53 principle developer jobs at 42 companies in Westminster, MD

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
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
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
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
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
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
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)
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
2w
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Software Engineer - Code Assessment
Aberdeen, Maryland, United States
$105k-$120k/yr OnsiteFull Time
Techximius: Provides specialized IT and engineering services for defense missions.
4+ YOE4+ years experience reading and analyzing code for vulnerabilities, proficiency in one or more languages (C/C++, Java, Ada, Rust, Go), knowledge of security principles, IV&V, and ability to prepare professional reports.
C/C++, Java, Ada, Rust, Go, Python, Perl, Independent Verification and Validation (IV&V)
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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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.
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.
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
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.
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
2mo
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Continuous Improvement (CI) Engineer
Columbia, Pennsylvania, United States
OnsiteFull Time
ASC Engineered Solutions
ASC Engineered Solutions: Produces precision-engineered pipe joining systems and industrial valves.
2+ YOELead deployment of Lean principles, identify improvements, coach Kaizen events, and track KPIs in a manufacturing environment.
5S, Value Stream Mapping, Problem Solving, Daily Management, Standard Work, Kanban
2mo
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Security Engineer
Bellevue or Menlo Park or Washington or New York
$271k-$347k/yr OnsiteFull Time
Meta
MetaNASDAQ: META: Develops social networking platforms and virtual reality technologies.
15+ YOEB.S. in CS or related; 15+ yrs security risk management; 15+ yrs cross-company engineering; system design, threat modeling; engineered controls; security principles; threat knowledge; distributed systems; strong communication.
1mo
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Project Engineer
Rockville, Maryland, United States
$78k-$90k/yr OnsiteFull Time
DAVIS Construction
DAVIS Construction: Provides general contracting and construction management services.
Bachelor’s degree in Engineering, Construction Management, Architecture, or related field; knowledge of engineering/construction PM principles; safety standards; scheduling/software experience; LEED knowledge a plus; CPR/First Aid, OSHA 30, WELL, ILFI, LEED a plus.
Project Management Software, Cost Estimation Tools, Scheduling Software, Contract Management Systems, Submittal Tracking Tools
1mo
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Senior Application Engineer (hybrid)
New Freedom or San Antonio or York or Baltimore
$90k-$120k/yr HybridFull Time
Johnson Controls
Johnson ControlsNYSE: JCI: Provides integrated building technologies including HVAC, fire, and security systems.
3+ YOEBachelor's degree, 3+ years experience (HVAC or chiller technology preferred), knowledge of refrigeration principles, ability to support sales and design chiller systems, up to 15% travel.

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