Chinese engineer for GR5331AENI + GH3026 Prototype Board

I am building a compact prototype that combines the Goodix GR5331AENI Bluetooth SoC with the GH3026 AFE and optical sensors on a single PCB for early-stage evaluation. I have a reference schematic and a rough placement; what I now need is a China-based hardware engineer who can turn that draft into a production-ready prototype package and have a few boards assembled locally.

The job starts with a design review: check my schematic, refine component selection, optimise power rails and antenna matching, then complete the full PCB routing in KiCad . After design freeze, create the full manufacturing pack—Gerbers, drill files, pick-and-place, and an organised BOM with local part numbers—then coordinate a fast SMT run with JCTPCB or other a Shenzhen/Huaqiangbei house so we receive working samples quickly. might need help in purchasing some of the local component

Deliverables
• Updated schematic and finished PCB layout
• Complete manufacturing files (Gerber, drill, CPL, verified BOM)
• At least 5 assembled and power-on-tested boards

Acceptance criteria
• GR5331 advertises over BLE at the expected TX power
• GH3026 streams sensor data through I²C/SPI as specified
• Standby current matches the low-power goals outlined in the datasheet

Clear Mandarin communication is essential because component sourcing and assembly will happen inside China. If you have hands-on experience with Goodix chips, Bluetooth antenna tuning, and fast local prototyping services, you will be able to move this project from draft to functioning hardware in the shortest possible time.