Sr. Mission Analysis Engineer – Aerospace Systems (TS/SCI) MaxaarSr. Mission Analysis Engineer – Aerospace Systems (TS/SCI)Herndon, Virginia$187,000–$205,700 / yearYou’ll build and run simulations of satellites, aircraft, sensors, and operational scenarios; explore alternative concepts and system designs; and turn large volumes of simulation data into insights that engineers, customers, and senior decision-makers can act on. Vantor is a place for problem solvers, changemakers, and go-getters—where people are working together to help our customers see the world differently, and in doing so, be seen differently.
Sr. Aerospace Modeling & Simulation Engineer MaxaarSr. Aerospace Modeling & Simulation EngineerHerndon, Virginia$187,000–$205,700 / year8+ years of professional experience in space systems modeling and simulation, includingknowledge of the theory and applications of astrodynamics, remote sensing, spacecraft design, aerospace systems operations,orcomplex systems integration. Bachelor’s degree from an accredited college/university, in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, Mathematics, Physics, or Computer Science. .
Sr. Software Engineer KBRSr. Software EngineerChantilly, VA$156,400–$215,100 / year10+ years of experience in software development, object-oriented design, architecture, coding, and testing, with substantial experience implementing DevOps practices including CI/CD automation, containerization, orchestration, configuration management, security, and cloud technologies. GED plays a critical role in enabling the Intelligence Community Customer to plan and execute intelligence-gathering missions, transforming collected data into useful information for the Intelligence Community (IC) and Department of Defense (DoD) users.
Senior Quantum Architect Microsoft CorpSenior Quantum ArchitectReston, VA$119,800–$234,700 / yearRequired Qualifications: Doctorate in Computer Science, Software Engineering, Mathematics, Physics, Physical Sciences, or related field AND 1+ years software industry experience, including research and/or development of commercial software, compilers, scientific computing applications, or multi-component systems. OR Bachelors Degree in Computer Science, Software Engineering, Mathematics, Physics, Physical Sciences, or related field AND 4+ years software industry experience, including research and/or development of commercial software, compilers, scientific computing applications, or multi-component systems.
Senior Quantum Sensing Engineer Science Applications International CorpSenior Quantum Sensing EngineerChantilly, VA$200,001–$240,000 / yearProvide systems engineering activities such as Concept of Operations Formulation, Requirements Definition, Analysis and Engineering, System Architecting, System Analysis and Design, Interface and Data Architectures, Validation and Verification, System Integration, System & Operations Performance Analysis, Lifecycle Cost Analysis & Estimation, Decision Analysis, and Physical Configuration Analysis (PCA). These enabling component technologies include space-qualified (radiation-hardened and temperature-resistant) electronics, laser optical systems, photonic integrated circuits, vapor cells, space-qualified photodetectors, and cryogenic systems.
Senior AI Systems Architect UnissantSenior AI Systems ArchitectAshburn, VAThis position serves as a trusted technical advisor to leadership, program stakeholders, architects, developers, data scientists, and cybersecurity teams while driving the transition of AI capabilities from research and experimentation into production operational environments. We are seeking a Senior AI Systems Architect to serve as a technical lead and enterprise architect for Artificial Intelligence (AI), Machine Learning (ML), Generative AI (Gen-AI), and advanced analytics initiatives supporting our federal customer.
Senior Cloud Software Engineer/Architect Red Horse Corporation Ltd.Senior Cloud Software Engineer/ArchitectGainesville, VA$145,000–$185,000 / yearWe encourage all candidates who meet the basic requirements to apply, even if you do not have all of the following experience: Cloud Certifications & Advanced Design: Prior experience leading subsystem architecture or holding certifications such as AWS Certified Solutions Architect or Microsoft Certified: Azure Solutions Architect Expert. You will collaborate closely with government stakeholders and engineering teams to architect scalable microservices, integrate state-of-the-art AI/ML workflows (including Large Language Models and vector search), and deliver high-performance web user interfaces for data visualization and cyber analytics.
Senior DevSecOps & Systems Engineer (Full Stack) Science Applications International CorpSenior DevSecOps & Systems Engineer (Full Stack)Sterling, VA$120,001–$160,000 / yearSecDevOps & Automation Responsibilities: Architect, implement, and maintain secure CI/CD pipelines with integrated security gates, including static and dynamic application security testing (SAST/DAST), software composition analysis (SCA), container scanning, and secrets management. This role requires deep expertise spanning software development, IT operations, systems engineering, and security engineering, with the ability to bridge gaps between systems, teams, and processes while serving as a hands-on technical leader.
Senior Network Engineer VTGSenior Network EngineerChantilly, VirginiaFull timeOverview: We are seeking an experienced Senior Network Engineer to support a mission-focused enterprise environment, responsible for designing, implementing, and troubleshooting secure network and cloud infrastructure solutions. The ideal candidate will work across AWS environments and hybrid architectures, supporting system reliability, performance, and security through modern networking and DevOps practices.
Sr. System Engineer – Requirements Engineer 2025-CAL-100 ICESSr. System Engineer – Requirements Engineer 2025-CAL-100Chantilly, VirginiaParticipate in cross-directorate working groups and joint requirements definition fora to ensure alignment of enterprise and system-level needs. Strong collaboration and communication skills, with the ability to work closely with senior Government stakeholders and cross-functional teams.
