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128 principal security engineer jobs at 62 companies in Washington, DC

3d
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Principal Security Engineer
Reston, Virginia, United States
$200k-$269k/yr HybridFull Time
Fannie Mae
Fannie MaeOTCQB: FNMA: Providing liquidity and stability to the U.S. housing market.
8+ YOEBachelor's degree and 8+ years in cybersecurity or related engineering. Requires multi-cloud security expertise across AWS, Google Cloud, and Microsoft Azure, infrastructure security, automation, application security, AI security, and cross-functional leadership.
AWS, Google Cloud, Microsoft Azure, Terraform, CloudFormation, Bicep, ARM templates, Python, Go, Java, JavaScript, TypeScript, C#, PowerShell, Bash, Ruby, SIEM, EDR, CSPM, CWPP, CIEM, DSPM, Kubernetes, NIST Cybersecurity Framework, NIST 800-53, CIS Benchmarks, ISO 27001, SOC 2, PCI DSS, OWASP, MITRE ATT&CK, MITRE ATLAS
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1mo
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Principal Security Engineer
Basking Ridge or Alpharetta or Ashburn or Irving or Cary or Temple Terrace
$121k-$231k/yr HybridFull Time
Verizon
VerizonNYSE: VZ: Provides wireless, fiber-optic internet, and telecommunications services globally.
6+ YOE6+ years relevant experience, bachelor’s degree or equivalent experience, leadership experience, deep routing/switching and network security expertise, hands-on with Python/Ansible/Terraform, Splunk/SIEM, and network telemetry analysis.
Python, Ansible, Terraform, Splunk, Confluence, SIEM, API
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1mo
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Principal Cyber Security Engineer, Strategy and Architecture
Carlsbad or Reston or Marlborough or Tempe or San Jose or New York City
$230k-$363k/yr HybridFull Time
Viasat
ViasatNASDAQ: VSAT: Provider of global satellite-based connectivity and secure communication solutions.
10+ YOEBachelor's or Master's in a technical field, 10+ years in security/systems/network engineering, strong risk analysis and secure system design experience, hands-on with enterprise security tools, US citizenship, up to 20% travel.
firewalls, IDS/IPS, PKI, SIEM/SOAR, EDR/NDR, CSPM/CNAPP, zero-trust, NIST, ISO 27001, GDPR, CCPA
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2w
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Principal / Senior Principal Embedded Systems Security Engineer
Baltimore, Maryland, United States
$120k-$179k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
5+ YOEActive U.S. citizenship and DoD Secret clearance, 5+ years systems engineering experience with DoD platforms/sensors, experience with anti-tamper/reverse engineering/RMF, ability to obtain SAP access.
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3w
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Offensive Security Agent Engineer
New York City or Seattle or Washington or San Francisco or United States
$347k-$490k/yr RemoteFull Time
OpenAI
OpenAI: Develops artificial intelligence models and generative AI software services.
Staff/principal-level offensive security expertise, domain knowledge in cloud/Kubernetes/web/Linux/macOS, experience building production software and agent systems, strong judgment and communication.
Kubernetes, Linux, macOS
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Principal Cyber Security Engineer
Chantilly, Virginia, United States
$142k-$236k/yr OnsiteFull Time
ManTech
ManTech: Provides technology solutions for defense and intelligence agencies.
7+ YOEBachelor's degree or equivalent experience, 7+ years of cybersecurity experience, enterprise security deployment expertise, Windows and Linux knowledge, networking skills, and active IAT Level II certification.
Windows, Linux, TCP/IP, 802.1X, Cisco Identity Services Engine (ISE), Shell, Perl, XML, Nmap, Nessus, tcpdump
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3w
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Principal Engineer -Cyber Security
Washington, District of Columbia, United States
$50k-$175k/yr OnsiteFull Time
A3 Technology
A3 Technology: Provides engineering and technical services for federal aviation programs.
20+ YOEMaster's preferred in CS/InfoSec/Systems Eng; 20+ years IT experience; 10+ years FAA NAS security experience; CISSP required; knowledge of NIST SP 800-53 and FAA Order 1370.121; US citizenship/green card and government clearance eligibility.
FAA Order 1370.121, NIST SP 800-53, Zero Trust Architecture, NESG, RMAG, National Airspace System (NAS)
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2w
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Principal Security Engineer (Palo Alto Strata Cloud)
Vienna or Pensacola or Winchester
$132k-$206k/yr HybridFull Time
Navy Federal Credit Union
Navy Federal Credit Union: Offers banking and financial services to the military community.
10+ YOE10+ years cybersecurity engineering experience; 5+ years with Palo Alto Strata Cloud Manager/Panorama; 3+ years tuning network sensors; Bachelor's in CS/IT or equivalent; experience with cloud, proxies, IDS/IPS, and network security.
Palo Alto Strata Cloud Manager, Panorama, Prisma Access, Splunk, PowerShell, Python, Azure, IDS, IPS, CASB, SASE, SD-WAN, PKI, SSL, SSH, HTTPS
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1mo
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Principal System Safety Engineer
Dulles, Virginia, United States
$118k-$225k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
8+ YOESTEM degree with 8+ years' relevant experience, MIL-STD-882E system safety expertise, active transferable U.S. Secret security clearance, U.S. citizenship, program management and stakeholder collaboration skills.
MIL-STD-882E, DO-178, MIL-STD-1472, EVMS, Agile, Integrated Master Schedule (IMS)
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3mo
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Principal Software Engineer
Washington, District of Columbia, United States
$152k-$229k/yr RemoteFull Time
Recorded Future
Recorded Future: Provides AI-driven threat intelligence to protect organizations from cyberattacks.
