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Senior Security Engineer
Reston, Virginia, United States
$105k-$125k/yr OnsiteFull Time
5+ YOE5+ years designing, implementing, and operating enterprise security tools; experience with incident response, vulnerability management, cloud and Microsoft 365 security; strong documentation and communication skills.
Microsoft 365, Microsoft Azure, SIEM
3w
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Information Security Engineer
Reston, Virginia, United States
$100k-$110k/yr HybridFull Time
3+ YOEBachelor's in cybersecurity or related, 3+ years in information security or security operations, experience with XDR/EDR, Entra ID, cloud platforms, incident investigation, scripting and automation.
Microsoft XDR, CrowdStrike Falcon, Microsoft Entra ID, AWS, Microsoft Azure, Google Cloud Platform (GCP), PowerShell, Python, Kusto Query Language (KQL), Splunk Processing Language (SPL), Microsoft Graph API, REST APIs, OpenCode, Claude, Gemini, GitHub Copilot, ChatGPT
1mo
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Senior Communications Security (COMSEC) Engineer
Fort Belvoir or Reston
$110k-$125k/yr OnsiteFull Time
4+ YOEDoD Top Secret/SCI, TACLANE operator training, 4+ years IT experience with ≥2 years COMSEC, familiarity with GEMOne/Chimera, KG-175 devices, DoD 8140/IAT Level II (Security+ CE) preferred.
GEMOne, Chimera, KG-175F, KG-175G, KG-175X, TACLANE, Cisco
2w
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Principal Software Developer Engineer
Reston or Austin or Seattle
$115k-$235k/yr OnsiteFull Time
6+ YOEU.S. citizenship and active TS/SCI with Poly required. Senior software engineer with multi-year experience designing, building, testing, and operating distributed application services; experience with databases, programming/scripting, secure development, code review, and mentorship.
Oracle Cloud Infrastructure, AWS, Azure, Google Cloud, RESTful APIs, microservices, CI/CD, containers, Kubernetes, Linux, observability
2mo
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Sr. Staff Site Reliability Engineer-Federal, Security Clearance
Crystal City, Virginia, United States
$140k-$200k/yr OnsiteFull Time
7+ YOEActive Secret clearance; 7+ years SRE experience in operations and engineering; Linux, network troubleshooting, automation (Ansible, Terraform); Python; AWS ECS/Kubernetes; vulnerability monitoring; virtualization and networking.
Python, Ansible, Terraform, Kubernetes, AWS, Linux, Docker
3w
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Network Engineer
Sterling, Virginia, United States
$135k-$155k/yr HybridFull Time
4+ YOE4+ years network engineering experience designing and operating secure multi-cloud networks (AWS/GCP), BGP/OSPF, DNS, cloud interconnects, federal compliance (FedRAMP/CMMC/NIST 800-53), and infrastructure-as-code automation.
AWS, GCP, BGP, OSPF, Direct Connect, Transit Gateway, VPC peering, PrivateLink, Cloud Interconnect, Equinix, Route53, Cloud DNS, DNSSEC, Terraform, CloudFormation
1mo
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Security Manager
Charlotte or Herndon or Minneapolis
HybridFull Time
5+ YOE5+ MgmtBachelor's in Engineering (or 10 years relevant experience), 5+ years in security/classification operations, 3+ years as a Derivative Classifier, ability to obtain Q Clearance, and 5+ years managing teams.
3w
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AI/ML Engineer (Systems Engineer, Sr)
Chantilly, Virginia, United States
OnsiteFull Time
1+ YOEU.S. citizen eligible for DoD Secret clearance, 1+ years backend/systems engineering experience, proficiency in Python/C++/Rust, experience with agentic systems, graph data modeling, real‑time pipelines, API design, and secure operations.
Python, C++, Rust, Neo4j, DGraph, ArangoDB, CUDA, REST, GraphQL, gRPC, SOAP, UDP, TCP, Pub/Sub, CI/CD
3mo
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Operational Systems Engineer
Chantilly, Virginia, United States
$94k-$198k/yr OnsiteFull Time
Active TS/SCI with polygraph; BA/BS or equivalent experience; TCP/IP networks; VPN/NAT troubleshooting; Unix/Linux and Windows administration; Python or scripting; network security and operational governance.
Unix, Linux, Windows, Python, Networking, VPN, NAT
1mo
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Satellite Operations Engineer
Dulles or Washington or California
OnsiteFull Time
BS or MS in aerospace/astrodynamics/systems engineering, demonstrated flight dynamics and orbital mechanics experience, proficiency with STK/GMAT/FreeFlyer/Orekit, software skills in Python/MATLAB/C/C++, and U.S. person status; security-clearance eligibility.
STK, GMAT, FreeFlyer, Orekit, Python, MATLAB, C/C++, Git, Amazon Web Services (AWS)
2w
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Chief Engineer, Senior
Chantilly, Virginia, United States
$87k-$198k/yr OnsiteFull Time
Design, deploy, and operate cloud/hybrid and on-prem environments; apply DevSecOps principles; supervise teams; possess TS/SCI with polygraph and bachelor\u0002s degree; obtain specified security certifications within 6 months.
