About LeydenJar LeydenJar Technologies aims to become world’s innovation leader in advanced battery anodes to energize batteries for progress. High energy density of battery cells is an urgent and unmet need for a wide range of industries from consumer electronics to electric vehicles. By addressing the bottleneck of the battery anode, LeydenJar can improve this by 70% in an industry that can only improve 3% per year. Our pure silicon anode is regarded as the holy grail to achieve in the battery industry. Progress is not only about enabling new products, it also means a more sustainable supply chain, resilience and access to battery technology in geopolitical context and enabling electrification.Our business model is to provide pure silicon anode rolls that fit directly in the battery plants of cell partners, allowing our clients to make step change in their product performance, or to allow new product categories such as e-flight. Our immediate focus in on the consumer electronics industry, with first automotive application development starting in shortly. To produce pure silicon anodes, we have crossed over from semicon thin film technology (plasma deposition) to anode production. This has given us a unique product quality that can last long without the problems associated with silicon as a battery material. To produce this material at scale we have pioneered roll to roll production tools that we will deploy in PlantOne in Eindhoven, expected to open in 2026. We will produce rolls and validate the production tools, allowing us to ramp up to large commercial production in PlantTwo (location to be determined). Ramping up to become a leading player in the battery market is an enormous opportunity, but also daunting development that requires a team of energy dense professional leadersTo support our rapid growth, we’re looking for a Finance Operations Coordinator to join our team on a Part-time basis (16-24 hours a week). This role is essential to keeping our financial operations running smoothly and supporting the backbone of our growing organization. If you're detail-oriented, organized, and eager to make a real impact this might be the role for you.You will be responsible for: 1. Administrative Support:<ul><li>Assist with day-to-day administrative tasks, including answering phones, managing correspondence, and scheduling meetings. </li><li>Coordinate travel arrangements, prepare expense reports, and maintain filing systems for financial documents and records. </li><li>Act as a point of contact for internal and external stakeholders, providing excellent customer service and resolving inquiries promptly. </li></ul>2. Data Entry and Recordkeeping: <ul><li> Enter financial data into accounting software and spreadsheets accurately and efficiently.</li><li> Maintain up-to-date and organized financial records, including invoices, receipts, and purchase orders. </li><li>Assist with the preparation of financial reports and presentations as needed. </li></ul>3. Billing and Accounts Receivable: <ul><li> Assist with billing processes, including generating invoices, tracking payments, and reconciling accounts receivable. </li><li> Follow up on outstanding invoices and communicate with clients to resolve payment discrepancies or issues. </li><li> Prepare and distribute billing statements and reminders as necessary. </li></ul>4. Accounts Payable Support: <ul><li> Assist with accounts payable processes, including coding invoices, obtaining approvals, and processing payments. </li><li>Monitor vendor accounts and reconcile statements to ensure accuracy and timely payment. </li><li>Assist with vendor inquiries and resolve billing discrepancies or disputes as needed.</li></ul> 5. General Finance Support: <ul><li>Provide general support to the finance team, including assisting with budget preparation, financial analysis, and special projects.</li><li>Collaborate with team members to streamline processes and improve efficiency within the finance department. </li><li>Stay informed about relevant financial policies, procedures, and regulations to ensure compliance</li></ul>About you:<ul><li>HBO education in finance, accounting, Business administration, or a related field </li><li> 1 year experience in Finance domain and Administrative role. </li><li>Strong attention to detail and accuracy, with excellent organizational and time management skills. </li><li> Ability to maintain confidentiality and handle sensitive financial information with discretion. </li><li> Adaptability and willingness to learn new task and technologies as needed.</li><li>Strong communication skills both written and spoken English and Dutch. Competencies: </li><li> Procurement/Accounts Payable skills and knowledge </li><li>Execution – Takes responsibility for accurate data entry, reconciliations, and task completion </li><li>Concern for excellence – Ensures financial records and admin tasks are error-free </li><li>Flexibility – Handles changing systems, tools, and deadlines (common in scale-ups) </li><li> Teamwork – Works with finance team and responds to queries from other departments</li></ul>Why LeydenJar?<ul><li>Unleash your potential: Dive into a realm where personal growth meets ownership, with the backing to achieve your career aspirations.</li><li>Pension and Insurance Contributions: LeydenJar will pay a total of 10% (on top and based on your monthly gross salary) for pension and life insurance.</li><li>Holiday: Enjoy 25 days of vacation per year (based on a 40-hour working week) to relax and recharge.</li><li>Wellness Day: Take advantage of 1 wellness day per year to focus on your health and well-being.</li><li>Phone allowance: Receive 15,00 EUR monthly to cover your telephone costs.</li><li>Travel Expense Coverage: We will pay your home-work travel expenses (0,23 EUR per kilometer) or provide an NS Business Card for public transport.</li><li>Online Training Platform: Access a platform for online training to enhance your skills and knowledge.</li><li>Study Leave: Enjoy 5 days of study leave per year to pursue continuous learning and development.</li><li>Diverse and Inclusive Team: Join an international team with 25+ different nationalities, fostering a rich and diverse work environment.</li><li>Internal Events: Participate in several FUN events each year, such as end-of-year celebrations, team-building activities, monthly team lunches, and regular drinks, all designed to keep you productive, healthy, and engaged.</li></ul> Are you ready to take on the challenge as a Finance Operations Coordinator?We are looking forward to your application!If you'd like to learn more about LeydenJar amazing team, see below: At LeydenJar we value diversity, and we provide equal opportunities to all applicants without regard to race, color, ethnicity, religion, gender, pregnancy/childbirth, age, national origin, sexual orientation, disability, etc. If there are two or more applicants of equal suitability for a certain position, LeydenJar can under circumstances decide to select applicants based on positive discrimination in full compliance with all relevant and applicable law.

