Ontology Scrum Master (TS/SCI) Vantor ServicesOntology Scrum Master (TS/SCI)Herndon, Virginia$143,000–$157,300 / yearWorking closely with ontology engineers, software developers, data engineers, database engineers, UX designers, and Government stakeholders, the Product Owner ensures the delivery of secure, scalable, and mission-focused solutions that enable semantic interoperability, knowledge management, and advanced analytics. Certified Scrum Product Owner (CSPO), Professional Scrum Product Owner (PSPO), SAFe Product Owner/Product Manager (POPM), PMI Professional in Business Analysis (PMI-PBA), or equivalent Agile product management certification.
Ontology Scrum Master (TS/SCI) MaxaarOntology Scrum Master (TS/SCI)Herndon, Virginia$143,000–$157,300 / yearWorking closely with ontology engineers, software developers, data engineers, database engineers, UX designers, and Government stakeholders, the Product Owner ensures the delivery of secure, scalable, and mission-focused solutions that enable semantic interoperability, knowledge management, and advanced analytics. Certified Scrum Product Owner (CSPO), Professional Scrum Product Owner (PSPO), SAFe Product Owner/Product Manager (POPM), PMI Professional in Business Analysis (PMI-PBA), or equivalent Agile product management certification.
Network Engineer LeidosNetwork EngineerLorton, VirginiaIn FY23 Leidos was awarded the Homeland Enterprise Information Technology Secure Services and Support (HEITS) follow-on contract to support and enhance the DHS networks, Homeland Secure Data Network (HSDN) and the Classified-Local Area Network (C-LAN). Design, engineer, and implement local area networks (LANs), wide area networks (WANs), Data Center networks, and other network-related technologies.
SME Network Engineer Revolutional, LLCSME Network EngineerLorton, VA$130,000–$160,000 / yearThis role provides hands-on leadership across all network engineering functions , including architecture, routing, switching, firewall engineering, VPN and PKI integration, segmentation design, troubleshooting, and IA/accreditation-grade documentation. The SME ensures the integrity, resilience, and performance of mission-critical networks and collaborates closely with Systems, Virtualization, Storage, and Field Engineering teams to ensure end-to-end operational success.
Senior Network Engineer VTGSenior Network EngineerChantilly, VirginiaFull timeCandidate should be able to define internal and external customer IT infrastructure and architecture needs and then design solutions to meet those needs including capacity planning, systems configuration and tuning, monitoring network performance, and installations of hardware/software. Overview: VTG is seeking a Network Engineer V to strategically safeguard critical national security interests by leveraging advanced network intelligence and precision-targeted cyber capabilities.
Data Platform Engineer Bright Vision TechnologiesData Platform EngineerReston, VARemote$100,000–$150,000 / yearJob Summary We are seeking a Data Platform Engineer to design, build, and operate high-performance, highly reliable inference platforms for serving large machine learning models in production. The ideal candidate brings strong distributed systems and performance engineering expertise, has shipped serving systems at scale, and understands the trade-offs between latency, throughput, cost, and quality in ML serving.
Software Engineer - Senior Spear AISoftware Engineer - SeniorBolling AFB, District of ColumbiaWe’re looking for a Senior Software Engineer to lead software development initiatives for enterprise AI platforms, provide technical leadership and architectural guidance while delivering high-quality, scalable software solutions. Expertise in multiple programming languages and technology stacks: a modern JS framework (React, Angular, or Vue) plus at least one back-end language/framework (Python/FastAPI/Django, Node.js, Java/Spring, or Go).
