Scala Days 2026

Pavel Kozlov

I am a software engineer with more than 15 years industry experience, including over 10 years working with Scala in production systems and enterprise environments. Worked at Evolution Gaming, Paddy Power Betfair (now Flutter Entertainment), Twilio, Workday, currently at MongoDB. Over my career, have seen how both object-oriented and functional approaches behave in large-scale real-world systems, and how architectural choices shape long-term complexity.


Company/Organisation:

MongoDB

Job Position:

Senior Software Engineer


Session

10-12
11:20
30min
How OOP Earned Our Trust and Let Us Down
Pavel Kozlov

Object-oriented programming helped shape modern software engineering — but also gave us shared mutable state, fragile hierarchies, and accidental complexity. Using real Scala adoption stories, this talk explores why legacy OOP thinking fails and how functional principles help teams build simpler systems.

Palais Atelier