Erik Van Velzen
DevOps at ZEnMO Simulations
Geldermalsen, Gelderland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolErik Van Velzen is a DevOps and full‑stack engineer with 13 years of experience building scalable backend systems and web applications across insurance, healthcare, automotive and decentralized storage. He has strong hands‑on experience in Clojure and Kotlin and has contributed to petabyte‑scale projects like Storj, where he optimized satellite metabase performance and improved object listing and deletion workflows. Currently at ZEnMO Simulations he focuses on reliable infrastructure and deployment practices, drawing on prior roles that blended development, DevOps and logging/SQL reporting. Comfortable across the stack, he combines backend data engineering with front‑end and API work and practical Scrum training. An understated strength is his knack for spotting and removing unnecessary data paths to reduce DB load — a recurring theme in his open‑source and enterprise contributions. Based in Geldermalsen, Netherlands, he brings pragmatic performance optimizations to complex distributed systems.
13 years of coding experience
8 years of employment as a software developer
Professional Scrum Master I, Professional Scrum Master I at Scrum
Stackoverflow
6,541reputation
1.8mreached
51answers
8questions
parsing
top-1%
json
top-1%
javascript
top-5%
Github Skills (25)
json10
go10
prototypes10
parsing10
database-design10
postgresql9
javascript9
sql9
distributed-file-system8
database-optimization8
apidoc8
api8
object-storage8
data-storage8
testing7
Programming languages (18)
Github contributions (5)
storj/storj
Aug 2021 - Jan 2023
Ongoing Storj v3 development. Decentralized cloud object storage that is affordable, easy to use, private, and secure.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:55 reviews, 96 commits, 15 PRs in 1 year 5 months
Contributions summary:Erik primarily focused on enhancing the satellite metabase, optimizing object management and data storage. Their commits addressed database load issues by implementing features to omit unnecessary object properties when listing objects, which improves performance. The user also made changes related to the API and command-line interface for registering and sharing access. Further, they worked on the database code for deletion and copy functionality.
cloud-object-storagedistributed-storagedistributed-systemsdistributedstorage
Erikvv/scope-guard-php
Nov 2015 - Jun 2020
Contributions:2 releases, 14 pushes, 1 branch in 4 years 8 months
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