NewInformation Systems Security Engineer (ISSE) Edge Science Applications International CorpInformation Systems Security Engineer (ISSE) EdgeSpringfield, VA$120,001–$160,000 / yearWorking closely with program leadership, system owners, developers, ISSMs/ISSOs, enterprise architects, and cybersecurity operations teams, the ISSEs will align enterprise and edge architectures with federal security requirements-including NIST 800‑53, RMF, ICD 503, and DAAPM-and ensure secure, real‑time system operation throughout MAJESTIC's mission landscape. The Enterprise ISSE will design, develop, implement, and validate security architectures for MAJESTIC's core systems and enterprise environments, ensuring security controls are integrated throughout the full engineering lifecycle-from requirements and high‑level architecture through deployment, sustainment, modernization, and ATO maintenance.
NewInformation Systems Security Engineer (ISSE) Architect Science Applications International CorpInformation Systems Security Engineer (ISSE) ArchitectSpringfield, VA$80,001–$120,000 / yearThe ISSE will collaborate closely with program leadership, system owners, developers, ISSMs/ISSOs, enterprise architects, and cybersecurity operations teams to ensure systems meet federal security requirements, including NIST 800‑53, RMF, and customer‑specific A&A frameworks such as ICD 503 and DAAPM. Certifications (CWF Requirements): Candidates must satisfy Cybersecurity Workforce Framework (CWF) ID 652 (Security Architect, Intermediate Level) or 633 (System Security Engineer, Intermediate Level) requirements, as outlined by Navy COOL.
Systems Engineer / Telecom / Network Protocols GIGATEC EngineeringSystems Engineer / Telecom / Network ProtocolsAnnapolis Junction, MDFull timeGuides implementation planning, coordinates with government stakeholders on technical issues, ensures technical integrity of deliverables, and communicates with program teams and senior leadership. All protocol stacks for data transfer, to include but not limited to Routing protocols, Encapsulation, Tunneling and encryption, legacy protocols (i.e. SONET).
Senior Information Systems Security Engineer (ISSE) Amatriot Group, LLCSenior Information Systems Security Engineer (ISSE)Annapolis Junction, MD$150,000–$210,000 / yearImplement security systems by specifying intrusion detection methodologies and equipment, directing equipment and software installation and calibration, preparing preventive and reactive measures, creating, transmitting, and maintaining keys, providing technical support, and completing documentation. This role performs security engineering across the system development lifecycle, supports vulnerability management, integrates cybersecurity requirements across enterprise environments, and ensures development and operational systems are functional and secure.
Systems Integration & Support Engineer LeidosSystems Integration & Support EngineerBethesda, MarylandThe position requires a broad understanding of software, computing hardware, networking, virtualization, and system integration, with particular emphasis on: Virtualization: Familiarity with creating, configuring, and managing Virtual Machines. August 25, 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.
Service Now Developer - Integration Engineer Emergent Technologies IncService Now Developer - Integration EngineerReston, VAFull timeA Bachelor’s or Master’s degree in Computer Science (or a related field) is preferred, along with 11+ years of relevant experience , including: Hands-on experience with ServiceNow, including ITSM, ITOM, and CMDB. Emergent Technologies Inc. is seeking a talented and motivated ServiceNow Developer / Integration Engineer to join our growing technology team in support of a mission-critical Government customer.
Systems Engineer Que Technology GroupSystems EngineerMarylandBachelor’s degree in a technical discipline from an accredited college or university is required; additional four (4) years’ experience may be considered in lieu of degree. Candidate must be willing to learn and be prepared to work with a small, mission-focused team that frequently interacts with other teams, users, and customers.
Lead Virtualization Systems Engineer, Converged Seneca HoldingsLead Virtualization Systems Engineer, ConvergedBeltsville, Maryland$125,000–$140,000 / yearDay-to-day data management and operational support for distributed data systems, including the entire lifecycle including planning; device and component preparation; solution testing; data placement; backup retention, recall, recovery; and deletion. Clear Creek is seeking a highly skilled and self-driven Lead Virtualization Systems Engineer (Converged) to support large-scale enterprise datacenters encompassing over 3,000 virtual machines.
Enterprise Monitoring Engineer – TS/SCI with Polygraph General Dynamics Information TechnologyEnterprise Monitoring Engineer – TS/SCI with PolygraphAnnapolis Junction, MarylandA typical day in this role may include: Providing real-time system monitoring, alerting, and system data collection for all infrastructure services; works with client/server and back-end systems owners to define appropriate monitoring system usage, data collection, and alert thresholds. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available.
Edge Information Systems Security Engineer (ISSE) Huntington Ingalls Industries IncEdge Information Systems Security Engineer (ISSE)Springfield, VA$85,185–$185,000 / yearAdditionally, you will travel up to 25% annually to engage with field sites, perform on site technical reviews, collaborate with local stakeholders, and ensure edge systems are designed, configured, and maintained in accordance with organizational and mission focused security expectations. You will provide expert cybersecurity engineering support to edge system stakeholders-including system owners, information security professionals, system engineers, and administrators-to ensure systems remain in full technical alignment with organizational security requirements.
