I

IONATE

Hybrid intelligent transformer powering smart grids

Principal Power Electronics Engineer

Full-TimeUpdated on 10/23/2026
No salary listed
Expert
Bachelor's
London, UK
HybridHybrid schedule requires attendance at the Hammersmith office 3–5 days per week; travel may be up to 10%.
Electrical EngineeringPower Systems Engineering

About the job

Requirements
  • A degree in Electrical & Electronic Engineering, Power Electronics, or equivalent, and extensive experience in end-to-end product development from concept through commercialisation.
  • A strong track record designing and delivering high-voltage, high-power power electronics converters.
  • Deep understanding of advanced converter topologies such as CHB, LLC, DAB, and MMC, and their applications in grid-connected systems.
  • Expertise in power electronics design, including component selection, magnetics, control interfaces, and system-level integration.
  • Experience with circuit modelling, simulation, and PCB design using tools such as SPICE, MATLAB/Simulink, and Altium or equivalent.
  • Hands-on laboratory testing, validation, and debugging experience using equipment such as oscilloscopes, power analysers, and grid simulators.
  • Experience designing for manufacturability, reliability, and compliance in production environments.
  • Technical leadership experience, including setting technical direction, leading design reviews, and mentoring engineers.
  • Willingness to travel nationally and internationally for testing, commissioning, or conference presentations, up to 10% of the time.
  • Availability to work from the Hammersmith office 3–5 days per week, depending on project deadlines.
Responsibilities
  • Lead the architecture, design, and development of advanced power electronics systems for grid-connected applications.
  • Design, prototype, and validate power conversion systems (AC-DC, DC-DC, and AC-AC), including high-frequency and high-power topologies.
  • Develop mixed-signal circuits, including ADC sensing chains, PWM control, and gate drivers for high-performance converters.
  • Oversee and contribute to PCB design and layout, emphasising signal integrity, power density, and manufacturability.
  • Lead EMI/EMC design and compliance activities to ensure products meet regulatory standards for grid-connected equipment.
  • Lead system-level validation strategies, including test planning, verification, and certification activities.
  • Conduct and oversee root-cause analysis and debugging across prototype and production stages.
  • Support laboratory bring-up, testing, and performance optimisation of power electronics systems.
  • Own hardware design from concept to production and ensure compliance with safety, quality, and international standards.
  • Act as Technical Lead for key power electronics development, defining system architecture, technology choices and trade-offs, and validation plans.
  • Drive design decisions across converter topologies, control strategies, magnetics, and system integration.
  • Lead technical reviews, mentor engineers, and set best practices across power electronics activities.
  • Create and maintain engineering documentation, including system requirements, design specifications, technical analyses, and testing reports.
  • Contribute to technical presentations, product documentation, and customer-facing materials.
  • Ensure adherence to relevant industry standards and internal engineering processes.
Desired Qualifications
  • Experience designing and testing high-voltage power electronics systems such as Power Conversion Systems (PCS), EV chargers, Solid-State Transformers (SST), HVDC/STATCOM, or medium-voltage variable frequency drives.
  • Experience designing systems to meet EMC/EMI compliance requirements.
  • Experience designing and testing commercially ready systems for CE/UL/TUV certification, including working with external certification bodies.
  • Familiarity with system-level control of grid-connected converters, including grid synchronisation, protection, and stability considerations.
  • Background in volume manufacturing environments, including design for cost optimisation, yield improvement, and supplier engagement.
  • Understanding of energy systems applications such as DC grids, renewable integration, or energy storage systems.

About the company

IONATE provides a hardware-software solution to modernize electricity grids. Its Hybrid Intelligent Transformer (HIT) replaces traditional transformers and combines reliable power conversion with dynamic control, using a patented magnetic core design to reduce energy losses. The HIT is coordinated by Aurora, an AI-enabled platform that delivers real-time data and control of voltage, reactive power, and harmonics to form a connected smart grid. The company differentiates itself by integrating the transformer hardware with an AI-powered software stack to optimize grid performance and supports deployments through pilots and licensing, with expansion plans including the U.S. market.

Company Size

11-50

Company Stage

Series A

Total Funding

$22.7M

Headquarters

London, United Kingdom

Founded

2019

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Simplify's Take

What believers are saying

  • IONATE won World Economic Forum Technology Pioneer status in 2026, strengthening credibility.
  • IEA's 2026 Innovation report highlighted IONATE as a market-ready grid bottleneck solution.
  • GM's July 2026 rollout opens a reference customer in America's industrial heartland.

