I will build a custom blazor web application or dashboard

D
degraafdev
D
degraafdev
Tijmen de Graaf

About this gig

Need software that fits your process instead of forcing your process into off-the-shelf tools? I build custom web applications, internal tools and dashboards in C#, .NET, Blazor and SQL Server.


What I build:

Internal tools and admin panels (approvals, planning, reporting)

Dashboards on your own data or on open data

Customer portals with role-based login

Integrations between systems (webshop, bookkeeping, APIs)


How I work:

First, a short call or chat to define the scope. Then a written plan before any code. I build in small steps with regular progress updates, and you receive the source code and a short handover.


I can show examples of my own demo projects: expense claims, order-to-invoice integration, customer portal, shift planner, housing-market dashboard, quotes and invoices. Real-world experience: a screen-management platform for large retailers with 5,000+ screens, built in C#, Blazor and SQL Server.


I'm based in the Netherlands and work mostly in the evenings (CET). Dutch and English are both fine.

Get to know Tijmen de Graaf

Tijmen de Graaf

Custom software and WordPress developer using Blazor

  • FromNetherlands
  • Member sinceNov 2026
  • Languages

    Dutch, English
I'm a software developer from Amersfoort, the Netherlands, running De Graaf Development. I build custom web applications, dashboards and internal tools in C#, .NET, Blazor and SQL Server, and custom WordPress websites. Since December 2024 I've worked as a freelancer, including a screen-management platform for large retailers running on 5,000+ screens. Before that I spent two years as a junior WordPress developer at JKC Media. I'm studying Computer Science at Utrecht University and work mostly in the evenings (CET). Fluent in Dutch and English.