Marijn Van Der Zee
Owner at Serra ICT Diensten
The Hague, South Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolMarijn Van Der Zee is an experienced agile coach, Scrum Master and founder with 16+ years helping organizations build reliable, high-performing software teams. As owner of Serra ICT Diensten and a long-term independent consultant he combines hands-on technical background—contributing to projects like Spring.NET and GitVersion—with deep coaching skills to improve team practices and delivery pipelines. He holds PSM III and product/technical Scrum certifications and has guided teams through Scrum, SAFe and DevOps adoptions across public and private sectors. Known for pragmatic, facilitative leadership, he helps organizations create environments where teams can self-organize and continuously improve. An engineer by training (TU Delft), he also brings attention to developer experience and CI/CD automation—a thread visible in his open-source work integrating build and Jenkins workflows. Based in The Hague, he pairs coaching with occasional technical contributions, making him effective at both people and process change.
15 years of coding experience
18 years of employment as a software developer
PSM III PSPO I PSD I Scrum, PSM III PSPO I PSD I Scrum at Scrum.orgVWO, VWO at Praedinius Gymnasium GroningenMSc Mechanical Engineering specialization Transportation Engineering and Logistics, MSc Mechanical Engineering specialization Transportation Engineering and Logistics at Delft University of TechnologyBasketball Trainer 4, Basketball Trainer 4 at Nederlandse Basketball BondXPM Coach XSCALE Product Management, XPM Coach XSCALE Product Management at XSCALE Alliance
Dutch, English
Stackoverflow
10,457reputation
558kreached
220answers
11questions
rest
top-5%
design-patterns
top-5%
domain-driven-design
top-5%
dependency-injection
top-5%
python-sphinx
top-1%
twitter-bootstrap
top-5%
Github Skills (48)
git10
textbook10
aspect-oriented-programming10
restructuredtext10
python10
storybook10
sphinx10
aspectj10
net10
guideline10
python-sphinx10
aop10
rs10
dotnet10
cicd10
Programming languages (16)
Github contributions (5)
realpython/python-guide
Mar 2016 - Mar 2017
Python best practices guidebook, written for humans.
Role in this project:
Technical Writer
Technical WriterContributions:10 commits, 3 PRs, 2 comments in 1 year
Contributions summary:Marijn primarily contributed to the documentation of the "Python best practices guidebook" repository. Their commits focused on correcting formatting issues, fixing broken links, adding references, and ensuring the correct rendering of code blocks and directives. They updated various documentation files, addressing warnings, and ensuring the guide's readability and clarity. The contributions also included removing incorrect uses of directives, and updating code samples.
guidebookpythonkennethreitzrequirements-managementfor-humans
spring-projects/spring-net
Oct 2011 - Apr 2012
Spring Framework for .NET
Role in this project:Backend Developer
Backend DeveloperContributions:38 commits in 6 months
Contributions summary:Marijn primarily focused on enhancing the build process and supporting documentation. Their commits include the addition of a build command file for generating reference documentation and modifying it for console output of build log. They also integrated generics support and updated core functionalities related to AOP features within the Spring .NET framework. These changes are indicative of improving build automation, adding features, and resolving issues related to the project's core functionality.
spring-bootguicespring-frameworkaspect-oriented-programmingspring
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