Sergey Kosachev

Head of Infrastructure at Performica

Sergey Kosachev has a diverse work experience spanning various roles in technology and infrastructure. Sergey started their career at ISPRAS in 1999 as a System Administrator and worked there until 2013. Sergey then joined Softline as an Instructor and Coach from 2005 to 2014. In 2009, they became the CTO at, where they developed the company's IT infrastructure and organized the IT support team. From 2013 to 2020, Sergey was the Co-founder and CEO of the Center of Electronic Testing, a development company specializing in creating testing applications for schools. In 2015, they joined QuantumSoft LLC as an Information Technology Engineer, working as a DevOps and infrastructure engineer for a large US company. In their most recent role, Sergey serves as the Head of Infrastructure at Performica, where they also held the position of Infrastructure Engineer.

Sergey Kosachev's education history includes studying IT at РГГУ. No specific start or end year is provided for this education. In addition, Sergey has obtained a certification as RHCE from Red Hat in March 2015.



  • Head of Infrastructure

    January, 2023 - present

  • Infrastructure Engineer

    November, 2022

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