NewLead Security Engineer Dev Technology GroupLead Security EngineerSuitland, MD$120,000–$190,000 / yearAs a Washington Post Top Workplace award winner for the past THIRTEEN years in a row, the Top Workplaces USA for the past five years, and a recipient of the Companies As Responsive Employers (CARE) Award for the past six years, Dev Technology employees enjoy: Generous and flexible time-off policy. Collaborate with application developers, data engineers, systems engineers, and OIS to identify and mitigate vulnerabilities, and provide expert security consultation to development teams.
Senior System Engineer (Email Security Migration) System OneSenior System Engineer (Email Security Migration)Washington, DCResponsibilities : • Lead the migration from on-premises IronPort email security appliances to Proofpoint cloud-based email security solution, ensuring seamless transition with minimal disruption to email services. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
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.
Commissioning Project Engineer, AMER-East ACx Amazon Data Services, Inc.Commissioning Project Engineer, AMER-East ACxHerndon, VAA Commissioning Project Engineer (CxPE) supports the delivery of data center capacity through managing project milestone auditing, calibration, and commissioning execution for new construction and Capital Improvement Projects (CIPP). We pioneered cloud computing and never stopped innovating — that’s why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.
Controls Engineer, Deployment, Data Center Capacity Delivery Amazon Data Services, Inc.Controls Engineer, Deployment, Data Center Capacity DeliveryHerndon, VAAWS Data centers have multiple components such as generators, uninterruptible power sources, diesel generators, electrical switchgear, power distribution units, variable frequency drives, automatic/static transfer switches, chillers [air-cooled and water-cooled], pumps, cooling towers, heat exchangers, CRAHs, air economizers, etc. • Frequently visit (locally) assigned in-operation data centers to troubleshoot, meet customers, supervise vendor’s work to ensure compliance with the scope, design, SOO and applicable local codes.
NewLead, Mechanical Engineer L3Harris TechnologiesLead, Mechanical EngineerHerndon, VATechnical leadership of the Mechanical Engineering team throughout the full program lifecycle including design, development, manufacturing, formal hardware qualification, integration and test, transition to production, and production support. The salary range for this role in Colorado state, Hawaii, Illinois, Maryland, Minnesota, New York state, Cleveland Ohio, Vermont and Virginia is [$135,000 MIN - $215,000 MAX].
Active Directory Architect / Engineer LeidosActive Directory Architect / EngineerArlington, VA$131,300–$237,350Design, deploy, upgrade, and administer Active Directory Domain Services, including domain controllers, forests, domains, trusts, and replication topologies (i.e. Manage and optimize Group Policy Objects (GPOs), OU structures, and security baselines; including object management through bulk operations and automation, Troubleshoot and resolve complex AD-related issues, including authentication failures, replication problems, DNS issues, and Kerberos/NTLM problems, Plan and execute Active Directory migrations, consolidations, and upgrades (of both underlying server infrastructure and overall forest/domain functional levels), Develop and maintain disaster recovery, backup, and restore procedures for AD environments (including AD Recycle Bin and authoritative restores), Monitor AD health and performance using tools such as Microsoft System Center, Azure Monitor, or third-party solutions). Deep expertise in designing, deploying, upgrading, and administering Microsoft Active Directory Domain Services (AD DS), including domain controllers, multi-domain/forest architectures, trusts, replication topologies, Group Policy Objects (GPOs), OU design, and security baselines.
Systems Engineer IV Base One TechnologySystems Engineer IVArlington, VA$200,000–$220,000 / yearContractorSupporting 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. Contract personnel perform investigations to characterize of the severity of breaches, develop mitigation plans, and assist with the restoration of services.
Cloud Architect / Engineer LeidosCloud Architect / EngineerWashington, DC$131,300–$237,350Proven expertise with Generative AI infrastructure, including: Production-ready Retrieval-Augmented Generation (RAG) pipelines, Scalable vector databases (e.g., Pinecone, Weaviate, Milvus, FAISS, or managed services) with indexing, clustering, and optimized retrieval, GPU/TPU compute clusters, managed container orchestration (Kubernetes/EKS/AKS/GKE), and auto-scaling for large language model (LLM) workloads. Demonstrated experience implementing enterprise security and compliance frameworks (SOC 2, ISO 27001, HIPAA, PCI-DSS, CMMC, FedRAMP, etc.), including encryption, threat monitoring, and zero-trust architectures.
