Senior Python Developer

Quick Facts

• Role: Senior Python Developer

Description

Join a project for a large financial organization where you’ll build and evolve a modern platform replacing an Oracle SaaS solution for Global Collateral and Facility Management. You will develop Python-based functionality, design and integrate REST APIs, and work with relational databases and CI/CD while leveraging GenAI/LLM capabilities using RAG and AI-enabled SDLC practices. The role focuses on code quality, performance, security, scalability, and reliable system operation.

Responsibilities

• Develop and integrate platform features using Python

• Design and implement integrations between systems (REST API and asynchronous communication)

• Work with relational databases, optimize queries, and ensure data consistency

• Create unit, integration, and contract tests; develop CI/CD and automate quality checks

• Ensure quality, performance, scalability, security, and reliability of delivered solutions

• Collaborate with Tech Leads, architects, QA, and platform teams

• Diagnose technical issues, analyze incidents, and improve system monitoring

• Use AI tools and LLMs in the software delivery process

• Prototype and integrate GenAI solutions (RAG, output evaluation, prompt version management)

• Improve software delivery architecture and processes, including with AI

Requirements

• Minimum 8 years of commercial software development experience

• Strong Python programming experience

• Practical cloud experience with at least one cloud platform (preferred: GCP)

• Strong relational database experience (Oracle or PostgreSQL)

• Ability to design and integrate REST APIs

• Testing best practices including unit and integration tests; focus on quality and reliability

• Practical experience with CI/CD processes

• Practical knowledge of GenAI/LLMs, RAG patterns, and AI agents; safe usage principles

• Experience implementing AI-enabled SDLC with governance and measuring AI impact on team productivity

• Practical experience prototyping/integrating GenAI solutions (RAG pipelines, evaluation of result quality, prompt versioning)

• Comfortable communication in English

Benefits

• B2B contract collaboration

• Hybrid model: 6 days per month in the Kraków office