Wietse Muizelaar
Lead System Engineer at bol.com
Almere, Flevoland, Netherlands
Summary
👤
Senior🎓
Top SchoolWietse Muizelaar is a Lead System Engineer with 10+ years of experience building and operating large-scale infrastructure for retail and media, currently shaping self-service cloud tooling at bol.com to balance team autonomy with company-wide governance. He combines deep systems expertise—from OS, networking and storage to Kubernetes, Istio and Google Cloud—with a security-first mindset and a drive to automate everything. A former platform architect and long-time sysadmin for Dutch public broadcasters, he’s comfortable with high-throughput streaming platforms and complex datacenter migrations. He contributes to open-source networking projects like Project Calico’s Felix, adding pragmatic controls in both Go and Python. With an MSc in Business Information Technology from Universiteit Twente, he pairs technical depth with an understanding of organizational and business needs.
10 years of coding experience
9 years of employment as a software developer
Master of Science (MSc), Business Information Technology, Master of Science (MSc), Business Information Technology at Universiteit TwenteZuyderzee College, EmmeloordOSG De Rietlanden
Stackoverflow
11reputation
74reached
0answers
1question
Github Skills (18)
felix10
python10
networking10
iptables10
go10
golang10
calico10
container9
kubernetes9
dockers9
docker9
kubernetes-pods9
security8
policies8
php6
Programming languages (9)
Github contributions (5)
projectcalico/felix
Dec 2016 - Feb 2017
Project Calico's per-host agent Felix, responsible for programming routes and security policy.
Role in this project:
Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:16 commits, 2 PRs, 21 comments in 2 months
Contributions summary:Wietse contributed significantly to the configuration and functionality of Felix, the per-host agent for Project Calico. Their work included implementing options to control the insertion or appending of iptables rules and making the iptables log prefix configurable. They also added configuration parameters to the Go code, enhancing Felix's overall flexibility and control. The user's contributions spanned both Python and Go code, demonstrating proficiency across the project's tech stack.
containersgolangpolicyhost-agentagent
wmuizelaar/ilab-media-tools
Sep 2019 - Oct 2023
Contributions:2 pushes, 5 branches in 4 years 1 month
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