Aarsh S.
Embedded Software Engineer @Hitachi Rail
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WORK HISTORY
Embedded Software Engineer @Hitachi Rail
CA
Developed modular firmware in Embedded C/C++17 for ESP32 (FreeRTOS), integrating ECG, SpO2, and temperature sensors via I2C, SPI, and UART; architected hardware abstraction and device driver layers with power-efficient sensor polling. Implemented BLE 5.0 GATT services for real-time waveform streaming, enabling bonding/pairing with encryption using Secure Boot V2 and Flash Encryption; supported multi-client connections for clinical data aggregation. Integrated AWS IoT Core with MQTT over TLS 1.2 (mbedTLS); handled device provisioning via x.509 certificates and built a JSON-based shadow sync system for OTA configuration. Engineered OTA update system using MCUBoot and dual-partitioned flash memory with rollback support; performed RSA-2048 signature validation and S3 artifact delivery pipeline for firmware distribution. Reduced average power consumption by 65% using ULP co-processor routines, deep sleep modes, and RTC-based wakeups; extended battery life from 5 to 14+ days on LiPo. Conducted IEC 60601-1 safety evaluations (brownout reset, watchdog recovery, EEPROM logging); resolved RF interference with hardware team via capacitor tuning and layout updates.
EDUCATION
Dharmsinh Desai University
Bachelor of Technology - B.TECH.
University of Ottawa
Master's degree
S.H.V
Higher Secondary Education
University of Ottawa
Micro degree, Interdisciplinary Artificial Intelligence (Specialization)
ABOUT AARSH S.
I am an Embedded Software Engineer with 3+ years of experience delivering high-impact firmware solutions across medical, automotive, and rail industries. With a strong foundation in Embedded C/C++, FreeRTOS, and IoT protocols (BLE, MQTT), I specialize in building power-efficient, secure, and reliable systems that integrate seamlessly with hardware and cloud technologies. At Hitachi Rail, I developed modular firmware for critical healthcare sensors, implementing real-time streaming and integrating AWS IoT Core for secure data exchange. My work reduced power consumption by 65%, extending device runtime and improving operational efficiency. I’ve also led the development of OTA systems and device provisioning through advanced security features like Secure Boot and RSA signature validation. Previously, at Bacancy Technology, I engineered real-time sensor algorithms and multi-threaded communication architectures, boosting system performance by 28%. I implemented Linux-based device drivers, optimized hardware interfaces, and integrated CI/CD pipelines for streamlined updates and fleet management. With a passion for delivering next-gen embedded solutions, I strive to create systems that meet both performance benchmarks and safety compliance standards like IEC 60601. Let’s push the envelope of embedded engineering together!
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