Self-Initiated Project (Independent R&D) | Lead Architect & Developer
Architecture: Built a secure 3-tier FOTA pipeline ? Node.js/PostgreSQL/MinIO backend, Eclipse Leshan LwM2M server, Yocto C++20 gateway daemon on Raspberry Pi 5, BLE-connected ESP32-S3/Zephyr endpoints ? validated under QEMU pre-hardware.
Zero-Trust PKI: Deployed step-ca issuing short-lived X.509 certs for mTLS across all backend services and per-device identities; JWT operator auth; immutable audit log (IEC 62443/NIST SSDF aligned).
Firmware Integrity: Found and fixed a critical bypass where SHA-256 verification was silently skipped; added SUIT-inspired (RFC 9124) anti-rollback checks with fail-closed enforcement.
Secure Transport: Implemented DTLS (PSK, tinydtls) on the LwM2M/CoAP control channel ? debugged the full handshake stack from PKI provisioning through Wakaama's tinydtls transport integration to a working registration.
OTA Delivery: Resumable libcurl downloads with enforced TLS peer verification and presigned time-limited MinIO URLs. RAUC A/B rootfs updates. HSM-backed CI/CD signing. Planned: Local Ollama fleet copilot.
ESP32 Endpoint Design: Zephyr firmware for BLE-only ESP32-S3 nodes (never direct-to-cloud) using MCUboot + MCUmgr/SMP for authenticated resumable image transfer.
Telemetry Plane: mTLS-secured MQTT (Mosquitto) as a dedicated telemetry channel, decoupled from the LwM2M control plane.
C++20Yocto ProjectZephyr RTOSESP32-S3Raspberry Pi 5Node.jsPostgreSQLMinIOEclipse Leshan/Wakaamastep-ca/PKIMQTT/Mosquitto.
Automation: Built a Python-based infrastructure automation framework to auto-configure OEM-specific AUTOSAR SWCs, reducing developer integration cycle time by 80%.
Testing & Validation: Acted as SPOC for flash/security defects; designed automated CAPL stress-testing environments, increasing bug reproducibility by 80%.
Compliance: Ensured strict software alignment with MISRA-C guidelines, ASPICE, and ISO 26262 (ASIL) standards.
OEM Coordination: Technical Customer SPOC for German premium OEMs (BMW, Daimler), coordinating on-site approvals, validation, and pre-SOP issue resolution.
ECU Optimization: Optimized ECU runtime utilization from 93% down to 89% to enhance efficiency.
Module Configuration: Configured SecOC, FlexRay COM, and Diagnostic modules across multiple vehicle lines; managed custom bootloader functionality and NVM migration.
Team Leadership: Directed a 4-member problem-resolution team to close 50+ pre-SOP firmware defects, yielding a 90% error reduction prior to production.
Designed and simulated MPPT algorithms for solar PV modules using PIC18F.
Designed voltage and current sensing circuits for power electronics applications.
MPPT AlgorithmPIC18FOszilloskopLogic AnalyserEmbedded C
Mitrah Ray Vidyuth
India
1 year 5 months
2011-06 - 2012-10
Field Data Recorder
Embedded DeveloperEmbedded CEEPROMUART...
Embedded Developer
Developed low-level drivers (GLCD, EEPROM, Serial Communication) on ARM microcontroller for a Field Data Recorder device.
Embedded CEEPROMUARTARMGLCDLow-Level HW Treiber
Feature Technology
India
Aus- und Weiterbildung
Aus- und Weiterbildung
2 years
2009-06 - 2011-05
Embedded systems
Master of Technology, India
Master of Technology
India
4 years
2005-06 - 2009-05
Electronics and Communication
Bachelor of Technology, India
Bachelor of Technology
India
Position
Position
Embedded Software Architect / AUTOSAR BSW Integrator for safety-critical automotive ECUs (steering systems, Tier-1/OEM). Field of application: functional safety (ISO 26262), automotive cybersecurity (ISO 21434, UNECE R155, HSM/PKI), and secure FOTA/OTA systems on embedded Linux (Yocto) and RTOS platforms.