NewIPv6 Network Engineer On-Site Quadtec Solutions, IncIPv6 Network Engineer On-SiteReston, VAThe ideal candidate will bring hands-on experience with dual-stack environments, multicast routing, and Cisco platforms, ensuring a seamless and secure transition to next-generation IP networking. Develop and execute comprehensive test plans for IPv6 deployment scenarios, including dual-stack, tunneling (6in4, GRE, ISATAP), and translation (NAT64/DNS64) mechanisms.
NewNetwork Engineer *Active Top Secret Required* Tenacity Solutions LLCNetwork Engineer *Active Top Secret Required*Washington, DCThe selected candidate will operate within a Secure Compartmented Information Facility (SCIF) and be responsible for ensuring the reliability, security, and performance of Treasury’s classified network infrastructure supporting the Treasury Foreign Intelligence Network (TFIN). Support secure Video Teleconferencing (VTC) services, including network connectivity, firewall traversal, Quality of Service (QoS), and coordination with system and VTC support teams.
Senior Network Engineer LeidosSenior Network EngineerAccokeek, MD$107,900–$195,050The Senior Systems Engineer will provide technical leadership and support in the areas of IT planning, solution specification/design, implementation and target architecture development for the AFNCR Consolidated Communication Center (CCC). If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.
Data Storage Engineer LeidosData Storage EngineerPoolesville, MD$107,900–$195,050If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. Extensive experience administering enterprise-level data storage systems (Dell Storage Center, Dell Compellent, and Data Domain preferred) with a demonstrated understanding of the following services and technologies.
NewCOMSEC Engineer Career ListingsCOMSEC EngineerFort Belvoir, VAThe I3TS program provides enterprise-wide IT support to enable DTRA’s Information Management & Technology Directorate (ITD) to consolidate, modernize, and continuously innovate the delivery of IT services and mission capabilities to DTRA’s internal and external mission partners operating in CONUS and OCONUS locations. Experience in network and network security design where under general direction, manages the design, installation and support of LAN/WAN based networks and security components such as routers, switches and firewalls, and datacenter equipment.
NewActive Directory Engineer System OneActive Directory EngineerSpringfield, VA$130,000 / yearSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Manage Active Directory, DNS, SCOM\SCCM, group policy, and PowerShell scripting to ensure system integrity and security.
NewSr Electrical Engineer (Secret Clearance) System OneSr Electrical Engineer (Secret Clearance)Chantilly, VA$110,000–$170,000 / year10+ years of experience in design and specification of: lighting systems, power systems, fire alarm systems, telecom/data systems, medium voltage power systems, UPS systems, emergency generator systems, grounding systems, and utility systems. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
NewSenior Network Engineer Defy IncSenior Network EngineerSterling, VAJob Description The Senior Network Engineer will be responsible for the design, documentation, instantiation and maintenance of both development and production networks. Perform troubleshooting techniques across all layers of the TCP/IP stack to quickly resolve network outages and deficiencies.
Cloud Engineer LeidosCloud EngineerArlington, VA$87,100–$157,450If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. June 25, 2026For 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.
NewAudio AI Engineer Dev Technology GroupAudio AI EngineerWashington, DC$80,000–$160,000 / yearAs a Washington Post Top Workplace award winner for the past THIRTEEN years in a row, the Top Workplaces USA for the past five years, and a recipient of the Companies As Responsive Employers (CARE) Award for the past six years, Dev Technology employees enjoy: Generous and flexible time-off policy. Documentation & communication: Produce clear model cards, dataset documentation, and evaluation write-ups that let technical and non-technical stakeholders understand what the model does, how it compares to alternatives, and what its risks and limitations are.
Enterprise Architect/Systems Engineer LeidosEnterprise Architect/Systems EngineerClarksburg, MD$131,300–$237,350Our 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. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.