July 7, 2026

Python Fullstack Developer (Python / Flask / AI / React)

Senior • Hybrid

130 - 142 PLN/hr

Warsaw, Poland

Expert Python Fullstack Developer

📍 Location: Warsaw
🏢 Work model: Hybrid (3 days per week in the office)
📅 Project duration: July 2026 – December 2026
💰 B2B rate: up to 142 PLN/h
Full-time (40h/week)

About the project

We are looking for an experienced Python Fullstack Developer to join an international team delivering innovative solutions for the financial sector. The project focuses on data transformation, AI-driven automation, and intelligent data enrichment, leveraging modern technologies including Large Language Models (LLMs) to improve operational efficiency and regulatory compliance.

You will work closely with Product Owners, Architects, Analysts and other developers to transform business requirements into scalable, secure and high-quality software solutions.

Your responsibilities

  • Design, develop and maintain modern full-stack applications.

  • Build backend services using Python and Flask.

  • Develop and maintain REST APIs and data integration services.

  • Implement AI-powered solutions using LLMs for automation and data enrichment.

  • Develop frontend components using React and JavaScript.

  • Build microservices and deployment pipelines.

  • Integrate with databases, external APIs and enterprise platforms.

  • Ensure data quality, reconciliation and regulatory compliance.

  • Write automated tests and participate in code reviews.

  • Collaborate with cross-functional, international teams in an Agile environment.

We are looking for someone who has

  • Strong commercial experience with Python development.

  • Hands-on experience with Flask (or similar Python frameworks).

  • Solid knowledge of REST API development.

  • Experience working with Large Language Models (LLMs).

  • Experience with Docker.

  • Good knowledge of JavaScript.

  • Experience with React.

  • Good understanding of PostgreSQL, SQL and SQLAlchemy.

  • Experience writing automated tests (preferably using pytest).

  • Experience with CI/CD pipelines.

  • Good knowledge of Git.

  • Good command of English (B2/C1).

Nice to have

  • AI development tools and frameworks.

  • TypeScript.

  • Redux or Zustand.

  • AWS Cloud.

  • Kubernetes.

  • SharePoint API.

  • JFrog Artifactory.

  • Web Components.

  • CSS / SCSS.

What we offer

  • B2B rate of up to 142 PLN/hour.

  • Opportunity to work on innovative AI and data-driven solutions within the banking sector.

  • International and collaborative Agile environment.

  • Exposure to modern technologies including LLMs, cloud solutions and microservices.

  • Challenging project with real business impact.

  • Long-term cooperation with experienced engineering team

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Warsaw, Poland

170 - 170 PLN

🏢 Summary: Full-Stack Developer role focused on building and maintaining automation solutions for Trading Front and Back Office processes. The position involves developing scalable systems for deal capture and settlement, leveraging Python, relational databases, and modern DevOps practices. The role emphasizes robust governance, logging, and cloud-based infrastructure to ensure reliable and efficient operations. 🗂️ Requirements: Proficiency in relational databases (PostgreSQL, Oracle DB), Strong experience with Python and Flask, Expertise in test automation, Experience with CI/CD pipelines, Hands-on experience with Azure services, Experience with Docker and Kubernetes, Proficiency in Angular, Ability to develop automation solutions for trading processes 📃 Skills: Python, Flask, PostgreSQL, Oracle, Angular, Azure, Docker, Kubernetes, CI/CD, SQL, Automation 🏢 Description: Introduction & Summary We are seeking a skilled Full-Stack Developer with a focus on Trading & Automation. In this role, you will be instrumental in transforming complex commercial contracts through reliable and scalable digital processes. Your expertise in relational databases, Python, and automation frameworks will be essential in establishing robust systems that enhance the efficiency of business operations. Main Responsibilities Develop automation solutions for deal capture and settlement in Trading Front and Back Office. Ensure compliance and protection of processes through governance and improved logging environments. Collaborate with team members and stakeholders to align solutions with business requirements. Maintain operational excellence through best practices and cost optimization. Key Requirements Proficiency in relational databases (PostgreSQL, Oracle DB). Familiarity with Python and frameworks like Flask. Expertise in test automation, CI/CD pipelines, Azure services, Docker, and Kubernetes. Proficiency with web framework Angular. Ability to work effectively in an agile environment and take ownership of tasks. Other Details This position is based in Warsaw, Poland, where the consultant is required to be on-site for 2 days in week.