Self-Initiated Project (Independent R&D) | Lead Architect & Developer
Architecture: Built a secure 3-tier FOTA pipeline ? Node.js/PostgreSQL/MinIO backend, Eclipse Leshan LwM2M server, Yocto C++20 gateway daemon on Raspberry Pi 5, BLE-connected ESP32-S3/Zephyr endpoints ? validated under QEMU pre-hardware.
Zero-Trust PKI: Deployed step-ca issuing short-lived X.509 certs for mTLS across all backend services and per-device identities; JWT operator auth; immutable audit log (IEC 62443/NIST SSDF aligned).
Firmware Integrity: Found and fixed a critical bypass where SHA-256 verification was silently skipped; added SUIT-inspired (RFC 9124) anti-rollback checks with fail-closed enforcement.
Secure Transport: Implemented DTLS (PSK, tinydtls) on the LwM2M/CoAP control channel ? debugged the full handshake stack from PKI provisioning through Wakaama's tinydtls transport integration to a working registration.
OTA Delivery: Resumable libcurl downloads with enforced TLS peer verification and presigned time-limited MinIO URLs. RAUC A/B rootfs updates. HSM-backed CI/CD signing. Planned: Local Ollama fleet copilot.
ESP32 Endpoint Design: Zephyr firmware for BLE-only ESP32-S3 nodes (never direct-to-cloud) using MCUboot + MCUmgr/SMP for authenticated resumable image transfer.
Telemetry Plane: mTLS-secured MQTT (Mosquitto) as a dedicated telemetry channel, decoupled from the LwM2M control plane.
C++20Yocto ProjectZephyr RTOSESP32-S3Raspberry Pi 5Node.jsPostgreSQLMinIOEclipse Leshan/Wakaamastep-ca/PKIMQTT/Mosquitto.
Automation: Built a Python-based infrastructure automation framework to auto-configure OEM-specific AUTOSAR SWCs, reducing developer integration cycle time by 80%.
Testing & Validation: Acted as SPOC for flash/security defects; designed automated CAPL stress-testing environments, increasing bug reproducibility by 80%.
Compliance: Ensured strict software alignment with MISRA-C guidelines, ASPICE, and ISO 26262 (ASIL) standards.
OEM Coordination: Technical Customer SPOC for German premium OEMs (BMW, Daimler), coordinating on-site approvals, validation, and pre-SOP issue resolution.
ECU Optimization: Optimized ECU runtime utilization from 93% down to 89% to enhance efficiency.
Module Configuration: Configured SecOC, FlexRay COM, and Diagnostic modules across multiple vehicle lines; managed custom bootloader functionality and NVM migration.
Team Leadership: Directed a 4-member problem-resolution team to close 50+ pre-SOP firmware defects, yielding a 90% error reduction prior to production.
Designed and simulated MPPT algorithms for solar PV modules using PIC18F.
Designed voltage and current sensing circuits for power electronics applications.
MPPT AlgorithmPIC18FOszilloskopLogic AnalyserEmbedded C
Mitrah Ray Vidyuth
India
1 year 5 months
2011-06 - 2012-10
Field Data Recorder
Embedded DeveloperEmbedded CEEPROMUART...
Embedded Developer
Developed low-level drivers (GLCD, EEPROM, Serial Communication) on ARM microcontroller for a Field Data Recorder device.
Embedded CEEPROMUARTARMGLCDLow-Level HW Treiber
Feature Technology
India
Aus- und Weiterbildung
Aus- und Weiterbildung
2 years
2009-06 - 2011-05
Embedded systems
Master of Technology, India
Master of Technology
India
4 years
2005-06 - 2009-05
Electronics and Communication
Bachelor of Technology, India
Bachelor of Technology
India
Position
Position
Embedded Software Architect / AUTOSAR BSW Integrator for safety-critical automotive ECUs (steering systems, Tier-1/OEM). Field of application: functional safety (ISO 26262), automotive cybersecurity (ISO 21434, UNECE R155, HSM/PKI), and secure FOTA/OTA systems on embedded Linux (Yocto) and RTOS platforms.