Sr. System Engineer - Configuration Management 2025-CAL-103 ICESSr. System Engineer - Configuration Management 2025-CAL-103Chantilly, VirginiaInterface with government stakeholders and technical teams to iteratively define change impacts and gain feedback through configuration lifecycle events such as Engineering Review Boards (ERBs). Support Configuration Management as part of broader systems engineering technical enabling tasks to maintain consistency, control, and traceability across lifecycle activities.
Senior Systems Engineer (ESS-INT) VTGSenior Systems Engineer (ESS-INT)Chantilly, VirginiaFull timeResponsibilities: They will provide Systems Engineering and Technical Advisory (SETA) services to assist the government in implementing and executing systems engineering processes to integrate mission systems into the operational baseline at a customer facility. Develop and maintain Model-Based Systems Engineering (MBSE) models of mission systems, integrating MBSE tools into a digital thread to connect siloed information systems.
NewSenior ISSO / ISSE (eMASS and ACAS) Empower AI Inc.Senior ISSO / ISSE (eMASS and ACAS)Quantico, VirginiaFull timeThe role owns the eMASS RMF packages and continuous monitoring for assigned systems as ISSO, and as ISSE engineers and validates STIG/SRG baselines, designs control implementations, leads ACAS vulnerability remediation engineering, and ensures new solutions (endpoint, ITSM/dashboards, collaboration, communications, automation and AI) are designed to achieve and maintain ATO. Lead security engineering for in-scope systems: define security architectures, select and tailor NIST SP 800-53 controls, and design control implementations for endpoint infrastructure, ITSM/dashboard platforms, collaboration and web platforms, and VoIP/VTC/mobile communications.
Sr. Software Engineer -CTJ- Poly Microsoft CorpSr. Software Engineer -CTJ- PolyReston, VA$119,800–$234,700 / yearPreferred/Additional Qualifications: Masters 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 OR equivalent experience. You will work on distributed systems that enable Power Platform services to function in isolated, air‑gapped environments, partnering with Public Cloud teams to bring features to parity while ensuring those features meet the constraints of sovereign deployments.
NewSenior Cyber Effects Engineer The Charles Stark Draper LaboratorySenior Cyber Effects EngineerReston, MassachusettsDraper is actively seeking a Senior Cyber Effects Engineer that will support current and future reverse engineering, vulnerability research, and cyber tool development projects across a variety of domains supporting the United States of America's national interest. As a part of the Draper Cyber Effects team, you will drive the design and development of software tools and capabilities, perform static and dynamic analysis on diverse firmware and software, and share your expertise with others via mentoring and technical leadership opportunities.
Senior Software Engineer - Unified Video Sustainment Cubic CorpSenior Software Engineer - Unified Video SustainmentAshburn, VA$131,000–$175,000 / yearCompany Details: When you join Cubic, you become part of a company that creates and delivers technology solutions in transportation to make people's lives easier by simplifying their daily journeys, and defense capabilities to help promote mission success and safety for those who serve their nation. This role is responsible for maintaining and enhancing the Unified Video ecosystem, including Feed Management Portal (FMP) and NetOps, while ensuring the platform remains secure, reliable, and scalable for mission-critical defense applications.
Senior Network Engineer Xpect Solutions IncSenior Network EngineerVADemonstrated experience in troubleshooting complex Local Area Networking (LAN) issues and resolving Wide Area Networking (WAN) problems and supporting of cost-effective, high-performance IP and LAN/WAN solutions. Utilize extensive knowledge of internetworking, computer systems, routers, switches, firewalls, and peripherals to enhance understanding of current network designs and to collaborate with other team members to develop new network designs.
Sr. Specialist, Software Engineer L3Harris Technologies IncSr. Specialist, Software EngineerHerndon, VA$97,000–$207,500 / yearIn addition to technical contributions, this position supports the day‑to‑day activities of the Software Engineering Group by providing technical guidance, assigning tasks, participating in complex engineering efforts, reviewing and approving formal documentation, and estimating labor, tools, and other resources to meet budget and schedule commitments. About L3Harris Technologies: L3Harris Technologies is an agile global aerospace and defense technology innovator, delivering end-to-end solutions that meet customers' mission-critical needs.
NewSenior Director, Business Development - Civil & Commercial Rocket Lab CorpSenior Director, Business Development - Civil & CommercialChantilly, VA$213,000–$320,000 / yearImportant information: FOR CANDIDATES SEEKING TO WORK IN US OFFICES ONLY: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), Rocket Lab Employees must be a U.S. citizen, lawful U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum, or be eligible to obtain the required authorizations from the U.S. Department of State and/or the U.S. Department of Commerce, as applicable. Develop and execute capture strategies for securing large commercial or civil space contracts, Engage with key customer stakeholders to build and maintain long-term relationships, ensuring Rocket Lab's solutions align with their evolving needs.
Senior Solution Consultant - Public Sector Workiva IncSenior Solution Consultant - Public SectorVA$156,000–$255,000 / yearIn this role, you will bridge the gap between complex governmental assured financial reporting challenges and the Workiva platform, executing the technical sales process by driving deep discovery and whiteboarding, delivering high-impact, tailored, value-based demonstrations, partnering on key deal strategy, and building trusted technical relationships to drive long-term platform value adoption. Strategic Platform Advisor & Executive Storytelling: Proven ability to lead cross-functional "Art of the Possible" workshops mapping platform capabilities to broad strategic objectives, connecting disparate use cases into a unified platform narrative tailored for audiences ranging from the C-suite (including CFOs, CIOs, CSOs and CROs) to accounting, technology, sustainability and GRC practitioners and managers.