Systems Engineer/Administrator Kaiva CorpSystems Engineer/AdministratorArlington, VAFull timeManage and maintain Microsoft 365 services such as Microsoft Intune, Entra admin center with Entra Connect for cloud synchronization, Exchange admin center for mail and mailbox administration, Microsoft Defender, and Microsoft Purview. As a Systems Engineer/Administrator, you will be responsible for ensuring the secure and efficient operation of servers and systems in a variety of environments, including on-premises and cloud-based Microsoft products within our Federal Government Customer's environment.
NewSoftware Systems Integration Engineer | Clearance | Linux/Windows JobotSoftware Systems Integration Engineer | Clearance | Linux/WindowsManassas, VA$80,000–$115,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Integrating and testing software deliveries, verifying bug fixes, and performing regression testing across multiple hardware and operating system configurations.
NewSoftware Systems Integration Engineer - RHEL/Windows - Secret Clearance Required JobotSoftware Systems Integration Engineer - RHEL/Windows - Secret Clearance RequiredManassas, VA$90,000–$115,000 / yearInformation collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal. Integrating and testing software deliveries, verifying bug fixes, and performing regression testing across multiple hardware and operating system configurations.
ISSO/Systems Security Engineer Bowhead / UIC Technical ServicesISSO/Systems Security EngineerDahlgren, VA$130,000–$150,000 / yearKnowledge of system and application security threats and vulnerabilities (e.g., buffer overflow, mobile code, cross-site scripting, Procedural Language/Structured Query Language [PL/SQL] and injections, race conditions, covert channel, replay, return-oriented attacks, malicious code). The ISSO/Systems Security Engineer will be responsible for identifying and mitigating vulnerabilities in security systems, conducting vulnerability scans, and applying system, network, and operating system hardening techniques.
NewPrincipal Engineer / AI Product Engineering Lead JobotPrincipal Engineer / AI Product Engineering LeadHampton, VA$250,000–$350,000 / yearThe organization is building a new AI-focused initiative and is seeking a Principal Engineer who can act as both a technical leader and product innovator, helping shape the future of AI-driven products from concept to customer adoption. As organizations rapidly adopt AI models, large language models (LLMs), and autonomous AI agents, new security challenges are emerging that traditional cybersecurity solutions were never designed to address.
NewSecurity Engineer - Red Team (Offensive Security) Resource Management Concepts, Inc.Security Engineer - Red Team (Offensive Security)Quantico, VA$150,000–$165,000 / yearPossess and maintain one of the following certifications to meet DoD 8140 DCWF 541 Vulnerability Assessment Analyst certification requirements: CySA+, SecurityX (CASP+), CISM, CISA, CISSP, CFR, GPEN, GSNA. ● 5 years of relevant cybersecurity experience (e.g., Red Team, penetration testing, vulnerability research, security engineering, incident response, detection engineering, etc.).
NewSenior AI Software Engineer-TS/SCI clearances (CI poly preferred) CredenceSenior AI Software Engineer-TS/SCI clearances (CI poly preferred)Herndon, VAYou will collaborate with cross-functional engineering, data, cloud, and stakeholder teams to deliver scalable, secure, and mission-focused AI capabilities for federal clients, while helping guide technical direction, strengthen engineering practices, and mentor other engineers. Experience designing or implementing agentic AI solutions using frameworks or platforms such as Agent2Agent Protocol, Bedrock Agents, Mastra, CrewAI, Strands, AgentCore, LangChain, or LangGraph.
Systems Security Engineer Bowhead / UIC Technical ServicesSystems Security EngineerDahlgren, VA$100,000–$125,000 / yearBowhead considers factors such as (but not limited to) scope and responsibilities of the position, candidate’s work experience, education/training, key skills, internal peer equity, as well as, market and business considerations when extending an offer. You will work closely with other developers, as well as with stakeholders from different departments, to ensure that our RMF A&A packages are accurate, complete, and meet all necessary requirements.
NewMid-Level Security Engineer HalvikMid-Level Security EngineerAlexandria, VAThis is a hybrid position based at the customer location in Alexandria, VA.Core ResponsibilitiesOperational Support: Configure and maintain data discovery and classification policies across assigned cloud, on-premises, SaaS, and developer repositories, supporting prioritized rollout to high-risk systems. Working under the direction of the Lead Senior Security Engineer and Program Manager, the Mid-Level Security Engineer helps operationalize policy controls, maintain compliance dashboards, and support remediation activities that protect sensitive agency and stakeholder information.
NewSr. Security Engineer HalvikSr. Security EngineerAlexandria, VAThis is a Hybrid position requiring work at the customer location in Alexandria, VA.Core ResponsibilitiesStrategic Execution: Lead the architecture and phased rollout of enterprise data discovery, classification, and AI governance capabilities, prioritizing high-risk repositories and expanding coverage across cloud, on-premises, SaaS, and developer environments. This role leads the design, implementation, and operationalization of enterprise-scale data discovery and classification, AI governance and protection controls, and detection capabilities for emerging AI-native development artifacts (e.g., Markdown-based prompt files, cursor rules, GitHub Copilot instructions, and Model Context Protocol configuration files).
