Senior AI Tech Lead — GenAI, Python & FastAPI

GFT Technologies SE; Kraków; Hybrid; PLN 210,000 - 323,000; Full time

Benefits offered by this job

Hybrid work in Kraków

Medical and life insurance

Lunch subsidy

Online training

E-learning access

Social events

Job summary

GFT Technologies SE in Kraków is seeking a seasoned Python developer to design and build AI-powered applications for the financial services sector. You will collaborate with business and technology stakeholders to deliver scalable backend services and data integration in a highly regulated environment.

The role focuses on GenAI solutions, FastAPI, LLM evaluation, and modern SDLC practices. Hybrid work three days per week in Kraków, with a comprehensive benefits package and opportunities for

Qualifications

• 5+ years of Python development experience.
• Strong experience with FastAPI.
• Hands-on ML experience and model evaluation.
• Experience with LLMs and GenAI solutions.
• Knowledge of prompt engineering, RAG, embeddings and vector databases.
• Experience with agentic AI frameworks incl. LangGraph and DeepAgent.
• Experience with MCP tool integration.
• Strong AI system design and API-based architectures.
• Experience with CosmosDB and PostgreSQL.
• Experience with Azure cloud services.
• Experience with AI-assisted software development.
• Solid CS fundamentals and modern SDLC knowledge.
• Excellent communication and stakeholder management.
• Ability to translate business requirements into scalable tech solutions.

Responsibilities

• Design and develop AI-powered applications using Python and FastAPI.
• Build GenAI solutions leveraging LLMs, RAG, embeddings, and vector databases.
• Create agentic AI workflows with LangGraph and DeepAgent.
• Integrate MCP tools and external services into AI ecosystems.
• Design scalable API-based architectures and backend services.
• Develop and maintain CosmosDB and PostgreSQL-backed systems.
• Evaluate models and improve AI solution quality.
• Collaborate with business and tech teams to translate requirements.
• Apply modern SDLC practices and AI-assisted development.

Skills

Python development

FastAPI

Machine learning

LLMs & Generative AI

Prompt engineering

RAG & embeddings

LangGraph & DeepAgent

MCP tool integration

AI system design

API-based architectures

CosmosDB

PostgreSQL

Azure cloud services

AI-assisted software development

CS fundamentals

SDLC

Communication & stakeholder management

Requirements translation

Tools

FastAPI

LangGraph

DeepAgent

CosmosDB

PostgreSQL

Azure

APIs & backend services

Job description

GFT Technologies SE in Kraków is seeking a seasoned Python developer to design and build AI-powered applications for the financial services sector. You will collaborate with business and technology stakeholders to deliver scalable backend services and data integration in a highly regulated environment.

The role focuses on GenAI solutions, FastAPI, LLM evaluation, and modern SDLC practices. Hybrid work three days per week in Kraków, with a comprehensive benefits package and opportunities for