AI Product Engineer

Hi, I'm Lucas.

I design and build custom software for businesses, combining software engineering, UX, and AI. I don't see them as separate parts of a project. How a product works, how people experience it, and how it's built are decisions that need to evolve together.

My experience

20+ years

Building software.

8+ years

Integrating UX into my work.

The last few years

Bringing AI into products and the way I build them.

From building software to designing products

I started as a developer more than twenty years ago, building websites, e-commerce platforms, applications, and enterprise systems.

Over time, projects became more complex, and my role evolved with them. I moved from implementing features to becoming increasingly involved in product decisions, architecture, and designing complete systems.

I learned that building good software isn't just about solving technical problems. It's about making the right decisions about what to build, how it should work, and how it can evolve.

UX + Engineering

Experience shapes architecture. Architecture shapes experience, too.

More than eight years ago, UX became a core discipline in my work.

A product can be technically solid and still fail if people struggle to use it. In the same way, a great interface isn't enough if the system behind it can't support what the product needs to do.

That's why I don't treat design and engineering as separate phases. User experience, workflows, data, and architecture are shaped together, influencing each other throughout the process.

Then AI changed what software could do.

Artificial intelligence isn't just another feature or a new interface.

It can interpret information, retrieve context, automate tasks, use tools, and actively participate in workflows alongside people.

But it also introduces new product and engineering decisions.

What should AI handle? Which decisions need human oversight? What context does it need to work? When should it act, ask, suggest, or escalate?

And most importantly, how do we design experiences where humans and AI collaborate in ways that are useful, reliable, and controlled?

That's where I focus my work today: designing and building software where people, data, business rules, and artificial intelligence work together as part of the same product.

How I work today

I'm an independent AI Product Engineer. I combine product design, user experience, software architecture, and artificial intelligence to turn business problems into digital products and systems running in production.

I use AI to accelerate analysis, specification, development, and validation. But decisions about experience, architecture, quality, and security remain my responsibility.

Throughout my career, I've worked on projects for organizations including TÜV NORD, HSBC, and Argentina's Ministry of Security, as well as companies and startups across different industries.

I work independently from Buenos Aires, Argentina, with clients and teams around the world.

I'm not an agency. You work directly with me.

I'm involved throughout the process: from understanding the problem and designing the experience to defining the architecture, overseeing development, shipping to production, and supporting the product as it evolves.

Available for new projects

Do you have an idea or a problem that software could solve better?

Tell me what you're looking to build or the problem you're trying to solve.

We can start by understanding the challenge, exploring the possibilities, and defining the next step.

AI Product Engineer

Buenos Aires, Argentina · Working with teams worldwide.

© 2026 Lucas Semelin. All rights reserved.