Senior Python Developer (Fintech)

We are hiring a Senior Python Developer (Fintech) to join us, with a strong technical background in application development and deployment pipelines, focusing on large-scale systems and trading databases. Working hours run until 8–9 PM. Responsibilities Develop data processing workflows using Python and manage virtual environments Write and optimize SQL queries for trading databases Collaborate via Git, including branching, creating Pull Requests, and conducting code reviews Participate in CI/CD pipeline operations, including building, testing, deploying, and rolling back changes when needed Analyze large, complex datasets such as loan-level tapes and model outputs Reconcile results from different sources and investigate underlying discrepancies Explain and document differences found during data reconciliation processes Requirements 5+ years of experience as a Python Developer Proficiency in Python, Pandas, and NumPy Flexibility to use conda, poetry, and uv for packaging and virtual environment management Skills in writing and optimizing SQL queries Background in analyzing large, messy datasets such as loan-level tapes and model outputs Capability to reconcile two results and explain the difference Experience with Git, including branching, Pull Requests, and code reviews Proficiency in English at a B2+ level Nice to have Knowledge of SQL Server/T-SQL Familiarity with Linux command line, SSH, and mixed Windows/Linux file shares (SMB/NFS) Understanding of CI/CD pipeline functions, including building, testing, deploying, and rolling back changes Background in fixed income basics: price/yield, duration and convexity, spreads (OAS, Z spread), coupon vs yield, and accrued interest