2mo
Save
Mark Applied
Hide
Information Security Engineer
Washington, District of Columbia, United States
$145k-$170k/yr OnsiteFull Time
7+ YOE7+ years in information security; strong incident response, detection engineering, IAM, networking, cloud/app security; experience with SIEM and security tooling.
SIEM, Vulnerability Management, Endpoint Security
3w
Save
Mark Applied
Hide
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
3w
Save
Mark Applied
Hide
Information Security Engineer
Herndon, Virginia, United States
OnsiteFull Time
5+ YOE5+ years securing cloud architectures and implementing technical controls across cloud, identity, PKI, and application environments; experience with audits (SOC 2, ISO 27001), DevSecOps, and working with engineering teams.
Jira, Confluence, Active Directory, Entra ID/Azure AD, SAML, OIDC, MFA, PKI, TLS, VPN/IPSec, Java, APIs, OWASP SAMM, Microsoft Security Development Lifecycle, IBM Secure Engineering Framework, SOC 2, ISO/IEC 27001, CMMC, DLP, HIPS, HIDS
2mo
Save
Mark Applied
Hide
Information Security Engineer
Arlington or Sterling
OnsiteFull Time
5+ YOEU.S. Citizenship; TS/SCI clearance; 5+ years info security; AWS security; SIEM; FedRAMP/NIST; cloud security; strong network and vulnerability know-how.
AWS EC2, AWS S3, AWS VPC, CloudTrail, CloudWatch, AWS Security Hub, Nmap, Nessus, Splunk, Linux/Unix, STIG, ATO, SOC, Vulnerability management, IAM, DevSecOps
1mo
Save
Mark Applied
Hide
Senior Information Systems Security Engineer
Washington, District of Columbia, United States
$142k-$236k/yr OnsiteFull Time
7+ YOETS/SCI cleared candidate with 7+–10+ years information systems security experience, expertise in accreditation/A&A/BOE, secure architecture design, and familiarity with Tenable Nessus, IBM Guardium, HP WebInspect, and NMAP.
Tenable Nessus, Security Center, IBM Guardium, HP WebInspect, Network Mapper (NMAP), Cross Domain Solutions (CDS)
1w
Save
Mark Applied
Hide
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
1mo
Save
Mark Applied
Hide
Information Security Engineer III
Washington, District of Columbia, United States
HybridFull Time
5+ YOEBachelor's degree, 5+ years AWS cloud security experience, hands-on with CloudFormation/IaC, Splunk/Nessus/Tenable, AWS security services, and must hold one of CISA/CRISC/CISM/CGEIT/CISSP/CAP; able to obtain security clearance.
AWS, CloudFormation, Splunk, Nessus, Tenable, Palo Alto, Imperva, Fortinet, API Gateway, Lambda, CloudFront
3w
Save
Mark Applied
Hide
Information Systems Security Engineer
Vienna, Virginia, United States
$105k-$115k/yr OnsiteFull Time
3+ YOE3–5 years ISSE experience, Top Secret/SCI with CI Polygraph, knowledge of NIST/ISO 27001/CIS Controls, cloud security, RMF, secure SDLC, incident response, risk assessments, and systems security engineering.
NIST, ISO 27001, CIS Controls, Agile, DevSecOps, Cloud Platform, RMF, Cross Domain Solutions
1mo
Save
Mark Applied
Hide
Information Systems Security Engineer (ISSE)
Herndon or Bowie
$135k-$216k/yr OnsiteFull Time
10+ YOEU.S. citizen able to obtain/maintain Public Trust. Advanced information systems security engineering expertise, vulnerability assessment and continuous monitoring experience, strong risk management and secure configuration skills; degree plus 10–16 years of related experience depending on education.
DevSecOps, CI/CD, Zero Trust
1d
Save
Mark Applied
Hide
Government Information Security Engineer
Fairfax or Folsom or Santa Clara or Phoenix
$105k-$207k/yr HybridFull Time
3+ YOEUS citizen with bachelor's in CS/InfoSec or related and 3+ years info security experience; 1+ year with CUI/ITAR/EAR; 3+ years scripting (PowerShell,.Net,Python); experience with identity management and cloud security.
PowerShell, .Net, Python, Microsoft Active Directory, Azure AD (Entra AD), Azure, AWS, MS Azure Government Cloud, Amazon Web Services GovCloud, Privilege Access Management (PAM), SCOM, BigFix, Azure Security Center, Agile Scrum, Kanban, SAFe
5d
Save
Mark Applied
Hide
Information Security Engineer Intern
McLean, Virginia, United States
OnsiteInternship
Currently pursuing a BS/MS in a STEM field, available full-time for a 10-week summer internship, returning to school after Summer 2027; demonstrated AI/LLM fluency; strong security interest and technical aptitude.
AI, LLMs
1mo
Save
Mark Applied
Hide
Information Systems Security Engineer
Warrenton or Tampa or Fairfax or Colorado Springs
$110k-$170k/yr HybridFull Time
6+ YOEBachelor's in CS/IT/Cybersecurity, 6+ years in cybersecurity or information assurance, strong RMF/NIST 800-53 knowledge, hands-on ACAS/Nessus/SCC/Splunk experience, relevant certs (CISSP/CASP+/CEH/Security+), active Top-Secret/SCI clearance and US citizenship.
