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Pentangle Tech Services

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Electrical Engineer

Pentangle Tech Services | P5 Group

Berkeley, CA

Other

Posted 20 days ago

Job description

Project Overview:

Our client's Electrical Engineering team is seeking immediate PCBA support for the QMU (Quad Management Unit), leveraging prior AMU/ZMU designs while adapting to updated system requirements. The QMU board enables power distribution, actuator control, sensor interfacing, and safety-compliant communication within Form’s battery energy storage system.

Core Responsibilities:

  • Own schematic capture in Altium (leveraging existing AMU/ZMU architecture).
  • Provide PCB layout oversight (signal integrity, power integrity, DFM considerations).
  • Support board bring-up and validation.
  • Ensure compliance with safety and industrial standards.
  • Partner cross-functionally with firmware, systems, and hardware teams.
  • Operate independently in a fast-paced, schedule-driven environment.

Technical Scope:

Design Functions

  • Power to and control of actuators, fans, and sensors
  • Power to and communication with downstream electronics
  • Safety-compliant communication pathway between quad skid and pack system

Communication Interfaces

  • 1Gbps (1000BASE-T1) Single Pair Ethernet
  • CAN-FD
  • SPI / UART / isoSPI / I2C / JTAG

Critical Components

  • Compute: MCU (LQFP), MPU SOM (SMARC carrier)
  • Ethernet: Switch (196-pin BGA, 0.8mm pitch), PHYs
  • Power: 48V input, 24V/5V buck converters, 3V3/1V8/1V1 LDOs
  • Peripherals: IO expanders, ADCs, DACs, motor drivers, high-side drivers

Must-Haves:

  • 5+ years electrical design experience (10+ preferred)
  • BS/MS in Electrical or Computer Engineering
  • Strong Altium experience
  • Schematic capture ownership experience
  • PCB layout experience (multi-layer boards, controlled impedance preferred)
  • Experience with:
  • 48V power systems
  • High-speed Ethernet (1000BASE-T1 highly important)
  • CAN-FD
  • Data acquisition and control systems
  • Board bring-up + full product development lifecycle exposure
  • Strong understanding of safety/compliance in high-power or chemical environments
  • Familiarity with UL standards: UL1998, UL1973, UL9540, UL991
  • Strong communication and cross-functional collaboration skills

Nice-to-Haves:

  • 10+ years of experience
  • Energy storage / EV / automotive / industrial background
  • Experience with SOM/smart carrier interfaces
  • Deep hands-on PCB layout execution (not just review)

Apply