Lorenc Estrefi

Lorenc Estrefi

AI Product Builder

Berlin, Germany ·github.com/jlorenc1986·linkedin.com/in/lorenc-estrefi-a4a66a56


I build AI products end-to-end — from validating the idea to shipping production-ready systems.

15+ years building products across startups and as an independent consultant in Berlin. Currently consulting at adesso SE while building my own AI-first products.


Senior Software Engineer · adesso SE
Apr 2025 – PresentBerlin · Hybrid

Building scalable enterprise platforms and cloud-native solutions for large-scale clients.

Freelance Senior Software Engineer · Self-Employed
Sep 2023 – Apr 2025Berlin · Remote

Built and shipped AI-powered products end-to-end, from architecture and prototyping to deployment and scaling.

Senior Software Engineer · Mister Spex
Jan 2021 – Aug 2023Berlin

Developed and optimized high-traffic e-commerce systems serving millions of users.

Team Lead · Automation Hero Inc
Jun 2019 – Jan 2021Berlin

Led development of AI-driven automation systems using React, Node.js and AWS.

Senior UI Engineer · Datameer
Jun 2017 – Jun 2019Berlin

Built data-intensive interfaces for large-scale analytics and business intelligence workflows.

Senior Fullstack Engineer · HRS Innovation Hub
Oct 2016 – Nov 2017Berlin

Designed and implemented AWS-based microservices architectures for travel and booking platforms.

Senior Frontend Engineer · Naspers Limited (OLX)
Dec 2015 – Jun 2016Berlin

Frontend engineering for OLX, a global marketplace platform with hundreds of millions of monthly users.