I build custom LLM integrations, RAG pipelines, and AI-powered applications for startups and businesses that need serious technical execution — not templates, not no-code, not hype.
ABOUT
I'm Lovro — the engineer behind Neural LB. I work directly with founders, product teams, and operators who need AI built properly: custom, scalable, and integrated into real systems.
With a background spanning full-stack development and AI engineering, I don't just connect APIs. I design the architecture, write the code, and ship products that hold up in production.
years shipping AI products
production deployments
system uptime
SERVICES
Three focused offerings. Each one delivers something real.
You have a product. I add the intelligence.
Custom RAG systems, LLM pipelines, AI agents, and model integrations — built in code, not drag-and-drop tools. Designed to scale, built to maintain, engineered to deliver measurable output.
End-to-end products with AI at the core.
From architecture to deployment, I build complete web applications where AI isn't bolted on — it's designed in from day one. Fast, clean, production-ready.
Not sure where to start? I'll tell you exactly what to build and how.
Architecture reviews, AI feasibility assessments, proof-of-concept builds, and technical strategy for teams that need senior guidance before committing to a direction.
Engagements from 1 week to ongoing retainer.
SELECTED WORK
Real projects. Real code. Real results.
AI Agents Article Debates
A small Next.js app where multiple AI personas read an article you supply and debate it in turn—streaming replies in real time with a playful “agent window” UI (think classic chat bubbles, but draggable cards over the page). Built as a demo by Lovro Bubanic (“Neural LB”): paste a URL, extract the article, then let the agents argue, agree, or push back on each other’s takes.
AI Agent · Lead Gen · Customer Support
A sellable, self-hosted web app: your customers talk to an AI on a public chat page, while you (the business owner) use a separate, private dashboard to view leads, upload business knowledge (text + PDFs), and see meetings the agent booked.
AI App · LangChain · Next.js
A full-stack web application that forecasts used and new vehicle prices over a five-year horizon. Users select a brand and body type; the backend combines historical market data with an LLM-driven analysis pipeline to return structured yearly projections, including confidence scores and depreciation rates.
AI SaaS · AWS · OpenAI
Serverless SaaS that uses OpenAI Vision to automatically generate titles, captions, and SEO tags for uploaded images — eliminating hours of manual content work for marketing teams.
TESTIMONIALS
Lovrobubanic set to the task I requested quickly and had the product completed within a short time. His feedback was prompt and his designs were great.
mekanikos
from Fiverr
Great person to work with, did everything and more to make sure the project turned out amazing
lundzy
from Fiverr
Great outcome, very easily to communicate, fast responses and delivery!
matthewkutamo
from Fiverr
Highly recommended. Very professional and easy to work with. He did exactly what asked and more and finished the task 6 days earlier than agreed.
andrebounames
from Fiverr
CONTACT
Whether you have a project in mind or just want to get on a call — fill this in. I'll get back within 24 hours and we'll take it from there.
Meetings are held over Google Meet, Zoom, or Teams — I'll send the link after we connect.