This position is open exclusively for Ukrainian residents within Ukraine (preferably Kyiv or Lviv). Cossack Labs is looking for an Application security engineer to join our Security team and work with us on building and breaking software.

This position is open exclusively to Ukrainian residents currently living in Ukraine (preferably in Kyiv or Lviv).

This position is open exclusively to Ukrainian residents within Ukraine (preferably Kyiv). We’re looking for a Senior Node.js Engineer to build and evolve our web platform, with a primary focus on Node.js, React, and PostgreSQL development.