Jonathan Winandy
Lead Data Engineer Auditor Trainer
France
Summary
👤
Senior🎓
Top SchoolJonathan Winandy is a Lead Data Engineer, auditor, and trainer with 15 years of experience building resilient data platforms and coaching teams across Europe through his consultancy Univalence. He specializes in functional and reactive Scala ecosystems (Akka, ZIO, Cats-Effect), large-scale stream and batch systems (Spark, Kafka, Flink, ClickHouse), and JVM performance tuning, and brings hands-on DevOps and microservices expertise to production-grade architectures. As an active Scala community organiser and 2024 Scala Ambassador, he couples technical leadership with community-driven R&D to define data engineering standards. His open-source contributions include cross-version support and performance improvements to the seminal ZIO library, reflecting deep practical knowledge of async/concurrent programming. Jonathan also has a startup background in IoT and eHealth platforms, where he led architecture and embedded-to-cloud data solutions, showing a rare end-to-end fluency from hardware to analytics. He is based in France and offers remote or on-site consulting, audits, and training to help organizations reduce costs and operational risk while accelerating delivery.
15 years of coding experience
7 years of employment as a software developer
Master of Engineering (M.Eng.), Computer Science, Software Engineering, Finance, Master of Engineering (M.Eng.), Computer Science, Software Engineering, Finance at Centrale Nantes
French, English
Stackoverflow
1,749reputation
60kreached
20answers
11questions
sbt
top-5%
scala
top-5%
Github Skills (15)
asynchronous10
concurrent-programming10
zio10
functional-programming10
async10
scala10
concurrency9
sbt9
stream9
oop6
scalaz6
slick6
php6
text-comparison6
lisp6
Programming languages (9)
Github contributions (5)
zio/zio
Mar 2019 - Jun 2020
ZIO — A type-safe, composable library for async and concurrent programming in Scala
Role in this project:
Back-end Developer
Back-end DeveloperContributions:10 commits, 17 PRs, 105 comments in 1 year 2 months
Contributions summary:Jonathan primarily focused on supporting Scala 2.11 compatibility within the ZIO project, addressing compile errors and adjusting code to ensure cross-version compatibility. They modified core modules like `random`, `clock`, `console`, and `system` to accommodate Scala 2.11 constraints. Furthermore, the user contributed to stream functionality by introducing a `toIterator` function, as well as refactoring and optimizing core functionalities, like `Chunk.apply`. They also addressed other performance-related tasks like improving the `Chunk.apply` method.
asyncconcurrent-programmingscalatypesafezio
univalence/centrifuge
Sep 2015 - Mar 2019
Data quality tools for Big Data
Contributions:41 commits, 2 PRs, 34 pushes in 3 years 6 months
big-data
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