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Salary
$50k – $87k per year (Estimated)
Location
In office (Warsaw)
Seniority
Middle · 3+ years exp
Employment
Full-Time
Overview
Company
Impact
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Sii

Sii is a Polish company in the information technology and engineering services sector. It provides software development, testing, business process outsourcing, and engineering solutions for clients in industries such as finance, telecommunications, automotive, and manufacturing.

We are looking for a Python Developer to join our international team developing a strategic platform that powers vehicle pricing and recommendation processes across the organization. The solution collects and processes large volumes of internal and external data, transforms it into a unified data model, and delivers pricing insights through modern APIs. As a Python Developer, you will play a key role in building scalable data pipelines, backend services, and integrations while collaborating closely with product owners, architects, and software engineers in an Agile environment.

Your tasks

  • Designing, developing, and maintaining data ingestion and transformation pipelines

  • Building and evolving the data model with a strong focus on data quality, consistency and reliability

  • Developing and maintaining Python backend services and REST APIs that expose pricing and vehicle-related data

  • Integrating internal and external systems through APIs and event-driven data flows

  • Writing clean, well-documented and well-tested code while ensuring production stability through monitoring and data quality checks

  • Collaborating closely with Product Owners, Architects, Scrum Masters and Developers to deliver scalable business solutions

Requirements

  • At least 3 years of professional experience as a Python Developer with a focus on backend and data development

  • Strong proficiency in Python, including experience with data-processing libraries such as Pandas

  • Experience with frameworks such as FastAPI or Flask

  • Solid SQL skills and hands-on experience with relational databases, particularly PostgreSQL

  • Experience building and orchestrating data pipelines, ideally using Airflow

  • Familiarity with Git, code reviews, testing, and CI/CD practices

  • Fluent English and Polish communication skills, with experience working in an international environment

  • Willingness to work from the Warsaw office 2-3 days per week

Nice-to-have requirements

  • Experience with Angular

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