Guilherme Donato
Senior Software Engineer at Byborg Enterprises
Grevenmacher, Luxembourg
Summary
👤
Senior🎓
Top SchoolGuilherme Donato is a senior backend engineer with a BSc in Computer Science and nearly two decades of experience designing and scaling high-performance, secure backend systems. He excels at optimizing revenue-critical APIs—recently cutting core API load by 60% and improving response times 5x—and has a strong track record hardening platform security and mentoring teams. Comfortable both leading cross-functional groups and returning to hands‑on delivery, he’s shipped government-grade authentication and large-scale voting platforms as well as long-lived media processing pipelines. A pragmatic polyglot in the PHP/Symfony ecosystem, he pairs deep expertise in PostgreSQL/MySQL, Redis, RabbitMQ and Docker with an API-first mindset focused on maintainability. He’s also a tinkerer who experiments with home automation and self-hosting in a home lab, which informs practical choices for reliability and operational simplicity. Known for extending the life of legacy services when appropriate and planning safe retirements when not, he thrives on high-stakes, tightly timed projects.
12 years of coding experience
12 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Pontifícia Universidade Católica do Rio Grande do Sul / PUCRS
English, Portuguese
Stackoverflow
89reputation
7kreached
3answers
0questions
Github Skills (101)
chat10
voting-system10
collaboration10
javascript10
rio10
java10
slack10
webrtc10
projeto10
bundle9
data-protection9
fineuploader9
dropzone9
plupload9
react-native9
Programming languages (8)
Github contributions (5)
PROCERGS/login-cidadao
Dec 2013 - Feb 2019
Projeto Login Cidadão
Contributions:68 releases, 3586 commits, 497 PRs in 5 years 2 months
javaprojeto
guilhermednt/game
Feb 2016 - Nov 2020
Contributions:23 pushes, 1 branch in 4 years 10 months
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