Nilesh Kale

I’m an Embedded Security Engineer with 5+ years of experience hardening firmware and IoT devices across ESP32, ARM, and Linux platforms. I focus on secure systems programming and practical security engineering—from threat modeling to secure deployment.

At Espressif Systems, I designed end-to-end OTA update resumption using ESP-IDF and FreeRTOS, reducing firmware failures by 40% across 1000+ devices. I strengthened secure boot and flash encryption for ESP32 using STRIDE-based threat modeling, reinforcing root of trust and anti-rollback enforcement.

I also optimized HTTP/HTTPS stability by 30% through input validation and static analysis, and improved cryptographic performance by implementing hardware cryptographic acceleration on new ARM-based chip variants. I’ve implemented TOTP-based two-factor authentication on ESP32 with mbedTLS (HMAC-SHA1 and secure time synchronization) and addressed 50+ customer security issues by combining root cause analysis with JTAG debugging and patches.

To scale quality, I integrated secure testing suites into CI/CD pipelines as part of Secure SDLC—covering secure boot validation, TLS handshake verification, X.509 certificate validation, and firmware integrity checks—raising test coverage by 35%. I’ve also hardened ATECC608 secure provisioning, improving key provisioning success from 85% to 99% across production devices.