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68 principle developer jobs at 55 companies in Washington, DC

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
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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
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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.
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1w
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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
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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
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1w
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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
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2w
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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.
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3w
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Java Software Engineer Level 4
Aurora or Morrisville or Linthicum Heights
$142k-$213k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Designs and manufactures advanced aerospace and defense systems.
8+ YOETop Secret/SCI required; Bachelor’s degree (or equivalent experience); 5+ years Java development; experience with RESTful APIs, microservices, Git, and Agile; strong OO design and SOLID principles.
RESTful APIs, microservices, Java, Git, GitHub, GitLab, Bitbucket, Linux, CI/CD, Docker
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4d
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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
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1w
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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
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2w
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Applications Engineer IV
Linthicum, Maryland, United States
OnsiteFull Time
Quevera
Quevera: Software engineering and cloud solutions for government and defense.
Active TS/SCI with Polygraph required; experience with Kubernetes, Docker, Harbor, Apache Spark, Apache Airflow, Linux, and AWS; knowledge of cybersecurity and networking principles.
Kubernetes, Apache Spark, Apache Airflow, Docker, Harbor, Linux, Amazon Web Services (AWS)
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2w
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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
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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
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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
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1mo
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Traffic Design Engineer
Hunt Valley, Maryland, United States
$39-$47/hr OnsiteFull Time
Johnson, Mirmiran & Thompson
Johnson, Mirmiran & Thompson: Provides multidisciplinary engineering, architecture, and technology infrastructure services.
Perform traffic engineering design and analysis using engineering principles, prepare plans and computations, analyze survey data, develop cost estimates, and coordinate with project teams.
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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.
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2w
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Electrical Engineer II- 536431-A
Arlington, Virginia, United States
OnsiteFull Time
Delaware Nation Industries
Delaware Nation Industries: Provides IT and professional services to government agencies.
11+ YOEBachelor's degree and 11 years' related experience, U.S. citizenship required; advanced electrical engineering expertise, ability to develop/interpret designs, perform calculations, and apply project management principles.
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5d
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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.
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3d
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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
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2d
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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.
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