Senior Network Engineer - Corporate Enterprise Network (WAN) AGE SolutionsSenior Network Engineer - Corporate Enterprise Network (WAN)Alexandria, VAProvide SME engineering services to design, configure, test, implement, and sustain STIG-compliant network and security architectures, including NAC (802.1x), reverse proxy and load balancing, web filtering, DNS/DHCP/IPAM, VPN, wireless/IDS, VDI support, VoIP/VTC/streaming, Check Point firewalls and MDM, NMS tool suites, MPLS architecture, SATCOM support, and DR/COOP planning; perform Tier IV troubleshooting and produce required technical documentation (ECRs, ITRs, NSOs, AARs, test plans/reports, and as-built diagrams). Provide Cloud-certified SME engineering support for on-premises to Cloud migrations, coordinating with CSPs (e.g., Azure, AWS, Oracle, Google Cloud, MilCloud2) and facilitating integration with Secure Cloud Computing Architecture (SCCA) BCAP in multi-cloud environments.
CCIE Senior Network Engineer ConsultNetCCIE Senior Network EngineerVienna, VA$145,000–$155,000 / hourFor over 25 years, we have connected thousands of consultants with meaningful roles through a personal, communication-driven approach, partnering with a diverse client base to build high-performing teams and create lasting impact. This role owns enterprise and data center network initiatives end-to-end, delivering resilient, secure, and scalable architectures aligned to business and compliance requirements.
Data Scientist LeidosData ScientistBethesda, MarylandLeidos National Security Sector has a current opening for a TS/SCI cleared Data Scientist supporting our 10-year DOMEX Technology Platform (DTP) contract working alongside software/system engineers and research/data scientists with expertise in multi-modal information retrieval, UI development, computer vision, metrics, information science, artificial intelligence, and autonomous systems. Work closely with a tight-knit team of data scientists, software developers, network engineers, senior investigators, program managers, researchers, and data analysts to design, build, and optimize a Search and Discovery platform to find and organize results, disseminate findings via reports, and contribute to publications and presentations.
Engineer, Systems & SaaS Washington Nationals Baseball ClubEngineer, Systems & SaaSWashington, DC$100,000–$120,000 / yearPart timeReporting to the Director, IT Operations, the Systems & SaaS Engineer is the senior IT Operations staff member responsible for the architecture, design, implementation, administration, and optimization of enterprise systems and SaaS platforms across a hybrid cloud and on-premise environment, with a primary focus on Microsoft 365, Azure, and integrated SaaS applications. The Engineer enables a modern, automated, AI-ready digital workplace, maintains system reliability, drives integration and automation, provides technical guidance and serves as the senior escalation point and design authority for all systems and SaaS matters.
Network Engineer Castalia SystemsNetwork EngineerArlington, VA$125,000–$135,000 / yearBS Computer Science, Computer Engineering, Computer Information Systems, Computer Systems Engineering or related degree; or HS Diploma and 7+ years network administration, network engineering or systems administration experience. Castalia Systems is supporting a U.S. Government customer to provide support for onsite incident response to civilian Government agencies and critical asset owners who experience cyber-attacks, providing immediate investigation and resolution.
Network Engineer (Cloud) By Light Professional IT Services LLCNetwork Engineer (Cloud)Alexandria, VirginiaAdditionally, this individual should have experience with the setup and maintenance of VPN tunnels, vLAN configurations, wireless network configurations, IPv6 and IPv4 (including complex sub-netting) and network security (Cisco ASA Firewalls, ACLs, IPsec, and other encryption methodologies). Proficient in using network management and monitoring platforms such as Arista CloudVision, Riverbed, NetFlow, TAPs, SPANs, AWS Network Manager, Azure Network Watcher, or equivalent third-party solutions for visibility, diagnostics, and topology tracking.
Sr. Core Network Engineer LeidosSr. Core Network EngineerChantilly, VirginiaJuly 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. Network Architecture provides solutions for modernizing the network components while supporting service delivery for customer requirements in a mission-focused operational enterprise.
