59 principle developer jobs at 49 companies in Manassas, VA

2mo
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Principle Cyber Test Engineer (Onsite)
Sterling, Virginia, United States
OnsiteFull Time
Nightwing
Nightwing: Provides advanced cyber and intelligence solutions for national security.
5+ YOETS/SCI with CI Poly clearance; 5 years test engineering; 5 years offensive cyber operations; 3 years Python/Bash scripting; 3 years Linux/Unix; networking knowledge; strong communication and collaboration.
Python, Bash, Linux, Docker, TCP/IP, DNS, DHCP, HTTP
1mo
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Cost Engineer, Principle
Tysons, Virginia, United States
OnsiteFull Time
M.C. Dean
M.C. Dean: Design-build and systems integration for complex, mission-critical infrastructure.
5+ YOEFive+ years with a Master’s degree; multiple advanced degrees/experience combinations; proficient in MS Office and AutoCAD; experience with estimating, project management, and scheduling software.
MS Office, AutoCAD, Estimating Software, Project Management Software, Scheduling Software
3mo
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MDA Principle Wargaming Engineer/Analyst
Fort Belvoir or Colorado Springs
$145k-$165k/yr OnsiteFull Time
Gov Solutions Group
Gov Solutions Group: Provides IT consulting and technical solutions for government clients.
12+ YOEActive Secret clearance, 12+ years engineering/analysis experience (or 20 years with bachelor's), experience leading wargame design and post-game analysis, facilitation skills, military science knowledge, ability to travel internationally.
2w
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Principle Engineer, Data Analytic Methods (Onsite)
Dulles, Virginia, United States
$118k-$225k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
8+ YOESTEM degree and typically 8+ years experience; expertise in signal processing, stochastic/probabilistic methods, and AI/ML for radio/ISR; ability to obtain TS/SCI with polygraph; curriculum development or instructional experience preferred.
Python, C++, Java
2mo
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Azure DevOps Engineer III (Principle) (78176)
Sterling, Virginia, United States
OnsiteFull Time
Centurion Health
Centurion Health: Provides medical and behavioral health services in correctional facilities.
6+ YOESenior DevOps engineer with 6-10+ years of experience in CI/CD, IaC, and cloud platforms; leadership and collaboration across teams; Azure focus.
GitHub Enterprise Actions, Terraform, Ansible, Azure, Kubernetes, PowerShell, Bash, Python
2w
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Software Engineer II
Lone Tree or Sparks or Longmont or Hagerstown or Herndon or Englewood
$94k-$130k/yr HybridFull Time
Sierra Nevada Corporation
Sierra Nevada Corporation: Develops mission-critical aerospace and national security technology systems.
2+ YOEBachelor's in CS or related,2+ years software development experience,proficiency in C++,Java,Python,knowledge of engineering principles,ability to work in multidisciplinary teams.
C++, Java, Python, C, C#, HTML, Bash, RTOS, AI/ML
3w
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Senior Full Stack/UI Developer
Chantilly, Virginia, United States
$102k-$213k/yr OnsiteFull Time
SOSi
SOSi: Provides technology and mission solutions for national security.
3+ YOEActive in-scope TS/SCI with poly required (U.S. citizenship). 3+ years full-stack/UI experience, STEM degree, backend and UI development, familiarity with AI/ML and DevOps principles.
1w
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Junior Software Engineer Level 0 - Polygraph Required Annapolis Junction
Annapolis Junction, Maryland, United States
HybridFull Time
Anthem Engineering
Anthem Engineering: Developing software and system solutions for government intelligence missions.
Entry-level software engineer with experience in one or more languages (Java, JavaScript, TypeScript, Python), familiarity with Git, software development principles, and strong communication and problem-solving skills.
Java, JavaScript, TypeScript, Python, Git
2w
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Software Engineer
Columbia, Maryland, United States
$109k-$140k/yr HybridFull Time
Sealing Technologies
Sealing TechnologiesNYSE: PSN: Provides defensive cybersecurity hardware and edge computing solutions.
4+ YOEU.S. citizen with 4+ years experience or equivalent; bachelor's in CS/Engineering preferred; ability to obtain Secret clearance; experience with GitLab, unit/functional testing, security principles, and CI/CD.
Ansible, ESXi, Rocky, Oracle, GitLab CI, GitHub Actions, GitLab, GitHub, KubeVirt, Python, Splunk, Security Onion, JIRA, Kubernetes, Linux
3w
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Military Systems Cybersecurity Software Engineer
Laurel, Maryland, United States
$100k-$195k/yr OnsiteFull Time
Johns Hopkins University Applied Physics Laboratory
Johns Hopkins University Applied Physics Laboratory: Conducts research and engineering for national security and space.
3+ YOEBachelor's in CS or related, 3+ years software development experience in Python/Java/Golang/Rust/C/C++; knowledge of cybersecurity principles, network analysis, and ability to obtain security clearances.
