Michiel Van Oudheusden
CTO At Freelance.nl
Utrecht, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolMichiel Van Oudheusden is a CTO-level technology leader with 14+ years of experience modernising legacy platforms into cloud-native, FinOps-driven operating models and building autonomous engineering organisations. He partners with C-level teams to align architecture, engineering operating models and financial accountability with long-term business strategy, having led transformations in highly regulated sectors including aviation (Boeing), logistics, real estate and financial services. Known for driving platform and developer-experience improvements that unlock product velocity and measurable strategic value, he blends hands-on engineering with strategic oversight. An active Microsoft MVP and GitHub contributor, his open-source work includes substantive fixes to widely used Serilog sinks, demonstrating practical backend expertise in logging and observability. Founder of LeftSize and owner of Azure FinOps Essentials, he uniquely combines cost-optimisation tooling with developer workflows to deliver savings where engineers already work. Based in Utrecht, he treats technology as a long-term business accelerator rather than a cost centre.
14 years of coding experience
11 years of employment as a software developer
Master’s Degree Technische Informatica, Master’s Degree Technische Informatica at University of TwenteGemeentelijk Gymnasium Hilversum Alumni
English, Dutch
Stackoverflow
662reputation
68kreached
15answers
3questions
Github Skills (22)
serilog10
mssqlserver10
amazon-elasticsearch10
netframework10
sql-server10
elasticsearchquery10
aws-elasticsearch10
dotnet-core10
microsoft-sql-server10
elasticsearch10
logging10
csharp10
elasticsearch-api10
api-design9
dotnet9
Programming languages (9)
Github contributions (5)
serilog-contrib/serilog-sinks-elasticsearch
Mar 2015 - Jan 2023
A Serilog sink that writes events to Elasticsearch
Role in this project:
Backend Developer
Backend DeveloperContributions:21 releases, 10 reviews, 232 commits in 7 years 11 months
Contributions summary:Michiel implemented crucial features within the Elasticsearch sink for the Serilog library. Their contributions included adding license headers, integrating a durable formatter with newline separators for improved logging format, and handling .NET 4 code compatibility. Furthermore, they added error handling mechanisms for bulk response deserialization and logging failed operations.
sinkeventsserilog-sinkfluentdlogging
serilog-mssql/serilog-sinks-mssqlserver
Dec 2015 - Oct 2019
A Serilog sink that writes events to Microsoft SQL Server and Azure SQL
Role in this project:Back-end Developer
Back-end DeveloperContributions:25 commits, 15 PRs, 20 pushes in 3 years 10 months
Contributions summary:Michiel contributed to the Serilog MSSQL Server sink, making small fixes and testing. These changes included modifications to the `LoggerConfigurationMSSqlServerExtensions.cs`, `MSSqlServerSink.cs`, and `SqlTableCreator.cs` files, indicating involvement in the core functionality of writing log events to a SQL Server database. The user's work included changes to table creation, data handling, and property conversion, demonstrating a focus on improving the sink's reliability and performance.
sinkdotnetsql-servereventsserilog-sink
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