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November 3, 2026

Full Stack Developer (Python, FastAPI, Next.js)

Senior • Remote

23,000 - 27,000 PLN/yr

Wrocław, Poland

Quick Facts

  • Role: Full Stack Developer (Python, FastAPI, Next.js)

Description

Design and develop fullstack applications using FastAPI and Next.js, including REST APIs, ETL pipelines, and AI-powered features. Integrate LLM capabilities with OpenAI and LangChain, work with data science workflows (NumPy, data modeling, analytics), and design database structures using MongoDB/PostgreSQL. Deploy and maintain infrastructure on Azure while contributing to architectural and product decisions.

Responsibilities

  • Design and develop fullstack applications (FastAPI + Next.js)
  • Build and maintain REST APIs with FastAPI
  • Design and implement ETL pipelines for data processing
  • Integrate LLMs (OpenAI) and build AI-powered features using LangChain
  • Work with data science workflows (NumPy, data modeling, analytics)
  • Design database structures (MongoDB / PostgreSQL)
  • Deploy and maintain infrastructure on Azure
  • Contribute to architectural and product decisions

Requirements

Must-have

  • Python (6+ years)
  • FastAPI (backend services and APIs)
  • JavaScript / Next.js (4+ years, fullstack frontend development)
  • LLMs / OpenAI (2+ years, practical AI model integration)
  • Data Science (5+ years, including NumPy and analytical workflows)
  • MongoDB (3+ years, schema design and querying)
  • Azure (6+ years, cloud infrastructure experience)

Nice-to-have

  • LangChain
  • Databricks / Spark
  • Terraform
  • PostgreSQL
  • Kubernetes
  • NLP
  • Django / Flask
  • C# / C++
  • Orleans / SignalR
  • ELK Stack
  • CQRS, SOLID, OOD, Design Patterns
  • CI/CD
  • Cybersecurity
  • IoT

Benefits

Not specified in the provided posting.

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