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Vulnerability Researcher
Herndon, Virginia, United States
$150k-$300k/yr OnsiteFull Time
7+ YOEActive TS/SCI clearance and 7+ years vulnerability research, reverse engineering, exploit development, programming (C,C++,Java,JavaScript), and mobile malware analysis for iOS/Android.
C, C++, Java, JavaScript, IDA Pro, OllyDbg, Windbg, Windows, Linux/Unix
4w
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CNO Vulnerability Researcher
Herndon, Virginia, United States
OnsiteFull Time
8+ YOE8+ years vulnerability research or 10+ years with HS diploma; experience reverse engineering, low-level Windows/Linux internals, C/C++, Python, assembly, and security research tools; active Secret clearance required.
IDA Pro, Ghidra, Radare, Binary Ninja, SysInternals, GDB, WinDBG, Python, C/C++, Assembly (x86/x64), JIRA, Confluence, Crucible
1mo
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Mobile Vulnerability Researcher
Chantilly, Virginia, United States
OnsiteFull Time
3+ YOE3+ years vulnerability research or reverse engineering experience; strong Android and low-level systems knowledge; proficiency in C/C++, Python; experience with IDA Pro/Ghidra/Frida; bachelor’s in CS or CE (or equivalent); TS/SCI eligibility.
Android, C, C++, Python, IDA Pro, Ghidra, Frida
2w
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Security Engineer, Infrastructure Application Security
Herndon, Virginia, United States
OnsiteFull Time
Bachelor's in engineering/CS, knowledge of system vulnerabilities and remediation, experience with web protocols and threat modeling, coding/scripting experience, penetration testing knowledge.
AWS, Python, Perl, Bash, PowerShell, HTTP, DNS, TCP/IP
2w
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Civil & Industrial Engineer Expert
Reston, Virginia, United States
$62k-$141k/yr OnsiteFull Time
12+ YOE12+ years civil/industrial engineering experience, TS/SCI clearance, Master’s degree in engineering, ability to produce detailed all-source technical assessments and perform facility vulnerability analyses.
1w
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Senior Principal Cyber Mobile CNO Engineer
Sterling or Chantilly
$122k-$253k/yr OnsiteFull Time
5+ YOETS/SCI with polygraph, 5+ years C/C++ on Unix/Linux, Android/iOS mobile development, mobile vulnerability assessment, reverse engineering, degree in a technical discipline.
C, C++, Unix, Linux, Make, CMake, Hex-Rays, Ghidra, AOSP, Bitbucket, Bamboo, JIRA, git, ARM64, ARM32
3w
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Senior Systems Engineer
Boonsboro, Maryland, United States
OnsiteFull Time
Design and maintain resilient infrastructure (Linux, Windows, Cisco IOS, cloud), implement HA/DR and failover, lead containerization (Kubernetes/OpenShift/Docker), ensure security compliance and vulnerability remediation, and support DR exercises and system testing.
Linux, Windows, Cisco IOS, cloud, Kubernetes, OpenShift, Docker, CI/CD, RBAC, AI, ML
2w
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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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SATCOM Network Engineer
Chantilly, Virginia, United States
OnsiteFull Time
10+ YOEMust hold TS/SCI with polygraph; expertise in RF communications, IP networking (TCP/IP, UDP, Ethernet, MPLS), information security, vulnerability assessments, and configuring/troubleshooting routers, switches, firewalls, and satellite modem equipment. 10+ years experience with a degree (15+ without).
TCP/IP, UDP, Ethernet, MPLS, routers, switches, firewalls, satellite modem equipment, spectrum analyzers, network analyzers, power meters, environmental test chambers, EMI/EMC
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
1w
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Principal/Sr Principal Cyber Systems Engineer
Dulles or Gilbert
$125k-$213k/yr OnsiteFull Time
Requires TS/SCI clearance, STEM degree with multi-year cyber systems experience (role-dependent), RMF, STIG/ACAS/Nessus experience, system hardening, vulnerability remediation, and strong technical writing.
