925 Software Developer Backend Developer jobs in Fairfax,VA

Oak Grove Technologies Llc

Fort Belvoir, VA 22060

U.S. Citizenship and an active Top Secret clearance with SCI eligibility are required
Bachelor's degree in a relevant field
10+ years combined education/experience in software development, systems engineering, offensive security or cyber operations
3+ years of experience with C/C++/C# software development, including expertise in red team / offensive cyber operations capability development for Windows
Development and use of Command-and-Control (C2) frameworks/capabilities, especially Cobalt Strike
Ability to pass the Advanced Cyber Red Team Senior Developer Aptitude Test (SDAT) prior to onboarding
Willingness and ability to travel 15% (CONUS/OCONUS)

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

Quantico, VA 22134

Capital One

McLean, VA 22101

ManTech

Herndon, VA 20170

Fire Safety and Protection

Beltsville, MD 20705

Bachelor's degree in business, engineering, or a related field preferred
Minimum 3 years of experience in sales, preferably within the fire protection industry or related sectors (fire alarms, sprinklers, safety systems)
Proven track record of achieving sales targets and managing multiple projects simultaneously
Strong knowledge of Sprinkler Systems, building codes, and fire safety regulations
Excellent communication, negotiation, and presentation skills
Ability to work independently, as well as collaboratively within a team
Proficiency in CRM software and Microsoft Office Suite; design software a plus
NICET certification in fire protection, or equivalent