Alejandro Mera
Security Engineer at Amazon
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolAlejandro Mera is a Security Engineer with a decade of experience hardening large-scale cloud platforms and embedded systems, currently securing Amazon eero devices and formerly shaping AppSec for the AWS Management Console and mobile console apps. He specializes in threat modeling, risk assessments, and pragmatic architecture changes that balance security, privacy, and developer velocity—such as moving sensitive flows to backend-only token handling and designing secure integrations for third-party platforms like Figma and WhatsApp. Alejandro combines deep research credentials (PhD-level work and publications at USENIX, IEEE S&P, NDSS) with hands-on firmware and IoT engineering, evidenced by contributions like a Modbus STM32 FreeRTOS library and prior work on binary-only firmware fuzzing. He has operationalized LLM automation to cut senior review time by 75%, and routinely investigates complex multi-service issues (e.g., SSRF) to distinguish true risks from false positives. Comfortable translating academic findings into production controls, he also teaches AI governance and ISO-based security practices to industry and government audiences.
10 years of coding experience
12 years of employment as a software developer
Master's degree, Management and Telecommunication Networks, Master's degree, Management and Telecommunication Networks at Universidad de las Fuerzas Armadas - ESPEDoctor of Philosophy - PhD, Cybersecurity, Doctor of Philosophy - PhD, Cybersecurity at Northeastern University
Spanish, English
Github Skills (9)
freertos10
usart10
embedded10
stm10
sys10
modbus10
dma9
tcp9
iot9
Programming languages (3)
Github contributions (5)
alejoseb/Modbus-STM32-HAL-FreeRTOS
May 2020 - Aug 2022
Modbus TCP and RTU, Master and Slave for STM32 using Cube HAL and FreeRTOS
Role in this project:
Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:5 reviews, 69 commits, 23 PRs in 2 years 2 months
Contributions summary:Alejandro's commits focus on developing a Modbus TCP and RTU library for STM32 microcontrollers using the Cube HAL and FreeRTOS. Their primary contributions involve implementing core Modbus functionality, including master and slave modes. The commits demonstrate the development of communication protocols, ring buffer implementations, and interrupt service routines to enable Modbus communication on the STM32 platform. Examples for various boards were also updated, showing the adaptability of the Modbus library.
freertosmodbus-tcpstmstm32plc
RiS3-Lab/D-Box
Apr 2022 - Sep 2022
Contributions:8 commits, 7 pushes, 1 branch in 4 months
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