NewPrincipal Software Engineer / Tech Lead LeidosPrincipal Software Engineer / Tech LeadArlington, VA$131,300–$237,350 / yearn Implement software release version control, provide release management support throughout a software product's life cycle (initial software development through promotion to Test, QA and Production Environments), ensuring the consistency and reliability of software builds. 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.
NewICS/SCADA & Critical Infrastructure Engineer - TS/SCI Polygraph Required LeidosICS/SCADA & Critical Infrastructure Engineer - TS/SCI Polygraph RequiredCabin John, MD$87,100–$157,450 / yearn Bachelor's degree in STEM field (e.g., electrical engineering, mechanical engineering, or related discipline) and 4+ years of relevant experience, or a Master's degree and 2+ years of relevant experience. The primary focus of this group is understanding commercial and heavy industrial facilities, as well as the interoperability of systems managed by industrial control systems (ICS) and building management systems (BMS).
SR Network Engineer V C2 Essentials, Inc.SR Network Engineer VFrederick, MD$130,000–$145,000 / yearLead or support telecommunications infrastructure projects, including telecommunications room design, rack and row layout, power planning, HVAC considerations, grounding and bonding, shielding, and physical infrastructure requirements. Key Responsibilities: The Engineering Support Specialist shall: Provide engineering support for communications-electronics, telecommunications, and IT systems, including integration and sustainment of mission-critical capabilities.
Senior Network Engineer (SMA 1) E LogicSenior Network Engineer (SMA 1)Washington D.C., DCIncident Response: Support incident response activities by providing network-level analysis, containment actions, and forensic data collection; perform root cause analysis (RCA) for network incidents. You will serve as a senior technical advisor to CBO stakeholders, collaborating with cybersecurity, cloud, and operations teams to resolve complex network issues and support audits, assessments, and compliance initiatives.
Network Engineer (SMA 1) E LogicNetwork Engineer (SMA 1)Washington D.C., DCSecurity Implementation: Support Zero Trust Architecture (ZTA) and network segmentation initiatives; implement and maintain network security controls aligned with NIST SP 800-53 and NIST SP 800-207. You will be responsible for configuring, managing, and troubleshooting network devices to strengthen the security, reliability, and resilience of the network infrastructure while addressing identified Incident Response (IR) remediation requirements.
Senior Transport Network Engineer LeidosSenior Transport Network EngineerWashington DC, District of ColumbiaAugust 1, 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. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
InfoBlox Network Engineer LeidosInfoBlox Network EngineerMarylandJune 4, 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. To satisfy the Technical Expert criteria, candidates must meet one of the following education/experience paths: Bachelor’s Degree in a technical discipline plus 3+ years of relevant technical experience.
Senior Network Engineer (Laurel, MD) Shield Consulting SolutionsSenior Network Engineer (Laurel, MD)Laurel, MD$190,000–$200,000 / yearJob Description: Designs, plans & oversees the implementation of voice, data, & video communication cable and hardware, e.g., switches, routers, gateway or functional servers, to support requirements of the scope and scale consistent with campus or system wide networks. Works with senior IT peers or customer personnel, including executive management, in other departments or campus operations, external vendors, service providers or institutions, to collect requirements, complete projects, or resolve problems.
Senior Network Engineer Shield Consulting SolutionsSenior Network EngineerLaurel, MD$190,000–$200,000 / yearJob Description: Designs, plans & oversees the implementation of voice, data, & video communication cable and hardware, e.g., switches, routers, gateway or functional servers, to support requirements of the scope and scale consistent with campus or system wide networks. Works with senior IT peers or customer personnel, including executive management, in other departments or campus operations, external vendors, service providers or institutions, to collect requirements, complete projects, or resolve problems.
