Tim Leijnse
Product Owner SFINCS Model at Deltares
The Hague, South Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolTim Leijnse is a coastal engineer, researcher and product owner with nine years’ experience developing fast, probabilistic compound flood models and tools at Deltares. He leads the SFINCS product for Deltares NL, steering software development that enables large-scale, wave-resolving compound flood assessments while contributing to HydroMT and Delft Dashboard workflows. His PhD (Vrije Universiteit Amsterdam, 2025) produced novel, validated methods—including SFINCS and a SnapWave coupling—to efficiently include infragravity wave processes and probabilistic cyclone boundaries. Tim has applied these tools across diverse international projects (Australia, Bangladesh, India, USA, Senegal and more), bridging academic rigor with operational modeling needs. Colleagues know him for pushing methodological advances that make computationally intensive coastal-hazard modeling practical at scale. Based in The Hague, he combines deep numerical-model expertise with product-oriented delivery to translate research into usable flood-risk solutions.
9 years of coding experience
3 years of employment as a software developer
Doctor (dr), Environmental Science, Doctor (dr), Environmental Science at Vrije Universiteit AmsterdamTU DelftVWO, Natuur & Techniek, VWO, Natuur & Techniek at SSG Nehalennia Middelburg
Dutch, English, German
Github Skills (25)
geoscience10
flooding10
model-building10
hydrology10
hydrodynamics10
compound10
modeling10
forge8
energy-data7
biodiversity7
energy7
ocean7
photovoltaic6
renewable-energy6
carbon-emissions6
Programming languages (2)
Github contributions (5)
openearth/xbeach-test-python
May 2017 - Jun 2017
Contributions:113 commits, 2 PRs, 105 pushes in 1 month
diagnostictest-environment
Deltares/SFINCS
Jun 2022 - Mar 2023
Super-fast modelling of dynamic compound flooding in Coastal Systems
Contributions:5 releases, 31 reviews, 107 commits in 8 months
super-fastcoastalcompoundfloodingmodelling
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