Richard Kojedzinszky
Freelance Information Technology Consultant
Szeged, Hungary
Summary
👤
Senior🎓
Top SchoolRichard Kojedzinszky is a seasoned IT consultant and DevOps engineer with over two decades of hands-on experience modernizing ISP and enterprise infrastructures, currently focusing on on-premise Kubernetes deployments and service migrations. He has led technical operations teams, containerized legacy applications, implemented high-availability systems and CI/CD pipelines, and continues to mentor engineers while running freelance engagements. His open-source contributions include backend performance and data-validation improvements to the widely used TrueNAS middleware and database optimizations for LibreNMS, reflecting a strong practical grasp of storage, monitoring and SQL tuning. Known for hunting elusive bugs and reproducing complex issues, he combines low-level system knowledge (DHCP, RADIUS, mail, DNS, routing) with Kubernetes operator development in both Ansible and Go. Based in Szeged, Hungary, he blends pragmatism and stakeholder negotiation to deliver optimal, reliable solutions for demanding production environments.
11 years of coding experience
1 year of employment as a software developer
High School, High School at Déri Miksa Ipari SzakközépMaster's degree, Computer Software Engineering, Software Engineer, Master's degree, Computer Software Engineering, Software Engineer at University of Szeged
English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (28)
database-migrations10
back-end-development10
python10
mysql10
iscsi10
storage10
schema-design10
indexing10
php10
indexer10
sql10
zfs10
database-design10
nas10
db-schema10
Programming languages (15)
Github contributions (5)
truenas/middleware
Feb 2021 - Dec 2022
TrueNAS CORE/Enterprise/SCALE Middleware Git Repository
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 reviews, 12 commits, 28 PRs in 1 year 9 months
Contributions summary:Richard primarily contributed to the back-end logic of the TrueNAS middleware, focusing on improving iSCSI and dataset-related operations. Their work involved optimizing API performance by speeding up critical operations, skipping unnecessary service reloads, and handling SQL filters more efficiently. They also addressed issues related to service queries and fixed potential problems with data validation, resulting in more robust and performant code within the TrueNAS ecosystem.
enterprisenfsiscsigit-repositorytruenas
librenms/librenms
Mar 2020 - Mar 2021
Community-based GPL-licensed network monitoring system
Role in this project:Database Engineer / Database Administrator
Database Engineer / Database AdministratorContributions:5 reviews, 3 commits, 18 PRs in 11 months
Contributions summary:Richard primarily contributed to database schema modifications and optimizations within the LibreNMS project. Their work involved adding primary keys to various database tables, addressing issues related to missing keys and improving compatibility. They also refactored indexes on the `alert_log` table and rewrote the daily alert_log query to leverage the new indexes for improved performance.
snmpcommunity-basedlicensedgplphp
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