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We are seeking a highly experienced Senior / Staff Software Engineer to take on a technical leadership role for an external contractor team maintaining a complex Identity Security product.
This position acts as the primary technical interface between engineering teams and management, ensuring system stability, scalability, and high operational quality.
The role combines architectural responsibility with hands-on problem solving, including direct involvement in customer-facing infrastructure and data-related incidents. You will operate across the full technology stack, bridging strategic technical decisions with day-to-day execution in a production-critical environment.
This is a hybrid role based in Warsaw or Kraków, requiring 2–3 days per week on-site.
At Square One Poland we link IT experts with the business. With over 25 years of experience, we specialize in recruitment processes on a global scale. Despite years of experience, we still have a startup DNA and this is our advantage. Our offices are located in London and Warsaw, however, we can reach clients from all over the world, from start-ups to big worldwide corporations.