Bárbara Markus
Software Engineer at Amazon
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolBárbara Markus is a backend-focused software engineer with 8 years of experience building and optimizing enterprise applications, now contributing at Amazon after impactful roles at Luma Health and Aurora. She specializes in Node.js, JavaScript, PostgreSQL, Redis, MongoDB and message-driven systems (RabbitMQ), and has a rare blend of modern backend expertise and legacy system mastery from extensive Delphi and PL/SQL work. At Luma Health she led a real-time audit overhaul that cut logging time tenfold and implemented features that handled thousands of data points in under a minute, demonstrating both systems thinking and delivery under pressure. She consistently drives measurable efficiency improvements—e.g., shrinking Twilio integration from 30 to 5 minutes and improving PL/SQL query performance by 30%—and maintains a strong focus on test coverage and maintainability. Based in São Paulo, she pairs collaborative team work with a pragmatic engineering mindset and a playful hacker spirit (there’s no place like 127.0.0.1).
9 years of coding experience
4 years of employment as a software developer
Bacharelado, Computer Science, Bacharelado, Computer Science at UFFS - Universidade Federal da Fronteira Sul
English
Github Skills (3)
scrollspy6
bootstrap3
css3
Programming languages (3)
Github contributions (5)
barbs-pm/ResumosCienciaDaComputacao
Sep 2019 - Feb 2022
Contributions:9 commits, 8 pushes, 1 branch in 2 years 5 months
barbs-pm/barbs-pm.github.io
Feb 2018 - Jun 2022
Contributions:33 pushes, 1 branch in 4 years 4 months
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