PCB Design Freelancer

Hi! We're Charcoal.

The world is filled with primitive, dull products that don’t add much value to our lives. A desk is just a surface to hold things up or an article of clothing is just a surface on our skin. We're changing that by leveraging great design and engineering to unlock the potential of these everyday products that have remained stagnant for centuries.

Check out our products here - www.charcoal.inc

Our latest product: https://www.youtube.com/watch?v=ypQFMZZQqXQ

About the Role:

PCB Design Freelancer

This is a technical freelance role requiring attention to detail, design sensibility, and a deep understanding of electronics. The person should be based out of Bangalore.

Key Responsibilities:

• Convert schematic diagrams into optimized PCB layouts (including

  4-layer boards

  ) with proper stack-up planning.
• Select

  analog and power components

  based on application needs, availability, cost, and electrical performance.
• Design robust

  power supply circuits

  (buck/boost converters, LDOs, protection, filtering).
• Define

  harness routing

  and connector positioning, ensuring electrical safety and mechanical fit.
• Generate and manage all deliverables for fabrication and assembly:

  Gerbers, BOM, Pick-and-Place files

  , and

  3D views

  .
• Apply

  DFM and DFA principles

  and communicate with vendors during fabrication if needed.

Required Skills:

• Proficiency in PCB design tools like

  Altium Designer, KiCAD, Eagle, OrCAD, or EasyEDA

  .
• Solid understanding of

  analog circuit behavior, grounding techniques, and noise mitigation

  .
• Experience with

  harness and connector design

  , including

  power, data, and control cabling

  .
• Proven experience with

  multi-layer (especially 4-layer) PCB stack-ups

  for power, analog, and digital domains.
• Strong knowledge of

  DC-DC converters

  ,

  battery charging circuits

  , and

  load protection mechanisms

  .
• Ability to select components based on

  thermal, electrical, and mechanical parameters

  .
• Familiarity with

  IPC standards

  , EMC/EMI best practices, and thermal management.

Nice to Have:

• Familiarity with

  automotive or industrial harness standards

  (e.g., Molex, JST, TE connectors).
• Experience coordinating with

  PCB manufacturers and harness vendors

  , especially in India or China.
• Understanding of

  mechanical integration constraints

  in product enclosures.

Deliverables:

• Native PCB design files
• Gerber + drill files
• Bill of Materials (BOM)
• Pick-and-Place files
• Assembly notes
• 3D model (optional)
• Harness diagrams or cable schedules (if applicable)