Electrical Engineer

Mesodyne; Somerville (MA); On-site; USD 110,000 - 140,000; Full time

Job summary

Mesodyne is seeking an experienced embedded hardware engineer to design and bring up digital/analog systems in our Somerville, MA offices. You’ll work with STM32 MCUs, I2C/SPI/CAN/USB, sensors, and actuators to deliver robust prototypes and first-article hardware.

You’ll own PCB design in Altium, multi-board assemblies, BOM management, and board bring-up. You’ll closely collaborate with mechanical engineering throughout the design cycle to ship reliable products.

Qualifications

• Solder microcontrollers directly to a circuit board (not just dev-board).
• Schematic capture and PCB layout in Altium including multi-board assemblies and flex boards.
• Hands-on experience taking a board from design through fabrication, assembly and bring-up.
• Strong hands-on debugging: oscilloscope, logic analyzer, SMD rework.
• Attention to detail balanced with ability to decide with incomplete information.
• Balance doing things properly with quick demos under time constraints.

Responsibilities

• Design and implement embedded systems using STM32 MCUs and interfaces (I2C, SPI, CAN, USB).
• Interface with sensors and actuators; apply analog principles (impedance, feedback).
• Design power electronics including motor drivers and buck/boost converters.
• Own PCB design in Altium; manage BOM and multi-board assemblies.
• Board bring-up and debugging with strong hands-on debugging skills.
• Collaborate with the mechanical engineering team throughout the design process.

Skills

Soldering to PCB

Hands-on debugging

Cross-functional collaboration

Attention to detail

Time-efficient demoing

Tools

Altium

Oscilloscope

Logic Analyzer

SMD rework

Job description

WHAT YOU'LL DO

Digital systems & embedded

Design and implement embedded systems using microcontrollers (we use STM32) and low speed digital (I2C, SPI, CAN, etc) and USB.

Analog

Interfacing with sensors (e.g. current, pressure, temperature sensors) and actuators (constant current drive, piezoelectrics, etc). Deep understanding of analog principles (impedance, frequency response, op-amps, etc).

Power electronics

Implement motor drivers, buck and boost converters, and power distribution systems. Must be comfortable selecting the converter topology and controller ICs and implementing a reference design.

PCB design

Own schematics and layout in Altium, including multi-board assemblies, BOM management, and flex boards. Demonstrated ability to own a board design from concept to completion. Experience with connectors and wire harness design is a plus.

Board bring-up & debugging

Take ownership of both delivering a circuit board working after designing and ordering it, and the ability to debug with strong hands-on debugging skills: oscilloscope, logic analyzer, and SMD rework. Demonstrated ability to track down and solve "unreproducible" bugs.

Cross-functional collaboration

Must be able to collaborate with the mechanical engineering team throughout the design process.

WHAT YOU BRING

Must-haves

• Demonstrated ability to solder microcontrollers directly to a circuit board — not just dev-board experience
• Schematic capture and PCB layout experience in Altium, including multi-board assemblies and flex boards
• Hands-on experience taking a board from design through fabrication, assembly, and bring-up
• Strong hands-on debugging skills: oscilloscope, logic analyzer, SMD rework
• Attention to detail balanced with ability to make decisions with incomplete information
• Ability to balance doing things properly with hacking something together for a demo in a time crunch

Nice-to-haves

• Experience with USB-C PD (power delivery) is a plus but not required
• Experience with CAN bus is a plus but not required
• Experience with batteries and BMS (battery management systems) is a plus but not required