Willian Bretzke
Senior Software Engineer at takenet
Guabiruba, Santa Catarina, Brazil
Summary
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SeniorWillian Bretzke is a software engineer with 5 years of experience building scalable web platforms and automation, specializing in React, Next.js, Node.js and C#. He has a track record of measurable performance wins—optimizing a micro front-end to cut load time from 20s to under 3s and redesigning freight and payment flows to reduce processing by over 80%. As founder of VelloChat he designed a multi-tenant, event-driven SaaS integrated with the WhatsApp Business API, combining product strategy with hands-on engineering. He’s experienced with high-throughput systems (50M DB ops/hour), observability and async processing using Redis, RabbitMQ and AWS services. Based in Santa Catarina, Brazil, he pairs technical depth with clear communication, translating complex integrations into business value. Currently pursuing postgraduate specialization in Full Stack Development and AI, he blends practical production experience with ongoing study of modern architectures.
5 years of coding experience
Github Skills (14)
react8
laravel8
tailwindcss8
nextjs7
vite7
css6
tailwind6
ui-components5
radix-ui4
shadcn-ui4
tanstack3
react-component-library2
react-aria1
radix1
Programming languages (2)
Github contributions (5)
bretzke/blip-spreadsheets-to-json
Jan 2022 - Mar 2022
Contributions:25 commits, 9 PRs, 22 pushes in 2 months
bretzke/my-website
Nov 2024 - Apr 2026
Contributions:21 pushes in 1 year 4 months
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