SENIOR NETWORK ENGINEER (TS/SCI Clearance Required) NorthHill TechnologySENIOR NETWORK ENGINEER (TS/SCI Clearance Required)Fairfax, VirginiaYou will be part of a small but strong senior level networks team responsible for architecting, designing, installing, implementing, and maintaining a large multi-agency program based mission essential network infrastructure with very strict security, fault tolerance and latency requirements. • Proficiency with multiple network protocols, to include, TCP/IP, IPv4, UDP (and multicast), TLS, VPLS, GRE.
Head of Engineering - Inbound Data OSTTRAHead of Engineering - Inbound DataWashington DC, New YorkDeep expertise in Databricks Data Intelligence Platform including Unity Catalog, Delta Lake internals, Delta Live Tables, Databricks Workflows, MLflow, and Mosaic AI, with ability to engage in technical discussions and provide strategic guidance on complex platform trade-offs. Extensive experience architecting enterprise-scale data platforms on AWS including services such as Amazon S3, AWS Glue, Amazon EMR, AWS Lake Formation, with strong understanding of multi-region deployment strategies and security patterns (IAM, VPC, KMS).
NewNetwork Engineer Celestial Innovations GroupNetwork EngineerWashington, District of ColumbiaWork-Life Balance : We prioritize the well-being of our team members, ensuring a healthy work-life balance through flexible working conditions, continuous learning opportunities, and a supportive work environment. Overview The Network Engineer provides mid-level support for enterprise network operations, infrastructure maintenance, and troubleshooting activities critical to government users and systems.
Manager, Data Engineer (Python/PySpark/AWS) Infinitive IncManager, Data Engineer (Python/PySpark/AWS)Ashburn, VA$140,000–$169,000 / yearYour expertise in Python, PySpark, ETL processes, CI/CD (Jenkins or GitHub), and experience with both streaming and batch workflows will be essential in ensuring the efficient flow and processing of data to support our clients. Infinitive has also been named a Washington Post “Top Workplace”, Washington Business Journal “Best Places to Work”, and Virginia Business “Best Places to Work.”.
Network Engineer- Subject Matter Expert All Native GroupNetwork Engineer- Subject Matter ExpertWashington, DC$140,000–$180,000 / yearFull timeCreate and author artifacts as it relates to technical and strategic initiatives; artifacts include, but not limited to Executive-level briefings, Technology Roadmap(s), Course of Action (COA) plans, weekly activity reports, IRM-level Strategic Communication Articles, Pilot Concept of Operation Plans/Schedules, Contingency Plans, Operational Runbooks/Checklist, SWOTs, and data visualization/dashboards, • Provide advisory to Branch Level Operations and Maintenance (O&M) by creating, reviewing, and verifying processes are implemented in accordance with government approval, • Provide support to Branch Level Business Operations as it relates to financial-related tasks (e.g., cost modeling) and frameworks (e.g, Technology Business Management, TBM), as well as vendor relationship support. • Provide project and portfolio management for Division Level strategic/forward-leaning initiatives and projects, • Lead and manage Proof of Concepts (POCs), Pilots, Authority to Test, and Analysis of Alternatives as it relates to Enterprise-wide initiatives, • Provide technical management and strategic guidance to subject matter experts (SMEs) in areas including, but not limited to, enterprise data networking, unified communications UC, WiFi, and cloud-related Unified Communications as a Service (UCaaS), Contact Center as a Service (CCaaS), and Software as a Service (SaaS) platforms.
Cloud Network Security Engineer (Job 1393) DLHCloud Network Security Engineer (Job 1393)Bethesda, Maryland$150,000–$158,000 / yearBachelor’s degree in computer science, engineering, or a related field or an equivalent combination of education and experience and appropriate technical certifications, with at least twelve (12) years of experience in information technology and (4) years leading or performing systems engineering or related functions. Support a federal healthcare enterprise environment by collaborating with and providing support to other IT Operational Service Areas (Server/Storage, Network, Service Desk, Application Development) in the design, development, and testing of solutions, as well as diagnosing, troubleshooting, and remediation of issues.