Sr. Network Implementation Engineer LeidosSr. Network Implementation EngineerChantilly, VirginiaNetwork Implementation Engineer to support computer data communications systems, in providing design specifications, testing and inspections for computer networks; plan and implementing upgrades; as well as, analyzing and organizing corresponding hardware and software combined solutions through network modeling. Must be compliant with DoD 8140 Information Assurance Technical (IAT) Level 2. Experience specific to network engineering to include Tier III or higher network operations and/or network design and implementation.
Network Security Automation Engineer Booz Allen HamiltonNetwork Security Automation EngineerMclean, Virginia$99,000–$225,000 / yearExperience with AWS networking services, including VPC, Transit Gateway, Gateway Load Balancer, Network Firewall, Client VPN, NAT Gateway, or VPC endpoints, and developing AWS Lambda functions or custom infrastructure integrations. 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.
Network Architect Booz Allen Hamilton Inc.Network ArchitectUSA, MD$77,600–$176,000 / yearYou'll apply your expertise in routing and switching, network design and architecture, system interoperability, IP engineering, network transport layers, multi-protocol label switching, gateway protocol, and virtual routing and forwarding as you guide our team of problem-solvers to help the DoD evolve and deploy new capabilities and technologies. As a Network Engineer on our team, you'll use your experience in network design and architecture, system interoperability, OSI model, network transport layers, multi-protocol label switching, gateway protocol, and virtual routing and forwarding to support the nation's defense and respond to evolving adversaries.
Control Systems Engineer LeidosControl Systems EngineerSpringfield, VirginiaMay 1, 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. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
NewCloud / DevOps Engineer Johns Hopkins Applied Physics LaboratoryCloud / DevOps EngineerLaurel, MarylandFull timePossess hands-on experience in any of the following technologies: Docker, Kubernetes, hypervisor software (Vmware ESXi, Proxmox, etc.), CI/CD software (Terraform, ArgoCD, Jenkins, Ansible, etc.), Powershell, Windows / Linux Server administration. Our group is looking for talented individuals who can work as part of a team to assist with the basic day to day functions of implementation, maintenance, and lifecycle of software and hardware for our multitude of highly impactful projects.
Information System Security Engineer Booz Allen HamiltonInformation System Security EngineerMcLean, VirginiaOnsite : 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. This role ensures security requirements are integrated into system architectures, designs, development, testing, and sustainment activities, and supports accreditation under the Risk Management Framework (RMF) and JSIG.
Infrastructure Security Engineer SpaceXAIInfrastructure Security EngineerWashington, DC$100,000–$258,000 / yearThis role focuses on securing critical infrastructure across multi-cloud and hybrid environments, with work that may span platforms such as SpaceXAI, X Social, X Money and related systems. Experience with observability and security operations tooling (e.g., Prometheus, Grafana, CloudWatch, Karma; SIEM platforms such as Wazuh).
Elastic Search Engineer LeidosElastic Search EngineerBethesda, MarylandWe leverage cloud-based computing, artificial intelligence (Al), machine learning (ML) and cross-domain transfer systems to provide cutting edge data exploitation, enrichment, triage, and analytics capabilities to Defense and Intelligence Community members. July 17, 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.
Cyber Security Development Engineer - JobID-0255 Innovative Defense TechnologiesCyber Security Development Engineer - JobID-0255Arlington, Virginia$90,000–$184,000 / yearThe Cyber Security Development Engineer is a highly technical role focused on ensuring the security and resilience of our software and systems and will be responsible for designing, building, and maintaining secure systems, applications, and infrastructure to protect against cyber threats. About The Role: Innovative Defense Technologies (IDT), a leading defense technology company, is seeking a Cyber Security Development Engineer to be part of our Advanced Capabilities team and based out of our Arlington, VA location.
PKI Engineer, Senior Booz Allen HamiltonPKI Engineer, SeniorLaurel, MarylandOnsite : 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. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.
Site Reliability Engineer Booz Allen Hamilton Inc.Site Reliability EngineerUSA, VA$62,000–$141,000 / 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. Salary at Booz Allen is determined by various factors, including but not limited to location, the individual's particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.