Built to Last: How Kosta Terziski Embodied Cosmic’s Values for a Decade

When someone stays with a company for a full decade, it speaks volumes about their dedication, the culture they’ve helped shape, and the value they continue to bring. We’re proud to celebrate Kosta Terziski’s 10-year anniversary at Cosmic Development this year. From his early days in manual testing to leading QA efforts on a long-term client project, Kosta’s journey has…

From Beginner to Pro: What it is like to be QA Engineer in Cosmic Development

Although some software companies take QA lightly and don’t have QA engineers in their development team, Cosmic Development is quite the opposite. We recognize the true value of quality assurance and believe that building high-quality, stable, and safe products for our clients requires a competent QA engineer.Ā For that reason, today, we spotlight our talented Quality Assurance (QA) Engineer, Kosta Terziski, and discuss the details of his journey, day-to-day tasks, and advice he would offer to aspiring QA professionals.Ā 

Cosmic Development logo-white-nobg
  • Our People are our Greatest Asset
  • We Build Winning Teams for Brands
  • Dedicated Employees, Top-Notch Teams, Unmatched Assets.

Cosmic Development© 2025. All Rights Reserved.