Ulf Karlsson
Member Of Technical Staff at Stealth Startup
Greater Stockholm Metropolitan Area Sweden
Summary
👤
Senior🎓
Top SchoolUlf Karlsson is a Member of Technical Staff with 11 years of experience designing reliable, large-scale infrastructure for companies from Spotify to AI startups in the Greater Stockholm area. He has a strong track record building platforms from 0→1—everything from databases, storage and PG queries to API types, authentication, security and compliance. At Spotify he scaled video delivery and event pipelines for 100M+ users, combining backend Java services, Cassandra storage models and data engineering with Google Dataflow. Comfortable across languages and layers, his early work spans real-time Linux frameworks, C/C++ controllers and Python-based tooling, reflecting deep systems-level expertise. Colleagues describe him as pragmatic and detail-oriented, able to translate complex operational constraints into resilient, production-ready architectures.
11 years of coding experience
17 years of employment as a software developer
Master of Science (M.Sc.), Mathematics and Computer Science, Master of Science (M.Sc.), Mathematics and Computer Science at University of Gothenburg
Swedish, English, Spanish
Github Skills (147)
realtime10
python10
peer-to-peer10
jooq10
collaborative-editing10
dependency-resolution10
code-generator10
yjs10
sql10
batch10
luigi10
java10
sql-formatter10
ddl9
sql-query9
Programming languages (8)
Github contributions (5)
ukarlsson/eos-clion-example
Mar 2018 - Apr 2018
Contributions:16 commits, 11 pushes, 1 branch in 1 month
ukarlsson/ffwd
Apr 2015 - May 2015
Contributions:28 pushes in 15 days
agentobservabilityforwardingprometheusmetrics
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