Location: Herndon/Chantilly, VA Clearance Required: TS/SCI with Full Scope Polygraph (FSP) Position Type: Full-Time, On-Site Salary Range: $190,000 – $210,000 We are seeking an experienced Python Developer to contribute to the development of advanced data processing applications in support of a mission-critical federal program. The ideal candidate will be responsible for designing and implementing scalable Python-based services, developing APIs, and integrating with existing systems and open-source tools. The role requires experience with CI/CD automation, containerized deployments, and Agile software development practices, with a strong focus on performance, maintainability, and cloud-readiness. Primary Responsibilities: Collaborate with Chief Engineers and Technical Leads to translate functional requirements into technical user stories. Design, develop, and implement scalable Python-based components and services to support data-intensive applications. Develop and maintain web APIs using frameworks such as FastAPI to interface with cloud-native applications and databases. Implement automated testing strategies using PyTest and mocking tools to ensure robust CI/CD pipelines. Integrate Python applications into Docker containers and deploy to AWS environments as part of a distributed architecture. Utilize parallel data processing libraries such as PySpark, Pandas, and NumPy to enable efficient large-scale data transformations. Participate in Agile development cycles, including sprint planning, reviews, and backlog grooming. Guide technical design and support architecture decisions, ensuring alignment with best practices. Interface with stakeholders and mission partners to clarify requirements and ensure technical alignment. Requirements Minimum Qualifications: 3–5 years of professional experience with: Python data processing using libraries such as PySpark, Pandas, and NumPy API development with frameworks such as FastAPI Unit testing frameworks (e.g., PyTest and mocking libraries) Demonstrated experience developing containerized Python applications using Docker Familiarity with cloud deployment processes, preferably in AWS environments Proven track record of working in Agile teams and delivering iterative software capabilities Ability to work full-time on-site in Herndon/Chantilly, VA Active TS/SCI clearance with Full Scope Polygraph (FSP) is required at the time of application Preferred Qualifications: Experience with Python ORM tools such as SQLAlchemy Experience deploying containerized Python code in cloud environments (e.g., AWS) Familiarity with integrating NLP frameworks and toolkits into operational systems Experience operationalizing AI/ML models using Python libraries and frameworks Eligibility: Must be legally authorized to work in the United States without employer sponsorship, now or in the future Active TS/SCI with Full Scope Polygraph (FSP) clearance is required for this role Benefits Salary: Salary for this position is determined based on factors such as location, qualifications, experience, and contract-specific budget considerations. Proposed Salary Range: $190,000 – $210,000 Benefits: Our client offers a comprehensive and competitive benefits package, including: 100% Company-Paid Health Insurance: Full coverage for medical, dental, and vision insurance for employees and their dependents (United Healthcare and Guardian) Protection Plans: Employer-paid life, short-term disability, and long-term disability insurance 401(k) Retirement Contribution: 15% of base salary contributed by the company, fully vested from day one Paid Time Off: 200 hours of PTO annually (accrued), in addition to 11 federal holidays Bonuses: Recruitment and business development bonus opportunities based on performance and company growth