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Sr. Python Developer | Onsite | W2 Profiles

Jobs via Dice
Mc Lean, VA Full Time
POSTED ON 5/28/2026
AVAILABLE BEFORE 6/26/2026
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!

Job Title: Senior Python Developer

Location: Mclean, VA (Onsite) – F2F Interview

Job Description:

Must Have Qualifications:

  • 5 years’ experience of software development experience using Python.
  • Must have hands on experience with Python, Git, unit testing and data bases technologies including snowflake, Databricks, or SQL server. 1 – 2 years of experience working with containerization tools (e.g. Docker, Kubernetes)

Responsibilities:

  • Refactor and modernize existing components of an ETL application to improve maintainability, performance, and scalability.
  • Perform end to end testing to verify accuracy of all layers and perform parallel testing to ensure data integrity of the new system.
  • Establish metrics and monitoring systems to evaluate the effectiveness of the implemented solutions.
  • Diagnose and resolve defects, eliminate technical debt in new solution, and drive continuous improvements to ensure alignment with software engineering best practices.
  • Write clean, robust, high-quality code following best practices, supported by automated unit and integration tests with strong coverage.
  • Coordinate with team members across different layers of the stack (data, services, APIs, and infrastructure) to deliver end-to-end solutions.
  • Assist with infrastructure upgrades, platform migrations, and adoption of new technologies to improve reliability, security, and operational efficiency.
  • Contribute to design discussions, code reviews, and documentation; demonstrate a commitment to collaborative problem-solving, thoughtful design, and high-quality deliverables.
  • Document findings and outcomes to build a knowledge base for future reference.

Qualifications:

  • Hands-on software development experience using Python programming
  • Candidate should be skilled in pandas and numpy Python libraries.
  • 2–3 years of experience using Git for source control in a team-based development environment.
  • 2–3 years of experience with SQL and relational database development.
  • 1–2 years of experience with containerization and orchestration technologies (e.g., Docker, Podman, Kubernetes).
  • 2–3 years of experience with unit testing frameworks (e.g., Pytest) and implementing automated test coverage.
  • Good oral, written communication skills and team collaboration skills.
  • Strong critical thinking, problem-solving skills, and familiarity with Agile development processes

Salary.com Estimation for Sr. Python Developer | Onsite | W2 Profiles in Mc Lean, VA
$83,596 to $99,052
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