Michal Kuffa
Site Reliability Engineer at Sentry
Austria
Summary
🤩
Rockstar🎓
Top SchoolMichal Kuffa is a Site Reliability Engineer based in Austria with 14 years of hands-on experience building and operating resilient, production-grade systems. He has progressed from Unix systems administration to leading DevOps teams and now focuses on reliability at Sentry, contributing directly to the backend ingestion and Celery task queue improvements of a high-profile open-source error monitoring platform. His background blends Python-centric DevOps, Redis and locking optimizations, and practical feature work in Django admin extensions, reflecting both infrastructure and application-level expertise. Known for pragmatic refactors and instrumentation that reduce operational friction, he brings a track record of shipping durable, observable systems across startups and enterprise teams.
14 years of coding experience
7 years of employment as a software developer
Slovak University of Technology in Bratislava
Github Skills (20)
sentry10
python10
back-end-development10
django10
celery10
redis9
error-logging9
error-log9
rest-api8
performance-tuning8
performance-analysis8
performance-measurement8
performance-monitor8
performance-analytics8
api-rest8
Programming languages (10)
Github contributions (5)
getsentry/sentry
Apr 2020 - Nov 2022
Developer-first error tracking and performance monitoring
Role in this project:
Back-end Developer
Back-end DeveloperContributions:253 reviews, 108 commits, 239 PRs in 2 years 7 months
Contributions summary:Michal primarily contributed to back-end code changes related to the Sentry platform's internal workings. Their commits focused on refactoring and modifying the Celery task queue, including implementing a new queue for buffering increment operations. Additionally, the user worked on the ingest pipeline, splitting the save event task for attachments and adding instrumentation for process_incr tasks. They also touched areas related to locking mechanisms and Redis cache configurations.
monitorpythonsentrydjangoerror-monitoring
jazzband/django-admin2
Jul 2013 - Jul 2013
Extendable, adaptable rewrite of django.contrib.admin
Role in this project:Back-end Developer
Back-end DeveloperContributions:12 commits in 1 day
Contributions summary:Michal primarily contributed to the `django-admin2` project by adding and modifying features related to list filters. They implemented the `build_list_filter` method and created a `djadmin2.filters` module for handling list filter creation. Their work included the creation of custom widgets and filter sets, and the integration of these features into the admin interface. They also added and modified templates and example code for list filtering, and added unit tests for the new functionality.
contribpythonadmindjangoextendable
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