Electrical Engineering Intern (Summer 2026)

** U.S. Citizens Only **

About Us

Ultrasonium is a Y Combinator-backed, NSF-funded deep-tech startup pioneering a novel approach to metal 3D printing by harnessing the power of ultrasonics. Our core technology enables faster printing, lower production costs, and reduced material waste compared to conventional laser powder bed processes. 

Joining Ultrasonium means working directly with the founding team on hardware that does not yet exist anywhere else in the world. You will have real ownership over meaningful technical work from day one.

The Role 

We are looking for a motivated Electrical Engineering Intern to help design, build, and test the electronic systems that power our novel metal 3D printing platform. This role spans circuit design and simulation, PCB development, electrical integration, and hands-on lab work in a fast-moving hardware startup environment. You will work alongside the founding engineering team and gain rare exposure to the full hardware development cycle.

You might be a great fit if … 

• Want to work on hardware that doesn’t exist yet. You want to see your designs running in an actual machine, not just in a simulation.
• Are comfortable with ambiguity. Novel systems mean novel problems. You enjoy figuring things out from first principles.
• Want your work to matter quickly. At a lean startup, your contributions go directly into the machine — no waiting for a large organization to move.
• Are curious about the intersection of electrical engineering, acoustics, and advanced manufacturing.
• Thrive in collaborative, fast-paced environments and communicate clearly across disciplines.

Key Responsibilities

• Support the design and development of electrical circuits and systems for a novel metal additive manufacturing platform, spanning power delivery, signal conditioning, and control electronics.
• Assist in circuit simulation and analysis using industry-standard tools (e.g., LTspice, SPICE, or equivalent) to validate designs before hardware build.
• Participate in PCB schematic capture and layout for prototype boards, following good design practices for noise, thermal management, and manufacturability.
• Contribute to the bring-up, characterization, and debugging of electrical assemblies using standard lab equipment including oscilloscopes, multimeters, and signal generators.
• Support integration of electrical subsystems with mechanical and software components across the full system.
• Assist in developing and maintaining electrical documentation including schematics, BOMs, and test records.
• Perform hands-on assembly, rework, and testing of prototype hardware in a lab environment.
• Participate in design reviews and contribute to iterative improvement of electrical systems based on test results.

Required Qualifications 

• Currently enrolled in a Bachelor’s or Master’s program in Electrical Engineering, Computer Engineering, or a closely related field.
• Coursework in circuits, electronics, or power systems with hands-on lab experience.
• Familiarity with basic circuit simulation tools and schematic capture.
• Comfort with standard electrical test and measurement equipment.
• Attention to detail and a safety-conscious mindset, particularly around high-power systems.

Preferred Qualifications 

• Exposure to PCB design software (KiCad, Altium, Eagle, or similar).
• Experience with embedded microcontrollers or development platforms.
• Familiarity with power electronics, analog design, or RF/high-frequency circuits.
• Prior internship, co-op, research lab, or project team experience building real hardware.
• Any exposure to additive manufacturing, industrial equipment, or hardware startups is a plus.

What we offer … 

• Hands-on experience at the frontier of metal additive manufacturing at a Y Combinator-backed startup — work you won’t find at a larger company.
• Direct mentorship from the founding engineering team, including PhD-level expertise in ultrasonics and materials.
• A lean, collaborative environment where your ideas are heard and acted upon quickly.
• Flexible scheduling 
• The opportunity to contribute to NSF-funded research with real-world industrial applications.
• Potential for equity incentives and a quick promotion timeline