Fräntz Miccoli
COO - CTO & Co-founder at Nexvia Luxembourg
Luxembourg
Summary
👤
Senior🎓
Top SchoolFräntz Miccoli is a hands-on CTO and operator with 13 years of experience building fintech and consumer products from idea to market, currently serving as COO–CTO and co-founder of Nexvia in Luxembourg. He blends product, brand and growth sensibilities with deep technical execution across React, Laravel, Docker and AWS, often owning anything users touch before adviser interactions. A pragmatic engineer and mentor, he has run operations, compliance-facing SaaS, automation and ML/data projects while participating in Y Combinator’s Startup School. Fräntz is also an active open-source contributor—his work on PHPOffice/PhpSpreadsheet improved Excel-compatible lookup functions and test coverage, surfacing a focus on correctness and edge-case behavior. He has founded and scaled multiple startups, taught data- and innovation-focused seminars, and holds engineering and business master’s credentials that inform both strategy and execution. Notably, he pairs product marketing instincts with low-level implementation skills, meaning brand decisions and CI/CD pipelines are equally familiar territory.
13 years of coding experience
13 years of employment as a software developer
Master of Engineering - MEng Engineering applied to data science and operations research, Master of Engineering - MEng Engineering applied to data science and operations research at CY TechMaster of Science - MS Economy & management, Master of Science - MS Economy & management at Grenoble Ecole de ManagementStartup School OnlineMaster's degree Business Administration and Management, Master's degree Business Administration and Management at University of Pau and Adour Countries
French, English, Italian, Spanish, German
Github Skills (9)
unit-testing10
debug10
php10
bugtracking10
testing9
excel9
algorithms8
algorithm8
phpunit8
Programming languages (11)
Github contributions (5)
PHPOffice/PhpSpreadsheet
Nov 2018 - Sep 2019
A pure PHP library for reading and writing spreadsheet files
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:8 commits, 8 PRs, 38 comments in 10 months
Contributions summary:Fräntz contributed to the core functionality of the `phpspreadsheet` library, specifically focusing on enhancing the LOOKUP, VLOOKUP, HLOOKUP, and MATCH functions. Their work involved implementing new features, fixing bugs related to data retrieval and matching, and ensuring compatibility with Excel behavior. They also created and updated test cases to validate the functionality of these spreadsheet functions, improving the library's reliability. The commits also introduced branch pruning to the IF function to optimize code execution.
xlsxxlslibreofficephpexcelods
frantzmiccoli/drkns
Aug 2020 - May 2021
Contributions:63 commits, 72 pushes, 2 branches in 8 months
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