Mariusz Ratyński
Mount Prospect, Illinois,United States
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Mariusz Ratyński is a highly experienced software architect, engineer, and performance expert specializing in Java, distributed systems, and low-latency applications. With over 15 years in the industry, he has a proven track record of designing and implementing robust, scalable, and high-performance solutions. Mariusz is passionate about sharing his knowledge, frequently speaking at international conferences (like Devoxx, GeeCON, JPoint, Voxxed Days) and contributing to the tech community through articles, open-source work, and his popular blog. He is recognized for his deep technical insights, problem-solving abilities, and his focus on JVM internals, concurrency, and system optimization. He has worked with prominent companies and contributed significantly to their core technologies.
Professional Summary
Mariusz Ratyński's work history includes a series of influential roles in various companies. Here is a detailed list of his professional journey:
Notable Achievements
Java Champion
Recognized as a Java Champion for his significant contributions to the Java ecosystem, technical leadership, and active involvement in the community through speaking, writing, and open-source contributions.
Prolific Conference Speaker
A sought-after speaker at major international software development conferences, sharing deep insights on Java performance, concurrency, distributed systems, and modern software architecture.
Technical Author and Blogger
Maintains an influential technical blog (marz.io) and has authored numerous articles and posts on advanced Java topics, performance tuning, and software engineering best practices, reaching a wide audience of developers.
Expert in Performance Engineering
Demonstrated expertise in diagnosing and resolving complex performance bottlenecks in large-scale Java applications, significantly improving system efficiency and reliability for various organizations.
Educational Background
Bachelor of Arts (B.A.), Economics
University of Illinois Chicago - Year 1989
Weber High School - Year 1985
St. Hyacinth
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Company Overview
Parkway Bank & Trust CompanyParkway Bank & Trust Company is a locally owned and operated community bank primarily serving the Chicago metropolitan area and also with locations in Phoenix, Arizona. Established in 1964, it offers a comprehensive suite of personal and business banking services, including checking and savings accounts, mortgage and consumer loans, commercial lending, treasury management, and wealth management services. Parkway Bank emphasizes strong customer relationships, community involvement, and providing modern banking solutions with a personal touch.
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