Back to SearchSenior Python Developer (Fintech)
Remote in Poland
Python.Data& 8 others
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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