Electronics Hardware Engineer; Engineering Austin, TX

Enphase Energy is a global energy technology company and a leading provider of solar, battery, and electric vehicle charging products. Founded in 2006, our innovative microinverter technology revolutionized solar power, making it a safer, more reliable, and scalable energy source. Today, the Enphase Energy System enables users to make, use, save, and sell their own power. Enphase is also one of the most successful and innovative clean energy companies in the world, with more than 80 million products shipped across 160 countries.

Join our dynamic teams designing and developing next‑gen energy technologies and help drive a sustainable future!

The Enphase Power systems innovation team in the office of the CTO is responsible for defining, designing, integrating, and validating next‑generation system hardware solutions. The team is multidisciplinary, hands‑on, and focused on delivering robust designs from concept through production. Enphase Energy is seeking a Staff Electronics Hardware Engineer to develop, integrate, and validate system‑level electronic hardware for new and existing products.

This role is focused on system architecture, digital and mixed‑signal design, hardware/firmware integration, and full ownership of hardware execution from requirements to release.

• Create innovative system‑level embedded hardware designs to support next‑generation energy system products.
• Lead specification, design, schematic capture, prototyping, and debugging of complex circuits and PCBAs.
• Design digital circuits including processor/MCU support, memory, clocking, reset, and interface connectivity.
• Implement and debug digital interfaces including CAN, UART, I2C, and SPI.
• Interface digital subsystems with analog circuitry, including ADC and DAC integration.
• Define and validate mixed‑signal performance requirements such as signal conditioning, filtering, grounding, reference accuracy, noise coupling, and timing.
• Perform hands‑on board bring‑up, hardware validation, and troubleshooting using oscilloscopes, logic analyzers, protocol analyzers, and standard bench equipment.
• Collaborate closely with firmware engineers on peripheral enablement and board bring‑up; provide basic firmware‑level debug support where needed.
• Own PCB design quality with attention to signal integrity, EMI/EMC, manufacturability, and testability.
• Generate complete design documentation and release packages, including schematics, layout deliverables, BOMs, test plans, and manufacturing outputs.
• Support design transfer to manufacturing and resolve hardware issues through validation and product ramp.

• BS/MS in Electrical Engineering or closely related discipline.
• Staff level: typically 8+ years of electronics hardware/system design experience (or equivalent depth of experience).
• Strong digital and mixed‑signal hardware design skills with commercial product development experience.
• Demonstrated experience implementing and debugging CAN, UART, I2C, and SPI.
• Experience interfacing analog and digital circuitry, including ADC/DAC integration.
• Proven hands‑on ownership of both schematic capture and PCB layout.
• Familiarity with basic embedded firmware development for hardware bring‑up (register‑level/peripheral configuration/debug support).
• Proficiency with one or more ECAD tools such as Altium, OrCAD, KiCad, or Expedition (Xpedition).
• Strong troubleshooting ability within complex system environments and ability to drive issues to resolution.
• Ability to independently own technical work streams and deliver high‑quality results on schedule.

• Strong proficiency with Cadence OrCAD (schematic capture) and Allegro (PCB layout) preferred.
• Experience with analog circuit design, signal conditioning, and low‑noise mixed‑signal layout practices.
• Experience with isolated circuits and practical isolation boundary implementation.
• Familiarity with small switch‑mode power supplies (