LeydenJar Technologies boosts the energy density of li-ion batteries by replacing the traditional graphite anode with a nanoporous, pure silicon anode. This yields cheaper (-20% costs), greener (-85% CO2 footprint) and higher energy density batteries (+70% as compared to state-of-the-art, 1350Wh/L).


Finance Operations Coordinator ( Part-time)

About LeydenJar LeydenJar Technologies aims to become world’s innovation leader in advanced battery anodes to energize batteries for progress. High energy density of battery cells is an urgent and unmet need for a wide range of industries from consumer electronics to electric vehicles. By addressing the bottleneck of the battery anode, LeydenJar can improve this by 70% in an industry that can only improve 3% per year. Our pure silicon anode is regarded as the holy grail to achieve in the battery industry. Progress is not only about enabling new products, it also means a more sustainable supply chain, resilience and access to battery technology in geopolitical context and enabling electrification.Our business model is to provide pure silicon anode rolls that fit directly in the battery plants of cell partners, allowing our clients to make step change in their product performance, or to allow new product categories such as e-flight. Our immediate focus in on the consumer electronics industry, with first automotive application development starting in shortly. To produce pure silicon anodes, we have crossed over from semicon thin film technology (plasma deposition) to anode production. This has given us a unique product quality that can last long without the problems associated with silicon as a battery material. To produce this material at scale we have pioneered roll to roll production tools that we will deploy in PlantOne in Eindhoven, expected to open in 2026. We will produce rolls and validate the production tools, allowing us to ramp up to large commercial production in PlantTwo (location to be determined). Ramping up to become a leading player in the battery market is an enormous opportunity, but also daunting development that requires a team of energy dense professional leadersTo support our rapid growth, we’re looking for a Finance Operations Coordinator to join our team on a Part-time basis (16-24 hours a week). This role is essential to keeping our financial operations running smoothly and supporting the backbone of our growing organization. If you're detail-oriented, organized, and eager to make a real impact this might be the role for you.You will be responsible for: 1. Administrative Support:<ul><li>Assist with day-to-day administrative tasks, including answering phones, managing correspondence, and scheduling meetings. </li><li>Coordinate travel arrangements, prepare expense reports, and maintain filing systems for financial documents and records. </li><li>Act as a point of contact for internal and external stakeholders, providing excellent customer service and resolving inquiries promptly. </li></ul>2. Data Entry and Recordkeeping: <ul><li> Enter financial data into accounting software and spreadsheets accurately and efficiently.</li><li> Maintain up-to-date and organized financial records, including invoices, receipts, and purchase orders. </li><li>Assist with the preparation of financial reports and presentations as needed. </li></ul>3. Billing and Accounts Receivable: <ul><li> Assist with billing processes, including generating invoices, tracking payments, and reconciling accounts receivable. </li><li> Follow up on outstanding invoices and communicate with clients to resolve payment discrepancies or issues. </li><li> Prepare and distribute billing statements and reminders as necessary. </li></ul>4. Accounts Payable Support: <ul><li> Assist with accounts payable processes, including coding invoices, obtaining approvals, and processing payments. </li><li>Monitor vendor accounts and reconcile statements to ensure accuracy and timely payment. </li><li>Assist with vendor inquiries and resolve billing discrepancies or disputes as needed.