Python Data Engineer — Scale Data Pipelines in Finance

Arche Consulting Sp. z o.o.; Warszawa; On-site; PLN 120,000 - 190,000; Full time

Job summary

Arche Consulting Sp. z o.o. is partnering with a fast-growing financial services client launching in Poland. The Warsaw office will serve as a regional hub to shape its data-driven operations.

The role focuses on building robust data pipelines, maintaining datasets, and delivering scalable analytics tools. You will write production-grade Python and collaborate across teams to turn data into actionable insights for the business.

Qualifications

• Experience in data engineering or related field.
• Strong analytical and problem-solving abilities.
• Advanced Python programming and data processing with Pandas.
• Knowledge of NumPy, Numba, or SciPy.

Responsibilities

• Develop and maintain high-quality datasets used by teams.
• Design and build frameworks for fast, reliable data delivery.
• Develop tools for data validation, error detection, and visualization.
• Write production-grade Python code focused on performance and reliability.
• Contribute to data management, architecture, and infrastructure decisions.
• Support quantitative team analysis and reporting.
• Collaborate with stakeholders across business areas for data-driven solutions.
• Ensure solutions are scalable and maintainable within the tech stack.
• Contribute to both ad-hoc requests and longer-term projects.

Skills

Data engineering

Python

Pandas

Analytical thinking

Team collaboration

Tools

NumPy

Numba

SciPy

Job description

Arche Consulting Sp. z o.o. is partnering with a fast-growing financial services client launching in Poland. The Warsaw office will serve as a regional hub to shape its data-driven operations.

The role focuses on building robust data pipelines, maintaining datasets, and delivering scalable analytics tools. You will write production-grade Python and collaborate across teams to turn data into actionable insights for the business.