JOB DETAILS

Financial Administrator

CompanyOre Energy B.V.
LocationAmsterdam
Work ModeOn Site
PostedJuly 6, 2026
About The Company
Ore Energy is developing the next generation of long-duration energy storage to enable a fully renewable power system. Our iron-air battery technology stores electricity for up to 100 hours, making it possible to keep grids running through multi-day periods of low wind and sun. Unlike conventional batteries, our systems use abundant, non-toxic materials: iron, air, and water. This makes them safe, cost-effective, and scalable without relying on scarce minerals or fragile supply chains. When charging, the battery converts rust into metallic iron. When discharging, it reverses the reaction, consuming oxygen and producing rust again. This simple, proven chemistry has the potential to deliver energy at a fraction of the cost of other storage technologies. Founded at TU Delft in the Netherlands, Ore Energy is focused on real-world deployment. In 2025, we connected the world's first iron-air battery to the grid in Delft. This milestone demonstrated that multi-day storage can be integrated directly into modern energy systems. As countries expand renewable generation, the challenge of balancing supply and demand is becoming urgent. We believe long-duration storage is a critical part of the solution and that it must be safe, sustainable, and affordable at scale. Ore Energy’s mission is clear: to store renewable energy anywhere, for as long as needed, using materials that are available to everyone. By combining deep electrochemistry expertise with practical engineering, we are turning one of Earth’s most abundant resources into a cornerstone of the clean energy transition. To learn more about our technology, deployments, and career opportunities, visit: www.oreenergy.com
About the Role

The role

Ore Energy is on a mission to fundamentally expand the amount of energy society can reliably harness and use, helping move civilization toward a more abundant energy future. We are doing this by developing long-duration, utility-scale iron-air batteries that provide safe, low-cost, multi-day energy storage for electricity grids and data centers. Our technology is designed to enable renewable power to become a dependable source of energy at scale, supporting the transition to a cleaner, more resilient and more electrified world.

We are bringing our day-to-day financial operations in-house and are looking for a reliable, detail-oriented Financial Administrator (Accounts Payable Specialist) to join our team in Amsterdam. In this role, you will be the backbone of our daily accounting workflows, taking over the core Accounts Payable tasks currently managed by our external agency.

Your main focus will be keeping our AP pipeline running smoothly, ensuring invoices are processed accurately, and making sure our vendors are paid on time. This is a practical, hands-on role where you will work closely with our Finance Manager and internal teams to keep our books clean, organized, and up to date as our company grows.

Key responsibilities

  • Manage the AP Lifecycle: Take full ownership of the day-to-day Accounts Payable process, including coding invoices accurately to the correct cost accounts and cost centers, routing them for internal approval, and preparing weekly payment runs.

  • Vendor & Inbox Management: Act as the primary point of contact for vendor questions, manage the central finance email inbox

  • Proactive Problem Solving: Monitor outstanding balances, unallocated payments, and open items. Work directly with internal teams or suppliers to clear up any billing discrepancies quickly.

  • Month-End Support: Assist the Finance Manager with month-end closing tasks, including bank reconciliations, monthly accruals and cost analysis.

  • In-Housing Support: Help smoothly transition daily invoice processing and administrative workflows away from external parties and into our internal systems.

Your profile

  • Education: Associate’s or Bachelor’s degree in Accounting, Finance, or Business Administration is preferred (equivalent hands-on experience will absolutely be considered).

  • Experience: Minimum of 2 years of experience in a financial administration, bookkeeping, or accounting role, with a strong focus on Accounts Payable.

  • Software Skills: High proficiency with accounting software (ideally Exact Online) and automated invoice processing tools (like Zenvoices. Declaree or similar platforms).

  • Attention to Detail: High accuracy in data entry and booking, ensuring everything is recorded correctly at both the cost account and cost center level.

  • Communication & Mindset: Well-organized, reliable, and a clear communicator who enjoys keeping financial data organized and working collaboratively in a growing team environment.

Why us?

About us

The Challenge We Are Solving

Do you want to contribute to one of the most important challenges of our time: accelerating the energy transition? Are you excited by breakthrough energy storage technology with real-world impact? Would you like to be part of a mission-driven company where your work directly contributes to building the future of clean energy? 

Then we are looking for you.

Ore Energy develops long-duration energy storage solutions to support a reliable, zero-carbon electricity system.

Powering the Next Generation of Infrastructure

The electricity grid is undergoing its most significant transformation in a century. As renewables become the cheapest source of new power, the challenge is no longer producing clean energy, it is making it reliably available when and where it is needed, regardless of when the sun shines or the wind blows. Our iron-air batteries are uniquely designed to store renewable energy over multi-day periods, allowing clean electricity to become a dependable, around-the-clock backbone of the grid while reducing reliance on fossil-fuel peaker plants and building a more resilient, fully decarbonized power system.

This is a rare opportunity to join a company at the moment when technology readiness, customer traction, and market demand are converging. Ore Energy has already raised significant capital, built and tested its technology under real-world conditions, and is now moving toward large-scale commercial deployment. As we transition into this industrial implementation phase, we are building the team, systems, and capabilities required to scale our solution and help define how long-duration storage powers both the future grid and the next generation of industry and data infrastructure.

Our Culture & Beliefs

We believe impactful technology is built by talented people who are motivated by complex challenges, scientific rigour and strong execution. That is why we are looking for dedicated professionals who want to help shape a cleaner and more resilient energy future.

At Ore Energy, we are committed to fostering an inclusive and diverse workplace where every individual has the opportunity to thrive. We believe that diversity of thought, background, and experience drives innovation and success. Are you unsure if you meet all the requirements? Please do apply, we’d love to hear from you! Your unique perspective and skills could be exactly what we’re looking for.

Key Skills
Accounts PayableBookkeepingFinancial AdministrationInvoice ProcessingBank ReconciliationCost AnalysisVendor ManagementExact OnlineZenvoicesDeclareeData EntryMonth-end Closing
Categories
Finance & AccountingEnergyEnvironmental & SustainabilityAdministrative
Job Information
📋Core Responsibilities
Manage the full Accounts Payable lifecycle, including invoice coding, approvals, and weekly payment runs. Act as the primary contact for vendors and support the Finance Manager with month-end closing and bank reconciliations.
📋Job Type
permanent employee
📊Experience Level
2-5
💼Company Size
41
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
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