ISSEP) and CISSP Certifications are required• Active TS/SCI security clearance with the ability to obtain polygraph is required Nice to Haves :• Skilled in implementing mitigation strategies and how to resolve problems, and to re-test/ re-evaluate systems• Demonstrated experience with DISA Security Technical Implementation Guide (STIG) implementation and Security Content Automation Protocol (SCAP) tool usage• Possess a working knowledge of administrating servers, system and application security threats and vulnerabilities• Experience extending existing applications in areas such as security, monitoring, task automation, continuous integration, deployment, and performance optimization• Demonstrate writing of your own project in scripting/programming (use of Shell scripting, Python, JavaScript, PowerShell) in a Linux or Windows environment to support the various Cyber Security tools and applications required• Provide guidance on vulnerability and malware remediation.• Apply system security engineering expertise in one or more of the following to: system security design process; engineering life cycle; information domain; cross domain solutions; commercial off-the-shelf and government off-the-shelf cryptography; identification; authentication; and authorization; system integration; risk management; intrusion detection; contingency planning; incident handling; configuration control; change management; auditing; certification and accreditation process; principles of IA (confidentiality, integrity, non-repudiation, availability, and access control); and security testing.
Sr. Staff Site Reliability Engineer-Federal, Security Clearance Zscaler IncSr. Staff Site Reliability Engineer-Federal, Security ClearanceVA$140,000–$200,000 / yearThe range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations and could be higher or lower based on a multitude of factors, including job-related skills, experience, and relevant education or training. Zscaler is committed to providing reasonable support (called accommodations or adjustments) in our recruiting processes for candidates who are differently abled, have long term conditions, mental health conditions or sincerely held religious beliefs, or who are neurodivergent or require pregnancy-related support.
Security Product Reverse Engineer Nightwing Intelligence SolutionsSecurity Product Reverse EngineerSterling, VirginiaThe 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.
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.
Senior Specialist Field Engineer, Federal Security CoreWeaveSenior Specialist Field Engineer, Federal SecurityWashington, D.C.$165,000–$220,000 / yearTranslate federal security and compliance requirements collaboratively with our federal compliance team; FedRAMP Moderate/High, FISMA, NIST SP 800-53 and 800-171, DoD Cloud Computing SRG Impact Levels (IL4/IL5/IL6), CMMC, and DISA STIGs into concrete Kubernetes and GPU infrastructure architecture and controls . To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.S.C. § 1157, or (iv) asylee under 8 U.S.C. § 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency.
Information Systems Security Engineer (ISSE) Red Hat Enterprise Linux (RHEL) American Systems CorpInformation Systems Security Engineer (ISSE) Red Hat Enterprise Linux (RHEL)Arlington, VAAMERICAN SYSTEMS, a 100% employee-owned federal contractor, is seeking a highly experienced Information Systems Security Engineer (ISSE) to support Red Hate Enterprise Linux systems in a High Performance Computing (HPC) environment in Arlington, VA. As an Information Systems Security Engineer (ISSE) at AMERICAN SYSTEMS, you will: Design and implement enterprise-level security architectures for RHEL systems in a High Performance Computing (HPC) SAP environment.
Information Systems Security Engineer (ISSE) - Red Hat Enterprise Linux (RHEL) AMERICAN SYSTEMSInformation Systems Security Engineer (ISSE) - Red Hat Enterprise Linux (RHEL)Arlington, VirginiaFull timeOverview: AMERICAN SYSTEMS, a 100% employee-owned federal contractor, is seeking a highly experienced Information Systems Security Engineer (ISSE ) to support Red Hate Enterprise Linux systems in a High Performance Computing (HPC ) environment in Arlington, VA . Responsibilities: As an Information Systems Security Engineer (ISSE) at AMERICAN SYSTEMS, you will: Design and implement enterprise-level security architectures for RHEL systems in a High Performance Computing (HPC) SAP environment.
Information Systems Security Engineer ExcelityInformation Systems Security EngineerHerndon, VirginiaGenerate and maintain the complete security Body of Evidence (BoE) while leading the A&A activities according to the Risk Management Framework (RMF) processes (ICD 503, CNSSI-1253, NIST 800-37, NIST 800-53, etc.) for all multiple information systems. Required Skills: 9+ years supporting Assessment and Authorization (A&A) and information assurance processes and documentation using RMF, BS degree; 7 years of experience with a masters; an additional 4 years of experience required in lieu of a degree.
SW Cyber Security Engineer Glint Tech Solutions LLCSW Cyber Security EngineerReston, VAOur client, a leading healthcare payor, is seeking a mid-level Software Application-focused Cyber Security Engineer with strong AWS Cloud Vulnerability Management and application security testing experience. Glint Tech Solutions is a women-owned global staffing and IT recruiting firm connecting top technical talent with leading enterprise clients across the United States.
Systems Security Engineer (SSE), Journeyman KAIROS IncSystems Security Engineer (SSE), JourneymanPax River, MD$130,000–$145,000 / yearEstablished in July 2013, KAIROS, Inc. is a growing Woman Owned Small Business (WOSB) providing full life cycle Cybersecurity, Program Management, Engineering, Logistics, Additive Manufacturing, and Training and Education services focused on optimizing customers’ program performance and mission through proven methodologies and ethical practices. Lead IPT cybersecurity activities: Initiate, communicate, and coordinate with stakeholders and SMEs to address actions and RFIs required for IPT cybersecurity activities in a timely manner (no actions/RFIs to be stagnant for longer than 2 weeks).
