Firmware Engineer (Power Electronics)

About Xnergy

Xnergy builds high-power wireless charging for industrial robots and autonomous machines like AGVs and AMRs. No plugs, no connectors, no one walking a robot to a charger. We’re headquartered in Singapore, backed by venture and sovereign investors, with teams in Suzhou and Mexico.

About the role

Firmware at Xnergy sits right on top of the power stage. Your code decides how kilowatts move safely across an air gap, many times a day, on customer sites around the world.

We’re hiring an engineer with at least 3 years in embedded firmware who has worked hands-on with power converters. We’re open on level. If you’ve owned firmware architecture and led others, we’ll bring you in as a Senior. If you’re earlier in that path, there’s room to grow into it here. You’ll work closely with hardware, software and Solutions engineers, take products from prototype to production, and stay with them when issues come back from the field.

What you’ll do

Design and implement real-time digital control for high-power conversion stages (APFC, DC/DC, DC/AC) on DSP/MCU

Build and maintain firmware for bootloaders and field updates, protection and fault handling, and wired and wireless communication stacks

Plan and run testing across unit, bench, integration, system and production test

Root-cause hardware and firmware issues in development and field escalations

Build Python test tools and scripts for the lab and production line

Contribute to MCU selection, schematic reviews and the product roadmap

At Senior level, you’ll also own the overall firmware architecture, lead the testing strategy, mentor other engineers and run code and design reviews.

What you’ll need

Degree in Electrical, Electronic, Power Electronics or Computer Engineering, or a related field

3+ years in embedded firmware, with hands-on experience in digital control of power converters

Strong C on real-time DSP/MCU platforms (TI, ST, Infineon, NXP, Microchip): interrupt-driven control loops, ADC/PWM timing and fixed-point maths

A solid grasp of control theory, including loop design, compensators and stability, and topologies such as PFC, LLC/resonant and full-bridge

Protocol implementation across CAN/CAN-FD, Modbus, RS-485, UART, SPI and I2C, plus at least one wireless stack (BLE, Zigbee, Wi-Fi, LoRa, Matter, NFC)

Hands-on lab skills with power hardware: scopes, differential and current probes, and safe debug practice

Good engineering habits: Git, code review, documentation and release management

What will make you stand out

5+ years in firmware, with 3 or more on converters above 1kW

A Master’s degree in a relevant field

Experience with resonant converters or inductive power transfer

Model-based design (MATLAB/Simulink, PLECS, SPICE)

An RTOS such as FreeRTOS or Zephyr

Working knowledge of safety, EMC and regulatory standards for power and radio products, such as RED, RoHS, EU CSA, IEC 62368-1, EN 55011, EN 61000, ETSI EN 301 489, EN 300 328, EN 303 417, EN 62311, IEC 61851 and ISO 15118

Why Xnergy

You’ll be on a small team where your firmware ships into real products, not a slide deck. You’ll see your work go from bench to customer site, with room to travel and grow as the company scales.

How to apply

Send your resume to [email protected] with “Firmware Engineer” in the subject line. Tell us briefly about a power converter you’ve written firmware for.

Xnergy is a Venture Capital and Sovereign-backed startup based in Singapore. Established in 2017, Xnergy’s mission is to be a leader to provide power management solution in the area of AGV (automated guided vehicle), Robotics and EV (Electric Vehicle) application globally through Xnergy’s state-of-the-art wireless charger.

Xnergy is a product engineering company. Our wireless products for the AGV market ranges from 1 kW to 10 kW and with multi voltage platform of 24/48/80 (planned) VDC output voltage. Our core value is engineering: starting from converter, expanding to power device packaging, power semiconductor and IC design. We aim to provide the best charging experience for our customers.

As an innovative and energetic startup that wants to make a huge impact to the world of clean energy, we are expanding rapidly. We have a subsidiary company in Shanghai incorporated in 2018. The company focuses on the China market. We seek people who is passionate to our cause to join us, we do not judge, prejudice against your gender, background and culture. As long as you want to dedicate to our team, we welcome you. You will have the chance to see the future of e-mobility yourself by joining our team. There will be exciting chances to travel and meet people.