David Diaz

Head of Hardware Design and Electronics @ Somos Internet

About

Electronics Engineer specialized in Hardware Development with over 7 years of experience designing schematic circuits and printed circuit boards (PCBs). Skilled in developing electronic products from prototyping to mass production for IoT, industrial, medical, and general consumer electronics applications. I incorporate the necessary considerations from the initial development stage to achieve optimal designs for manufacturing (DFM), assembly (DFA), testing (DFT), and EMC (Electromagnetic Compatibility) certification.I design circuits with digital, analog, and RF (Radio Frequency) signals for low-high speed applications, following best practices to ensure high signal integrity.I manage and oversee all processes in developing an electronic product, from system requirements to manufacturing and assembly of the final product.TECHNICAL SKILLSSoftware: Altium Designer, KiCad, Eagle, OrCAD and Cadence AllegroControllers: Hardware integration using Microcontrollers, Microprocessors, FPGAs, SoCs (System on Chip), and SoMs (System on Module).IoT (Internet of Things): WiFi, Bluetooth, GNSS (GPS, GLONASS), XBee, LoRa, and cellular network modules (3G, 4G, LTE).Communication Protocols: UART, SPI, I2C, RS232, RS485, CAN.High-Speed Protocols: PCIe, HDMI, MIPI-DSI, MIPI-CSI, DisplayPort, SATA, USB 2.0/SS, and Gigabit Ethernet (10/100/1000/2.5G/5G/10G).Storage and Memory Protocols: DDR3, DDR4, eMMC, SDIO, FlashCircuit Simulation Tools: TINA-TI, LTSpice, and Ansys SIWave for circuit analysis and optimization.Measurement Equipment: Oscilloscope, VNA (Vector Network Analyzer), Spectrum Analyzer, and Digital Multimeter.Let’s connect and explore how my expertise can contribute to your projects!

Country

Colombia

City

Antioquia

Industry

Electrical & Electronic Manufacturing

Skill

System on a Chip (SoC), SoM, High Speed Design, Hardware Development, Electronic Product Design, Hardware Design, DDR4, DDR3, Radio Frequency (RF), Analog Circuit Design, Digital Circuit Design, Internet of Things (IoT), Medical Devices, Consumer Electronics, Printed Circuit Board (PCB) Design, Altium, Eagle, KiCad, Printed Circuit Board Design, C

Experience

Head of Hardware Design and Electronics

Somos Internet

2025-1 - Present · 1 yr 9 mos

Colombia

Sr Hardware designer and head of development and validation of networking equipment for internet services. Schematics and PCB layout, component selection, hardware bring-up, and troubleshooting of devices such as Routers, Access Point, Switches, and Fiber Optic equipment. Collaborate with firmware and network teams to ensure performance, reliability, and compliance with industry standards. Support manufacturing processes, including prototype validation, testing, and optimization for mass production. Also involved in thermal analysis, power management, and continuous improvement of hardware Products.

Hardware Design Engineer

Mentor Designs

2022-3 - 2026-4 · 4 yrs 2 mos

Florida, United States

Development of medical-grade and consumer electronic products -Schematic and PCB design. -Creation of component libraries in Altium Designer using datasheets and IPC specifications. -Layer stack-up design. -PCB design for digital, analog, and wireless IoT (WiFi, Bluetooth) signals. -Impedance control calculations. -Development of products with biometric sensors such as SPO2 (blood oxygen saturation), heart rate, 5-electrode ECG, infrared and contact temperature sensors. -Hardware implementation with microcontrollers from Atmel, ESP32, Nordic Semiconductor, STM32, and NXP.

Hardware Design Engineer

2022-2 - 2026-4 · 4 yrs 3 mos

Colombia

Development of IoT, industrial, and consumer electronic devices -Software used: Altium Designer, KiCad, Eagle. -Schematic and PCB circuit design from prototyping to production. -Design of mixed-signal circuits: analog, digital, RF, and low/high-frequency communications. -Circuit design with Microcontrollers (STM32, NXP, ESP32, Arduino, Nordic Semiconductor, MSP430, Microchip PIC, and ATSAM), SoCs, and FPGAs (Xilinx, Lattice, iMX8M). -Carrier Board design for SoMs (Raspberry Pi modules, iMX modules, Variscite, AMD Xilinx SoMs). -Custom SoM design. -Integration of DDR3, DDR4, eMMC, and FLASH memories. -Signal and power integrity analysis and simulation. -PCB design following IPC standards. -Impedance control calculations and layer stack-up design. -High-density designs with blind and buried vias.

Hardware Engineer

TECREA S.A.S

2019-9 - 2022-2 · 2 yrs 6 mos

Medellín, Antioquia, Colombia

Development of IoT products and industrial control electronics: -Schematic and PCB design using Altium Designer, KiCad, and Eagle. -Design of low-power IoT products with WiFi, Bluetooth, GNSS, Mobile Networks, and XBee technologies. -Temperature controllers design. -PCB design with impedance control and antenna tuning. -Design of digital and analog circuits. -Manual assembly/soldering of components and PCB testing for prototypes. -Measurement and signal analysis using an oscilloscope, digital multimeter, spectrum analyzer, and VNA. PROJECTS -Development of military grade electrically heated marine window. -Development of a low power consumption tracking device using GPS/Glonass and 2G, 3G Mobile network modules technologies. -Development of an oxygen optimizer handheld medical device for patients with COPD (Chronic Obstructive Pulmonary Disease).

Component Engineer

SnapMagic

2018-5 - 2019-7 · 1 yr 3 mos

San Francisco, California, United States

-Verification and creation of high quality electronic component libraries for different types of electronic design software such as Altium, Eagle,Kicad, Orcad. -Ensure compliance with IPC 7351 regulations. -Projects managment and members of the engineering area, ensure the delivery of high quality component libreries to different electronic components manufacturers.