Oleksii Ignachuk
Lead Software Engineer at Ryght
Kyiv, Ukraine
Summary
👤
Senior🎓
Top SchoolOleksii Ignachuk is a Lead Software Engineer based in Kyiv with 11 years of hands-on experience building backend systems and distributed services. He has deep Java expertise demonstrated by long tenures at CyberVision and contributions to the OpenPDF library, where he improved null safety, generics, and overall code quality of a widely used open-source PDF toolkit. Oleksii has led projects and teams across startups and consultancies, and currently holds leadership roles at Genius Match and Finch AI while advising Ryght. His technical breadth spans messaging systems (RabbitMQ, Kafka, MQTT), multiple databases (Redis, Cassandra, ElasticSearch, InfluxDB), Spring and Akka ecosystems, and deployment tooling—skills he pairs with pragmatic project delivery. Known for meticulous refactoring and reliability-focused work, he also brings an operator’s mindset from earlier Linux sysadmin duties, which helps him bridge development and production needs.
11 years of coding experience
13 years of employment as a software developer
Igor Sikorsky Kyiv Polytechnic Institute
Ukrainian, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (6)
pdf-generation10
javas10
openpdf10
pdf10
itext10
java10
Programming languages (10)
Github contributions (5)
LibrePDF/OpenPDF
Mar 2019 - Apr 2019
OpenPDF is an open-source Java library for creating, editing, rendering, and encrypting PDF documents, as well as generating PDFs from HTML. It is licensed under the LGPL and MPL.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 commits, 7 PRs, 12 comments in 6 days
Contributions summary:Oleksii's commits primarily focus on improving the null safety, code formatting, and overall code quality of the OpenPDF library. They addressed deprecated calls, migrated raw types to generics, and refactored code to enhance readability and maintainability. These changes include modifications to core classes, indicating a deep understanding of the library's internal workings and a commitment to its ongoing development. The commits demonstrate a focus on improving the reliability and maintainability of the Java-based PDF library.
javalgplopenpdfpdf-documentrendering
Kindrat/cassandra-client
Jul 2017 - Oct 2020
Cassandra 3 GUI client
Contributions:28 commits, 63 pushes, 3 branches in 3 years 3 months
cassandracassandra-databasejavajava-clientdesktop-application
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