Field Engineer OST IncField EngineerMc Lean, VADemonstrated ability to think outside the box at an engineering level, developing sound solutions to unanticipated field conditions, and a willingness to go the additional mile to complete the installation and satisfy the customer. Requirements (Years of experience, Education, Certifications): Candidates must meet or exceed the following minimum qualifications: Three to five years of telecommunications, communications systems, field engineering, or similar technical experience.
VoIP Engineer TekSynap CorpVoIP EngineerWashington, DC$100,000–$130,000 / yearThe selected candidate will design, implement, maintain, and optimize enterprise voice communications infrastructure, including VoIP, unified communications, E911 services, and telephony systems supporting mission-critical federal operations throughout the Washington, DC metropolitan area. The salary range displayed is an estimate only and is not a guarantee of compensation or salary, and will be determined on several factors regarding the individual's particular combination of education, knowledge, skills, competencies and experience, as well as contract parameters and organizational requirements.
Senior IT Security Engineer National Public Radio IncSenior IT Security EngineerDCRemote$125,000–$152,000 / yearWe are looking for a proactive security engineer to define secure-by-design frameworks, implement high-impact DevSecOps pipelines across multi-cloud environments (AWS and GCP), and lead critical security reviews for emerging technologies, including artificial intelligence. Network & Endpoint Defense: Deploy, recommend, and test advanced security controls, including Endpoint Detection and Response (EDR), enterprise-level antivirus, and perimeter security for Cisco networking devices.
Lead Unified Comms Engineer - Federal Customer Dell, Inc.Lead Unified Comms Engineer - Federal CustomerMclean, VAFull timeThe Unified Communications Engineer supports Dell Mission Operations by engineering, sustaining, and improving voice and collaboration capabilities used for day-to-day mission execution. This role is responsible for administration, troubleshooting, integration, and lifecycle support of communications platforms and endpoints in a secure environment.
Network Engineer All Levels- -TS/SCI w/ Poly Security Clearance Required Tulzi TechnologiesNetwork Engineer All Levels- -TS/SCI w/ Poly Security Clearance RequiredLaurel, MarylandTulzi Technologies, LLC (Tulzi) prides ourselves on an open, and honest culture in the workplace which builds a morale conducive to inspiring growth on our team, while balancing lifestyle by supporting personal and family goals with flexibility. In lieu of a Bachelor's degree, four (4) additional years of experience in Network Engineering disciplines with a high school diploma.
Junior Red Hat Linux Engineer CommIT Enterprises, IncJunior Red Hat Linux EngineerQuantico, Virginia$110,000–$120,000 / yearFull timeThe Linux Administrator will operate and maintain the infrastructure for the ACAS solution to support network and appliance scanning and configuration assessments and provide training to operators and Information Assurance personnel to maintain and operate the ACAS tool functionality. DoD 8570 IAT III or IAM II (CASP+, CCNP Security, CISA, GSE, SCNA, CISSP [or Associate], CAP, GSLC, CISM, GCED, GCIH, CISO, or HCISPP).
Sr. Security Engineer CoStar GroupSr. Security EngineerArlington, Virginia$115,000–$203,000 / yearWe are seeking a Senior Security Engineer with experience in Network, SaaS, and AI Security to help evolve and safeguard CoStar’s enterprise security posture across network infrastructure, cloud services, SaaS platforms, and emerging AI systems. Assess security risks associated with AI platforms, copilots, and agent-based systems, including model access controls, prompt/data leakage risks, and tool/plugin abuse.
Senior Cloud Platform Engineer Nightwing Intelligence SolutionsSenior Cloud Platform EngineerSterling, Virginia$99,000–$206,000 / yearUse and develop automation (Ansible roles,Terraformmodules, Packer, GitLab CI/CD pipelines, AWS CLI) to provision and configure servers, services, applications, and security controls, and drive best practices for automation across the team. Responsibilities include, but are not limited to, the following: Own the architecture and design of core cloud platform capabilities in AWS GovCloud and Azure, ensuring they meet security, availability, and performance requirements across three networks.
Senior Network Engineer (Engineering Change Proposals) Competitive Range Solutions, LLCSenior Network Engineer (Engineering Change Proposals)Arlington, VAResponsible for delivering high-quality network designs and technical solutions for ECPs and contributing to project documentation such as Engineering Installation Plans (EIPs) and Circuit Installation Plans (CIPs). The Senior Network Engineer plays a crucial role in the planning, developing, and implementing Engineering Change Proposals (ECPs) related to IT infrastructure and network architecture enhancements.
Open Talent Network: Senior AI Platform & Data Engineer Ad HocOpen Talent Network: Senior AI Platform & Data EngineerMc Lean, VARemote$150,000–$190,000 / yearWe partner with these agencies to build new capabilities, deliver products, establish data as a strategic asset for informed decision-making, modernize legacy systems, and build the digital service infrastructure necessary to scale their mission impact. Python (primary language), SQL, Spark/Databricks (for large-scale data processing), Kubernetes/ECS, OpenAPI (for API documentation), experience with vector databases and feature stores.