Senior Software Engineer

Building scalable software solutions that matter

Specializing in .NET and React ecosystems with 5+ years of experience. Passionate about clean architecture, mentoring developers, and sharing knowledge through technical writing.

Explore Technical Blog Let's Connect

Follow me:

5+ Years

Experience

10+

Junior Developers Mentored

20+

Projects Delivered

100%

Cloud Native

About Nico Fortuin

Senior Engineer with a passion for mentorship & growth

I'm a passionate software engineer with deep expertise in .NET and React ecosystems, dedicated to building scalable applications and mentoring the next generation of developers.

Through my technical blog, I share advanced programming concepts, system design patterns, algorithms, and career guidance to help others successfully transition into and excel in the tech industry.

When I'm not architecting solutions, you'll find me exploring cutting-edge technologies, contributing to open source projects, and helping aspiring developers achieve their career goals.

Currently focused on:

Microservices architecture with .NET

Modern React patterns & Next.js

Cloud-native solutions on Azure

Tech Stack

Backend

.NET

Framework

React

Frontend

TypeScript

Language

Next.js

Framework

Azure

Cloud

SQL Server

Database

Tailwind CSS

Styling

Expertise Areas

Full-Stack Development

End-to-end application development

System Architecture

Scalable & maintainable designs

DevOps & CI/CD

Automated deployment pipelines

Technical Mentoring

Guiding junior developers

Projects

Things I build and run on my own time

Independent products, separate from client and employer work, each with a case study on the engineering decisions behind it.

All projects

Container view of the platform: four .NET deployables in front of PgBouncer, PostgreSQL 17, S3-compatible object storage and Redis, with telemetry flowing to the Aspire dashboard

Secure Statement Delivery Platform

Open source, not deployed

Write-once encrypted statements, single-use links, erasure where deletion is impossible

.NET 10
C#
PostgreSQL 17
PgBouncer
+4S3 Object Lock / MinIO, Redis, OpenTelemetry, Docker

View code on GitHub

GovPosts

Live, updated weekly

South Africa's weekly government vacancy circular, searchable on any phone

Astro (SSR)
Cloudflare Workers
D1 + FTS5
R2
+5Cloudflare Workflows, Cloudflare Access, Resend, Claude (Anthropic), TypeScript

Visit site

Prism

Live

An algorithm visualiser that asks you to predict the next step before it shows you

Astro
React
TypeScript
three.js
+4Web Workers, IndexedDB, Tailwind CSS, Cloudflare Workers

Visit site

📚 Technical Writing

Latest insights from the engineering trenches

Deep dives into software architecture, clean code practices, and lessons learned from building production systems.

.NET5 min read

Background Jobs in .NET: BackgroundService, IHostedService, and When You Need Hangfire

Dotnet background jobs compared: BackgroundService, IHostedService, queues and Hangfire — persistence, retries, scaling, and which to choose when.

Sep 18, 2026

AI & LLMs5 min read

Running Local LLMs with Ollama and C#: A Step-by-Step Guide

Ollama C# tutorial: run Llama and other open models locally and call them from .NET via OllamaSharp or the OpenAI-compatible API — private and free.

Sep 15, 2026

.NET5 min read

Nullable Reference Types in C#: A Practical Migration Guide for Legacy Code

Enable nullable reference types in an existing .NET project without drowning in warnings: a file-by-file migration strategy, annotations, and pitfalls.

Sep 11, 2026

Stay updated with new content

Be the first to read in-depth technical articles, tutorials, and insights from a senior engineer's perspective.

Explore the Blog