Hello, Everyone! I am an embedded systems engineer, PCB designer, and firmware developer with over 10 years of professional experience. I provide complete, end-to-end solutions for a wide range of ele... Read more

Hello, Everyone! I am an embedded systems engineer, PCB designer, and firmware developer with over 10 years of professional experience. I provide complete, end-to-end solutions for a wide range of electronic device designs, supporting clients from initial concept and schematic design to PCB layout, prototyping, assembly, and full system testing. I have strong expertise in high-speed PCB design, including PCIe and DDR4 routing, as well as precise impedance matching for reliable performance at high frequencies. I also specialize in RF and antenna design for modern IoT devices, ensuring optimal signal integrity and system efficiency. In addition, I have deep experience in ultra-low power design, achieving microamp and sub-microamp current consumption for battery-operated and wearable systems. I specialize in firmware development for LTE-GPS-LoRa-BLE-based embedded systems (nRF52 series), including low-power optimization and high-precision sensor acquisition. My focus is on delivering robust, production-ready solutions with high reliability and performance. 🔥 Main Skills 👉Embedded Systems 👉Schematic Circuit Design(Low Power consumption Design) 👉Firmware Development(All Microcontrollers-STM32, TMS320, ESP32, FPGA, nRF52, Raspberry PI) 👉PCB Design(High speed signal routing, PCIe, DDR4, 18 multi-Layers Design, RF antenna Design,) using Altium Designer, KiCad, EasyEDA, Fusion 360(No problem in DFM-JLCPCB) 👉IoT with nRF52(BLE), LoRa(for example, SX1262), LTE(SIM card interface), GPS and other variety of sensors 🛠️Tools & Technologies: 👉 nRF5 SDK / nRF Connect SDK 👉SEGGER Embedded Studio + J-Link debugging 👉 C/C++ (bare-metal & RTOS) 👉 BLE GATT, LTE AT commanders, custom wireless protocols 👉SPI / I2C / UART / ADC integration 👉Low-noise measurement systems (nA level) 👉STM32CubeIDE, Cube MX, Keil, CCS, Arduino, ... 👉MQTT, Free RTOS, Zephyr RTOS 🚀 I can support your project from concept to production.

Hi, I'm Cillian McCay and I am a Part-Time Student at Ulster University studying Mechatronic Engineering while working Full-Time at Sepha. I've a Foundation Degree in Mechatronic Engineering while wor... Read more

Hi, I'm Cillian McCay and I am a Part-Time Student at Ulster University studying Mechatronic Engineering while working Full-Time at Sepha. I've a Foundation Degree in Mechatronic Engineering while working towards a Full Degree. While doing this I have been working full time which has gave me the opportunities to gain and improve my skills in Solidworks and Solid edge. it has also allowed me to gain an insight into the Industry over the past 4 years. in these 4 years I have worked on small to big projects ranging at lowest £25,000 to highest £190,000. for these projects I was in control of; • review plans and specifications according to the plan. • Manage to oversee the work of subordinate staff contact architects or Engineers. • Prepare plans, details, specified and cost estimated of plumbing, heating, ventilating, air conditioning and general piping system. I have also worked on product design which I currently do at Sepha for innovation and development of specialised, high quality equipment for use in the manufacture of pharmaceutical blister packs, medical device and healthcare products.