Donny Wiesenfeld

Nicolas Frankel

Developer Advocate at Hazelcast

Developer Advocate with 15+ years experience consulting for many different customers, in a wide range of contexts (such as telecoms, banking, insurances, large retail and…

Jacek Spólnik

Lead Software Engineer in Revolut Poland

Jacek Spólnik joined Revolut in November 2018 and took the position of a lead software engineer in Poland. In Revolut he is responsible for developing…

Raul Raja

CTO & Co-Founder at 47 Degrees, Arrow Maintainer

Functional programming enthusiast. Self driven software engineer with strong backend Scala experience. Creative problem solving. Design Patterns knowledge. Always looking to try the latest in…

Paweł Kamiński

Software Engineer in Platform at Casumo

For the last couple of years, I’ve been working on a real-time bidding platform which introduces many architectural, scale and performance-related problems. Even though I…