Cristian S.

I am an electronics engineer with over 10 years of experience specializing in PCB design for consumer, IoT, and industrial products. My work covers complete PCB design development, including schematic capture, multilayer and HDI PCB design, mixed-signal and RF layout, and production-ready file preparation. I focus on clean stack-up planning, signal integrity, thermal management, and manufacturability to ensure each PCB design is reliable, compact, and scalable for mass production. Core Expertise • Custom schematic design and multilayer PCB layout • High-current, mixed-signal, and RF board design • Power supply and battery management circuits • Embedded firmware development in C/C++ • ESP32, STM32, nRF52, ARM Cortex MCUs • BLE, WiFi, LTE, GPS integration • Sensor integration (I2C, SPI, UART, ADC, PWM) • Low-power optimization • OTA firmware updates • Manufacturing-ready deliverables (Gerber, BOM, Pick & Place) My Approach I design hardware with firmware integration in mind from the beginning. This reduces redesign cycles and ensures stable bring-up. My process includes: • Architecture definition • Component selection based on performance and availability • Signal integrity and thermal-aware PCB layout • Firmware driver development and system integration • Prototype debugging and validation • Production file preparation I focus on clean routing, solid grounding strategy, stable power architecture, and scalable firmware structure. If you are looking for someone who understands both hardware and firmware and can deliver a complete, reliable embedded solution, I would be glad to support your project.