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June 20, 2026

Senior Software Engineer (Python)​

Senior • Remote

24,000 - 25,000 PLN

Krakow, Poland

Join the e-commerce team as a Senior Software Engineer (Python) and create innovative solutions powered by Artificial Intelligence and Large Language Models.

Project

You will take part in building a strategic component in the field of artificial intelligence (API gateway, orchestration layer) for a Martech/e-commerce solutions ecosystem. 99% of new functionalities.

Stack

  • Python
  • AWS
  • FastAPI
  • FastMCP

Industry

Martech/E-commerce

What will you be doing on a daily basis?

  • Design/architecture, develop, implement, and test web-based applications
  • Collaborate with Product Design and Product Management to develop applications according to the defined specifications
  • Implement new features and maintain the existing codebase
  • Follow coding standards and best practices
  • Ensure quality, clean, tested code is produced (unit, integration, and other QA tests)
  • Assist the Support and Engineering team in debugging and troubleshooting software defects
  • Coach and mentor junior software engineers in the team
  • Help create team and development processes, and selection of tools to assist in these efforts
  • Contribute to the research and specification phases with Product Managers when exploring new product opportunities and features

What will help you get the job done?

  • 7+ years of practical experience in the development of commercial-grade web-based software applications using Python
  • Demonstrated proficiency with data-driven web applications
  • Practical use of SOLID programming principles and Domain-Driven Design programming
  • Experience working with Large Language Models (LLMs) and other NLP technologies in a multi-agent system (nice to have)
  • 2 or more years of competitive web development experience in a Scrum/Kanban/Agile environment
  • Basic knowledge of machine learning methods and algorithms
  • Experience with data model design, implementation, and support of SQL databases (MySQL, MariaDB, Postgres)
  • Strong communication skills and ability to work in cross-functional teams
  • At least B2 English proficiency level

We offer

  • Vacation days
  • Private medical packages (Luxmed or Medicover)
  • Benefits System (multi-sport)
  • Supportive company culture – flat structure, strong teamwork, and openness to new ideas
  • Remote-first setup