Sathish Kumar S

Project4: CCTV Surveillance Camera

Client: DELOPT | Duration: 2025 Feb- 2026 June- 1 year 5 months
Role: Design Lead Engineer

Project Summary:

Developed a 5MP IP Bullet Surveillance Camera for security and surveillance applications. The camera architecture comprised four major hardware modules: Image Sensor Card (OmniVision OS05B10), Renesas RZ/G3E-based SoC Card, PoE Power Supply Card (MP8008), and IR LED Card. The system supported MIPI CSI-2 image acquisition, H.264/H.265 video compression, IP video streaming, ONVIF profile compatibility, audio support, and intelligent day/night vision with IR illumination control. The platform was designed for STQC compliance and incorporated cybersecurity features such as Secure Boot, Secure Storage, Secure Video Streaming, and HTTPS-based communication, making it suitable for government and enterprise surveillance deployments.

Key Responsibilities:

• Defined hardware architecture and selected key components based on performance, cost, and lifecycle requirements.

• Designed and reviewed schematics for Image Sensor, SoC, PoE, and IR LED modules.

• Integrated OmniVision OS05B10 image sensor with Renesas RZ/G3E SoC and validated high-speed interfaces.

• Coordinated with software teams for Linux BSP, image sensor driver integration, and video streaming validation.

• Managed PCB layout reviews, board bring-up, debugging, functional testing, and system integration.

• Supported mechanical design, thermal analysis, cybersecurity implementation, and STQC compliance activities.

• Coordinated with vendors and cross-functional teams throughout the product development lifecycle.

Project3: People Counting System (PCS) – Stride Plus

Client: DELOPT | Duration: Jul 2024 – Jan 2025 (7 Months)
Role: Design Lead Engineer

Project Summary

Stride Plus is an advanced AI-based People Counting System designed for retail, commercial, and public environments. The system utilizes a Raspberry Pi 5 processor and Intel RealSense D415 Depth & RGB camera to accurately count people, track movement, and generate occupancy analytics. The custom carrier board integrates PoE/PoE+ (MP8009) power management, RTC, temperature monitoring, authentication module, RS-422 communication, GPIO interfaces, and power status monitoring. The system leverages depth sensing for reliable night-time counting and RGB-based analytics during daytime operation. Data is transmitted to a central server for live monitoring, video streaming, scheduled recording, group counting, child counting, and staff identification through tag-based tracking.

Key Responsibilities

• Analyzed customer requirements and existing product limitations.
• Selected components and defined hardware architecture for enhanced product features.
• Developed block-level hardware design and coordinated PCB layout activities.
• Managed PCB fabrication, assembly, and prototype bring-up.
• Performed board-level testing, debugging, and functional validation.
• Supported mechanical integration and complete unit assembly.
• Conducted thermal analysis and Environmental Chamber Testing (ECT).
• Verified PoE/PoE+ power delivery and system reliability.
• Prepared and maintained technical documents, test reports, and design records.

Project2: People Counting System (PCS) – Stride
Client: DELOPT | Duration: 2023 Feb- June 2024- 1 year 4 months

Role: Hardware Lead Engineer

Project Summary:
Stride is a People Counting System (PCS) designed to monitor and analyze pedestrian movement using an Intel RealSense D410 depth camera and Raspberry Pi 4B platform. The system detects and tracks people crossing configurable virtual lines, generating accurate occupancy analytics. Count data, live video streams, recordings, group counts, and child counts are transmitted to a centralized server and visualized through a web-based dashboard. The hardware platform includes a custom carrier card featuring PoE power management, RTC, authentication module, temperature monitoring, RS-422 communication, GPIO interfaces, and supercapacitor-based safe shutdown functionality.

Key Responsibilities:

• Led hardware architecture definition, component selection, schematic design, PCB development, testing, and production release.
• Successfully designed and deployed a custom carrier card for the People Counting System.
• Resolved a critical intermittent reboot issue affecting field-deployed systems through systematic hardware and software root-cause analysis.
• Identified Intel RealSense sensor frame-drop conditions causing application hangs and watchdog-triggered restarts.
• Collaborated with the software team to implement exception handling, timeout recovery, and firmware improvements.
• Performed remote diagnostics and field troubleshooting using network access and GUI activity logs.
• Validated corrective actions through long-duration reliability testing and deployment monitoring.
• Improved overall system stability, reliability, and uptime in customer installations.