Python, Java, Golang, Rust, C, C++, Wireshark, VMware vSphere, Splunk, ELK Stack
2mo
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Software Engineer Level 2
Fort Meade, Maryland, United States
$200k-$210k/yr OnsiteFull Time
Markon
Markon: Delivers management and technical consulting services to federal agencies.
8+ YOEActive TS/SCI with Polygraph; 8+ years of software engineering; strong UI/UX and front-end development; proficient in modern front-end tech (JavaScript, HTML, CSS, React, Angular); experience with data-intensive or real-time systems; understands SDLC and usability principles; able to work independently or in a team.
JavaScript, HTML, CSS, React, Angular
1mo
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Principal DevOps / Software Engineer
Laurel, Maryland, United States
$200k-$280k/yr OnsiteFull Time
GliaCell Technologies
GliaCell Technologies: Software and systems engineering for the intelligence community.
12+ YOEActive TS/SCI with polygraph clearance required; US citizenship; 12 years experience with BS, or 4 additional years in place of a BS; strong Java/Python; SRE principles; Docker/Kubernetes; Git; Linux; able to document work.
Java, Python, Docker, Kubernetes, Git, Gitlab, Linux
1mo
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Junior Engineer
Indian Head, Maryland, United States
$100k-$120k/yr OnsiteFull Time
Altus Technology Solutions
Altus Technology Solutions: Providing technical engineering and IT services to government agencies.
1+ YOEBachelor's in engineering, active DoD SECRET clearance, minimum 1 year engineering experience, knowledge of engineering principles, strong analytical and communication skills.
1w
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23354 - Engineer Senior Land Use
Fairfax, Virginia, United States
$110k-$178k/yr OnsiteFull Time
Virginia Department of Transportation
Virginia Department of Transportation: Operates and maintains the state highway network in Virginia.
Apply advanced transportation engineering principles to review complex land development plans, traffic studies, and design waivers; communicate with stakeholders; hold a PE and a degree in civil engineering.
1w
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Field Engineer
College Park or Arlington or Herndon
$70k-$82k/yr FieldFull Time
The Whiting-Turner Contracting Company
The Whiting-Turner Contracting Company: A construction contracting firm providing project management and site coordination services.
Bachelor's in engineering/engineering technology or construction management, knowledge of engineering principles, ability to read drawings/specs, Microsoft Office proficiency, effective verbal and written communication.
Microsoft Office Suite, Microsoft Word, Microsoft Excel, Microsoft Project, Primavera
10h
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Staff Radar Systems Development Engineer
El Segundo or Hawthorne or Los Angeles or Washington or San Francisco or Seattle or London
$110k-$240k/yr OnsiteFull Time
CHAOS Industries
CHAOS Industries: Develops advanced radar and sensing systems for modern defense.
10+ YOEBachelor's in STEM or equivalent,10+ years radar systems experience,expertise in radar principles,signal processing,DSP,RF systems,algorithm development,data analysis;proficiency with Python/MATLAB;ability to lead tests and mentor engineers.
C++, Python, MATLAB, FPGAs, DSPs
6d
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Electrical Engineer
Washington, District of Columbia, United States
$122k-$158k/yr OnsiteFull Time
Bureau of Engraving and Printing
Bureau of Engraving and Printing: Produces United States currency and other security documents.
1+ YOEBachelor's in engineering or equivalent and 1+ year specialized electrical engineering experience at GS-12 level applying principles to design, modify, install, or operate complex electrical systems.
2mo
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Cybersecurity Engineer
Atlanta or Washington or Silver Spring
$91k-$169k/yr HybridFull Time
Warner Bros. Discovery
Warner Bros. DiscoveryNasdaq: WBD: Produces and distributes multimedia entertainment content and news worldwide.
5+ YOE5+ years in security engineering and building enterprise security tools; hands-on with SIEM/SOAR, EDR, cloud security, automation; strong scripting (Python); security principles and regulatory awareness.
SIEM, SOAR, EDR, vulnerability management, cloud security, Ansible, Terraform, Groovy, Python
1w
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Data Engineer
Springfield or Fairfax
$110k-$165k/yr HybridFull Time
ECS
ECSNYSE: ASGN: Provides advanced technology and engineering services to government agencies.
2+ YOEUS citizen able to obtain TS/SCI, Bachelor’s in a related field, 2+ years data engineering experience, advanced proficiency with Python,Pyspark and/or SQL, data parsing, ETL, and database principles.
Python, Pyspark, SQL, Databricks, Amazon Web Services, Microsoft Azure
1mo
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Space Protection Operations Engineer
Chantilly, Virginia, United States
OnsiteFull Time
SAIC
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
4+ YOEActive Top Secret/SCI with Poly; Bachelor's +9 yrs or Master's +7 yrs or PhD +4 yrs; experience in space mission operations, transitioning software into 24/7 operations, and knowledge of agile development principles.

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