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Sergey Khaladzinski

CTO / FCTO / Tech Advisor

New York, NY, US

About

A seasoned technology leader with over two decades of experience, specializing in building high-performing teams and delivering impactful solutions by focusing on people, processes, and products. As an entrepreneur, Sergey has co-founded multiple startups, blending his firsthand experience with his role as a trusted advisor to other founders, helping them overcome technical challenges and scale their ventures with confidence. In his career as a CTO, Sergey has transformed failing products into scalable SaaS solutions, assembled and led fully remote teams across North America and Europe, and spearheaded the development of cutting-edge fintech innovations, including touchless payment systems tailored for highly regulated industries. Known for his hands-on leadership and human-centric approach, Sergey is passionate about empowering startups to grow efficiently, conserve resources, and achieve technical excellence. Outside of his professional work, he shares insights on his blog, drawing from his unique journey as a founder, a father and a technology leader.

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Work experience

  1. January 2019 – present

    The Helios Companies, LLC

    Chief Technology Officer
  2. June 2017 – February 2019

    Hbo

    Sre / Dre
  3. February 2013 – June 2017

    Mansueto Ventures

    Operations
  4. February 2010 – February 2013

    Mansueto Ventures

    Senior Web Developer
  5. March 2008 – March 2010

    Mansueto Ventures

    Web Developer
  6. February 2007 – March 2008

    Oddcast

    Software Engineer
  7. January 2004 – January 2006

    b.s.electronics Corp

    PHP Developer

Education

  1. 2001 – 2006

    State Technical University, Brest, Belarus

    Bachelors, Bachelor of Science