Full Stack Python Developer

Jit Team; Warszawa; Hybrid; PLN 166,000 - 240,000; Full time

Job summary

Jit Team in Warsaw is seeking a data science/AI engineer to lead the development of an Underwriter OS. You will build a React/Next.js frontend and a Python/FastAPI backend, integrating AI agents to transform underwriting workflows.

Join a hybrid role with 3 days on-site in Warsaw and 2 days remote, contributing to Azure-based deployments, data pipelines, and cross‑functional collaboration to deliver impactful insurance solutions.

Qualifications

• Minimum 2 years in Data Science/AI with at least 1 year of production deployments.
• Strong React/Next.js and Python/FastAPI proficiency.
• Azure Blob Storage, Document Intelligence, AI Foundry expertise.
• LangGraph or similar orchestration frameworks and prompt engineering.
• PostgreSQL and SQL fluency.
• Python libraries: pandas, scikit-learn, PyTorch/TensorFlow.
• MLOps hands-on experience (Azure ML, MLflow, Docker, Kubernetes, CI/CD).

Responsibilities

• Build an Underwriter OS with React/Next.js frontend and Python/FastAPI backend.
• Develop data extraction pipelines from broker documents and implement prompt strategies for insurance guidelines.
• Deploy on Azure with containerized CI/CD workflows and orchestrate AI agents for underwriting transformations.

Skills

Data Science

React/Next.js

Python/FastAPI

Azure

LangGraph

LangChain

PostgreSQL

Pandas

scikit-learn

PyTorch/TensorFlow

MLOps

CI/CD

Docker

Kubernetes

Tools

MLflow

Azure ML

Azure Blob Storage

Job description

Salary: 900-1300 PLN/MD
Type of work: Hybrid (3 days/week on-site in Warsaw, 2 days remote)
Why choose this offer?

• Pioneering role building AI agents for insurance underwriting transformation
• Work with cutting-edge technologies: LangGraph, Azure AI Foundry, Document Intelligence
• Hybrid setup in central Warsaw (modern business district)
• Full-stack ownership from idea to production deployment on Azure
• Cross-functional team environment with direct business impact
• Opportunity to shape a new operational model for the insurance industry

Project Building an Underwriter OS – a modern application that combines React/Next.js frontend, Python/FastAPI backend, and orchestrated AI agents to transform underwriting processes. The system integrates with policy administration platforms, tarification engines, DMS, CRM, broker portals, and Outlook. You'll develop data extraction pipelines from broker documents, build prompt engineering strategies for insurance guidelines, and deploy everything on Azure with containerized CI/CD workflows.
Expected competences and knowledge

• Minimum 2 years in Data Science/AI with at least 1 year of production deployments
• Strong React/Next.js and Python/FastAPI proficiency
• Azure Blob Storage, Document Intelligence, AI Foundry expertise
• LangGraph or similar orchestration frameworks and prompt engineering
• PostgreSQL and SQL fluency
• Python libraries: pandas, scikit-learn, PyTorch/TensorFlow
• MLOps hands-on experience (Azure ML, MLflow, Docker, Kubernetes, CI/CD)

Technologies you'll work with

• Next.js/React (frontend)
• Python, FastAPI, LangGraph/LangChain (backend & AI orchestration)
• Azure: Blob Storage, Document Intelligence, AI Foundry, OpenAI, ML
• PostgreSQL and SQL
• Docker, Kubernetes, CI/CD pipelines
• Azure AI Search, Power Platform (nice to have)

Client – why choose this particular client from the Jit portfolio?
For over 80 years, our client has been a reliable and trusted insight partner for the world's biggest companies and leading brands that make a difference in every consumer's life – and they will continue to build on this. They connect data, science, and innovative digital research solutions to provide answers for key business questions around consumers, markets, brands, and media. With headquarters in Germany and a presence in around 60 countries worldwide, employees benefit from their global company with a diverse community of ~9,000 individuals. Proud of their heritage and future, they are currently in the latter stages of a transformational journey from a traditional market research company to a trusted provider of prescriptive data analytics powered by innovative technology. For their employees as well as for their clients, our client pursues one goal: Growth from Knowledge!
About Jit Team The Human Factor of IT - it’s not just a slogan, it’s a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 770 experienced experts, to whom we offer developmental projects, a wide range of benefits, and a proprietary professional development programme. Together with clients from around the world, we create innovative IT solutions delivered by highly specialised and efficient teams.
Behind our maxim are also charitable and educational activities. We support schools, universities, and educational institutions by conducting workshops, running educational projects, sponsoring events, and donating learning equipment. We offer internships that help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We also support numerous charitable organisations helping people in need, children, and the elderly. We are a Polish company and we share what we have achieved over more than 15 years of activity. By supporting local initiatives, we contribute to the circulation of good energy.