Cássio Marques
Senior Software Engineer at GitHub
Nottingham, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolCássio Marques is a Senior Software Engineer with around 17 years of professional experience and two decades of hands-on software development across health services, e-commerce, FinTech, EdTech and SaaS. He combines product-focused thinking with deep technical leadership, having designed the migration from a large Elixir monolith to a distributed, polyglot, event-driven architecture used by 50+ engineers. His work spans Elixir, Ruby, Python, TypeScript and cloud platforms, and includes building cross-language libraries that standardise RabbitMQ usage, an automated coach-allocation engine, and SSO/SaaS platforms. Cássio has led large-scale platform projects at Funding Circle and Multiverse and now continues shaping infrastructure and delivery at GitHub from Nottingham. A pragmatic architect and mentor, he gravitates toward simplifying complex systems so big teams can move fast without accruing technical debt.
18 years of coding experience
20 years of employment as a software developer
Bachelor's degree Scientific Computing, Bachelor's degree Scientific Computing at Universidade de Taubaté
English, Portuguese
Stackoverflow
11reputation
484reached
0answers
1question
Github Skills (59)
enumeration10
rails10
ruby10
ruby-kafka10
ueberauth9
ruby-on-rails8
kafka8
expect8
kafka-consumer8
dsl8
authorization7
authentication7
elixir7
oauth7
phobos7
Programming languages (7)
Github contributions (5)
cassiomarques/dotfiles
Oct 2019 - Mar 2026
Contributions:24 pushes in 6 years 6 months
cassiomarques/booleanize
Nov 2008 - May 2015
Contributions:26 commits, 1 push in 6 years 6 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.