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Stefan Kalicanin

@stefankalicanin

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Fullstack developer focused on scalable Python backends, responsive React frontends, and practical AI systems.

Serbia

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What I'm looking for

I’m looking for a role where I can build end-to-end products with scalable Python backends and React frontends, deploy reliable microservices, and ship practical AI/ML features that reduce manual work and improve operational efficiency.

I’m a results-driven Fullstack Developer with experience building scalable Python backends and responsive React frontends. I deliver end-to-end systems—from architecture design through production deployment—across logistics, geospatial tech, and AI.

I’ve built and operated Dockerized microservices, designed and optimized PostgreSQL schemas, and created geospatial data APIs with FastAPI and Flask. I also bring hands-on ML engineering experience, including a 3D point cloud classification model and an AI-powered Q&A system using a fine-tuned OpenAI model.

Experience

Work history, roles, and key accomplishments

Python Developer & AI Engineer

DataDev

Jun 2025 - Nov 2025 (5 months)

Designed and maintained Python backend services (FastAPI, Flask, PostgreSQL) serving geospatial data APIs. Architected and operated Dockerized microservices and built a C++-based ML model for automatic 3D point cloud (LiDAR) classification to reduce manual annotation time.

Python fastAPI Flask PostgreSQL Docker Microservices C++Machine Learning

Fullstack Developer

Remotehands247

Dec 2023 - Jun 2025 (1 year 6 months)

Led end-to-end development and production deployment of an employee and inventory management platform, replacing manual processes to improve operational efficiency. Automated reports, email workflows, and internal ticketing, and redesigned the PostgreSQL schema to improve data retrieval speed and reliability.

ReactJS TailwindCSS PostgreSQL SQL Query Optimization Schema Design RESTful APIs Workflows

Fullstack Developer & AI Engineer

Code2

Apr 2023 - Jun 2023 (2 months)

Developed a topic-based Q&A system powered by a fine-tuned OpenAI model and contributed to early production-grade LLM integration in the local ecosystem. Designed the database schema and built a responsive frontend interface for the AI-powered application.

Python LLM Machine Learning Database Schema Design SQL ReactJS Frontend API Integration