Project1: Instrumentation Data Acquisition System (IDAS)

Client: NSTL | Duration: March 2022 – Jan 2023 10 Months
Role: Hardware Lead Engineer

Project Summary:
Worked on the verification and validation of an Instrumentation Data Acquisition System (IDAS) comprising CPU, MRAM, MTU, Power Supply, Mother Board, and Front Connector Cards. The CPU Card was based on the TMS570LS3137 microcontroller and XC6SLX9-2FTG256 Spartan-6 FPGAs with Ethernet, ADC, SDRAM, NAND Flash, SPI Flash, UART, and USB interfaces. The MRAM Card utilized an XC6SLX9-2FTG256 Spartan-6 FPGA with MR4A16BCYS35 MRAM. The MTU Card incorporated SATA Flash, SPI Flash, and Relay interfaces. The Power Supply Card included EMI/EMC filters and DC-DC converters. All modules were interconnected through a Mother Board and Front Connector Board using rugged circular connectors for system-level integration.

Key Responsibilities:

• Performed design verification and hardware validation of CPU, MRAM, MTU, Power Supply, and Mother Boards.
• Conducted card-level functional testing, debugging, and system integration activities.
• Executed Acceptance Test Procedures (ATP) using GUI-based test applications.
• Validated ADC, SDRAM, SPI Flash, NAND Flash, MRAM, Ethernet, UART, and USB interfaces.
• Performed memory testing and data integrity verification through Ethernet communication.
• Managed component obsolescence and evaluated alternate components.
• Supported EMI/EMC qualification and CE102 compliance testing.
• Prepared ATP, QAP, Hardware Design Documents (HDD), Software Design Documents (SDD), and test reports.
• Coordinated with cross-functional teams for system qualification, issue resolution, and customer deliverables.
• Led design projects from concept through execution, ensuring alignment with client specifications.
• Developed and implemented innovative design solutions to enhance product functionality and efficiency.

Company Overview:

Lumisense Technologies Private Limited is an embedded systems and product engineering company specializing in the design, development, testing, and validation of hardware and embedded solutions for industrial, automotive, and electronics applications.

Key Responsibilities

• Designed and developed evaluation boards based on Microchip PIC16F877A, STM32F103C8T6, ESP8266 (NodeMCU), Arduino, and ESP32 platforms.
• Designed hardware modules including IR Sensor Boards, Motor Driver Modules, Relay Driver Circuits, GPIO Interfaces, LCD Interfaces, UART Communication, and ADC-based Sensor Interfaces.
• Developed embedded firmware using MPLAB IDE with HI-TECH C and CCS C compilers for PIC microcontrollers.
• Developed Arduino and ESP32/ESP8266 applications using Arduino IDE.
• Performed circuit simulation and validation using Proteus before hardware implementation.
• Programmed and debugged microcontrollers using PICkit-3 and other programming tools.
• Integrated communication protocols including UART, I2C, and SPI with peripherals such as RTC, EEPROM, LoRa modules, LCD displays, and sensors.
• Developed IoT-based monitoring and control solutions using ESP8266 and ESP32 with Adafruit IO and custom web dashboards.
• Designed relay logic, motor control circuits, optocoupler isolation circuits, and transistor-based driver circuits.
• Performed hardware assembly, wiring, testing, troubleshooting, and customer demonstrations.
• Executed and delivered 1000+ customer-specific embedded projects involving PIC, Arduino, ESP8266, and ESP32 platforms.
• Prepared technical documentation and provided technical support during project delivery.

Worked as a Claim Analyst in the healthcare domain, responsible for processing and adjusting Medicaid and Children's Health Insurance Program (CHIP) claims in accordance with provider requests and client guidelines. Managed claim adjustments, provider contract maintenance, quality assurance activities, and client escalations while ensuring compliance with healthcare regulations and service-level agreements.

Handled healthcare insurance claim adjudication using FACETS, ensuring accurate claim processing through eligibility verification, benefit analysis, payment validation, and compliance with Medicare and client guidelines. Supported quality improvement activities through audits and knowledge-sharing sessions.