Lucian Oprea
Senior Backend Engineer & Instructor
Romania
I’m a software engineer from Romania with a strong computer science background and more than 14 years of professional experience.
I’m passionate about building products that are easy to use, intelligent, and well-architected. I care about code that is thoughtfully written and about the engineering decisions that make systems reliable and maintainable. 📐
Over the years, I’ve taught more than 20,000 students through seven courses and shared backend engineering lessons with a community of more than 60,000 YouTube subscribers.
I bring the same care to teaching that I bring to software: explain the reasoning, make the trade-offs visible, and leave people with something they can apply. 🤓
I hope the courses, interview questions, and free resources on this website help you build better systems and become a more confident engineer. 🚀
Stay in touch
Follow the work behind the lessons.
I share new backend engineering videos, practical resources, and the decisions behind new courses as I build them.