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I will implement secure ota updates and embedded device security
Expert Embedded Linux and Firmware Developer STM32 RTOS IoT Systems
10 years delivering production-grade embedded firmware for real-world hardware. I've built firmware for US-based commercial products and completed 30+ projects on Fiverr.
Specializing in: STM32, ARM C...
Nivel 1
Ha cumplido determinados criterios de rendimiento y muestra un gran potencial en la plataforma.
Acerca de este Servicio
Remote updates are critical for commercial IoT but carry the heavy risk of bricked hardware. I engineer fail-safe Over-The-Air (OTA) update mechanisms and secure architectures for your devices.
With 10 years of enterprise firmware experience, I design robust pipelines to ensure your field devices remain secure, online, and fully recoverable.
What I Implement:
- Embedded Linux OTA: Integrate update managers like Mender or SWUpdate into custom Yocto builds.
- Fail-Safe Architecture: A/B partition layouts, automatic rollbacks, and U-Boot configuration for zero bricked devices.
- RTOS / MCU OTA: Cloud-to-device updates via AWS IoT, FreeRTOS, or custom MQTT/HTTP bootloaders.
- Security & Cryptography: Secure Boot, hardware root of trust, cryptographic firmware signing, and encrypted payloads.
Why Work With Me?
- 10 years of expertise in high-level firmware and commercial Linux SoCs.
- Enterprise-grade reliability, strict memory management, and production-ready source code.
- Full technical support from architecture to deployment.
Please message me before ordering to discuss your hardware and partition layout.
Mi porfolio
Otros servicios de Ingeniería electrónica que ofrezco
FAQ
What hardware architectures and platforms do you support?
I specialize in commercial-grade SoCs and microcontrollers. For Embedded Linux, I work with custom boards, NXP i.MX series, Raspberry Pi Compute Modules, and BeagleBone. For RTOS/bare-metal, I support ESP32, STM32, and similar enterprise-grade MCUs.
How do you guarantee that a remote update won't brick the device?
I implement strict A/B (dual-bank) partition layouts combined with bootloader watchdog timers (e.g., in U-Boot or GRUB). If an OTA payload is corrupted or fails to boot properly, the system automatically triggers a rollback to the previous working partition.
Can you integrate an OTA client into my existing Yocto Project build?
Absolutely. If you already have a functional Yocto BSP, I can create custom bitbake layers to seamlessly integrate an update manager like Mender or SWUpdate, including configuring the necessary U-Boot environment variables.
Are the firmware payloads encrypted during the transfer?
Yes. Security is a priority. I ensure that all payloads are delivered over secure TLS connections (HTTPS/MQTT). Furthermore, the firmware images are cryptographically signed so the bootloader can verify their authenticity before executing any code.
