Building High-Performance Tech Teams In 2025: A Practical Scaling Guide
Techstrong.IT, Wednesday, April 23rd, 2025
Scaling an engineering team is one of the most critical-and risky-phases for any startup. Do it right, and you build a solid foundation for innovation and growth. Do it wrong, and you create silos, slowdowns and cultural fragmentation.
In 2025, successful scaling isn't about hiring as fast as possible-it's about scaling intentionally, with structure, flexibility and purpose. Few have done this better than Nikolay Mironenko, co-founder and director of engineering at Moss, an European fintech platform offering smart expense management and corporate credit cards.
Under Mironenko's leadership, Moss grew its engineering team from 5 to over 50 engineers across multiple locations-including building a thriving 20-person R&D center in Tallinn, Estonia-while maintaining velocity, ownership and strong product delivery culture.
Here are some real-world insights and actionable lessons from Moss' journey that founders, CTOs and engineering leaders can apply in 2025.