Nikola Marinkovic

I’m a Senior AI & Full Stack Engineer with over 10 years of experience delivering scalable web, mobile, and AI-driven software solutions across healthcare, SaaS, enterprise, and business intelligence. I design secure backend services, intuitive frontend applications, and intelligent systems powered by large language models.

Since 09/2024, I’ve been building AI products as a freelance engineer—including an AI-powered healthcare platform for medical image analysis that supports automated anomaly detection in radiology scans. I’ve also engineered an AI-driven shipping management platform with intelligent PDF document processing, and a serverless AI-powered SaaS solution for business intelligence using OpenAI APIs, Next.js, and Supabase. On Azure Machine Learning, I’ve deployed generative AI solutions for content generation, predictive analytics, and data augmentation.

Previously, at Qodea (12/2021–08/2024), I built an AI-powered legal contract extraction platform using GPT-4 and LangChain, plus an LLM-based conversational chatbot for customer support and knowledge management. I improved application performance and SEO scores by approximately 25% through Next.js server-side rendering, lazy loading, and frontend optimization, while also delivering products across Angular, Laravel, MySQL, and Flutter. Earlier, at Timego Dev LTD (02/2020–11/2021), I designed scalable backend services with Node.js and Python, improving API response times and database performance through query optimization and architectural enhancements.