# Sergiu Lazar Angelescu

> AI Product Manager at GaiaLogic and co-founder of Product Circle. I help product teams build AI-native operating models. Ex-Amazon, Forbes 30 Under 30 Romania.

I help product teams and their leaders work AI-native, from how they discover and build to how they measure what their work earns.

I'm an AI Product Manager at GaiaLogic, building Gaia Decision Intelligence, and co-founder of Product Circle, a community of product builders and leaders in 16 countries. Software engineer by training, nearly five years at Amazon, three startups co-founded.

## Key facts

- Name: Sergiu Lazar Angelescu (also known as Sergiu Lazar)
- Current roles: AI Product Manager at GaiaLogic Solutions AG (building Gaia Decision Intelligence, https://gaiadecision.ai/); Co-Founder & Chief Growth Officer at Product Circle (formerly Product Weekend)
- Based in: Milan, Italy
- Languages: English, Romanian, Italian
- Honors: Forbes 30 Under 30 Romania
- Education: B.Sc. Computer Science, Politehnica University of Bucharest; M.Sc. Data Science & Entrepreneurship (EIT Digital), Eindhoven University of Technology; M.Sc. Data Science & Entrepreneurship (EIT Digital), Technische Universität Berlin
- Topics: Product management, AI product management, AI-native product operating models, AI and automation for product teams, Decision intelligence, Product strategy, Growth strategy, North Star metrics, Product discovery, Community-led growth

## About

I started as a software engineer. My first product job was at SpotYet, a startup I co-founded, where we took two SaaS products from zero to real customers. I wrote the matching algorithm behind both, and it doubled as my Master's thesis.

Then nearly five years at Amazon in EU Customer Service, running programs across nine European marketplaces to reduce how often customers needed to contact us while improving their experience. One mechanism I launched cut 9 million contacts a year, worth $85M annualized.

Since 2023 I've been co-founder and Chief Growth Officer of Product Circle, formerly Product Weekend. We've run 55 events in 16 countries for more than 1,400 product people. At GaiaLogic, I'm building Gaia Decision Intelligence, an AI workspace for better decisions.

## Point of view

- **Product managers and leaders should be builders.** With AI, a product manager can turn an idea into a working prototype in an afternoon instead of writing a spec and waiting for a sprint. Every PM and every product leader should be able to do that. It also has a limit. The prototype is where a PM's building stops; taking it to production is engineering's job.
- **If it isn't tied to revenue, it isn't product.** Product exists to make the business money. A roadmap that can't be traced to revenue, retention or cost is a list of opinions. And if product leaders are asked to own outcomes, they should hold the budget that produces them.
- **Teams grow in small rooms.** Product people learn fastest from peers a step ahead of them, in small groups where it's safe to say what isn't working. Frameworks help, but they don't replace honest conversations. It's the idea Product Circle is built on.

## How I help

- **Coaching**: AI is changing what product leaders are expected to know and do, faster than most roles can keep up. If you feel you're falling behind, and it's starting to show in your results or in how your team sees you, I work with you one-on-one to close the gap. What to learn, what to try hands-on, and how to lead your team through the change. undefined
- **Advisory & Consulting**: I advise companies on product strategy, AI adoption across the product team, product operating models and monetization. Available for advisory retainers, consulting engagements and fractional product leadership roles. At Carrefour Romania, lead time per feature went from 12 weeks to 6 in a five-month engagement.
- **Workshops & Speaking**: I run workshops and speak on AI-powered product development, scaling product organizations, and building products people trust. Available for keynotes, panels, and half-day or full-day workshops. Workshops delivered at Swisscom, Flutter International and Carrefour Romania. Spoke at Productized 2024.

## Background

- 2026 – now: GaiaLogic Solutions AG, AI Product Manager
- 2026: Carrefour Romania, Product Management Consultant
- 2023 – now: Product Circle, Co-Founder & Chief Growth Officer
- 2021 – 2023: Jungle Retreats, Co-Founder & Host
- 2020 – 2024: Amazon, Program & Project Manager
- 2019 – 2021: SpotYet, CPO & Co-Founder

## Contact

- Website: https://lazarsergiu.com
- Book a call: https://calendly.com/sergiu-productcircle/30min
- Contact form: https://lazarsergiu.com/#contact
- LinkedIn: https://www.linkedin.com/in/sergiu-lazar/