1mo
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Senior Cybersecurity Engineer - Network Security (US Federal)
Reston or District of Columbia or Maryland or Virginia
$160k-$239k/yr HybridFull Time
7+ YOEUS-citizen required for federal contracts; 7+ years network/platform/infrastructure security experience, 2+ years WAF deployment/operation, DDoS/WAF/IPS production experience, Terraform and GoLang/Python expertise, Kubernetes operators, cloud (AWS/GCP) experience.
Terraform, GoLang, Python, Kubernetes operators, AWS, GCP, WAF, IPS
1w
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Senior Platform Engineer-TS Required
Sterling or Reston
HybridFull Time
5+ YOEDesign, build, secure, automate, and operate virtualization, networking, endpoint hardening, IaC, and observability for a high-assurance environment; active TS/SCI required.
Proxmox VE, KVM/QEMU, VMware ESXi, Terraform, Ansible, Packer, Python, Bash, AWS, GCP, Azure, Git, SIEM
3w
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DevOps Engineer Senior
Reston, Virginia, United States
$120k-$140k/yr OnsiteFull Time
5+ YOEBachelor's degree or HS plus 5+ years in software development, configuration control, testing, security, automation, or cloud orchestration; active TS/SCI with CI poly, valid state operator's license, DevSecOps toolchain experience, and ability to perform vulnerability analysis.
GIT, Jira, Jenkins, JMeter
1mo
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Site Reliability / Operations Engineer (TS/SCI)
Herndon or Colorado Springs or Melbourne
$82k-$132k/yr OnsiteFull Time
2+ YOEActive TS/SCI clearance, Bachelor's in CS/IS/Engineering or equivalent, Security+ certification, 2+ years systems/automation/DevOps experience, Linux and Bash proficiency, ELK Stack experience, strong troubleshooting and communication skills.
RHEL, CentOS, Ubuntu, Bash, Elasticsearch, Logstash, Kibana, Python
1mo
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Site Reliability / Operations Engineer (TS/SCI)
Herndon or Colorado Springs or Melbourne
$82k-$132k/yr OnsiteFull Time
2+ YOEActive TS/SCI clearance, Bachelor's in CS/IS/Engineering or equivalent, Security+ certification, 2+ years systems/DevOps/automation experience, Linux and Bash proficiency, ELK Stack experience, strong troubleshooting and communication skills.
ELK Stack, Elasticsearch, Logstash, Kibana, Bash, Python, RHEL, CentOS, Ubuntu
1mo
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UAS Integration Engineer
Summit Point, West Virginia, United States
$75k-$131k/yr OnsiteFull Time
5+ YOEBachelor’s degree in a technical field plus 5+ years (or 9+ years experience in lieu of degree), FAA Part 107, UAS integration/flight operations, CAD and soldering skills, RF/GNSS familiarity, ability to travel up to 30%, and ability to obtain/maintain security clearance.
CAD, Computerized Maintenance Management System (CMMS), Low Altitude Authorization and Notification Capability (LAANC), mission planning software, GPS/GNSS
1w
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Network Engineer
Chantilly or McLean
$112k-$222k/yr OnsiteFull Time
5+ YOE5+ years configuring Cisco IOS and/or Cisco NX-OS in datacenter environments, VLANs, routing, and security; active TS/SCI with polygraph required.
Cisco IOS, Cisco NX-OS
1mo
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GEOSPATIAL OPERATIONS ENGINEER
Herndon, Virginia, United States
OnsiteFull Time
Requires active Top Secret clearance (TS/SCI w/Poly), Linux command-line, Apache/Apache Tomcat troubleshooting, Tier 2 troubleshooting, QGIS/ArcGIS/OSM experience, and CompTIA Security+ (or ability to obtain).
Linux, Apache, Apache Tomcat, QGIS, ESRI ArcGIS, OpenStreetMap (OSM), AWS, Zabbix, ELK, Splunk, Ansible, Chef, Puppet
2mo
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Sr. Service Engineer- CTJ- Poly
United States or Redmond or Reston or Annapolis Junction or Atlanta
$120k-$235k/yr OnsiteFull Time
4+ YOEBachelor's in a relevant technical field and 4+ years technical experience (or equivalent); experience with large distributed or air-gapped environments and Azure; ability to operate in secure sovereign clouds; must hold U.S. Top Secret/SCI clearance (SSBI + Polygraph) and U.S. citizenship; strong incident response, automation, and collaboration sk...
Microsoft 365, Microsoft Office 365, Microsoft Exchange, Microsoft Outlook, Microsoft Teams, Microsoft SharePoint, Microsoft OneDrive, Microsoft Purview, Microsoft Defender for Office, Microsoft CoPilot, Microsoft Azure, Microsoft Exchange Online Protection, Microsoft Exchange Transport