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Senior Security Engineer
Bethesda, Maryland, United States
OnsiteFull Time
5+ YOE5+ years information security experience, including 3+ years cloud security; BA/BS in CS/IT or related field (or equivalent experience); strong communication and cross‑functional collaboration.
Tenable Security Center, Nessus, Splunk, Python, AWS, Azure
2mo
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Senior Security Engineer
McLean, Virginia, United States
OnsiteFull Time
6+ YOE6+ years security engineering; offensive security; cloud AWS; tooling for security testing (Python/Go); web app vulnerability analysis; threat modeling; translate findings to engineering.
Python, Go, AWS, ECS, EC2, RDS, S3, IAM
2mo
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Senior Microsoft Security Engineer
Adelphi, Maryland, United States
$116k-$131k/yr HybridFull Time
10+ YOESenior security engineer with Microsoft Defender ATP, Azure Security Center, information protection, risk assessments, and 10+ years IT security experience.
Microsoft Defender ATP, Azure Security Center, Microsoft Information Protection, Splunk, Cisco ASA, Palo Alto, firewalls, intrusion detection systems, patch management
2mo
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Email Security Engineer, Senior
Fort Meade, Maryland, United States
$87k-$198k/yr OnsiteFull Time
Senior email security engineer with F5 LTM, network design, and DoD experience.
F5 LTM, tmsh, bash, imish, ZebOS, Azure, BGP, IPv6, Cisco, VRF, NIPR, BIND, RedHat, SMTP, Security+, IAT
1mo
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Senior Security Engineer
Austin or Bochum or Dubai or Geneva or London or Singapore or Tokyo or Washington
OnsiteFull Time
Senior-level security engineering experience with cloud (AWS), application security, vulnerability management, DLP, scripting/automation (Python or Bash), and experience assessing SaaS/security tools (Wiz, CrowdStrike). Strong communication skills.
AWS, Python, Bash, Wiz, CrowdStrike, Google Workspace, GitHub Copilot, Claude Code, Codex, Cursor, Gemini, Devin, SonarQube, SonarQube Foundation Agent, SonarSweep, Sonar Context Augmentation, DLP
2mo
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Senior Network Security Engineer
Columbia, Maryland, United States
$121k-$266k/yr OnsiteFull Time
8+ YOEActive TS/SCI with Polygraph; 8+ years network security engineering; DoD 8570 IAT II; 3 of PCNSA, SNSA, SNSP, Symantec ProxySG, Cisco CCNA or higher; Bachelor’s degree or 5 years alternative experience.
LAN/WAN, Network design, Security testing
3w
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Senior Cloud & Security Engineer
Ashburn or United States
$130k-$170k/yr RemoteFull Time
5+ YOE5+ years cloud/security engineering with AWS, Java/Spring experience, strong SQL, JSON/GeoJSON processing, AWS security tooling, incident response, and excellent communication.
Java, Java Spring Framework, SQL, Snowflake SQL, Amazon Web Services (AWS), AWS Elastic Container Service, AWS X-Ray, JSON, GeoJSON, Scala, Python, Google Workspace
2mo
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Security Engineer – Lead (R-00161)
Arlington or Washington or United States
OnsiteFull Time
True Zero Technologies: A veteran-owned small business delivering security and technology services.
Senior security engineer with RMF/FISMA experience, capable of translating security requirements into technical designs and leading security engineering in enterprise and classified environments.
Splunk Enterprise Security, MITRE ATT&CK, RMF, FISMA
2mo
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Senior Network Security Engineer (SDN / Multi-Enclave)
College Park, Maryland, United States
$146k-$234k/yr OnsiteFull Time
12+ YOE12+ years of network security experience in DoD/IC environments; BS in CS/Cybersecurity Engineering/System/Network Engineering; CCNA with progress toward CCNP; active TS/SCI with polygraph.
Cisco IOS, Juniper, FORE, Cisco routers/switches, VPN, IDS/IPS, SDN, TACACS, AAA, PoP/ConOps
1mo
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Senior Platform Engineer - Security
Washington or Sarasota or Miami or New York City or Toronto or Longboat Key
$165k-$205k/yr OnsiteFull Time
Strong Linux systems engineering and security hardening experience; vulnerability management, OpenStack/Ceph/Kubernetes familiarity; automation with Ansible/Terraform and scripting in Bash or Python; audit and compliance experience.
CIS Benchmarks, STIGs, OpenStack, Nova, Neutron, Keystone, Cinder, Ceph, Kubernetes, CIS Kubernetes Benchmarks, Ansible, Terraform, Bash, Python, SELinux, AppArmor, auditd, PAM, SIEM, EDR, Elastic, Splunk, Wazuh, Falco, Vault, LUKS/dm-crypt, CVSS, ISO 27001, SOC 2, PCI DSS, FedRAMP, Pod Security Standards
1mo
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Senior Security Engineer
Washington, District Of Columbia, United States
$145k-$165k/yr OnsiteFull Time
8+ YOEBachelor's degree, active or eligible Public Trust clearance, 8+ years security engineering experience, multiple security certifications, knowledge of STIGs, SDLC and systems engineering, strong written and verbal communication.
