Locust Grove, VA 22508 • (14.6 miles) • Full Time • 9/12/2025

Overview: SimVentions is searching for System Engineers to join our team in support of Tactical Tomahawk Weapons Control System (TTWCS). The candidate will work on a diverse team with fellow SimVentions’ system engineers and government personnel. The ideal candidate will have experience with MBSE methods and environments, Cameo and/or other modeling tools, developing system designs and requirements, and participating in working groups and integrated product teams (IPT). The ideal candidate will be able to perform core engineering tasks (develop requirements, define interface updates, update architectural diagrams, etc.) within models. An understanding of MBSE and how to apply its methods and principles to completing engineering tasks is highly desired. Travel: Travel to NSWCDD once every w

Chantilly, VA 20151 • (43.3 miles) • Full Time • 8/29/2025

MANTECH seeks a motivated, career-drivenPrincipal Cyber Security Systems Engineerto join our team inChantilly, VA. This role offers an exciting opportunity for an experienced engineer to secure and optimize complex infrastructure in support of critical missions. You will work closely with cross-functional teams to ensure secure, scalable, and high-performing systems.You will help design, implement, and maintain secure and scalable systems and infrastructure aligned to mission and business needs. Your role ensures performance, integrity, and protection across enterprise platforms. You will serve as a senior technical leader and mentor, guiding strategic improvements while staying on the forefront of evolving cybersecurity technologies.Responsibilities include but are not limited to:Designin

Chantilly, VA 20151 • (43.3 miles) • Full Time • 8/29/2025

MANTECH seeks a motivated and experienced Senior Principal Azure Cloud Engineer to join our team in Chantilly, VA.In this role, you will support mission-critical operations by designing, implementing, and managing Azure cloud infrastructure. You will collaborate with cross-functional teams to enhance cloud environments using modern tools and best practices.Responsibilities include but are not limited to:Supporting Azure cloud services and infrastructure using Infrastructure as Code (IaC) tools such as Terraform or ARM templatesTroubleshooting and resolving issues related to Azure cloud environmentsImplementing Azure security best practices and managing Windows and Linux serversLeveraging Azure data services and containerization technologies alongside DevOps tools including Azure DevOps, Je

Stafford, VA 22554 • (30.5 miles) • Full Time • 8/26/2025

ManTech seeks a motivated, career and customer-oriented Model Based Systems Engineer (MBSE) to join our team in Stafford, VA.This is a full-time onsite position where you will provide subject matter expertise to perform MBSE activities using Cameo Systems Modeler in support of a critical Department of Defense (DoD) mission. The ideal candidate will bring significant expertise in systems modeling, operational architecture, and mission thread development in alignment with DoDAF and UAF frameworks.This role is pivotal in supporting mission engineering analysis, capability gap assessment, and architecture development within a highly dynamic and collaborative environment to enable and enhance our Nation's fighting forces.Responsibilities include but are not limited to:Support the development an

Stafford, VA 22554 • (30.5 miles) • Full Time • 8/24/2025

ManTech seeks a motivated, career and customer-oriented Senior Model Based Systems Engineer (MBSE) to join our team in Stafford, VA.This is a full-time onsite position where you will provide subject matter expertise to perform MBSE activities using Cameo Systems Modeler in support of a critical Department of Defense (DoD) mission.The ideal candidate will bring deep expertise in systems modeling, operational architecture, and mission thread development in alignment with DoDAF and UAF frameworks. This role is pivotal in supporting mission engineering analysis, capability gap assessment, and architecture development within a highly dynamic and collaborative environment to enable and enhance our Nation's fighting forces.Responsibilities include but are not limited to:Lead the development and m

Chantilly, VA 20151 • (43.3 miles) • Full Time • 9/3/2025

ManTech seeks a motivated, career and customer-oriented Senior Network Engineer to join our team in Chantilly, VA. This is a position requiring onsite work at customer locations within the local area (up to 10% travel).Responsibilities include but are not limited to:Designing and integrating comprehensive network, VoIP, VTC, and data center solutions, adhering to security guidelines and customer specifications to ensure robust and secure communication infrastructures.Managing the end-to-end integration of black and red networks, overseeing design, installation, maintenance, and coordination of a growing network with multiple external services to support operational needs.Diagnosing and resolving complex issues related to customer sites, telecommunications circuits, routing, switching, VoIP