Summary
Marcin Świerczyński is a Staff Software Engineer with over 14 years of hands-on experience building enterprise-grade systems, currently shaping architecture and teams at Vonage. He brings deep expertise in Enterprise Java, Spring Boot, Micronaut, microservices and event-driven platforms (Kafka), complemented by strong background in Python, Grails/Groovy and mobile (Swift/Objective-C) development. Passionate about object-oriented design and highly scalable databases, he practices Software Craftsmanship to deliver maintainable, production-ready solutions. Marcin has a track record of technical leadership roles—from leading Silesia JUG to heading development and architecting systems at fintech and security startups—where he mentors engineers and bridges product with engineering. Based in Katowice, he blends practical backend systems design with frontend and mobile experience, and is known for rapid learning and a genuine love of programming across languages like JavaScript, V and PHP.
14 years of coding experience
14 years of employment as a software developer
master's Computer Science: Software engineering and databases, master's Computer Science: Software engineering and databases at Polish-Japanese Academy of Information Technology
English, Polish