David Magalhães
Portugal, Brazil
Summary
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SeniorDavid Magalhães is a backend software engineer based in Porto with 12 years of experience, specializing in Elixir-driven APIs and distributed systems. His career spans blockchain integrations, ETL and data-processing work, and production-grade distributed APIs built with Phoenix and Riak Core. A former application security analyst, he brings practical security expertise to software design and deployment, helping teams ship safer systems. He has implemented blockchain and interledger components, contributed to zkSync support in Viem, and adapted open-source storage blockchains for different crypto-economic behaviours. Outside work he channels discipline from competitive 400m running into reliable, performance-minded engineering. Active in the Elixir community, he shares writing, talks, and code under the handle speeddragon.
12 years of coding experience
Stackoverflow
802reputation
98kreached
26answers
20questions
Github Skills (175)
testing10
abi10
hex10
cybersource10
push-notifications10
firefox10
sdk10
elixir10
wagmi10
android10
amazon10
ios10
pdf10
aws10
chrome10
Programming languages (15)
Github contributions (5)
coletiv/cybersource-sdk
Dec 2017 - May 2019
Elixir module to provide interface with CyberSource SOAP API
Contributions:44 commits, 27 PRs, 24 pushes in 1 year 5 months
cybersourceelixirsoapsoap-apipayment-processing
speeddragon/recaptcha-extractor-automator
Jun 2018 - Dec 2022
Contributions:21 commits, 13 pushes, 3 branches in 4 years 7 months
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