Embedded System development:• Developed firmware for ARM Cortex-M microcontrollers, ESP32, AVR, and PIC• Developed embedded systems software for industrial applications, focusing on real-time performance and reliability.• Designed and implemented low-level device drivers and hardware abstraction layers (HAL) for peripheral interfaces (SPI, I2C, UART).• Utilized FreeRTOS for task scheduling and real-time multitasking in embedded applications, ensuring efficient resource utilization and deterministic behavior• Utilized C/C++ programming languages for firmware development, optimizing code efficiency and memory footprint to meet strict resource constraints.• Integrated communication protocols such as MQTT, Modbus, CAN bus for data exchange between embedded devices and backend servers.• Implemented secure communication protocols (TLS/SSL) to protect sensitive data in transit.• Proficient in debugging tools (GDB, JTAG debuggers, logic analyzers) for unit testing, integration testing, and troubleshooting.• Led the development of embedded software for wireless communication modules (Wi-Fi, Bluetooth, Zigbee) in IoT applicationsPCB Design and Development:• Altium Designer: Deep expertise in using Altium Designer for schematic capture, PCB layout, and BOM management. Proficient in designing multi-layer boards, with a keen focus on optimizing signal integrity and minimizing electromagnetic interference (EMI).• Other Design Tools: Experienced with Cadence OrCAD, Eagle PCB, and Mentor Graphics PADS for PCB design, offering flexibility in tool usage based on project requirements and team environments.• Design Optimization: Skilled in using design rule checks (DRC) and layout techniques to produce highly reliable and manufacturable PCBs. Familiar with IPC standards for PCB design and layout.• Collaboration and Documentation: Work closely with mechanical, software, and manufacturing teams to integrate PCB designs seamlessly into product designs.

• Contributed to Arduino, PIC, AVR and ARM Cortex-M firmware development, optimizing code with FreeRTOS for real-time performance.• Developed firmware for Wi-Fi, Bluetooth, and MQTT protocols for device communication.• Participated in designing and implementing device drivers and hardware abstraction layers (HAL) for SPI, I2C, and UART.• Acquired proficiency in C/C++ programming and debugging tools like GDB, JTAG.• Design and develop hardware and firmware for Zigbee wireless sensor network .PCB Design experience:• Proficient in Advanced PCB Design Tools: Expertise in Altium Designer, Cadence OrCAD, and Eagle PCB; skilled in all phases from schematic capture to layout and final production testing.• Complex Multi-Layer PCBs: Designed intricate multi-layer boards for high-frequency applications, focusing on optimal layout for signal integrity and power distribution.• Innovative Design Solutions: Developed a miniaturized PCB for a wearable device, achieving a 40% reduction in size while enhancing battery life and functionality.• Component Selection Expertise: Spearheaded the selection and sourcing of components, balancing cost, performance, and supply chain constraints, significantly improving project timelines and budget compliance.• Standards and Compliance: Maintained strict adherence to IPC standards for PCB design and layout, ensuring all products met quality and regulatory requirements.• Collaborative Projects: Worked closely with cross-functional teams including mechanical, software, and production departments to ensure seamless integration of PCB designs into final product assemblies.• Continuous Professional Development: Committed to staying abreast of industry trends and advancements through regular participation in workshops, seminars, and certification courses in PCB design and manufacturing technologies.