Full Stack Software Developer (Python/FastAPI/ReactJS)

Full Stack Software Developer Inabia is seeking a Full Stack Software Developer with deep expertise in Python/FastAPI and ReactJS to design, build, and maintain mission-critical applications supporting a federal program. This is a stable, long-term 2-year hybrid contract role based in Washington, DC. An active U.S. security clearance is required at the time of application — no interim or prospective clearance candidates will be considered. Responsibilities Design, develop, and maintain full-stack applications using Python/FastAPI on the backend and ReactJS on the frontend Build and maintain RESTful APIs with proper validation, error handling, versioning, and documentation Manage PostgreSQL data models, schema design, and database migrations Containerize applications using Docker and support deployment to AWS Work within AWS infrastructure (EC2, S3, RDS, IAM, CloudWatch, VPC) to deploy, monitor, and troubleshoot cloud-hosted applications Participate in Agile/Scrum ceremonies including sprint planning, daily stand-ups, code reviews, and retrospectives Write automated tests and maintain strong test coverage across backend and frontend codebases Collaborate with cross-functional program teams to translate requirements into secure, scalable software solutions Key Qualifications U.S. Citizenship required Active security clearance required at time of application (no interim or eligibility-only candidates) Strong hands-on experience with Python and FastAPI Demonstrated experience with ReactJS Strong knowledge of PostgreSQL including schema design and migrations Experience with Docker and containerized application development Proven experience working with AWS services (EC2, S3, RDS, IAM, CloudWatch, VPC) Experience designing and developing RESTful APIs Agile/Scrum development experience Preferred Qualifications Experience with Kubernetes Familiarity with AWS Lambda, ECS, or EKS CI/CD pipeline experience using Jenkins or GitHub Actions Infrastructure-as-Code experience with Terraform Knowledge of OAuth2 and JWT authentication patterns Experience with automated testing frameworks such as PyTest or Jest Prior experience supporting Federal Government projects Knowledge of NIST/FISMA security standards and compliance requirements