João Vortmann
Staff Software Engineer at Koala
Rio Grande do Sul, Brazil
Summary
👤
Senior🎓
Top SchoolJoão Vortmann is a Staff Software Engineer based in Rio Grande do Sul, Brazil, with 16 years of experience building and evolving large-scale platforms, especially in video ingest/encoding and cloud-native pipelines. He blends hands-on engineering (Ruby on Rails, Elixir/Phoenix, Docker/Kubernetes) with architectural leadership—extracting services from monoliths, improving delivery velocity, and optimizing encoding quality via experiments like VMAF. João has led teams at Globo.com and Doximity, driven hiring and mentoring, and helped make encoding pipelines elastic to improve hardware utilization. His background in H.264 research and FPGA work underscores a rare depth in video compression theory and implementation that informs practical production improvements.
16 years of coding experience
18 years of employment as a software developer
Bachelor Computer Science, Bachelor Computer Science at Universidade Federal de PelotasMaster Computer Science - Artificial Intelligence, Master Computer Science - Artificial Intelligence at Federal University of Rio Grande do Sul
English, Portuguese, German, Spanish
Github Skills (118)
vimscript10
build-automation10
client-library10
api10
continuous-integration10
rails-api10
apache-kafka10
activemodel10
docker10
librdkafka10
continuous-delivery9
rest9
ruby9
bash9
rest-api9
Programming languages (10)
Github contributions (5)
jvortmann/vim-files
Sep 2010 - Jan 2023
Vim can rock even more
Contributions:811 commits, 2 PRs, 152 pushes in 12 years 6 months
vimrockvim-pluginneovimviml
thoughtworks/voto-como-vamos
Aug 2012 - Nov 2012
Contributions:51 commits in 2 months
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