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.
NewSenior Salesforce Technical Architect GuidehouseSenior Salesforce Technical ArchitectWashington, DC$149,000–$248,000 / yearDesign end-to-end technical architectures across Salesforce products, including Salesforce Platform, Service Cloud, Experience Cloud, Public Sector Solutions (PSS), OmniStudio, and custom applications. Compensation decisions depend on a wide range of factors, including but not limited to skill sets, experience and training, security clearances, licensure and certifications, and other business and organizational needs.
NewSenior Cloud Security Architect PlanIT GroupSenior Cloud Security ArchitectReston, VAAI-Native Security Strategy: Architect specialized security frameworks for AI/ML pipelines, focusing on data privacy for training sets, model integrity, and securing LLM-integrated applications against emerging attack vectors. • Threat Modeling & Resilience: Conduct deep-dive threat modeling for complex cloud-native systems, simulating advanced persistent threats (APTs) and "blast radius" scenarios to strengthen system resilience.
Senior Model Based Systems Engineer LeidosSenior Model Based Systems EngineerAlexandria, VA$107,900–$195,050Bachelor’s degree in engineering or related field with 8+ years of prior relevant experience or a master’s degree with 6+ years of experience in one of these areas: systems engineering, software engineering, test engineering or related field. Your role will directly support our diverse portfolio of programs through a combination of requirements and design architecture analysis; MBSE Model development; mentoring junior engineers and assisting technical leadership develop briefing material.
Lead Systems Engineer LeidosLead Systems EngineerBurke, VA$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. June 22, 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.
Enterprise Architect LeidosEnterprise ArchitectElkridge, MD$87,100–$157,450As an Enterprise Architect, you will help develop Fit-For-Purpose enterprise level architecture viewpoints through Model-Based Systems Engineering (MBSE) based on Authoritative Source of Truth (ASoT) to support engineering analysis and data-driven decision-making by senior leaders that enables the modernization and evolution of NC3 capabilities. Under the leadership of the Commander, U.S. Strategic Command (USSTRATCOM), the team leverages subject matter expertise and best practices to transform mission and operational requirements into effective solutions and capabilities.
NewServiceNow HRSD Architect GuidehouseServiceNow HRSD ArchitectMcLean, VAAs a ServiceNow Subject Matter Expert with deep experience in Human Resources Service Delivery (HRSD), you will devise strategies, design, implement, and optimize HR solutions for clients using the ServiceNow platform. Translate complex HR business needs—including employee lifecycle events, case management, and employee experience—into integrated ServiceNow HRSD solutions to address client requirements.
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.
Solution Architect / Engineer LeidosSolution Architect / EngineerCheltenham, MD$131,300–$237,350This role combines high level architectural design with deep technical implementation, requiring an individual who can define target-state architectures, build and optimize solutions, and guide modernization across hybrid and multi cloud environments. Proven hands-on experience designing and implementing solutions across hybrid/multi-cloud environments (AWS and Azure strongly preferred), on-premises data centers, virtualization platforms, and containerized workloads (e.g., Kubernetes/Docker).
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.
DevSecOps Engineer IV PlanIT GroupDevSecOps Engineer IVReston, VAExperience with creating and improving automation scripts across multiple technical stacks using Python, • Experience with troubleshooting and resolving issues related to both open source and commercial tools in public cloud environments. • Experience with AWS & Azure & the development of tools and processes to drive DevSecOps maturity by automating builds, regression testing, monitoring, and pushing releases across environments.
NewSystems Architect PeratonSystems ArchitectSpringfield, Virginia$146,000–$234,000 / yearFull timeResponsibilities: Expert System Architects assist in leading the design and development of solutions for complex applications problems, API design, data services, platform services, cloud services and infrastructure services to meet user requirements and align to strategic goals and the Enterprise Architecture. Recommend, instantiate and operate architecture tools that support analysis and decision making through architecture data in the form of models, simulations, reports and views so that stakeholders may use architecture data in either the acquisition or development lifecycle to answer investment and divestment questions.
