Olivier Bertrand
Software Engineer
Rennes, Brittany, France
Summary
👤
Senior🎓
Top SchoolOlivier Bertrand is a versatile software engineer based in Rennes with 10 years of experience building backend and big data systems using Java 8, Apache Spark and NodeJS. He has moved between hands-on development and technical leadership—driving a Java payroll migration and growing teams from 5 to 40 at CGI, and coordinating a DevOps-backed backend team for Lacoste’s e-commerce mobile app. Olivier pairs data-focused engineering (ETL, Spark, DB2) with practical DevOps and CI/CD experience across Azure and GitLab/Jenkins pipelines, and often mentors and trains junior engineers. He contributes publicly on GitHub and favors pragmatic solutions—examples include building a Java-to-OWL prototype and an Antlr-based RPG-to-Java translator. Comfortable across full-stack, big data and operational concerns, he brings a track record of translating legacy systems into modern, testable architectures.
10 years of coding experience
9 years of employment as a software developer
Bachelor's degree, Software and Media Engineering, Bachelor's degree, Software and Media Engineering at Metropolia University, Helsinki, FinlandLicence MIAGE (equivalent to Bachelor), Information Technology applied to Management, Licence MIAGE (equivalent to Bachelor), Information Technology applied to Management at UFR – Mathématiques & Informatique - Nancy, FranceDUT Informatique (equivalent to technical degree), Information Technology, DUT Informatique (equivalent to technical degree), Information Technology at IUT CharlemagneMaster 1, Information Technology, Master 1, Information Technology at Faculte de Science - Nantes, FranceA - level, Sciences and Engineering, A - level, Sciences and Engineering at Lycée Yves Thépot, Quimper, France
French, English, Spanish, Hungarian
Github Skills (27)
currency9
java7
cryptocurrency7
ethereum7
xml7
crypto7
spark4
spark-sql4
dataframes4
scala4
api4
sql4
ipfs3
spreadsheet2
converting2
Programming languages (2)
Github contributions (5)
Bertrandbenj/juniter
Jun 2018 - Jan 2020
Juniter, a java implementation of the duniter protocol handling the ğ1 crypto currency
Contributions:2 releases, 197 commits, 4 PRs in 1 year 7 months
duniterethereumcryptocurrencycryptocurrency
Bertrandbenj/cv
Aug 2017 - Jul 2019
Contributions:45 pushes in 1 year 11 months
hostjekyll-theme-minimaljekylljekyll-themecv-resume
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