Robot engineer

I am looking for a versatile developer for a permanent part-time collaboration on a DIY electronics project. We are building a line of kits that allow a person with no experience to assemble a finished device in an evening (smartwatch with an LED matrix, lamp with addressable lighting, weather station, plant sensor, etc.).What needs to be done: Evaluate device ideas: list of components, estimated cost, assembly complexity, feasibility. Assemble working prototypes (hardware + firmware) Test how feasible it is to provide the device to a novice: where they might struggle, what can be simplified, whether soldering can be avoided.Who I am looking for: Practical experience with ESP32 / Arduino: firmware, connecting peripherals (addressable LEDs, I2C sensors, displays). Ability to solder and work hands-on with hardware. Familiarity with existing firmware (WLED, AWTRIX, ESPHome, etc.) and sourcing components in Ukraine. Plus: 3D printing / modeling enclosures, experience documenting the assembly process.

There is a board with esp32, sim800l, mini 560pro 5v. It has two pulse inputs (coin, bill). 1. A 6-pin connector (mdb) needs to be made. 2. Integrate power into the board, it can be replaced with ti, Pololu D24V5F3 6-30V 3.3V / 1.5A, as a choice or integrate the existing module into the board. 3. Replace sim 800l with another module (the pins fit, but differ in places). Gerber files are available, there are no schematics, base jlpcb.