Cyber Security Engineering Specialist IV/ Firewall Engineer CACICyber Security Engineering Specialist IV/ Firewall EngineerSpringfield, VirginiaTeam CACI on our TCS Program has an exciting and challenging opportunity available for a Network Security Engineer supporting an Intelligence Community customer’s wide-area (WAN), local-area (LAN) and campus-area (CAN) networks across multiple security domains. Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications.
NewSystems Integration & Support Engineer LeidosSystems Integration & Support EngineerBethesda, MarylandThe position requires a broad understanding of software, computing hardware, networking, virtualization, and system integration, with particular emphasis on: Virtualization: Familiarity with creating, configuring, and managing Virtual Machines. August 25, 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.
Principal Security Engineer Fannie Mae CorpPrincipal Security EngineerReston, VADeep knowledge of cloud security architecture, IAM, networking, encryption, logging, monitoring, workload protection, governance, and enterprise network security, including segmentation, firewalls, proxies, VPNs, DNS security, secure web gateways, IPS, load balancing, ZTNA, and SASE. Professional Certifications: Relevant industry certifications such as CISSP, CCSP, PCNSE, AWS Certified Security- Specialty, AWS Certified Advanced Networking- Specialty, Google Professional Cloud Security Engineer, Microsoft Certified: Azure Security Engineer Associate, GIAC certifications, or equivalent credentials.
NewSenior Firewall Engineer - REMOTE NTT DATA Group CorpSenior Firewall Engineer - REMOTEArlington, VARemote$95,918–$222,031 / yearThe Firewall Engineer provides cybersecurity guidance on the implementation and maintenance of network technologies including - but not limited to - Firewall, IPS/IDS, NAC, and PKI; and is responsible for ensuring the network continues to operate efficiently with no or minimum downtime. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com, @nttdatafed.com and @talent.nttdataservices.com email addresses.
Senior Microsoft Cloud Security Engineer/Architect (On-Site) GroundswellSenior Microsoft Cloud Security Engineer/Architect (On-Site)McLean, VirginiaGroundswell is seeking an experienced, hands-on Cybersecurity Specialist to serve as the senior on-site technical support for cybersecurity operations, Microsoft Azure Government, Microsoft 365 GCC High, cloud infrastructure, identity, endpoint security, networking, and incident response. Lead AvePoint backup and recovery for Microsoft 365 GCC High, including monitoring jobs, resolving failures, testing restores, and maintaining recovery practices for Exchange, SharePoint, OneDrive, and Teams.
Senior Systems Modeling Engineer, Beam Planning & Network Optimization Blue OriginSenior Systems Modeling Engineer, Beam Planning & Network OptimizationWashingtonAs a large-scale low Earth orbit constellation operating thousands of satellites across multiple orbital shells, TeraWave must solve resource assignment problems of extraordinary combinatorial complexity — from deciding which beams illuminate which ground cells at each moment in time, through routing data across a dynamic optical inter-satellite link mesh with thousands of nodes and time-varying topology, to assigning satellites to gateways and managing handovers as the constellation moves overhead. As part of this team, you will also contribute to the broader modelling of TeraWave's constellation performance — including its ability to maintain consistent customer service through progressive deployment phases, satellite failures, and orbital manoeuvres — bringing the network optimization perspective into system-level figures of merit and ensuring that resource assignment trades are evaluated in the context of their impact on end-to-end service delivery.
Database Engineer GrvtyDatabase EngineerMarylandThe Database Engineer will support the development and test of various Python based ReST end points, microservices, and data model management capabilities utilizing Django and Flask frameworks to interact with data models such as mariaDB, MongoDB, and PostgreSQL and send data upon request, in JSON format, to UI front ends. What You’ll be Owning: As part of the Secure the Enterprise initiative, develop capabilities to shift from the current manual system security evaluation and authorization process to a new model that emphasizes automation, streamlined processes and approvals, continuous monitoring and assessment, and network data gathering across the entire life cycle of a project.
Platform Infrastructure Engineer CACI ProductsPlatform Infrastructure EngineerColumbia, MD$116,587–$154,200 / yearYou'll work closely with software engineers, network engineers, security engineers, and technical leadership to deliver reliable, scalable infrastructure while helping modernize our architecture toward cloud-native and hybrid-cloud environments. Ncyber is seeking a Platform Infrastructure Engineer to design, build, automate, and maintain the infrastructure that powers mission-critical software systems supporting the National Security Community.
Cribl Engineer - Active Ts/Sci ENS Solutions, LLCCribl Engineer - Active Ts/SciReston, VAENS consults for the Department of Defense (DoD) and Intelligence Community (IC) providing innovative solutions in the core competency area of Identity, Credential and Access Management (ICAM), Software Development, Cyber and Network Security, System Engineering, Program/Project Management, IT support, Solutions, and Services that yield enduring results. Must possess the following DoD 8570.01-M certifications or be willing to obtain within 30 days of hire: o Information Assurance Technician (IAT) Level II certification (currently Security+ CE, CCNA-Security, GSEC, SSCP, CySA+, GICSP, or CND).
NewSr. Endpoint Security Systems Engineer Leidos Holdings IncSr. Endpoint Security Systems EngineerBethesda, MD$107,900–$195,050 / yearWorking in a hybrid cloud/on-prem mission environment the engineer will support integration of Linux and Windows hosted mission systems with the endpoint security product and maintaining the scan policies to ensure proper protection of mission systems from external threats. 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.
Systems Engineer - VERSA Surge Support Emergent TechnologiesSystems Engineer - VERSA Surge SupportReston, VirginiaThe selected candidate will play a critical role in replicating an existing system infrastructure onto new hardware in a live network environment, followed by a seamless migration to establish the new production system. With our comprehensive technological solutions, we aim to share our expertise to help these entities develop a strategic plan, ensure a seamless implementation process, and produce accurate and efficient results.
