Network Modeling and Simulation Lead CACI International IncNetwork Modeling and Simulation LeadSterling, VA$120,800–$265,800 / yearQualifications: • Bachelors degree in Applied Mathematics, Applied Statistics, Computer Science, Information Technology, or equivalent work experience • 10+ years of related work experience • Strong understanding of network protocols, architectures, and technologies (e.g., TCP/IP, MPLS, SDN) • Expertise in network simulation tools (NS3, Riverbed Modeler, OPNET, Paragon Planner, etc.) • Experience with data analytics and visualization tools • Proven track record of solving complex network problems through modeling and simulation • Strong analytical and problem-solving skills, with the ability to interpret complex data and translate it into actionable insights • Strong written and verbal communication skills • Ability to work independently and as part of a team • TS/SCI with Poly required • Leadership and team management experience, with the ability to inspire and guide teams toward achieving project goals. Desired: • Strong programming skills in languages relevant to network modeling (e.g., Python, C++, MATLAB) • Relevant industry certifications (e.g., CCNP, JNCIP) • Experience in large-scale, multi-vendor network environments.
Senior Security Engineer Evolver IncSenior Security EngineerWashington, DCThe Senior Security Engineer will work closely with SOC teams, architects, and program managers to deliver robust security capabilities across cloud (AWS GovCloud, Azure Government), on-premises, and hybrid environments. This position requires deep technical expertise, hands-on experience with security tools, and the ability to lead engineering efforts for mission-critical systems in highly regulated environments.
Senior Multi-Cloud DevOps Engineer (TS/SCI with Poly) Federal Staffing Solutions Inc.Senior Multi-Cloud DevOps Engineer (TS/SCI with Poly)Mc Lean, VAAs a DevOps engineer, you know how to set up cloud environments and provision computer networking, storage, and virtual networks—ultimately, how to “harness the cloud.” You’ll apply your skills within a DevOps framework to establish or provision virtual machines or networks and use cloud service providers to further your clients’ meaningful missions.
Devops Engineer, Senior Booz Allen Hamilton Inc.Devops Engineer, SeniorMclean, VA$77,600–$176,000 / yearOnsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role. Experience provisioning computer networking and storage, and setting up servers which the platform runs, including virtual machines (VMs) or networks.
Senior Software Engineer - JobID-0208 Innovative Defense TechnologiesSenior Software Engineer - JobID-0208Arlington, Virginia$135,000–$273,000 / yearAssure Quality: Maintains a focus on quality that produces deliverables that meet objectives and align needs, uses, and acceptance requirements set forth by relevant stakeholders Lead design and code reviews, providing constructive feedback to peers. About The Role: Innovative Defense Technologies (IDT), a leading defense technology company, is seeking a Senior Software Engineer to be part of our Engineering team and based out of our Arlington, VA or Mount Laurel NJ location.
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 DevOps Engineer Leidos Holdings IncSenior DevOps EngineerChantilly, VA$107,900–$195,050 / yearFor 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. Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced capabilities throughout the entire USG arsenal.
Sr. Field Engineer York Telecom CorporationSr. Field EngineerWashington, DCFrequent sitting, standing, and walking • Limited weekend and/or night work may be required • Domestic travel requiring multi-night stays within and at times outside the local work area • Valid passport; International travel possible • Valid U.S. driver's license • Must be willing to complete background checks and drug tests as required by current or future contracts • Must be willing to apply for security clearances, suitability, and other related clearances to be able to work at certain customer locations. With over 10,000 video systems under management worldwide - more than any other video communications service provider - Yorktel has the proven expertise and global reach to deliver enterprise-quality visual communications.
Senior DSP/SDR Engineer The Aerospace CorpSenior DSP/SDR EngineerChantilly, VA$129,000–$249,600 / yearAs the operator of a federally funded research and development center (FFRDC), we are broadly engaged across all aspects of space- delivering innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers. We leverage this deep knowledge to develop satellite payloads, advanced signal collection methods, new modulation schemes, testbed environments, and innovative approaches to antenna design, characterization, and measurement.
Senior SAR-Based MTI Engineer The Aerospace CorpSenior SAR-Based MTI EngineerChantilly, VA$166,400–$249,600 / yearWe specialize in SAR image formation processing, SAR system performance modeling and analysis, moving target indications (MTI) find-fix-target-track applications, maritime surveillance techniques, electronic protection applications, complex data processor development, and advanced processing algorithms. As the operator of a federally funded research and development center (FFRDC), we are broadly engaged across all aspects of space- delivering innovative solutions that span satellite, launch, ground, and cyber systems for defense, civil and commercial customers.