DISA Security Technical Implementation Guide (STIG), ACAS, Tenable NESSUS, Fortify, Docker, Windows, Red Hat, SIEM
1mo
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Sr Cybersecurity Engineer
Reston, Virginia, United States
$160k-$239k/yr HybridFull Time
8+ YOE8+ years in incident response, intelligence, vulnerability assessment, security engineering or operations; experience with AI-based offensive tools; proficiency in Python/Java/Kotlin/Scala/JavaScript; threat hunting, detection development, and incident response skills.
Splunk, Spark, Python, Java, Kotlin, Scala, JavaScript
2w
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Civil & Industrial Engineer Expert
Reston, Virginia, United States
$62k-$141k/yr OnsiteFull Time
12+ YOE12+ years civil/industrial engineering experience, active TS/SCI clearance, ability to produce all-source technical assessments and facility vulnerability analyses, DoD/IC knowledge, master's degree in engineering preferred.
2mo
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Sr. Cyber Engineer (AI)
Chantilly, Virginia, United States
OnsiteFull Time
7+ YOE7+ years in vulnerability research, reverse engineering, and security; experience with IDA Pro, Ghidra, Binary Ninja, Frida; Python and low-level languages; TS/SCI clearance.
IDA Pro, Ghidra, Binary Ninja, Frida, Python, C, C++, Rust, Assembly, ELF, PE
1mo
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Senior Program Protection and Policy Compliance Systems Engineer
Chantilly, Virginia, United States
OnsiteFull Time
7+ YOEActive TS/SCI with CI Polygraph; Bachelor's +9 yrs or Master's +7 yrs relevant experience; experience developing program protection plans, threat/vulnerability assessments, mitigation strategies, and working independently with limited government direction.
1mo
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Cybersecurity Remediation Engineer
Atlanta or Austin or Herndon
$111k-$180k/yr HybridFull Time
4+ YOEBachelor's degree required; ~4+ years security or related engineering experience; experience with incident response, vulnerability remediation, cloud and IaC, scripting and automation; strong communication and problem-solving; must be authorized to work without visa sponsorship.
Python, Ansible, Terraform, IBM Cloud, AWS, Azure, GCP, Windows, Linux, EDR, NGFW, IDS, SIEM, SOAR, Kubernetes, CI/CD, MITRE ATT&CK, OWASP Top 10
1w
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Information Systems Security Engineer (ISSE)
Herndon, Virginia, United States
$135k-$216k/yr OnsiteFull Time
10+ YOELead security engineering for complex information systems, support RMF A&A, DISA STIG compliance, SIEM log analysis, vulnerability assessment, and work in SCIF with TS/SCI clearance.
Splunk, ACAS, DISA STIGs, STIG Viewer, Xacta, AWS, Google Cloud, Cloudtrail, Cloudwatch, Openshift, Antible, Linux
1w
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Cybersecurity Engineer
Oklahoma City or Chantilly
$90k-$190k/yr HybridFull Time
7+ YOEBachelor's degree plus 7+ years experience; experience with red team/incident response, vulnerability assessment, Linux, Splunk; GPEN/GWAPT/OSCP/OSWA preferred; programming in Python/JavaScript/Go/.NET desired.
Splunk, Python, JavaScript, Go, .NET, Windows, Linux, macOS
3w
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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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Cybersecurity Engineer
Herndon, Virginia, United States
RemoteFull Time
Active U.S. Secret clearance, bachelor's in cybersecurity/CS/IT, experience with RMF/ATO/SSP/POA&M on DoD IL systems, hands-on SIEM/IDS/IPS/EDR and vulnerability tooling, and certifications such as CompTIA Security+, CISSP, or CISM.
SIEM, IDS/IPS, EDR, Salesforce Shield Platform Encryption, Event Monitoring, Audit Trail, Security Health Check
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