István Karaszi
Chief Technology Officer at Marketer.com
Budapest, Hungary
Summary
🤩
Rockstar🎓
Top SchoolIstván Karaszi is a seasoned technology leader and hands-on CTO based in Budapest with 15 years of experience building high-performing engineering teams and scalable systems. He combines a founder’s mindset—currently leading Marketer.com and founding Function Artisans—with deep technical craft demonstrated in production-grade contributions to projects like the popular Redis Java client (jedis) and node-tmp utilities. Known for championing small, highly committed agile teams, he leads by example, refactoring legacy code, improving efficiency, and reducing dependencies to raise overall code quality. His background spans senior engineering and director roles at companies such as Whitepages and Ekata, plus early work building low-latency ad systems and data solutions, reflecting strong expertise in backend engineering and operational systems. Trained as an electrical engineer, he brings both rigorous technical discipline and a pragmatic focus on hiring the right people and fostering a collaborative engineering culture.
15 years of coding experience
18 years of employment as a software developer
Msc, Electrical engineering, Msc, Electrical engineering at Budapest University of Technology and Economics
Hungarian, English
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Github Skills (49)
filesystem10
javascript10
redis10
jedi10
redis-client10
file-operations10
java10
ruby10
javas10
php10
fileio10
nodejs10
ruby-on-rails10
mysql9
testing9
Programming languages (17)
Github contributions (5)
raszi/node-tmp
Sep 2011 - Oct 2022
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 reviews, 286 commits, 79 PRs in 11 years 3 months
Contributions summary:István's contributions primarily involve refactoring and dependency management within the node-tmp project, aimed at creating temporary files and directories for Node.js applications. The user dropped an 'underscore' dependency, cleaned up code for better readability, and improved documentation. Further enhancements include implementing an 'mkstemps' like file creation template and introducing a 'keep' option, enhancing file handling capabilities.
node-jsjavascriptcreatorfilesystemnodejs
redis/jedis
Sep 2010 - Sep 2011
Redis Java client
Role in this project:Back-end Developer
Back-end DeveloperContributions:6 commits in 1 year
Contributions summary:István primarily focused on improving the codebase of the Redis Java client. Their contributions included fixing autoboxing issues, correcting return types in several methods, and streamlining the connection logic. The user also refactored the code by removing unnecessary instantiations, such as making `Protocol` methods static to improve efficiency and readability. These changes demonstrate a focus on code quality, efficiency, and correcting potential bugs in the library.
redisredis-clientredis-clusterredis-javaredisearch
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