„Nico does not only convey content, but also the mindset that you should develop as a programmer. I felt well looked after.“
Moritz
C# Training · 2026
Lecturer · Software Development
Transforming potential
into code mastery.
I teach IT retraining programs. Guiding career-changers and aspiring developers from first principles to production-ready software craft.
// experience
10+ years
/* a collection of profile pictures my online aliases use. Maybe you already know me. */
/ about
An educator who still writes code.
I'm a lecturer in IT retraining programs specializing in software development. My students arrive from every imaginable background like nurses, accountants or factory workers and leave with the skills, intuition, and confidence to ship real software.
I believe great teaching starts with genuine craft. So I keep building, keep learning, and keep showing up to the keyboard alongside the people I teach.
What I'm into
Books, talks, articles and tools I'm currently excited about and keep recommending.
Show your Work
Austin Kleon · 31. Mai 2026
My talks
Conference talks on AI, web development and IT education. Recorded and free to watch.
Artificial Intelligence and ChatGPT
Visual · 2024
My workspace
The hardware, tools and little things I use every day to teach and to build.
Graphics card
NVIDIA GeForce RTX 4060
What I find funny
Memes, clips and little absurdities from a developer's life that always make me laugh.
The 'What-Have-I-Done' Look
When the error message is longer than your entire code.
/ projects
Things I've built, taught, or both.
A selection of learning tools, experiments, and programs I developed out of pure curiosity, for fun, or for personal use.
Tool
Markdown to JSON Editor
A lightweight Markdown editor with live preview and integrated toolbar, which outputs formatted text at the push of a button as a single-line, escaped JSON string for direct further processing.
MarkdownJSONJavaScript
Simulation
EvoSim
A 2D evolution simulation running entirely in the browser, visualizing the principles of natural selection, genetics, and adaptation in real time on an HTML5 Canvas.
Interactive SandboxData VisualizationJavaScript
Educational Tool
LiteQuiz
A lean, serverless web application for interactive live quizzes that transforms Markdown-based content into dynamic learning experiences.
P2P LearningMarkdown-to-QuizGamified Learning
Tool
PDF Studio
A powerful, browser-based tool for merging, splitting, and converting PDF documents and images without any server uploads.
ProductivityZero-Server UploadPrivacy-First
/ blog
Notes from the classroom & keyboard.
01 · Web & Performance
Dating the Crawler
An honest reckoning with SEO, keywords, and the absurd theatre of search engine optimization.
May 06, 2026 15 min read
02 · Industry & Career
The Illusion of Replaceability
Why AI is not the end of software development.
Apr 27, 2026 13 min read
03 · Industry & Career
The Bad Reputation of External Retraining Programs
Uploading a PDF, going underground for two weeks, done. What sounds like an isolated incident is, for many retrainees, a sad normality.
Mar 31, 2026 10 min read
/ voices
What former participants say.
A selection of feedback from retraining programs and coachings. Verified via ProvenExpert.
„Can't complain. Nico made my entry into IT possible. Thanks to his well-structured and educational lessons, I made it this far in the first place.“
Anton
C# Training · 2026
„Nico is an extremely likeable lecturer as well as an appreciative and committed person.“
Markus
Retraining Software Development · 2026
/ contact
Let's talk.
Want to ask a question, look for a mentor, or just chat about teaching software development? I'd love to hear from you.
ping@nicohartmann.dev