QuickSign — Rust developer
Built a plist generator with hyper; libqsign, a library for signing iOS IPA files; and reliability, security, and automation tools.
NAME
Theo Marcos — systems and Rust developer
SYNOPSIS
theo [--rust] [--c] [--systems] [problem ...]
DESCRIPTION
Systems developer focused on Rust, with experience building production tools, open-source libraries, and low-level components.
I’m interested in operating systems, compilers, security, and understanding how things work beneath the surface.
focus Rust / systemsbuilds tools that lastbased Geneva
EXPERIENCE
2024 – present
apnrs
Rust implementation of Apple Push Notification Service, used in production with around 7,000 downloads.
Independent
Location tracking platform with a Rust backend and Android app; over two years of continuous uptime.
TECHNICAL EXPERIENCE
Systems
x86 operating system in C and assembly: scheduler, interrupts, ELF, bootloader, and filesystem. Debugged with QEMU and GDB.
Languages
C preprocessor in Python and a Rust-inspired functional language interpreter.
Security
Top 800 worldwide on Hack The Box.
EDUCATION
2023 – present
Collège et École de Commerce André-Chavanne; physics option, bilingual program.
2019 – 2023
Institut Florimont.
SKILLS
- Languages
- Rust, C, Python, JavaScript, Lua, Shell, x86 assembly
- Tools
- Git, Linux, GDB, QEMU, NASM, Android, (Neo)Vim
- Spoken
- French (native), English (fluent), Italian and Mandarin (reading/listening).
PROJECTS
mboot
C bootloader, close to the machine’s first instructions.
apnrs
Rust implementation of the Apple Push Notification Service protocol.
knockrs
Port knocking multiplexer written in Rust.
i-drive
SSD1306 driver for the Raspberry Pi kernel and I²C.