Hire the Best Hardware Prototyping Specialists in California

I am a senior electronics and embedded systems engineer with 47 years of experience in hardware design, firmware development, PCB layout, debugging, testing, and product development. I help clients turn electronic product ideas, prototypes, and hand-wired circuits into working embedded systems and manufacturable PCB designs. Typical projects I can help with include: * ESP32 and STM32 / STMicroelectronics MCU-based products * Power conversion and low-power battery-powered product design * Custom wireless and RF communications, including LoRa and ESP-NOW peer-to-peer networking * Circuit design and component selection for manufacturing * Schematic entry and multi-layer PCB design. * Ordering fabs and coordinating assembled boards. * C/C++ firmware for sensors, displays, audio, wireless, and control systems * Embedded graphics and touchscreen user interfaces using LVGL * Digital audio filtering, FFT spectrum analysis, and voice activity detection * Cloud API integration for speech-to-text, text-to-speech, and language translation * Embedded bus and peripheral interfaces: I2C, SPI, I2S, UART, RS-485, CAN, and SD/MMC * Prototype debugging and board bring-up * Converting breadboard prototypes into clean PCB designs * Design reviews before manufacturing * Analog and digital circuit troubleshooting * Production-oriented improvements for reliability and manufacturability I have founded and managed engineering companies and consulting firms, led technical teams, and helped bring electronic products from initial concept through prototype, testing, manufacturing, and production. For clients, this means fewer design mistakes, faster debugging, lower development risk, and a clearer path from concept to a working, manufacturable product.

I'm a biomedical engineer with a variety of skills spanning electronics, 3D printing, and CAD. I'm looking to help individuals with their initial prototypes so that they can take ideas to the next level.

Versatile engineer focused on electronics and product design, with strong emphasis on high-complexity printed circuit board designs and a focus on design for manufacturability. I design, build, program, and test prototypes with in-house tools. I have served a wide variety of industries and have developed initial concepts and prototype devices as well as producing products that go into full scale production manufacturing. I work with clients and testing services to bring their product through regulatory and safety compliance testing and certification. Extensive design experience on Altium Designer, including detailed layout incorporating 3D CAD models. Certified IPC Designer Council PCB Designer (CID). Whether developing a brand new idea at early concept stages, developing or refining prototypes to validate the product, or taking the product into manufacturing and production, I enjoy providing you with solutions that are suitably for your needs. I am a graduate of the California Institute of Technology (Caltech), with a B.S. in Engineering and Applied Sciences. I am located in the Pasadena / Los Angeles-area. I am a U.S. Citizen and am available for travel domestically and internationally. Key offerings: • System analysis and design, including key technical and market considerations for success • Electronics design and printed circuit board (PCB) layout (Altium) • Mechanical CAD work to supplement the electronics, including sheet metal work (Alibre) • Develop bare-metal firmware and embedded-OS software • Assemble, build and test prototypes • Process regulatory and safety testing and certification • Manage product manufacturing and logistics • Perform design reviews to identify problems and recommend improvements • Troubleshoot and fix failed devices, including repair of circuit boards I can use many formats of customer-supplied data from other electronics design software, and mechanical data from Solidworks and other standard CAD data formats. I have developed a wide variety of circuit boards, including: • Standard 2- and 4-layer boards with surface mount and through-hole components • Custom spec boards (e.g. high layer counts, blind/buried vias, HDI) • High-speed / high-density boards with length-matching and tuning, controlled impedance • Circuit boards with complex mechanical dimensional requirements • Flex, rigid-flex, and semi-flex board assemblies with features on multiple work planes • Products incorporating Bluetooth, BLE, WiFi, and serial interfaces (SPI, I2C, LIN, RS-232, RS-485) I design, assemble and test prototype electronics with in-house equipment. For volume production, I can arrange turn-key manufacturing for you. Partial list of equipment: • SMD assembly and rework prototyping tools • CNC PCB milling system • SMD Pick-and-place for short-run PCB assembly (over 3,000 CPH) • 3-axis CNC mill for enclosure / custom metal fabrication • Multiple 3D Printers. Print volumes up to 14" x 14" x 12.6" (355 x 355 x 320 mm) • 4-Channel 500 MHz digital storage oscilloscope, • 34-channel 500 MSPS logic capture/analyzer • Thermal imaging camera • Metrology grade 3D scanner Please feel free to challenge me with your tough projects!

I have invented multiple hardware products before and I will work with you to make your new product on a purely work-for-hire (I keep no IP rights) basis. I will help you with electrical engineering, PCB design, Mechanical design, design for manufacturing or anything else you need. I can mature a design form a basic sketch or refine a prototype to a manufacturable product. If you can dream it i can help you make it!

Hello! If you need an Electrical Hardware Design Engineer to take your idea and walking it through full cycle PCBA/System development from the proof of concept to fully functional prototype, that's me. I've been doing electronics work for the last couple of years, specifically rapid prototype development of tiny, wearable and battery operated devices, like earbuds, special purpose/medical watches, IoT and other devices required miniaturization efforts. I work with startups and understand stastups specifics - tight budget, fast turn-around times & a lot of uncertainty. I love what I'm doing: - Engineering Specification and Hardware Architecture Design; - BOM selection: low power consumption tiny MPUs and Audio DSPs (3.5mmx2.8mm with 0.35mm BGA pitch), small passives 01005 size, high efficient and battery operated switching regulators, tiny WiFi/BT chips and SoC; - Schematics Capture - experience with complex circuits and netlist, as small wearable; - PCB Layout for DFM - working with FAB houses in Asia and local to define high density layout rules, negotiating price and lead time the same time. I'm doing PCB Layout myself up to 8 layers and supervising CAD Team for more complex boards up to 32 layers - yes, I did it :-) Blind and laser via technics, power delivery planning, stackup definition, signal and power integrity rules, EMC/EMI. Tight component's placement and power noise decupling technics. Flex-rigid, flex and regular rigid boards from 0.11mm to 5.0mm thickness; - I have good sense of ME/PCBA integration in single device, worked closely with ME CAD Engineers and doing integration myself. My board's deliverables include 3D step file and all library. - Working on BOM procurement and kitting for proto build; - Working with FAB facilities to coordinate proto PCB fabrication - have direct local contacts and contacts in Asia - Working with PCBA facilities to assemble proto PCBAs - local and oversea; - PCBA's bring up, ME/PCBA integration, Firmware integration; - failure analisys and fixing issues; I'm working in the soul of Silicon Valley and have my own lab and tools to bring up prototype PCBAs, ME assembly/integration and firmware integration. Regular communication with my clients and vendors to sync and resolve technical issues as project management as well.

I am a tool maker and a problem solver. I have deep experience working with software including massive distributed systems and microscale IoT devices. I enjoy designing and building complex electro-mechanical systems and developing easy to use interfaces. I'm excellent at hardware design, software design, fabrication, development, testing, and delivery. I have good communication skills and strive to create simple effective robust solutions.