Jakub Hajto
Founding Senior Elixir Engineer at Under NDA - AI space
Krakow, Lesser Poland Voivodeship
Summary
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Rockstar🎓
Top SchoolJakub Hajto is a Founding Senior Elixir Engineer with 11 years of hands-on experience building high-throughput, resilient systems and modernizing legacy stacks across fintech, gaming, and telecom domains. He specializes in Elixir but brings significant skill in Python, TypeScript, and Scala, and has a track record of cutting latency and reingestion times dramatically (e.g., reducing battle data reingestion from 1.5 days to 19 minutes). Jakub excels at untangling messy architectures—introducing observability, test automation, and migrations (Moebius→Ecto) to enable safer collaboration—and has led teams to adopt Broadway/Oban event processing at scale. He contributes to open-source multimedia tooling (Membrane Framework), improving testing utilities and pipeline ergonomics, and runs workshops to lift team capabilities in Elixir and React Native. Pragmatic and domain-focused, he prioritizes delivering measurable value to end customers and clients while navigating production constraints.
11 years of coding experience
10 years of employment as a software developer
Technik Informatyka, Technik Informatyka at Zespół Szkół ŁącznościInżynier (Inż.) Informatyka, Inżynier (Inż.) Informatyka at Politechnika Krakowska im. Tadeusza Kościuszki
Polish, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (6)
test-framework10
elixir10
test-automation10
testing10
streaming-api9
multimedia8
Programming languages (18)
Github contributions (5)
membraneframework/membrane_core
Dec 2018 - Jun 2020
The core of Membrane Framework, multimedia processing framework written in Elixir
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:48 commits, 12 PRs, 62 pushes in 1 year 6 months
Contributions summary:Jakub focused on enhancing the testing capabilities of the `membrane_core` repository, which is a multimedia processing framework. Their primary contribution involved adding a `TestingConfigurablePipeline` and modifying the `TestingSink` to automatically handle demands. They also refactored and improved various testing utilities, including assertions and source elements, and expanded the test suite for demands. This user demonstrates a strong understanding of the framework's internal workings through their focus on test-driven development and improving the overall testing infrastructure.
hevcaxish264hls-streammultimedia
membraneframework/membrane_rtsp
Feb 2019 - Aug 2020
RTSP client for Elixir
Contributions:48 commits, 2 PRs, 7 pushes in 1 year 5 months
rtspelixirrtsp-client
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