Chafik Boukhalfa

Engineer and founder. I have spent the past decade building products at early‑stage companies, from the first commit through to acquisition.

Lately: agents and the harnesses they run in, small‑model training on my DGX Sparks, and CUDA kernel tinkering. I use AI to build things I could not before, and to learn faster than I could alone.

Posts

  1. Three days of agent-driven mathematics

    55 pull requests, two DGX Sparks, and a moving research frontier.

Now

  1. 2025–

    OpenSea · Member of Technical Staff

    Onchain exchange for tokens, NFTs, and whatever comes next.

  2. 2025–

    Obsidian Labs · Principal

    Applied AI lab and consulting firm: custom harnesses, models, and AI workflows. OpenAI Select Partner.

  3. 2026–

    ES Consulting · Advisor

    2023–

    Syncly AI · Advisor

Before

  1. 2022–25

    Rally · Member of Technical Staff

    Self‑custody crypto wallet with social features, on web and mobile. Acquired by OpenSea.

  2. 2020–23

    Syncly AI · Co‑Founder & CTO

    AI that works out why customers stay, then acts on it across every account.

  3. 2017–20

    BrandBot · Co‑Founder & CTO

    2020

    Xplor · Director of Engineering, Marketing Automation

    Customer communication platform that helps businesses reach people at the right moment. Acquired by TSG, now Xplor.