Job Title: Senior PCB Design & Layout Engineer RF / Cellular Hardware Location: Remote Experience: Senior-level PCB design and layout experience Job Summary We are seeking an experienced PCB Design & Layout Engineer to support modifications to an existing electronic board as part of a cellular modem replacement project. The engineer will translate hardware design requirements into an updated PCB layout, ensuring that RF routing, antenna interfaces, power delivery, and board-level implementation meet the design requirements. Experience with LTE/4G/5G cellular hardware is preferred. Familiarity with Nordic Semiconductor nRF9151 or nRF91M1 and low-power electronic devices is a plus.

Key Responsibilities

Review existing schematics, PCB layouts, and hardware design constraints. Modify the existing PCB layout to accommodate a replacement cellular modem. Update component placement, routing, footprints, and board interconnections as required. Implement RF layout practices, including controlled-impedance routing, grounding, and antenna-feed routing. Support power-supply routing, grounding, and signal-integrity considerations. Coordinate with the RF/hardware engineer on schematic changes and component placement. Prepare updated PCB design files and manufacturing deliverables. Support prototypes bring-up, layout troubleshooting, and design revisions. Required Skills Hands-on PCB design and layout experience. Experience modifying existing PCB designs and incorporating component or modem replacements. Understanding multilayer PCB design, grounding, routing, and signal integrity. Ability to interpret schematics and work with hardware design engineers. Experience using PCB CAD tools such as Altium Designer or Cadence Allegro. Preferred Skills RF PCB layout experience for cellular or wireless products. LTE/4G/5G modem integration projects. Controlled-impedance routing and antenna-feed layout. Nordic nRF9151 or nRF91M1 hardware familiarity. Low-power and battery-operated device design. Prototype fabrication, board bring-up, and design-for-manufacturing (DFM). Ideal Candidate A PCB layout specialist who has worked on wireless or cellular hardware and can efficiently update an existing board to support a new modem while preserving RF performance and manufacturability.