Marcel Nicolay
Co-Founder & CTO at HARUMI
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolMarcel Nicolay is a seasoned technology leader and payments expert with over 16 years building high-availability platforms and product teams across Brazil’s largest digital businesses. As Co-Founder & CTO of Malga (YC-backed) he led product and engineering from idea to PM-fit, drove API/SDK and PCI Level 1 efforts, and helped process over R$1bn TPV while raising $6.5M. His career spans senior roles at Zoop, iFood, Evino and Gympass where he shaped payment orchestration, banking-as-a-service and dynamic pricing systems supporting millions of users and mission-critical uptime. Marcel combines hands-on engineering (Python/Node, infra/AWS) with executive product strategy, having managed teams of 30–50 and led major migrations like PIX integrations with Brazil’s central bank. He’s also an early open-source maintainer (projects with +70 stars) and a founder of multiple AI and fintech ventures, reflecting a curiosity that extends into philosophy, travel and family life. Based in São Paulo, he now focuses on vertical AI and financial product advisory while continuing to build developer-first platforms.
16 years of coding experience
18 years of employment as a software developer
Y CombinatorEstácio de Sá University
English, Portuguese
Stackoverflow
36reputation
429reached
1answer
0questions
Github Skills (26)
encoder10
encoder-decoder10
relation10
decoder10
xml9
tornado7
python7
mongodb6
pymongo6
ups6
gridfs6
asynchronous6
non-blocking6
database5
rapid5
Programming languages (6)
Github contributions (5)
marcelnicolay/simplexml
May 2011 - May 2019
Simple and fast XML encoder/decoder for Python
Contributions:21 commits, 1 push, 1 comment in 8 years
pythonxmldecoderencoderencoder-decoder
marcelnicolay/asyncmongo-orm
Aug 2011 - May 2012
Asyncmongo-ORM is a object-relation mapping for asyncmongo
Contributions:67 commits in 8 months
mysqlsqlmappingdatabasepostgresql
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