Senior Electrical Engineer

Dephy, Inc.•Boxborough, MA

35d•$129,000 - $155,000

About The Position

As a senior electrical engineer at Dephy, you’ll support and expand across all aspects of our embedded systems and wearable technologies. You’ll develop and prototype analog circuits to power wearable devices, along with microcontrollers and microprocessors to drive them. Our devices’ electromechanical characteristics, software platform, and controllers are highly integrated; you'll work closely across disciplines with mechanical, software, and control engineers to design these systems.

Requirements

Be a good human - get along with the team, build strong working relationships, and execute on Dephy’s Values.
Bachelor’s degree in Electrical Engineering (or related field) with 7+ years of relevant experience.
Proven track record of independently designing PCBAs, sourcing quick-turn prototypes, and integrating them into complex electromechanical systems in a fast-paced environment.
Strong analog and digital circuit design skills, including mixed-signal systems involving microcontrollers, ADC/DACs, wired communications, switch-mode power supplies, and radio modules.
Experience designing multi-layer PCBs with attention to signal integrity, EMC, and tight integration with mechanical assemblies. Proficiency with PCB design tools such as Altium, KiCAD, Eagle, or similar.
Experience with high-speed digital circuits, including microprocessors, memory interfaces, and inter-processor communication.
Hands-on experience bringing up, debugging, and validating hardware and associated firmware, including embedded programming on microcontrollers (e.g., STM32, PSoC, or similar) using C/C++.
Demonstrable knowledge of power electronics, motor control, and battery systems, including converters (AC/DC, DC/DC, DC/AC), inverters, BLDC/DC/stepper motors, PWM/FOC control strategies, and lithium-ion battery management concepts.
Proven experience in designing and executing test plans, performing engineering analyses, and producing clear technical documentation, including specifications and test reports.
Strong hands-on prototyping and debugging skills, including the use of oscilloscopes, multimeters, function generators, and soldering equipment.
Experience leading the collaboration across disciplines, troubleshooting issues with engineers or clients, and clearly communicating technical concepts.
Demonstrated ownership, attention to detail, and self-sufficiency, along with experience mentoring junior engineers, co-ops, or interns.
Familiarity with relevant safety, EMC, and regulatory standards, and comfort working in a hands-on lab environment.

Nice To Haves

Utilize tools such as SolidWorks, MATLAB/Simulink, SPICE, and other engineering tools for design, modeling, and simulation.
Work with embedded communication protocols such as SPI, I²C, UART, CAN, and Ethernet.
Apply knowledge of control theory, including PID control and state-space modeling, in embedded or electromechanical systems.
Experience working on robotics, exoskeletons, active prostheses, or other advanced electromechanical systems.

Responsibilities

Lead and manage cross-functional engineering projects, including planning, scheduling, and communicating progress to stakeholders.
Maintain electrical component inventory and support parts sourcing and lifecycle management.
Apply systems-level engineering practices, including requirements management, trade-off analysis, and full participation in the product development lifecycle.
Implement and support hardware and firmware testing frameworks, including hardware-in-the-loop testing, CI/CD workflows, and Python-based test automation.
Support product certification and compliance processes, including standards such as FCC, UL, and IEC.
Contribute to the development of products involving radio communication technologies (e.g., Bluetooth, Wi-Fi, 802.15.4).