San Jose, CA · Systems Engineer

Miro Haapalainen_

Systems & OS Dev AI / ML Musician · Guitarist

Software engineer at NetApp building WAFL — the filesystem powering enterprise storage at scale. Fluent in the language of kernels, compilers, and chord progressions alike.

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01

About

/* background & expertise */

I'm a systems software engineer at NetApp, working on WAFL — the Write Anywhere File Layout filesystem that powers enterprise storage products at scale. My work lives at the intersection of kernel engineering, performance optimization, and reliability.

My passion for low-level development runs deep: from writing operating systems in C and assembly to building real-time messaging platforms and AI-augmented creative tools. I hold expert knowledge of Java, Python, C, C#, Git, and Linux/Unix, with solid experience in C++, x86 Assembly, OCaml, and more.

Beyond the terminal, I'm a guitarist who has played in bands and written, recorded, and released original music. International in outlook, multilingual in communication — I bring the same systematic creativity to code that I bring to music.

// tech stack

Expert
C Filesystems Operating Systems Java Python C# Git Linux/Unix
Proficient
C++ x86 ASM OCaml Dart Flutter PHP SQL
Domains
OS Design Filesystems AI/ML Algorithms Optimization
02

Projects

01 /
MOSS
C x86 ASM
+

Miro's Open Source System — a full x86 operating system written from scratch in C and assembly. Features kernel/user space separation, an ext2 filesystem implementation, physical and virtual memory management, paging, and basic hardware drivers. Cross-compiles virtually any UNIX userspace program with minimal changes — including mpad and DOOM.

ext2 Filesystem
Virtual Memory
Paging
HW Drivers
Runs DOOM
02 /
mpad
C
+

A vim-inspired, screen-oriented text editor written entirely in C — built for my own workflow with custom features and modifications. It now serves as my primary editor for all development work, and can be cross-compiled to run natively inside MOSS.

Vim-inspired
Custom Features
MOSS Compatible
Primary Editor
03 /
Chatterbox
Dart Python
+

A WhatsApp-inspired real-time messaging platform featuring end-to-end encryption, group chats, and media sharing. Built with Dart and Flutter for a cross-platform UI, backed by a custom Python middleware server. Designed with security-first principles and seamless UX.

E2E Encryption
Group Chats
Media Sharing
Cross-platform
04 /
AI_DAW
AI/ML C++
+

A fully functional Digital Audio Workstation with VST plugin support, featuring a deeply integrated AI engine connected to all DAW functions. The AI assists in arrangement, mixing, sound design, and composition — bringing machine intelligence to the music production process.

VST Support
AI Engine
Full DAW
AI Mixing
03

Music

Music is my other language. I've played guitar in multiple bands, written and recorded original material, and released an EP on Spotify and tracks on YouTube. The same discipline that goes into systems engineering — precision, iteration, attention to detail — goes into every recording.

🎵
Streaming
The Reagans

Original music available on Spotify. Stream the EP and follow for new releases.

Listen on Spotify →
▶️
Video
Other Misc Music Stuff

Tracks, recordings, and music videos released on YouTube. Watch and subscribe.

Watch on YouTube →
🎛️
Production
Built My Own DAW

As a producer I needed full control — so I built AI_DAW, a complete DAW with VST support and an integrated AI engine.

See the Project →
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Contact

/* let's connect */

Whether you're building something at the intersection of systems and intelligence, want to talk low-level engineering, or just want to hear some guitar — I'm reachable. Drop me a line.