Aleksandar Pesic

I’m an AI & Data Engineer with over three years of experience turning business problems into working software. I enjoy building AI products, automating repetitive processes, and developing the data pipelines behind them. My work spans LLMs, RAG, multi-agent systems, document extraction, and computer vision, primarily using Python, SQL, and cloud services. For BrainDash, a platform supporting children’s wellbeing, I designed and implemented the AI and LLM components, developed data schemas and models, and helped shape technical solutions. I also built an invoice extraction pipeline that made processing around 30 times faster, and previously worked on tumor segmentation in medical tissue images. I like working directly with clients to understand their problems, discuss options, and build something useful. I’m curious by nature and enjoy researching and experimenting with new approaches when they can improve a solution. I’m looking for remote AI/ML and data engineering opportunities, with a preference for freelance projects and openness to product companies and startups where I can take ownership and contribute to meaningful products.