Python Developer -- Onsite -- Only W2 Profiles

Dice is the leading career destination for tech experts at every stage of their careers. Our client, Trebecon LLC, is seeking the following. Apply via Dice today!Role : Senior Python DeveloperLocation: McLean, VA (Onsite)Interview Mode: In-Person Interview RequiredRequired Qualifications5+ years of hands-on software development experience using Python Strong experience with: Python programming Pandas and NumPy libraries Git/version control Unit testing frameworks (PyTest preferred) SQL and relational databases Experience with data platforms such as: Snowflake Databricks SQL Server 1–2 years of experience with containerization/orchestration tools: Docker Kubernetes Podman Strong analytical, troubleshooting, and problem-solving skills Experience working in Agile development environments Excellent communication and collaboration skills Candidate must be local to Virginia and available for onsite interviews Key ResponsibilitiesRefactor and modernize ETL application components for improved scalability, maintainability, and performance Develop and enhance data processing and cohorting engines Perform end-to-end testing and parallel validation to ensure data integrity and accuracy Build data profiling and quality control reporting solutions Establish monitoring and operational metrics for implemented solutions Diagnose defects, reduce technical debt, and drive continuous improvement initiatives Write clean, maintainable, and testable code with strong automated test coverage Collaborate with teams across data, APIs, services, and infrastructure layers Support infrastructure upgrades and platform migrations Participate in code reviews, design discussions, and technical documentation Document technical findings, solutions, and implementation outcomes