Salary: £34,000 - £38,000

Full-time, hybrid with London office base - 3 days-per-week

IONATE is a deep tech scale-up building the hardware and software backbone for smart grids. Our mission is to transform power systems – from grids and microgrids to renewables and data centers – unlocking the massive potential in this under-innovated sector that touches every aspect of our modern lives.

We are now looking for a Senior Accounts Payable Specialist to join our Finance team. From delivering the day-to-day, to designing and implementing processes that drive our team forward, this role is for you if you thrive on the fast pace and variety that a growing scale-up has to offer.

What you will do:

Take ownership of the AP process from end-to-end; you'll be the go-to person for all AP-related queries - e.g. management of expenses, company credit cards, payments, purchase orders and reconciliation
Monitor and respond to internal and external queries via the shared Accounts inbox
Contribute to our financial reporting - producing key reports and documentation, including HMRC customs reporting and import tax obligations
Assess the effectiveness of our existing processes - spot the bottlenecks and optimise for simplicity
Assist our Financial Controller with broader finance-related tasks and projects

What you will need:

Expertise in AP / Purchase Ledger processes, with a particular focus on invoices, expenses, and payments (using Purchase Orders)
Experience using Microsoft Excel/Word, as well as Accounting/expense management platforms
Experience developing and implementing Accounts Payable processes, as well as identifying opportunities to improve existing ones
A keen eye for detail and accuracy
Solid organisational skills - you've juggled multiple competing priorities with ease and deliver results
Good communication skills - both written and verbal

It would be useful to have:

Experience in dealing with Import duties/import documentation
Familiarity with Xero and ExpenseIn

Your benefits:

Employee Option Plan: You get equity in IONATE, so as we succeed so do you.
Private Medical & Dental Insurance: From day one, we provide you with full, comprehensive private medical and dental cover through Bupa. You also have the option to add any dependents to your cover. Please ask us for more details.
Company pension: a flexible, and sustainable pension product to help you plan for your future.
Career Development: It’s important to us that you have the opportunity for ongoing professional development and career growth. You will receive an annual budget for professional development and work with your team to set and reach goals every year.
Flexible working schedules: You will have the flexibility for work-from-home arrangements. Talk to us at the application stage about this.
Cycle to Work Scheme: Low carbon travel is important for everyone, so we have in place a cycle scheme to help you purchase a bicycle.
Slow travel: We believe in a low carbon future, so if you wish to travel by a lower carbon method – but it takes much longer than flying - we will give you an extra 2 slow travel days per year.

About IONATE

Driven by first-principles engineering, IONATE is transforming power systems for the energy transition.

Our hardware is the Hybrid Intelligent Transformer (HIT): a new building block for the power grid and everything connecting. It integrates into the network like a transformer but solves key power quality issues through all-in-one power flow control. Beyond the passive voltage step, it provides data visibility, stepless and dynamic voltage control, harmonics removal and reactive power control with millisecond-precision. Its innovative hybrid design leveraging magnetic control makes it a robust, reliable, and affordable upgrade.

While deployed to remove constraints and prevent issues, HITs effectively light up real-time control nodes for the very first time. Once placed in strategic points of the network, IONATE’s AI platform can coordinate them to form a true smart system, coupling top-down grid orchestration with instantaneous bottom-up control in the physics. This full stack will achieve real-time system optimisation and turn the passive old grid into a flexible, decentralized platform that catalyses innovation.

3 reasons why you should apply:

You’ll work on something that matters. The most rewarding aspect of our job is seeing what we build in the lab get used in the real world. As our tech gets used in solar farms, batteries, and electricity grids, your work will help shape the future of the green energy transition .

The thinking you’ll do here is not your average exercises on repeat. Building a brand-new class of tech requires cutting-edge ideas. If you like to solve unconventional problems, to be given freedom to explore, to challenge – and be challenged by – field experts, you will fit just right in.

The rocket ship is taking off. Our innovation has been proven and demand is immense. IONATE is now rapidly scaling up and undertaking global projects. Joining early and working side-by-side with our leadership team means ample opportunity to grow your role together with our company.

IONATE has a friendly team that collaborates and supports one-another. If you don’t fit all the description above, but you are passionate about the work we are doing and could add value to our team, please get in touch. We believe in making positions fit the skills of people, not the other way around. We are also committed to providing equal opportunities, an inclusive work environment, and fairness for everyone. We value diversity in race, gender identity, sexuality, age, family or civil status, disability, religion, or ethnicity and encourage you to apply wherever you come from.

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Senior Accounts Payable Specialist

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