5+ YOE5+ years in data/backend/platform engineering; strong Python; cloud infra; Kafka/RabbitMQ; SQL/NoSQL; CI/CD; IaC; data pipelines; security data domain interest.
Python, Go, Rust, Cloud infrastructure, Kafka, RabbitMQ, PostgreSQL, MongoDB, Elasticsearch, Delta Lake, AWS Neptune, Neo4j, Flask, Django, FastAPI, CI/CD, GitHub Actions, Terraform, Infrastructure as Code
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3w
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Principal Information Security Engineer
Fort Meade, Maryland, United States
$117k-$292k/yr OnsiteFull Time
Clarity Innovations
Clarity Innovations: Provides software and data engineering for national security missions.
5+ YOEActive U.S. Top Secret clearance with SCI/SAP eligibility, 5+ years relevant experience, RMF/ATO expertise, experience with cloud, CI/CD, IaC and DevSecOps, and vulnerability assessment tools.
Kubernetes, CI/CD, IaC, Azure, AWS, ACAS, Nessus, SonarQube, eMASS, Xacta, SNOW, LATTE ART
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3d
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Principal Information System Security Engineer (ISSE)
Chantilly, Virginia, United States
$160k-$185k/yr OnsiteFull Time
Redhorse
Redhorse: Delivering data insights and technology solutions to government agencies.
10+ YOEActive TS/SCI with full-scope polygraph, bachelor's degree with 12+ years or master's degree with 10+ years, and extensive information assurance, security engineering, accreditation, and complex risk assessment experience.
DITSCAP, DIACAP, NIACAP, NIST SP 800-37, DCID 6/3, AWS, Azure, Google Cloud, DataBricks, GitLab, Spark, Jira, DevSecOps
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3mo
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Principal Cybersecurity Engineer - US Federal
Reston, Virginia, United States
$185k-$277k/yr RemoteFull Time
Workday
WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.
AWS security engineering, Kubernetes/Docker, Python, Terraform/IaC, CI/CD, security tooling, and AI-augmented workflows.
AWS, Kubernetes, Docker, Terraform, CloudFormation, CDK, Python, GitHub Actions, GitLab CI, Jenkins, SOAR, SIEM
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Principal Systems Engineer
Annapolis Junction, Maryland, United States
$190k-$225k/yr OnsiteFull Time
Columbia Technology Partners
Columbia Technology Partners: Provides IT, cybersecurity, and management consulting to government agencies.
U.S. citizenship required; active security clearance with polygraph; DOD 8570 certification; background investigation and random drug testing; experience in systems/network engineering and security.
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2d
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Principal Test Engineer
Germantown, Maryland, United States
$120k-$162k/yr OnsiteFull Time
Leonardo DRS
Leonardo DRSNASDAQ: DRS: Designs and integrates advanced defense technologies for military customers.
8+ YOEBachelor's degree in engineering or a related technical field, 8+ years of experience, expertise across multiple engineering disciplines, U.S. citizenship, and active or obtainable Department of Defense security clearance.
test hardware, test software
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1mo
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Principal Test Engineer
Germantown, Maryland, United States
$120k-$162k/yr OnsiteFull Time
Leonardo DRS
Leonardo DRSNASDAQ: DRS: Manufactures advanced electronic systems for defense and military applications.
8+ YOEBachelor's in engineering plus minimum 8 years' experience, mastery of multiple engineering disciplines, ability to obtain/hold DOD security clearance, strong technical leadership and test development skills.
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1mo
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Principal/Senior Principal Mechanical Engineer
Hawthorne or El Segundo or Los Angeles or Washington or San Francisco or San Diego or Seattle or London
$160k-$260k/yr OnsiteFull Time
CHAOS Industries
CHAOS Industries: Develops advanced radar and sensing systems for modern defense.
10+ YOEBachelor's in Mechanical Engineering, 10+ years mechanical design and system integration experience in aerospace/defense, launcher design experience, CAD and FEA proficiency, electro-mechanical integration, MIL-STD familiarity, ability to obtain U.S. security clearance.
SolidWorks, NASTRAN, ABAQUS, ANSYS, COMSOL
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1mo
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Principal Software Developer Engineer
Reston or Austin or Seattle
$115k-$235k/yr OnsiteFull Time
Oracle
OracleNYSE: ORCL: Provides cloud infrastructure and enterprise software for global businesses.
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
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1mo
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Principal Information Security Engineer (supporting Naval Research Lab)
Welcome, Maryland, United States
$120k-$190k/yr OnsiteFull Time
ASRC Federal
ASRC Federal: Provides engineering and IT services to federal government agencies.
8+ YOEBachelor's in a relevant technical field and 8 years' related experience; ability to obtain TS/SCI; expert security engineering skills; experience with RHEL, Windows, VMware, AD, vulnerability scanning, RMF/DoD STIG, incident response; CISSP/CISM or DoD 8140/8570.1 desired.
Red Hat Enterprise Linux, Windows 11, Windows Server 2012, Active Directory Group Policy, VMware vSphere, ESS, ACAS, Nessus, FireEye, Suricata, Palo Alto, LogRhythm, ArcSight, NetWitness, Splunk Enterprise Security, AlienVault
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2mo
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383 - Principal Software Engineer
Annapolis Junction, Maryland, United States
$216k-$241k/yr OnsiteFull Time
ARSIEM
ARSIEM: Provides cybersecurity and software engineering to government agencies.
11+ YOEBachelor's degree with 11+ years of relevant experience; strong software development and scripting skills; experience in security/Android/automation preferred.
Java, Python, JavaScript, Shell, Android, Selenium
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