Altium Designer Jobs

We are seeking an experienced Senior Electronics Engineer from Europe or the USA with expertise in wearable devices and IoT systems to help design and develop a wearable sensor board. The project involves PCB design, schematic development, and firmware programming for ECG sensors, Li-ion battery charging, USB communication, and an ESP32 MCU. Key Responsibilities: -PCB Design: Develop high-quality PCB layouts for a wearable sensor board, including ECG connectors, USB-to-UART interfaces, and battery charging circuits. -Schematic Development: Create and review schematics for the BG77 LTE module, ESP32, Li-ion charging, and sensor interfaces. -Firmware Programming: Implement and optimize firmware for the ESP32 MCU, including Wi-Fi/BLE communication, sensor data acquisition, and USB communicat...

We are building a solar-powered, low-power IoT field device used outdoors in orchards. We need an experienced PCB design engineer to develop a custom PCB that integrates and reliably powers the system. Scope (PCB only): 1) Schematic + PCB layout for a low-power embedded system 2) Power design: solar charging + battery management, stable rails, protection, brownout handling, and power-path switching 3) Interfaces for MCU + peripherals (camera, GNSS, cellular modem, temp/humidity sensor, RTC/power scheduler) 4) Connector selection, ESD/weather-related protection considerations, test points, and design for manufacturability Deliverables: production-ready Gerbers, BOM, pick/place, schematic, and design files (KiCad/Altium—your preference) Nice to have: Prior experience with solar/batt...

Please be careful, you must create the 3 real PCBs; we are not interested in virtual projects. After the 3 PCBs have been successfully tested here in our office, we will release the money following the rules of freelacer.com. I will agree on the cost of the work and the time of execution with the developer. I've already built some prototypes of a circuit capable of switching a single 230 V, 16–30 A line to 4, 8, or 12 outputs—without power loss—but none of them have reached the standards I expect. I have schematics, calculations, thermal measurements, and test logs: enough material to clarify every technical detail and speed up your work. I need a senior designer who can transform all this into a final solution, complete with ESP32 firmware, a multilayer PCB (4 or...

我正在开发一款带有智能 LED 的硬件模组，主控ESP32，需要一位经验扎实的硬件工程师协助完成从原理图到 PCB 连接图的设计。核心需求如下： • 智能 LED 电路：请为多颗可寻址 LED 设计驱动与电源部分，确保亮度与色彩控制稳定，并预留固件升级和热管理方案的接口。 • 无线通信接口：电路板需同时支持 Wi-Fi 与蓝牙，方便后期通过手机 App 或云端进行调光与状态监测。 • PCB 设计：输出完整的原理图、布线文件（Altium Designer 或 KiCad 均可）、Gerber、BOM 以及关键布线规范说明，力求尺寸紧凑、EMI 控制良好。 • 生产可行性：器件选型应以量产常用料为主，并在文档中标明替代料号。 • 交付物： 1. 原理图（PDF + 源文件） 2. PCB Layout（源文件 + Gerber） 3. BOM 与简要成本预估 4. 设计说明书（含测试要点与校准建议） 如有成功设计智能灯带、氛围灯或类似消费电子产品的经验，请在回复中简述项目要点与所用工具版本。我会根据方案完整度与以往案例选择合作。

Project Overview We are building a V1 industrial ESP32-S3 pulse controller for self-service car wash and vacuum stations. The device receives paid commands from a backend (MQTTS/HTTPS), and generates deterministic “coin pulses” into existing industrial controllers. This is not a hobby prototype. It is a field-deployed V1 pilot that must remain stable for years in harsh environments. Operating Environment • Outdoor installation (freeze/heat cycles) • Electrical noise: motors, pumps, inductive loads, relays/contactors • Expected ambient: −30°C to +40°C (design margin required) • Inside sealed IP enclosure can rise due to self-heating (design for up to ~+70°C internal with reasonable margin) • Humidity / condensation risk (design ...