Lead AI Security Engineer Appian CorpLead AI Security EngineerMcLean, VA$150,000–$275,000 / yearGrowth Opportunities: Appian provides a diverse array of growth and development opportunities, including our leadership program tailored for new and aspiring managers, a comprehensive library of specialized department training through Appian University, skills based training, and tuition reimbursement for those aiming to advance their education. Optimize RAG Pipelines: Design, optimize, and maintain production-grade Retrieval-Augmented Generation (RAG) workflows to inject real-time security context, network topology, and historical incident logs into agent prompts.
Systems Engineer 3 - Cisco/Juniper/Arista/Windows/Linux/Kubernetes/Security Captivation SoftwareSystems Engineer 3 - Cisco/Juniper/Arista/Windows/Linux/Kubernetes/SecurityAnnapolis Junction, MD$130,000–$270,000 / yearCandidate must focus on maintaining system integrity, performance, and security for critical client/server environments, demanding strong problem-solving and communication skills. Security Clearance: Must currently hold a Top Secret/SCI U.S. Government security clearance with a favorable Polygraph, therefore all candidates must be a U.S. citizen.
AI Security Engineer AppianAI Security EngineerMclean, VA$100,000–$200,000 / yearEducation: Bachelor's degree in Computer Science, AI, Electrical Engineering, Computer Engineering, or related fields plus at least 2 years of experience developing AI and ML algorithms or technologies, OR a Master's degree in a related field plus at least 1 year of experience. Growth Opportunities: Appian provides a diverse array of growth and development opportunities, including our leadership program tailored for new and aspiring managers, a comprehensive library of specialized department training through Appian University, skills based training, and tuition reimbursement for those aiming to advance their education.
Application Network Services Specialist CACIApplication Network Services SpecialistChantilly, Virginia$75,200–$158,100 / yearJob Title: Application Network Services SpecialistJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Continental USAnticipated Posting End: 12/31/2026 The Opportunity: Pay 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.
Digital Network Exploitation Analyst (DNEA) CymertekDigital Network Exploitation Analyst (DNEA)Annapolis Junction, MarylandCyber Network Analyst, Digital Forensics Analyst, Network Exploitation Specialist, Cyber Operations Analyst, Signals Intelligence Analyst, Threat Intelligence Analyst, Network Vulnerability Analyst, Cybersecurity Engineer, Incident Response Analyst, Intrusion Detection Analyst, etc. Cybersecurity, Computer Science, Information Technology, Data Analytics, Network Engineering, Information Systems, Software Engineering, Electrical Engineering, Intelligence Studies, Cyber Operations, etc.
NewNetwork Intrusion Specialist Science Applications International CorpNetwork Intrusion SpecialistChantilly, VA$160,001–$200,000 / yearSAIC is seeking a Communications Systems Engineer to act as a Network Intrusion Specialist to provide onsite systems engineering and technical advisory (SETA) services in support of an SAIC Prime Program at the National Reconnaissance Office (NRO) in Chantilly, VA. Support Contract Officer Technical Representatives (COTRs) and Developers by coordinating with other acquisition domain SMEs and program stakeholders to develop, modify, and maintain contract documentation.
NewPrincipal OT Cybersecurity / ICS Security Architect Peraton IncPrincipal OT Cybersecurity / ICS Security ArchitectVARemote$135,000–$216,000 / yearPeraton Labs is hiring a Principal OT Cybersecurity / ICS Security Architect - a senior systems architect role bridging operational technology (OT), industrial control systems (ICS), and enterprise IT cybersecurity - to join our Strategic Innovation Group in support of a federal customer''s cybersecurity and OT modernization program for critical infrastructure. As a Principal OT Cybersecurity / ICS Security Architect on our team, you will lead the requirements and solutions-analysis effort for one or more parallel workstreams of the customer''s modernization program, spanning core capability areas such as access control, security monitoring, and asset and vulnerability management.
Cloud Security Assessor Fusion TechnologyCloud Security AssessorWashington, DCFull timeFusion Technology is a performance-driven HUBZone Small Business concern residing in the heart of the beautiful mountainsides of West Virginia, steps away from the Federal Bureau of Investigation's Criminal Justice Information Services Division's Headquarters. Founded in 2007 by an Engineer-by-trade, Fusion Technology dedicates our valuable resources to providing comprehensive IT services and solutions to mission-critical US Government programs and the Intel Community.
Senior Hybrid Network Engineer ANDURIL INDUSTRIESSenior Hybrid Network EngineerReston, VA$191,000–$253,000 / yearYou'll ensure on-prem nodes mirror cloud architecture at small scale, keep operating through Degraded, Disconnected, Intermittent, and Limited (DDIL) conditions, and reconcile cleanly with the hub on reconnect - owning everything from identity federation and degraded auth to data reconciliation, config-drift automation, and DDIL reliability testing. Identity federation & degraded auth - extend centralized Keycloak/LDAP identity to disconnected edge; cached-credential authentication when the hub is unreachable; propagate RBAC-by-operation/group to spokes.
NewPrincipal Network Cloud Communications Northrop Grumman CorpPrincipal Network Cloud Communicationslinthicum, MD$89,400–$155,400 / yearThe responsibilities of this role include, but are not limited to, the following: Perform advanced network administration and engineering activities in support of classified government contracts, including design, implementation, hardening, troubleshooting, and sustainment of infrastructure supporting Microsoft Azure - Government Secret Cloud and AWS Government Secret Cloud, and air-gapped classified enclaves. The selected candidate will support the design, integration, security, sustainment, and operational performance of classified network environments spanning Microsoft Azure - Government Secret Cloud and AWS Government Secret Cloud, and the connectivity from company air-gapped classified networks into enterprise and program-specific enclaves.