ACAS, Nessus, SCC, Splunk, Kubernetes, RMF, NIST 800-53, FISMA, CMMC, DCSA, IAVM
1mo
Save
Mark Applied
Hide
Information Assurance Security Engineer
Springfield, Virginia, United States
$130k-$140k/yr OnsiteFull Time
10+ YOE10+ years in information security, active TS/SCI clearance, IAM Level II, RMF/ICD 503 knowledge, experience with ACAS/HBSS/Carbon Black/Tanium/RedSeal/EMET, AWS, UNIX/RHEL scripting, PowerShell, Active Directory, VMware, and a bachelor's degree or equivalent.
ACAS, HBSS, Carbon Black, Tanium, RedSeal, EMET, AWS, UNIX, RHEL, Microsoft PowerShell, VMware, Active Directory, IDS
5d
Save
Mark Applied
Hide
Information Systems Security Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
Must have experience with RMF/NIST security frameworks, system security documentation (SSPs, SARs, POA&Ms), security tools and cloud security; active Top Secret/SCI with polygraph required.
NIST SP 800-53, RMF, ICD 503, CNSS, DoD STIGs, ACAS, Nessus, Tenable, Splunk, Wireshark, HBSS, McAfee ePO, Firewalls, IDS/IPS, SIEMs, VPNs, PKI, Multi-Factor Authentication, SSPs, POA&Ms, SARs, Security Control Traceability Matrix (SCTM), Linux, Unix, Windows, VMware, Hyper-V, AWS, Azure, Google Cloud, TLS/SSL, IPsec, Nmap, Metasploit, Burp Suite, Kali Linux, Python, PowerShell, Bash, SDLC, JIRA, Confluence, ServiceNow
1mo
Save
Mark Applied
Hide
Information Systems Security Engineer
Arlington, Virginia, United States
OnsiteFull Time
9+ YOERequired: 9 years cybersecurity experience, Bachelor’s in CS/Software/IT, TS/SCI or SCI-eligible, hands-on security engineering with Linux/Windows, Kubernetes, cloud IAM, Terraform/Ansible, and scripting (Python/PowerShell/Bash).
Linux, Windows, Kubernetes, Terraform, Ansible, Python, PowerShell, Bash, OPA, Conftest, STIG, SRG, SAST, DAST, SCA, CI/CD, EDR, IDS/IPS, CSPM, KSPM, CNAPP, mTLS, OAuth2, OIDC, SAML, SCIM, RBAC, ABAC
2mo
Save
Mark Applied
Hide
Information Systems Security Engineer
Annapolis Junction, Maryland, United States
OnsiteFull Time
5+ YOEFive years of experience integrating information assurance into system design; degree preferred; TS/SCI CI Poly clearance required.
1mo
Save
Mark Applied
Hide
Information Systems Security Engineer
Arlington, Virginia, United States
OnsiteFull Time
9+ YOEDesign and harden secure cloud and on‑prem platforms; automate compliance and CI/CD checks; require TS/SCI eligibility, 9 years cybersecurity experience, bachelor’s in CS/SE/IT, and relevant security certifications.
Kubernetes, Terraform, Ansible, Python, Microsoft PowerShell, Bash, Open Policy Agent (OPA), Conftest, STIG, SRG, CI/CD, SAST, DAST, SCA, EDR, IDS/IPS, CSPM, KSPM, CNAPP, SOAR, AWS, Azure, GCP, Linux, Windows, RBAC, ABAC, OAuth2, OIDC, SAML, SCIM
3w
Save
Mark Applied
Hide
Mid Security Information Assurance Engineer
Denver or St. Louis or Sterling or Springfield
$63k-$130k/yr OnsiteFull Time
4+ YOETS/SCI clearance, Bachelor's in cybersecurity/computer science or equivalent experience, 4+ years security engineering, RMF and STIG experience, ACAS/Nessus, IAT Level II (Security+ CE), ability to work on-site.
STIG, ACAS, Nessus, Kubernetes, AWS, C2S, CI/CD
1d
Save
Mark Applied
Hide
Information System Security Engineer
McLean, Virginia, United States
$99k-$225k/yr OnsiteFull Time
8+ YOE8+ years in ISSO/ISSM/ISSE/SCA roles supporting classified programs, RMF experience, experience with SIPRNet/CWAN, active TS/SCI clearance, bachelor’s degree, and relevant security certifications.
EMASS, SNOW, Xacta, SPLUNK, Azure, AWS, SIPRNet, CWAN, CORA
1w
Save
Mark Applied
Hide
Information Systems Security Engineer
Washington, District of Columbia, United States
$160k-$170k/yr OnsiteFull Time
5+ YOEActive TS/SCI clearance, 5+ years IA/cybersecurity engineering or A&A experience supporting DoD/IC, bachelor\u0002s (or equivalent), DoD 8140 compliance, experience with RMF, NIST, ICD 503, and A&A documentation.
ICD 503, Risk Management Framework (RMF), NIST SP 800-53, NIST SP 800-37, NIST SP 800-39, NIST SP 800-30, CNSSI 1253, Assessment and Authorization (A&A)
Explore Jobs