Christina Stejskalova

Applied AI Leader, I use my knowledge in data as my edge in AI | Ex - Meta | Ex-Founder | Applied AI Built experimentation and BI systems used by 1,000+ people

New York, New York, United States

About

I’ve always been a builder. When I first moved to the United States, I applied to more than 200 jobs and heard nothing back. Instead of waiting for an opportunity, I created one. I started showing companies how I could deliver value before being hired, and that approach helped me land my first major role at Facebook. At Facebook, I joined a product that was weeks away from being shut down. Most people saw an underperforming app, but I saw potential in the data. I built a cross-functional plan with product, engineering, and legal, redesigned the notification strategy, and turned it into the top non-gaming app in the VR store. That success laid the groundwork for Meta’s later expansion into the metaverse. At Lively, I implemented a complete data infrastructure in 7 months, giving every team visibility into key metrics for the first time. At The Pill Club, I built an experimentation framework in 3 weeks that reached 47% event coverage and shifted product development to an experimentation-first culture. Most recently at Ontra, I rebuilt the company’s entire data ecosystem. I consolidated 1,500 dashboards into 150 unified ones, created 26 semantic models, and increased data adoption from 49% to 86%. I also launched ML-based anonymization systems with 100% document coverage, giving the business full control over sensitive data handling. Across every role, I’ve been the one who builds clarity where there is none. I design systems that make data usable, measurable, and scalable, from raw telemetry to decision-ready insights. If you’re exploring challenges in data, AI, or experimentation systems, I’m always open to connecting and exchanging ideas. [email protected]

Experience

  • AI Architect at A.Team
    Oct 2025 - Present · 9 mos

    Built multi-agent system that identifies trends, and launches creative briefs. Built product from 0 -> 1, built UI, and helped close 2 deals. Built meeting extraction agent that leverage prompt engineering to improve quality extraction from ~50% to 78% recall. Built golden data set Set up experimentation to test and store improvments Built a dual extraction system to track inconsistent items shown to user so that we can learn by injecting learnings back into Prompt Stack: Claude Code, Python,

  • Director of Data at Ontra
    Sep 2023 - Feb 2025 · 1 yr 6 mos

    Head of entire data function (data eng., analytics and science)

  • Head of Data at The Pill Club
    Mar 2022 - Oct 2023 · 1 yr 8 mos

    Head/Senior Director of entire data function (data eng, analytics and science)

  • Director Of Analytics at Jabra Hearing
    2021 - Mar 2022 · 1 yr 3 mos

    Built the data function at Lively (Acquired by GN) from the ground up in 7 months.

  • LMNS (Full-time · 1 yr 5 mos)
    • CEO - Head of Product
      Feb 2020 - 2021 · 1 yr

      Founded company focused on using skills to find jobs. 1/6 companies to get Venture investment from Antler

    • Chief Product Officer
      Sep 2019 - Feb 2020 · 6 mos