What critics are saying

  • IONATE still depends on one-off pilots; GM, JST, and Magtech must convert quickly.
  • Transformer manufacturing and utility qualification require long cycles, delaying revenue into 2027.
  • Without mass utility adoption, IONATE's capital intensity starves it before scale.

What makes IONATE unique

  • IONATE's HIT pairs transformer hardware with Aurora software, creating controllable grid nodes.
  • July 2026 GM Romulus deployment proved U.S. manufacturability for 3MVA IEEE units.
  • June 2026 Magtech and February 2026 JST partnerships extend commercialization across factories and data centers.

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Benefits

  • Company Equity
  • Health Insurance
  • Dental Insurance
  • Professional Development Budget
  • Flexible Work Hours
  • Hybrid Work Options
  • Commuter Benefits

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

-2%

2 year growth

0%
Automotive World
Jul 24th, 2026
Ionate and GM team up on smart grid tech for Romulus plant.

Ionate and GM team up on smart grid tech for Romulus plant. Ionate's Aurora platform turns each HIT into a control node, which could change how manufacturers participate in grid operations * July 24, 2026 Ionate has announced a collaboration with General Motors to deploy its hybrid intelligent transformer (HIT) technology at GM's Romulus, Michigan plant, marking the deeptech firm's entry into the US market. The Romulus facility produces 10-speed transmissions for GM's full-size trucks and SUVs, and received a US$300 million investment to expand capacity. HIT technology provides real-time monitoring of power quality and consumption at sub-millisecond resolution, detecting and resolving disturbances before they affect plant operations or the wider grid. The system integrates into existing substations at greater than 99% efficiency. In average deployments, the technology enables grids to accommodate 33% more distributed energy resources, carry 25% more power without upgrading poles and wires, and reduce wasted power by 6%. Each HIT also connects to Ionate's Aurora platform, functioning as a control node that contributes to broader grid capacity improvements. Industrial electrification, data centre growth and AI-driven power demand are placing new strains on infrastructure not designed for today's scale or complexity. Matthew Williams, founder and Chief Executive of Ionate, said the deployment marked a step towards bringing solid-state intelligence to industrial power networks. Luis Cervantes, executive director of manufacturing excellence at GM, said the technology would enhance the plant's energy management and benefit the wider grid.

Yahoo Finance
Jul 23rd, 2026
GM and IONATE deploy smart grid tech at $300M Michigan plant to modernise US power infrastructure

IONATE, a deeptech company developing hardware and software for smart power systems, has announced a collaboration with General Motors to deploy its Hybrid Intelligent Transformer technology at GM's manufacturing plant in Romulus, Michigan. This marks IONATE's entry into the US market following projects across European grids. The technology can detect and resolve power flow issues in real time before they affect operations or the grid. It will be installed at GM's 900,000 sq ft Romulus facility, which recently received a $300 million investment to expand production capacity for 10-speed transmissions. The deployment will provide GM with real-time monitoring of power quality and consumption at sub-millisecond resolution, improving energy resiliency and efficiency. GM becomes among the first US industrial users to deploy this smart energy infrastructure.

IONATE
Jul 23rd, 2026
IONATE and General Motors collaborate to modernize U.S. electrical infrastructure with smart grid technology.

