Marios Antonoudiou , AI product engineer.
Building AI-powered products that feel simple, useful, and ready for real users.

I design and ship AI-enabled product experiences across frontend architecture, interaction design, and product workflows. My focus is turning complex systems, data, and model capabilities into software people can actually understand, trust, and use.

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When the Model Goes Dark: The Real Cost of Closed-Source AI

Three days. That's how long it took for a flagship closed-source AI model to go from public release to global blackout. A leading frontier lab launche…

15th of June 2026

Been building with

Lateralus Ventures

Frontend work on Ask Chief, building interfaces for AI-powered products that needed to feel simple while handling complex workflows underneath.

Celonis

Building out analytical interfaces for OCPM, a shared component library, and tooling that made it easier for the whole team to ship.

Lenses.io

Product interfaces for SQL Processors and Data Catalog, a shared component library, and developer tooling including the CLI.

The Chat Shop

Streaming data infrastructure built from scratch, along with a processing pipeline that kept delivery running reliably at scale.

Commversion

Customer delivery platform and its public-facing side, plus InstantConnect, taken from design through to implementation.

Personal projects

Ghostwriter

Compatible with Strava

Creative post-generation for Strava activities with a lightweight, playful product feel.

Places for Zendesk

Built for Zendesk marketplace

Location-aware lead capture designed to connect digital conversations to real-world businesses.

SneakPeek

Built for LiveChat marketplace

Turn plain links into richer, more informative chat experiences.

Let's connect

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