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Senior Full-Stack Developer

SourceFly

Salary not specified
Aug 29, 2025
Chantilly, VA, US
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SourceFly is seeking a Senior Full-Stack Developer to lead a team in building, enhancing, and maintaining a mission-critical capability for a government client.

Requirements

  • Hands-on experience with Full-stack development (back-end and front-end concepts)
  • Database expertise (PostgreSQL or MySQL): indexing & paging strategies, table design & optimization, database security best practices
  • Experience with SQLAlchemy or similar ORM
  • Experience in API layer development using FastAPI or Flask (Python)
  • Experience in Data validation with Pydantic
  • Experience with front-end development technologies such as Vue, React, or Angular
  • Familiarity with Security and design, including OAuth2

Responsibilities

  • leading a small, dynamic team of developers building, enhancing, and maintaining a mission critical capability with a strong user base.
  • work closely with the Program Manager and the Chief Engineer to define & prioritize feature requests that align with the customer’s mission
  • work with the technical team to implement, test, and deploy the capability.
  • Hands-on experience with Full-stack development (back-end and front-end concepts)
  • Database expertise (PostgreSQL or MySQL): indexing & paging strategies, table design & optimization, database security best practices
  • Experience with SQLAlchemy or similar ORM
  • Experience in API layer development using FastAPI or Flask (Python)

Other

  • US Citizen with an active Top Secret/SCI clearance with willingness to obtain and maintain Full Scope with Polygraph
  • Desire to work in a leadership role while remaining technical and hands-on
  • Excellent communication skills, oral and written
  • Ability to work individually and in small fast-paced team environments
  • Passion and drive to constantly need to improve your skill set