16 principle developer jobs at 14 companies in Winchester, 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
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
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
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.
5d
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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
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.
2w
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Senior Data Engineer
Chantilly, Virginia, United States
$90k-$187k/yr OnsiteFull Time
SOSi
SOSi: Provides technology and mission solutions for national security.
5+ YOEActive TS/SCI with poly required; 5+ years data engineering experience and STEM degree; experience with Apache Kafka, Apache Spark, Prefect, Docker, Kubernetes, Linux, ETL, and DevOps principles.
Apache Kafka, Apache Spark, Prefect, Docker, Kubernetes, Linux
2mo
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Systems Security Engineer (SSE)
Hudson or Phoenix or Huntsville or Cypress or West Lafayette or Andover or Chantilly or Gainesville
OnsiteFull Time
Mercury Systems
Mercury SystemsNASDAQ: MRCY: Provides secure processing solutions for aerospace and defense missions.
6+ YOEBS in STEM; 6+ years in systems engineering; SSE principles; DoD security; anti-tamper; DoD Secret clearance required.
Jama, Confluence, Jira, Bitbucket, Cameo Enterprise Architect, MBSE tools
3mo
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Network Engineer Tier 3
El Segundo or Colorado Springs or Springfield or Offutt AFB or Denver or Australia or Las Cruces or Sacramento or Cape Canaveral or Pearl Harbor or John C. Stennis Space Center or Chantilly or Annapolis Junction or Kirtland AFB or Vandenberg Space Force Base or Wright Patterson AFB or Piti or San Antonio or United Kingdom
$105k-$231k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
10+ YOETS/SCI with polygraph required, 10+ years' network engineering experience, Bachelor's degree or equivalent, advanced knowledge of TCP/IP/OSPF/BGP/MPLS, experience with Cisco/Juniper, network monitoring, security principles, and leadership skills.
TCP/IP, OSPF, BGP, MPLS, Cisco, Juniper, ITIL
4w
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Radar Systems Engineer (Contingent Upon Contract Award)
Washington or Chantilly
OnsiteFull Time
LeoLabs
LeoLabs: Provides orbital intelligence and space domain awareness services.
5+ YOEBachelor's in engineering/physics, 5+ years supporting radar or sensor systems, knowledge of radar principles/RF/signal processing, systems engineering experience, strong analytical and communication skills, U.S. citizenship and ability to obtain security clearance.
2mo
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Senior EO Imagery Analyst / Scientist
Sterling or Falls Church or Virginia or United States
$118k-$201k/yr OnsiteFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
6+ YOE6+ years EO imagery analysis experience, 3+ years exploiting the electromagnetic spectrum, TS/SCI clearance obtainable, familiarity with imagery quality metrics, sensor metadata, remote sensing principles, and ML/CV techniques desired.
5d
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Mid Level Cost Analyst
McLean or Chantilly
$136k-$203k/yr OnsiteFull Time
KBR
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
8+ YOETS/SCI with Poly required; 8+ years experience with a bachelor’s in engineering/related field; apply cost-estimating principles, develop models, perform Monte Carlo and statistical analyses, and present results to leadership.
Microsoft Office Suite, Microsoft Excel, @Risk, Crystal Ball, SAS, SPSS
2w
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Project Manager, Senior
Herndon, Virginia, United States
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
6+ YOE6+ years leading software development or product teams; knowledge of agile and project management principles; ability to map technical requirements to business needs and brief stakeholders; TS/SCI clearance with polygraph; Bachelor's degree.
1d
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Mid Level Cost Analyst
Chantilly, Virginia, United States
$136k-$203k/yr OnsiteFull Time
KBR
KBRNYSE: KBR: Provides engineering, technology, and professional services for global markets.
8+ YOEApply cost estimation principles and methods for complex government and space systems; develop models, perform statistical analysis and Monte Carlo simulation; TS/SCI with poly required; 8+ years experience and a bachelor’s in related field.
Microsoft Office Suite, Microsoft Excel, @Risk, Crystal Ball, SAS, SPSS
4d
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Family Services Specialist I
Front Royal, Virginia, United States
$55k/yr OnsiteFull Time
Virginia Department of Social Services
Virginia Department of Social Services: Provides social services and public assistance to Virginia residents.
2+ YOEBachelor's degree in human services or bachelor's with 2 years related experience; knowledge of social work principles; ability to interview, assess, develop and implement service plans; operate a vehicle and personal computer; provide after-hours on-call coverage.

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