AI Software Engineer CredenceAI Software EngineerTysons, VAUnder mentorship from senior AI leaders, you’ll drive agentic AI development lifecycles and collaborate across engineering, data, and stakeholder teams to deliver high-impact, cloud-native AI capabilities that advance federal missions. Exposure to adjacent skillsets such as data engineering, data science, UI/UX, cloud engineering, and platform engineering to understand the entire software ecosystem.
NewFull Stack Developer // AI & Cybersecurity threatERFull Stack Developer // AI & CybersecurityTysons Corner, VATake complete end-to-end ownership of projects, from low-level backend performance (Go/C) to intuitive frontend experiences (Angular). We are looking for a Full Stack Developer who functions like a “Product Engineer”—someone who doesn’t just write code to tickets, but understands the why behind the product.
NewSubject Matter Expert III - Information Systems Security Engineer OneZero SolutionsSubject Matter Expert III - Information Systems Security EngineerArlington, VAThe role is the lead technical authority for designing, building, and sustaining DSCA's layered security automation architecture in AWS infrastructure provisioning, configuration management, Policy-as-Code compliance validation, and orchestration and for translating DoW regulatory requirements into functional, automated, operational code. Title: Subject Matter Expert III - Information Systems Security EngineerLocation: Arlington, VA or Mechanicsburg, PAClearance: SecretJob Summary:The Subject Matter Expert III is key personnel serving as the lead Information Systems Security Engineer (ISSE).
NewInformation Security Systems Engineer L3Harris TechnologiesInformation Security Systems EngineerChantilly, VA$106,500–$197,500 / yearAssist in systems/software engineering functions, to include creation of data flow diagrams, interface control documents, perform trade studies, and Static Application Security Testing (SAST) for Application Security and Development Secure Technical Implementation Guide (STIG) compliance using tools such as Fortify/Coverity and Gitlab as part of a DevSecOps Continuous Integration/Continuous Deployment (CI/CD) Pipeline, and generation of summary reports. Perform skills in implementing/assessing security controls, to include writing system security categorization memorandum, recommending appropriate security control overlays, define security control baseline based on defined system security categorization and approved security overlays, and apply security controls to computing/network nodes and verify implementation of security controls.
NewDevSecOps Engineer Sparks GroupDevSecOps EngineerManassas, VA$145,000–$180,000 / yearU.S. citizenship and the ability to obtain a TS/SCI clearance; experience supporting defense programs or working with RMF, NIST 800-53, STIGs, cloud security, or automated security scanning is preferred. Partner with software engineering, cybersecurity, and operations teams to troubleshoot deployment issues, integrate security controls, and continuously improve development and release processes.
CyberArk Security Engineer Base One TechnologyCyberArk Security EngineerArlington, VA$155,000–$190,000 / yearContractorFull timeBS degree in Science, Technology, Engineering, Math or related field and 5-7 years of prior relevant experience with a focus on cybersecurity. Experience installing, configuring, and maintaining tools such as Tanium, Nessus, Forescout, and Cyberark in a hybrid-cloud environment.
NewSenior DevSecOps Engineer CredenceSenior DevSecOps EngineerMcLean, VATechnical Leadership & Team Management: Lead, mentor, and manage a team of approximately five DevSecOps engineers, providing technical direction, prioritizing work, conducting code and architecture reviews, and fostering a collaborative, high-performing "one team" culture while remaining an active hands-on contributor. Hands-On Engineering: Serve as the technical lead for complex infrastructure, automation, and deployment efforts by designing solutions, troubleshooting production issues, developing infrastructure and pipeline code, and supporting implementation across the DevSecOps toolchain.
NewSoftware Engineer II - CTJ - Poly MicrosoftSoftware Engineer II - CTJ - PolyReston, VA$102,100–$202,200 / yearPreferred Qualifications: Masters Degree in Computer Science or related technical field AND 3+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR Bachelors Degree in Computer Science or related technical field AND 5+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $133,800 - $219,200 per year.
NewSr. Software Engineer - CTJ - Poly MicrosoftSr. Software Engineer - CTJ - PolyReston, VA$119,800–$234,700 / yearMasters Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR Bachelors Degree in Computer Science or related technical field AND 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python. The Microsoft Security organization accelerates Microsoft’s mission and bold ambitions to ensure that our company and industry is securing digital technology platforms, devices, and clouds in our customers’ heterogeneous environments, as well as ensuring the security of our own internal estate.
NewInfrastructure & Security Engineer SOLUTIONS FOR INFORMATION DESIGNInfrastructure & Security EngineerFairfax Station, VAThe role leads, owns, designs, administers, secures, and continuously improves SOLID's corporate and program-specific technology environments, including cloud services, servers, virtual machines, identity platforms, endpoints, networks, firewalls, backups, and monitoring tools. The position also supports Department of Defense Risk Management Framework and other federal cybersecurity requirements, including system hardening, vulnerability management, continuous monitoring, incident response, and Authority to Operate documentation.