Backend & AI Developer
Building APIs and intelligent products with Python

Django, FastAPI, LLMs, Agents and NLP applied to real-world problems.

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Portrait of João Assalim

About

I'm a backend developer specialized in Python and applied AI. I build scalable APIs and intelligent features with Django and FastAPI, orchestrating LLMs with LangChain and PydanticAI. I hold a degree in Systems Analysis and Development from FATEC Ourinhos. Hands‑on projects and competitive programming shaped my problem‑solving, teamwork, and performance under pressure.

  • Backend: FastAPI, Django • testing, architecture, observability, CI/CD
  • Cloud: AWS EC2, S3, Lambda • pipelines and scalable delivery
  • ML & LLMs: TensorFlow, scikit‑learn, LangChain, PydanticAI • NLP, Computer Vision, automation, LLM agents
  • Data: Pandas, NumPy, Matplotlib • insights and visualization
  • Projects: Weapon Detector (real‑time safety), CityOn (smart‑city app on Google Play)
  • Awards: 1st — VI FATEC Ourinhos (2023); Top 7 — XIII InterFatecs (2024); active in SBC contests
  • Focus: Django + AI products; FastAPI + AWS microservices; LLM agents and neuro‑inspired systems

Real World Projects

Weapons & Knives Detector (YOLOv8)

Real-time surveillance using YOLOv8 with transfer learning and camera integration.

Class-by-Description (NLP)

Item classification from text descriptions with scikit‑learn, TensorFlow and BERT.