João Guerreiro is a Python backend engineer with nine years of experience building scalable production systems across startups and tech companies, currently contributing at Reddit from Ireland. His career includes senior engineering roles at Squarespace and 15Five, where he focused on backend architecture and operational reliability. He brings practical blockchain experience from a Triller engagement, having built a private Hyperledger Fabric network and a Node.js REST API to integrate it. A lifelong learner who devours books and new frameworks, João blends hands-on implementation with continual upskilling and a pragmatic approach to shipping software.
9 years of coding experience
8 years of employment as a software developer
Bachelor's degree Computer Science, Bachelor's degree Computer Science at Universidade do Algarve
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João Guerreiro - Software Engineer at Reddit, Inc.