2369 Professional Level Software Developer jobs in Centreville,VA

Backend Developer, Data Platform

Vantor

Reston, VA 20190

To be eligible for this position, you must be a U.S. Citizen.
This position requires an active U.S. Government Security Clearance at the TS/SCI level with CI Polygraph.
_Export Control/ITAR:_ Certain roles may be subject to U.S. export control laws, requiring U.S. person status as defined by 8 U.S.C. 1324b(a)(3).
Current/active TS/SCI with a current CI polygraph or be willing and able to obtain a CI polygraph.
5+ years of professional software engineering experience, with strong backend development skills
Strong proficiency in Python
Experience building backend systems, APIs, or distributed services in production environments
PostgreSQL and Elasticsearch proficiency
Familiarity with AWS, especially S3, RDS, and other data centric services
Bachelor's degree in a related field, e.g. Computer Science, Systems Engineering or equivalent experience
Understanding of software engineering fundamentals including testing, version control, CI/CD, and system design

GovCIO LLC

Fairfax, VA 22031

Bachelor's degree in Computer Science, Engineering, or related field with 12+ years of experience with large integrated projects and 5+ years of professional experience in Java development, preferably in federal or defense contracting environments. (or commensurate experience).
Active Secret clearance with the ability to obtain and hold DEA suitability.
Strong knowledge of Java SE/EE, Spring Boot, and RESTful services.
Familiarity with cross-domain solution architectures, data labeling, and secure data transfer protocols.
Experience working in secure environments,
Understanding of FISMA, NIST, or RMF compliance.
Proficiency with build tools (Maven/Gradle).
Version control (Git).
CI/CD tools (Jenkins, GitLab CI).
Exposure to containerization technologies (Docker, Kubernetes).
Cloud platforms (AWS GovCloud, Azure Government).
Understanding of secure coding practices and experience with static/dynamic code analysis tools.

Lockheed Martin

Chantilly, VA 20153

L3Harris Technologies Careers

Chantilly, VA 20152

Milton Hershey School

Alexandria, VA 22350

ManTech

Chantilly, VA 20151

TEKsystems

Chantilly, VA 20152

Experience in physically demanding environments (construction, trades, military, or similar)
Comfortable working on ladders and lifts for extended shifts
Strong work ethic, mechanical aptitude, and willingness to learn
Reliable attendance and positive attitude
2+ years leading fiber and porting work in data center environments
Strong experience with testing, troubleshooting, documentation, and technician oversight
Professional communication and reporting skills
Pull and route fiber throughout the data center
Assemble, stack, and drill equipment racks
Scan, label, and port equipment
Support general installation tasks under the direction of senior technicians
Schedule: Monday–Saturday, occasional Sunday
Hours: 7:00 AM – 7:00 PM
Must be open to night/second shift and working 6–7 days per week
Contract length: 4–6 months