Senior Test Automation Engineer Leidos Holdings IncSenior Test Automation EngineerColumbia, MD$116,350–$210,325 / yearCollaborate with stakeholders to plan, estimate, and break down work for migrating the current in-house test harness from legacy Robot Framework to a modern alternative (e.g., Robot Framework AIO or Microsoft Playwright). The successful candidate will also help evolve our in-house automation framework by planning and executing the migration from legacy Robot Framework implementations to newer automation platforms.
Senior Systems Administrator/Engineer Eliassen GroupSenior Systems Administrator/EngineerRockville, Maryland$70–$75 / hourAbout Eliassen Group:Eliassen Group is a strategic consulting firm that helps organizations reach further and achieve more through our technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined exceptional people, deep domain expertise, and intelligent capabilities to expand our clients’ capacity and accelerate meaningful outcomes.
Cloud Infrastructure Engineer, Senior Booz Allen Hamilton IncCloud Infrastructure Engineer, SeniorArlington, VA$86,800–$198,000 / year4+ years of experience deploying and maintaining cloud-native infrastructure services, including Azure Virtual Network, Virtual Private Clouds, Azure Firewall, Security Groups and Azure RBAC, or Identity and Access Management. Onsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role.
Senior DevSecOps Engineer Stand TogetherSenior DevSecOps EngineerArlington, Virginia$135,000–$170,000 / yearThis role blends DevOps engineering excellence with security-first thinking —you’ll embed security controls directly into our CI/CD processes, drive compliance automation, and champion best practices for cloud security across all three of the major cloud providers. Stand Together is a philanthropic community that helps America’s boldest changemakers tackle the root causes of our country’s biggest problems, from education to the economy, broken communities, and toxic division, among dozens of other pressing issues .
Senior CNO Systems Engineer Redhorse CorporationSenior CNO Systems EngineerWoodbridge, VAYou will bridge the gap between operational requirements and technical execution, designing scalable environments that support Vulnerability Research (VR), Reverse Engineering (RE), and Computer Network Exploitation (CNE). We’re looking for thoughtful, skilled professionals who thrive as trusted partners building technology-agnostic solutions and want to apply their talents supporting customers with difficult and important mission sets.
Senior Systems Engineer (Top Secret) Revolutional, LLCSenior Systems Engineer (Top Secret)Arlington, VA$150,000–$180,000 / yearWe apply modern capabilities, including AI/ML, cloud, cybersecurity, and IT modernization to solve complex challenges, enable faster and more secure operations, and drive measurable mission outcomes. We are seeking a highly experienced and technically proficient Senior Systems Engineer to manage, optimize, and secure critical enterprise infrastructure at the Dept of State in Washington, DC.
NewSr. DevOps Engineer LeidosSr. DevOps EngineerBethesda, MarylandAdditionally, this role will help automate and streamline operations and processes; as well as build and maintain tools for deployment, monitoring and operations, and troubleshoot and resolve issues in dev, test, and production environments. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management.
NewSenior Platform Engineer (Dbaas) Rumble Inc.Senior Platform Engineer (Dbaas)Washington, DC$160,000–$185,000 / yearYou'll collaborate with Rumble Cloud engineering, SRE, and database architecture teams to take DBaaS from initial hardening through launch and into scale-out: defining SLIs/SLOs, building automation and runbooks, integrating with OpenStack services, and serving as a senior escalation point when platform issues impact customers. You'll design and operate DBaaS as a multi-tenant, stateful service: making sure clusters are healthy, databases are highly available, storage and networking are robust, and the platform can scale quickly as adoption grows.
Senior Devops Engineer Leidos Holdings Inc.Senior Devops EngineerColumbia, MD$107,900–$195,050 / yearFor 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. Who We Are: Kudu Dynamics is Leidos Owned Company, forged out of a decade of experience in computer network operations and staffed with talent who have built, overseen, and enhanced capabilities throughout the entire USG arsenal.
Sr. Infrastructure Engineer Applied Information SciencesSr. Infrastructure EngineerReston, VirginiaMust have experience with designing/deploying Cloud infrastructure using reusable Terraform modules to provision kubernetes clusters, networking components, storage accounts, RBAC roles, and other Cloud services through terraform cloud for governance and automation; onboarding applications into kubernetes with Helm and GitOps (FluxCD), implementing Cloud IAM for secure pod-to-service authentication, and building CI/CD pipelines in Azure DevOps for both infrastructure and application deployments; performing Cloud networking design, including VNets, private endpoints, DNS, Application Gateway, Front Door, and API management (APIM); and deploying/maintaining multi-region workloads, testing failover, and disaster recovery processes, and automating governance through Terraform Cloud and Azure DevOps. Consulting & Engagement: Delivers architectural consulting aligned to business strategy, proposes enterprise technologies, nurtures vendor alliances, and seeds new project opportunities.