Sergiu Lazar Angelescu

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 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.

Milan, Italy

About

My journey so far

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 10 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.

Milan, Italy

Sergiu Lazar Angelescu, AI Product Manager and co-founder of Product Circle

Point of view

My thoughts on how Product Management is evolving

  1. Product managers and leaders must be able to code.

    With most new code generated by AI, unclear requirements can become product decisions hidden in the code. Technical fluency helps product leaders prototype a shared vision, spot those decisions, and work with engineering on evals and guardrails that protect the user experience.

  2. If it's not tied to revenue, you're doing it wrong.

    A roadmap that can't be traced to revenue, retention or cost is a list of opinions. Leaders who own outcomes should own the budget too.

  3. The product team playbook is being rewritten.

    AI is reshaping team structures and raising the pressure to deliver fast. What worked before COVID and AI doesn't anymore. Culture, processes and continuous learning now make the difference.

Services

How I help

Coaching

For Product Directors, VPs of Product and CPOs

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.

Advisory & Consulting

For companies and product organizations

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

For conferences, offsites and product teams

I run workshops and speak on AI-powered product development, scaling product orgs, and building products people trust. Available for keynotes, panels, and half-day or full-day workshops.

  • Building Products Faster with AI-Powered Workflows
  • Setting up Evals & Review Loops when most code is AI-generated
  • Trust as a Product Advantage in the Age of AI

Workshops delivered at companies such as Swisscom, Betfair Romania Development and Carrefour Romania.

Spoke at Productized 2024 and Product Circle events across Europe.

Background

Background

  1. 2026 – nowGaiaLogic Solutions AGAI Product Manager
  2. 2026Carrefour RomaniaProduct Management Consultant
  3. 2023 – nowProduct CircleCo-Founder & Chief Growth Officer
  4. 2021 – 2023Jungle RetreatsCo-Founder & Host
  5. 2020 – 2024AmazonProgram & Project Manager
  6. 2019 – 2021SpotYetCPO & Co-Founder

Contact

Let's work together

Whether you're looking for a coach, a consultant or a speaker.

Tell me what you're working on

Share your context, your goals and your timing, and I'll respond within 24 hours.