Kristijonas Ž
Senior Software Engineer at Uber
Sunnyvale, California, United States
Summary
🤩
Rockstar🎓
Top SchoolKristijonas Ž is a Senior Software Engineer based in Sunnyvale with a decade of experience building and securing large-scale data infrastructure. At Uber he designed and rolled out a ClickHouse access control system across 1.6k nodes with zero downtime, led cross-team hot-shard detection deployed to 40k database nodes, and migrated workloads from Hive to ClickHouse achieving a 12x latency improvement and 50% less disk usage. Comfortable in high-stakes, on-call environments, he has been the escalation point during major incidents and delivered auditable security solutions that passed external review. He blends practical performance tuning and schema optimization with operational rigor, and often drives solutions that reveal efficiency gains others may overlook.
9 years of coding experience
4 years of employment as a software developer
Bachelor's degree Computer Science with Industrial Experience, Bachelor's degree Computer Science with Industrial Experience at The University of Manchester
Github Skills (32)
extjs10
network-tools10
cassandra10
hackersuite10
http-header10
authentication10
apache10
java10
user-management10
osgi10
sling10
database10
hub9
typescript9
docker9
Programming languages (6)
Github contributions (5)
hackersuite/hs_auth
Jul 2019 - Nov 2020
Hacker Suite | Auth Service
Contributions:5 releases, 83 reviews, 661 commits in 1 year 4 months
user-managementsecurityauthenticationhackersuitejwt
hacksoc-manchester/2018-studenthack
Mar 2018 - Feb 2019
Contributions:42 commits, 1 PR, 25 pushes in 11 months
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