Security Technical Implementation Guides (STIGs), Waterfall Model, Spiral Model
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Senior Security Engineer
Washington or United States
OnsiteFull Time
5+ YOEHands-on security engineer to design and implement cloud and network security (AWS required), perform RMF-based reviews, develop IaC blueprints, script cloud assessments, and research emerging security capabilities. CISSP required; 5+ years experience.
RMF, CSF, FISMA, Fedramp, SIEM, IaC, CICD, DevSecOps, AWS IAM, KMS, S3, RDS, SNS, SQS, Organization, Guard Duty, Security Hub, Detective, Config, CloudTrail, CloudWatch, Lambda, Microsoft Azure E3/E5, Active Directory, Blob, Microsoft Azure Security Center, Microsoft Azure Key Vault, SSE, Microsoft Azure Monitor, Microsoft Log Analytics, Policy, ZTNA, SASE, ICAM, OKTA, CWPP, SOC Operations, Vulnerability Threat Management, IDS, IPS, WAF, CDN, DDOS, LAN, WAN, Hypervisor, Container security, Serverless, Microservices, AI/ML
3mo
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Senior Physical Security Engineer
Arlington, Virginia, United States
OnsiteFull Time
5+ YOEActive Secret clearance; Bachelor's or Master's with 5+ or 7+ years in security systems; VMS/CCTV, electrical security, system architecture; travel; IAT II certification.
VMS, CCTV, Bosch, Milestone, Genetec, ACS, PSIM, PIDS, IDS, SOP, SOW
2mo
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AI and ML Security Engineer, Senior
Fort Meade, Maryland, United States
$99k-$225k/yr OnsiteFull Time
3+ YOESenior AI/ML security engineer with TS/SCI with poly clearance; 3+ years AI/ML experience (or 6+ years in lieu of degree); BS preferred.
Python, Linux, Docker, Docker Compose, LLMs, AI/ML evaluation, red-team tooling
3w
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Staff Security Engineer, Application Security
Chicago or California or Colorado or Florida or Georgia or Illinois or Indiana or Minnesota or Missouri or Montana or New Jersey or New York or North Carolina or Ohio or Oregon or Pennsylvania or South Carolina or Texas or Utah or Vermont or Virginia or Washington or Washington or Wisconsin
$210k-$260k/yr HybridFull Time
7+ YOE7+ years in application/product/security engineering; hands-on threat modeling, vulnerability management, secure design, CI/CD integration, automation using Python/Go; experience with cloud-native AWS/GCP environments.
AWS, GCP, Python, Go, SAST, SCA, DAST, CI/CD, AI/LLMs
3d
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Senior Security Engineer, AWS Human Access Security
Arlington, Virginia, United States
$178k-$227k/yr OnsiteFull Time
5+ YOE5+ years troubleshooting and security issue identification, 5+ years scripting/programming and code review, experience in mentoring or tech lead roles, knowledge of Scala/Java/Python/C/C++/Go.
Scala, Java, Python, C, C++, Go, AWS
1mo
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Senior Security Engineer, National Security
Annapolis Junction or Maryland
$174k-$253k/yr OnsiteFull Time
5+ YOERequires US citizenship and active Top Secret/SCI clearance with polygraph, bachelor's degree or equivalent, 5+ years security engineering and assessments, 5+ years coding, EM/AI security experience, and familiarity with SIEM/IDS/CI-CD pipelines.
Mandiant, SIEM, IDS/IPS, CI/CD, LLMs, SDLC
2w
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Senior Security Engineer
Alexandria, Virginia, United States
$110k-$135k/yr OnsiteFull Time
Experience supporting Microsoft 365 security, governance, compliance, identity and access management, security investigations, and security documentation for collaboration platforms.
Microsoft 365, Microsoft Teams, Microsoft SharePoint Online, Microsoft OneDrive for Business, Microsoft Entra ID, Microsoft Defender, Microsoft Purview, Microsoft Copilot
2w
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Senior Naval System Security Engineer
Dahlgren, Virginia, United States
$140k-$160k/yr OnsiteFull Time
10+ YOE5+ MgmtBS in engineering or 10+ years experience, 10+ years systems engineering with 5 years team leadership, active SECRET clearance required, experience with weapons/combat/C2/fire control systems, program protection and system security engineering.
2mo
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Senior Cloud Platform Security Engineer
Arlington or Richmond
HybridFull Time
6+ YOE6+ years of hands-on security engineering; cloud-native security; Kubernetes platform security; CI/CD, IaC; scripting; AI security; security tooling in cloud environments.
AWS, GCP, Azure, Kubernetes, CI/CD, Infrastructure as Code, Terraform, CloudFormation, Python, PowerShell, Ansible, OPA/Gatekeeper, Falco, Wiz, Datadog, Snyk
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