Guilherme Simas
Staff Software Engineer at Newfront
Rio de Janeiro, Brazil
Summary
👤
Senior🎓
Top SchoolGuilherme Simas is a Staff Software Engineer with 11 years of experience building scalable backend and cloud-native systems, currently leading architectural modernization and AI-enabled platform work at Newfront. He has deep hands-on expertise in Python, Spring Boot, AWS, MongoDB and ReBAC (SpiceDB), and a track record of improving reliability, latency, and developer experience across financial-services and payments platforms. Guilherme has led major migrations from monoliths to event-driven microservices, designed stress-testing and scalability tooling that enabled his teams to onboard their largest clients, and introduced CI/CD and infrastructure-as-code practices. He pairs technical leadership with mentorship, raising engineering standards while fostering high-trust teams that own outcomes. Based in Rio de Janeiro, he blends academic training from PUC-Rio and US engineering programs with practical experience across startups and larger firms. Notably, he’s driving agentic AI automation projects that bring contextual reasoning into routine servicing workflows, bridging infrastructure, backend, and AI systems.
11 years of coding experience
8 years of employment as a software developer
Bachelor of Engineering - BE, Computer Engineering, Bachelor of Engineering - BE, Computer Engineering at Illinois Institute of TechnologyPontifical Catholic University of Rio de JaneiroBachelor of Engineering - BE, Computer Engineering, 3.33, Bachelor of Engineering - BE, Computer Engineering, 3.33 at Rose-Hulman Institute of Technology
Github Skills (12)
binding8
arduino6
c-language4
compiler-optimization4
stack-based3
shieldsio2
programming-language2
latex2
compiler2
odin1
runner1
cicd1
Programming languages (4)
Github contributions (5)
guilhermesimas/trello-telecom-example
Jul 2017 - Oct 2022
Contributions:2 PRs, 1 push, 2 branches in 5 years 4 months
guilhermesimas/dotfiles
Jul 2018 - Jul 2023
Contributions:26 pushes, 8 branches in 5 years 1 month
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