</li></ul> 5. General Finance Support: <ul><li>Provide general support to the finance team, including assisting with budget preparation, financial analysis, and special projects.</li><li>Collaborate with team members to streamline processes and improve efficiency within the finance department. </li><li>Stay informed about relevant financial policies, procedures, and regulations to ensure compliance</li></ul>About you:<ul><li>HBO education in finance, accounting, Business administration, or a related field </li><li> 1 year experience in Finance domain and Administrative role. </li><li>Strong attention to detail and accuracy, with excellent organizational and time management skills. </li><li> Ability to maintain confidentiality and handle sensitive financial information with discretion. </li><li> Adaptability and willingness to learn new task and technologies as needed.</li><li>Strong communication skills both written and spoken English and Dutch. Competencies: </li><li> Procurement/Accounts Payable skills and knowledge </li><li>Execution – Takes responsibility for accurate data entry, reconciliations, and task completion </li><li>Concern for excellence – Ensures financial records and admin tasks are error-free </li><li>Flexibility – Handles changing systems, tools, and deadlines (common in scale-ups) </li><li> Teamwork – Works with finance team and responds to queries from other departments</li></ul>Why LeydenJar?<ul><li>Unleash your potential: Dive into a realm where personal growth meets ownership, with the backing to achieve your career aspirations.</li><li>Pension and Insurance Contributions: LeydenJar will pay a total of 10% (on top and based on your monthly gross salary) for pension and life insurance.</li><li>Holiday: Enjoy 25 days of vacation per year (based on a 40-hour working week) to relax and recharge.</li><li>Wellness Day: Take advantage of 1 wellness day per year to focus on your health and well-being.</li><li>Phone allowance: Receive 15,00 EUR monthly to cover your telephone costs.</li><li>Travel Expense Coverage: We will pay your home-work travel expenses (0,23 EUR per kilometer) or provide an NS Business Card for public transport.</li><li>Online Training Platform: Access a platform for online training to enhance your skills and knowledge.</li><li>Study Leave: Enjoy 5 days of study leave per year to pursue continuous learning and development.</li><li>Diverse and Inclusive Team: Join an international team with 25+ different nationalities, fostering a rich and diverse work environment.</li><li>Internal Events: Participate in several FUN events each year, such as end-of-year celebrations, team-building activities, monthly team lunches, and regular drinks, all designed to keep you productive, healthy, and engaged.</li></ul> Are you ready to take on the challenge as a&nbsp;Finance Operations Coordinator?We are looking forward to your application!If you'd like to learn more about LeydenJar amazing team, see below: At LeydenJar we value diversity, and we provide equal opportunities to all applicants without regard to race, color, ethnicity, religion, gender, pregnancy/childbirth, age, national origin, sexual orientation, disability, etc. If there are two or more applicants of equal suitability for a certain position, LeydenJar can under circumstances decide to select applicants based on positive discrimination in full compliance with all relevant and applicable law.

Finance Operations Coordinator ( Part-time)

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About the Company

LeydenJar Technologies

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