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rafaeltetzner

Rafael T

@rafaeltetzner

Software Engineer

Brazil
Portuguese, English
About me
I am a Computer Engineer with experience in software development for large-scale systems. I currently work on security-critical components for Samsung Knox, with a background in Linux-based systems, C/C++, Java, and Python.... Read more

Skills

r
rafaeltetzner
Rafael T
Offline • 

See my services

Code Review
I will review security critical code for vulnerabilities
From$15 / projectMore details

Work experience

Samsung

Secure Software Engineer

Samsung • Full-time

Jun 2025 - Present • 1 yr 3 mos

Developer of key security features availble on Samsung's DO devices. Mainly working with Java, Kotlin and Android TEE layer.

Rentbrella

Rentbrella

Full-time • 1 yr 5 mos

Firmware Developer

Jan 2025 - Jun 2025 • 5 mos

Development of various projects using C on ARM Cortex-M (STM32) microcontrollers, as well as C++ and Python on embedded Linux systems (Raspberry Pi). Programming of graphical interfaces for HMI screens on Proculus and DWIN platforms. Migration of projects from 32-bit to 64-bit architecture and implementation of containerization with Docker.

Firmware Developer Internship

Jan 2024 - Jan 2025 • 1 yr

Focused on firmware development and feasibility analysis for cost reduction of components. Involved in programming graphical interfaces for HMI screens and implementing strategies for system optimization. Worked with embedded systems and assisted in architectural migrations and containerization initiatives.