Cloud Systems Architect CONTACT GOVERNMENT SERVICESCloud Systems ArchitectWashington, DC$167,032.32–$226,686.72 / yearSkills and attributes for success: The candidate will be knowledgeable of the most recent updates and developments and act as an advisor to our customer in reference to the cloud management strategies to be employed to take advantage of the benefits offered by cloud computing such as being able to function without any restrictions to the workload, initiate as many workstations as necessary per time period and pay only for what they actually use. For the past seven years, we've been growing our government-contracting portfolio, and along the way, we've created valuable partnerships by demonstrating a commitment to honesty, professionalism, and quality work.
Cloud Systems Architect Contact Government Services LLCCloud Systems ArchitectWashington, DC$167,032.32–$226,686.72 / yearSkills and attributes for success: The candidate will be knowledgeable of the most recent updates and developments and act as an advisor to our customer in reference to the cloud management strategies to be employed to take advantage of the benefits offered by cloud computing such as being able to function without any restrictions to the workload, initiate as many workstations as necessary per time period and pay only for what they actually use. For the past seven years, we've been growing our government-contracting portfolio, and along the way, we've created valuable partnerships by demonstrating a commitment to honesty, professionalism, and quality work.
Senior Proposal Solution Architect (Engineer Systems Architect 5) - 28076 Huntington Ingalls Industries IncSenior Proposal Solution Architect (Engineer Systems Architect 5) - 28076Fairfax, VA$161,809–$200,000 / yearWhat you need to have: 15 years relevant experience with Bachelors in related field; 13 years relevant experience with Masters in related field; 10 years relevant experience with PhD or Juris Doctorate in related field; or High School Diploma or equivalent and 19 years relevant experience. Through our Leadership Capability Framework, we define how every team member contributes to our mission and culture: Know & Grow Your People - Commit to learning and supporting team success.
Senior AI Systems Architect Bart & AssociatesSenior 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. The Senior AI Systems Architect leads the design of enterprise AI ecosystems and reusable AI services within the client's AI Enablement Center, enabling AI-as-a-Service capabilities across multiple applications and operational environments.
Systems Architect IntelliDyneSystems ArchitectWashington, DC$145,000–$180,000 / yearThe Systems Architect designs target-state architectures, plans and executes migration workstreams, and ensures on-prem and cloud components operate cohesively throughout the transition - balancing modernization with the reliability of existing infrastructure. The Systems Architect leads the design, operation, and modernization of a hybrid enterprise IT environment, with responsibility for both the current on-premises data center and its ongoing migration to a cloud architecture.
IT Systems Architect Contact Government Services LLCIT Systems ArchitectArlington, VA$120,275.31–$163,230.78 / yearAs an IT Lead System Architect for CGS, you will lead multiple teams consisting of developers, subject matter experts, and stakeholders to convert the business requirements, process workflows, and use cases into a fully functional application. For the past seven years, weve been growing our government-contracting portfolio, and along the way, weve created valuable partnerships by demonstrating a commitment to honesty, professionalism, and quality work.
Systems Architect, Advisor PeratonSystems Architect, AdvisorGermantown, Maryland$104,000–$166,000 / yearFull timeThis hybrid role reports directly to the Task Order Program Manager and serves as a senior technical authority across voice, video, network, firewall, telecommunications, and cellular domains. Develop detailed cost estimates for infrastructure upgrades, new installations, and lifecycle replacement activities; support Independent Government Cost Estimates and proposal efforts, applying specialized knowledge to produce original analytical work products.
Senior Systems Infrastructure Engineer & Architect (Enterprise Mission Systems SME) Virginia Tech Applied Research CorporationSenior Systems Infrastructure Engineer & Architect (Enterprise Mission Systems SME)Arlington, VA$200,000–$275,000 / yearVT-ARC is seeking a Senior Systems Infrastructure Engineer & Architect (Enterprise Mission Systems SME) to support enterprise systems engineering, secure infrastructure modernization, classified enclave implementation, and operational transition for mission-critical enterprise communications, network modernization, and cyber programs within TS/SCI environments. The selected candidate will design, implement, and sustain secure enterprise systems capabilities across Windows, Linux, virtualization, directory services, DNS/DHCP/NTP, PKI/certificates, storage, backup and recovery, monitoring, patching, configuration management, and automation.