Stéphane Maarek
Online Instructor at DataCumulus
Portugal
Summary
🤩
Rockstar🎓
Top SchoolStéphane Maarek is an entrepreneur, engineer and educator with nine years’ experience building and scaling data streaming products and training millions of engineers worldwide. As co-founder of Conduktor he helped raise $22M to build a best-in-class Apache Kafka platform and led engineering contributions around connector development and Kafka security testing. He is the #1 Udemy Business instructor with 1.5M+ students globally, teaching AWS and Kafka while running DataCumulus to deliver professional training at scale. Hands-on in back-end, DevOps and testing, Stéphane’s open-source work includes Kafka connectors, a GitHub-source Kafka Connect connector and robust Scala tests for Kafka ACL management. An angel investor and former consultant, he blends rigorous applied math education with product-minded engineering to spot overlooked problems and turn them into practical, high-impact solutions. Based in Portugal, he frequently combines travel and teaching to stay close to his global learner community.
9 years of coding experience
1 year of employment as a software developer
Master's degree, Applied Mathematics, Engineering, 3.8, Master's degree, Applied Mathematics, Engineering, 3.8 at CentraleSupelecMaster of Engineering (M.Eng.), Operations Research, 4.0, Master of Engineering (M.Eng.), Operations Research, 4.0 at Cornell University
English, French
Stackoverflow
5,282reputation
559kreached
24answers
138questions
Github Skills (37)
unit-testing10
api-rest10
kafka-connect10
github10
back-end-development10
api-design10
restful-api10
testing10
sourcelink10
acl10
kafka10
java10
scala10
javas10
go10
Programming languages (18)
Github contributions (5)
simplesteph/grpc-go-course
Jul 2018 - Jan 2022
Companion Repository for my gRPC Golang course
Role in this project:
Back-end Developer
Back-end DeveloperContributions:2 reviews, 42 commits, 15 PRs in 3 years 7 months
Contributions summary:Stéphane primarily focused on implementing gRPC services for a calculator application. They developed the necessary protobuf definitions, including request and response messages. Furthermore, the user built both the server-side and client-side components, showcasing a strong understanding of gRPC communication and service implementation in Go. The commits demonstrate a focus on creating the core functionalities of the calculator service, including unary and streaming RPCs.
golangcompaniongrpcgrpc-go
conduktor/kafka-security-manager
Mar 2018 - Jan 2022
Manage your Kafka ACL at scale
Role in this project:Backend Developer & QA Engineer
Backend Developer & QA EngineerContributions:18 releases, 12 reviews, 131 commits in 3 years 10 months
Contributions summary:Stéphane primarily focused on adding tests and integration within the repository, contributing to the overall testing strategy. They developed unit and integration tests for core functionalities, specifically within the `AclSynchronizer` and `CsvParser` components. Their work involved writing Scala code for testing, demonstrating a focus on improving code quality and ensuring the reliability of the Kafka security manager.
brokerzookeeperksmsecuritydocker
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