Software/Applications Architect/Developer/Engineer CSISoftware/Applications Architect/Developer/EngineerReston, VirginiaCloud: Amazon Web Services (e.g., Commercial and Government Cloud Services for DoD and IC, EMR w/Spark and RDS, EC2, EBS, S3, Route 53, RDS, VPC, ELB, CloudWatch, CloudFormation, CloudTrail, Blue Green deployment, Auto scaling, Trusted Advisor, Identity & Access Management, Simple Notation Service, Billing Console), Microsoft Azure. Depending on current team needs, responsibilities may include: identify and document system scope and objectives; design, code, test, debug, and document new programs; prepare detailed specifications; contribute to development of security authorization documentation; represent program in design reviews and demonstrations; and mentor junior developers.
Dev(Sec)Ops Developer/Engineer CSIDev(Sec)Ops Developer/EngineerReston, VirginiaCloud: Amazon Web Services (e.g., Commercial and Government Cloud Services for DoD and IC, EMR w/Spark and RDS, EC2, EBS, S3, Route 53, RDS, VPC, ELB, CloudWatch, CloudFormation, CloudTrail, Blue Green deployment, Auto scaling, Trusted Advisor, Identity & Access Management, Simple Notation Service, Billing Console), Microsoft Azure. Certifications: We prefer one or more of the following certifications: AWS Cloud certifications (e.g., AWS Certified Cloud Practitioner, AWS Certified SysOps Administrator, AWS Certified DevOps Engineer, AWS Certified Big Data, AWS Solutions Architect); Microsoft Azure certifications; Professional Cloud Solutions Architect.
UC Engineer ReliasourceUC EngineerWashington DC, District of ColumbiaAt a high level the cutover will include: o Legacy PBX configuration to support Inter-system calling, meaning re-route of internal and PSTN calling to phones that have been migrated to CUCM via SIP trunks. Additionally, a UCCX CSQ or Advanced IVR will be supported per cutover and requires Iron Bow support during cutover and support post cutover.
Cloud Architect/Developer/Engineer CSICloud Architect/Developer/EngineerReston, VirginiaDepending on current team needs, responsibilities may include: developing cloud systems plans and strategy; implementation of enterprise infrastructure and platforms required for cloud computing; and design, development, and deployment of applications into a Cloud or Hybrid Cloud; contribute to development of security authorization documentation; represent program in design reviews and demonstrations; and mentor junior developers. Cloud: Amazon Web Services (e.g., Commercial and Government Cloud Services for DoD and IC, EMR w/Spark and RDS, EC2, EBS, S3, Route 53, RDS, VPC, ELB, CloudWatch, CloudFormation, CloudTrail, Blue Green deployment, Auto scaling, Trusted Advisor, Identity & Access Management, Simple Notation Service, Billing Console), Microsoft Azure.
Senior IT Systems Engineer Compu-Vision Consulting Inc.Senior IT Systems EngineerColumbia, MDThe Senior SE recommends and oversees the configuration of operating systems and system applications, investigating and analyzing feasibility of system requirements, developing system specifications, and identifying advanced methods and solutions to ensure a high level of service to the customers of Columbia Association's (CA) Information Technology (IT) division. Experience Strong technical and analytical background and experience in desktop/server configuration and integration - sufficient to allow for performance as single technical security support or as a lead in a security systems team.
Firewall Engineer Leidos Holdings Inc.Firewall EngineerArlington, VA$92,300–$166,850 / yearAs part of this task order, Leidos will manage the commercial cloud migration and fully automate the continuous development & continuous integration environment, fourth estate consolidation, professionalize services- ITIL/DevSecOps based processes, improve the customer experience 1st call resolution, and achieve development of a service catalog for Defense Working Capital Fund (DWCF) Model. PRIMARY RESPONSIBILITIES: Identify and remediate misconfigurations, conflicting rules, security gaps, firewall and load balancer security issues, optimize rule-sets, and enhance the overall security posture and performance of Firewalls and Load Balancers.
Principal Endpoint Security Systems Engineer Leidos Holdings Inc.Principal Endpoint Security Systems EngineerBethesda, MD$131,300–$237,350 / yearWorking in a hybrid cloud/on-prem mission environment the engineer will support integration of Linux and Windows hosted mission systems with the endpoint security product and maintaining the scan policies to ensure proper protection of mission systems from external threats. 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.
Information Security Systems Engineer (RHEL Focus) UltraViolet CyberInformation Security Systems Engineer (RHEL Focus)Herndon, VirginiaFounded and operated by security practitioners with decades of experience, the UltraViolet Cyber security-as-code platform combines technology innovation and human expertise to make advanced real-time cybersecurity accessible for all organizations by eliminating risks of separate red and blue teams. UltraViolet Cyber is seeking a Security Engineer who will provide Security Operations Center (SOC) engineering support and guidance to the teams and the client that improve the client’s cybersecurity posture, to include the confidentiality, integrity, and availability of information systems by identifying, verifying, and understanding cyber events.
Security Engineer (Active Secret Clearance) UltraViolet CyberSecurity Engineer (Active Secret Clearance)Herndon, Virginia$90,000–$120,000 / yearFounded and operated by security practitioners with decades of experience, the UltraViolet Cyber security-as-code platform combines technology innovation and human expertise to make advanced real-time cybersecurity accessible for all organizations by eliminating risks of separate red and blue teams. UltraViolet Cyber is seeking a Security Engineer who will provide Security Operations Center (SOC) engineering support and guidance to the teams and the client that improve the client’s cybersecurity posture, to include the confidentiality, integrity, and availability of information systems by identifying, verifying, and understanding cyber events.