IONATE and General Motors collaborate to modernize U.S. electrical infrastructure with smart grid technology. July 23, 2026 LONDON - 30 June 2026, 08:00 AM ET - IONATE, a deeptech company building the hardware-software backbone for smart power systems, today announced a collaboration with General Motors to bring its Hybrid Intelligent Transformer (HIT) technology to GM's manufacturing plant in Romulus, Michigan. The collaboration marks IONATE's entry into the U.S. market following successful projects across European grids and reflects a shared focus on modernizing critical electrical infrastructure for a new era of power demand. IONATE's HIT technology can sense and resolve power flow issues in real time before they affect operations or the surrounding grid. The technology will first be installed at GM's 900,000 sq. ft. Romulus facility, which is currently scaling production of 10-speed transmissions used in GM's full-size trucks and SUVs following a recent $300 million investment to expand capacity. The deployment will provide GM with real-time visibility and control into power quality and consumption at sub-millisecond resolution, enhancing energy resiliency, quality and efficiency of the plant's energy usage - while also benefitting the entire grid by identifying and preventing issues that could lead to outages before they happen. It positions GM among the first industrial users in the U.S. to deploy this smart energy infrastructure, offering a potential model for manufacturers, data centers and grid operators facing growing pressure to modernize energy systems without waiting for broader grid upgrades. "Deploying the Hybrid Intelligent Transformer with General Motors marks a significant step in reinforcing industrial power infrastructure with solid-state intelligence," said Matthew Williams, founder and CEO of IONATE. He continued: "GM's manufacturing operations demand the highest standards of reliability, efficiency, and power quality - and that is what we build for. We are thrilled to launch IONATE's technology in the U.S. with such a titan of American industry." Electrical infrastructure remains one of the most important foundations of the modern economy, despite its core building blocks having changed little in more than a century. Industrial electrification, generation expansion and the rapid growth of AI-driven power demand are placing new strains on systems that were not designed for today's scale, complexity or speed of change. As a result, utilities, manufacturers and other large energy users are increasingly focused on how to modernize existing infrastructure, improve resilience and prepare networks for future demand. IONATE's HIT technology addresses this challenge by modernizing one of the grid's most critical infrastructure assets. Delivered in the form of a transformer, HIT upgrades the capabilities of the underlying electrical infrastructure itself. Positioned at the critical connection point between the grid and on-site energy use, HIT provides real-time visibility into power conditions while also detecting, analyzing and resolving power disturbances in real time, all while operating at greater than 99% efficiency. The system integrates into existing substations and facilities, reducing the need for downtime, costly infrastructure overhauls and supply chain disruptions. By improving how power is managed and utilized across existing infrastructure, the technology helps prepare networks for emerging sources of demand while supporting more efficient and resilient grid operations. In average deployment scenarios, grids using IONATE's technology can accommodate 33% more distributed energy resources, carry 25% more power without upgrading poles and wires, and reduce wasted power by 6%. "Maximizing efficiency and resiliency is crucial in GM's manufacturing system, and it's why we're implementing innovative technology to enhance our energy management and the overall grid," said Luis Cervantes, executive director of manufacturing excellence. Engineering teams from both IONATE and GM have worked closely together to bring the technology to GM's facility, with US-standard 3MVA IEEE units currently finalizing build and test ahead of the rollout. The companies will collaborate on the initial deployment in the Romulus plant, and potentially others across GM's manufacturing system. Beyond the individual deployment, each HIT also functions as a real-time control node coordinated through IONATE's Aurora software platform, allowing individual deployments to contribute to broader improvements in grid capacity and resilience as networks scale. This creates benefits not only for the site where the technology is installed, but also for the wider power system by helping large energy users operate as better grid citizens while preparing infrastructure for future demand growth. ABOUT IONATE IONATE is building the hardware-software backbone for smart grids. Its proprietary Hybrid Intelligent Transformer (HIT) replaces transformers with a smart equivalent, integrating high-fidelity data and precise control of voltages, harmonics and reactive power all-in-one. This makes the HIT a Swiss Army knife for stabilizing power flows across grids, power generation, industrial assets and data centers, while also lighting up real-time control nodes. Coordinated by IONATE's AI-enabled software, they turn the passive, old grid into the smart decentralized energy platform Ionate Limited need for the 21st century. Media Contact Emily Taylor

Tech in Asia
Feb 18th, 2025
Premium Contentwhy This Investor Is All In On Deeptechmichael Gryseels Set Up Singapore-Based Antares Ventures To Zero In On Global Startups Tackling Asia’S Growth Challenges. Simon Huang · 7M Ago

Antares isn’t just the brightest star in the Scorpius constellation. It is also the name of a Singapore-based venture capital firm focused on deeptech founded in 2024 by Michael Gryseels, a former managing partner of McKinsey and Company and ex-executive at CP Group. While serving as vice chairman of True Digital Group – CP Group’s digital business – from 2018 to 2023, he started backing startups with his own money, and the ones that excited him the most were those built on “scientific innovation.”Photo credit: True Digital GroupGryseels says the internet has been a “massive driver for business model innovation,” but it hasn’t “really solved the big problems in our life,” such as healthcare, climate, and food security. His time at CP Group, a Thai conglomerate whose revenue hit nearly US$100 billion in 2023, made one thing clear: Big companies want to innovate, but building deeptech in-house is tough. Meanwhile, many deeptech founders have “amazing technology” but struggle to scale

PR TIMES
Feb 6th, 2025
IONATE receives investment for smart transformers

Global Brain's JGC MIRAI Innovation Fund has invested in UK-based startup IONATE Limited, which develops and licenses the Hybrid Intelligent Transformer (HIT) for smart grids. HIT offers real-time control of voltage, frequency, and power factor, reducing power loss and operational costs. The investment will support IONATE's product development, AI evolution, and sales expansion to utilities, manufacturers, renewable energy firms, and data centers. The fund manages ¥5 billion over 10 years.