Senior Bookkeeper

MX3D is expanding rapidly, and we are looking for a Senior Bookkeeper to join our growing team in Amsterdam. In this role, you will take ownership of the company’s financial administration , reporting , and internal control processes in a dynamic high-tech scale-up environment. You will play a key role in ensuring financial accuracy , supporting strategic decision-making , and preparing the organization for statutory audit readiness as MX3D continues to scale internationally. You will primarily work from our Amsterdam office and production facility, with the flexibility to work remotely one day per week after you are fully onboarded.

As Senior Bookkeeper, you will be responsible for the end-to-end financial administration and reporting cycle of the company. You will oversee monthly, quarterly, and annual closings in Exact Online , supervise day-to-day bookkeeping activities, and ensure robust financial controls and audit readiness. You will work closely with the CFO, Chief of Staff, external accountants, and operational teams to provide reliable financial insights, project costing data, and cash flow visibility for the business.

End-to-end monthly, quarterly, and annual closing in Exact Online Performing hands-on bookkeeping for (more complex) transactions, including intercompany entries, accruals, prepayments, and project-related journal entries in Exact Online Managing WIP reporting, including percentage-of-completion accounting, milestone recognition, and accruals Preparing structured internal financial reporting, including P&L, balance sheet, and cash flow reporting for the CFO and Chief of Staff Monitoring cash flow and preparing short-term liquidity forecasts Supervising and reviewing the work of the junior bookkeeper Overseeing finance operations, including AP/AR processes, payment approvals, and exception handling Designing, documenting, and implementing AO/IC procedures and internal controls in preparation for statutory audit requirements Managing audit preparation processes and acting as the primary contact for external accountants and auditors Providing clean and structured cost and revenue data for project costing and margin analysis Supporting continuous improvement and optimization of financial and administrative processes

HBO or WO degree in accounting, business, economics, or equivalent Minimum of 5 years of experience in bookkeeping, accounting, or controlling roles with demonstrable ownership of financial closing processes Proven experience with AO/ IC documentation and/or audit preparation is required Strong working knowledge of Exact Online Solid understanding of WIP accounting and project-based cost structures. Comfortable operating as the senior finance professional on-site within a lean finance setup Fluent in Dutch and professionally proficient in English Experience working alongside or managing a Big Four or mid-tier audit process is a strong differentiator

As MX3D has substantial French operations, French language skills are a plus Proven experience with international reporting and consolidation Proven experience in a scale-up, industrial, manufacturing, or project-based environment SPD qualification or RA track in progress is considered a strong plus

A unique opportunity within a fast-growing and innovative industry Market-competitive salary aligned with your experience 8% holiday allowance 27 vacation days plus 104 ADV hours Comprehensive PME pension scheme Annual company getaway and team events Informal and collaborative company culture, including our famous “Soup Fridays.” Access to over 600 online learning modules through oZone A vibrant international team with a strong “can-do” attitude Regular Friday afternoon drinks and team outings

MX3D is at the forefront of 3D metal printing technology, combining robotics, digital fabrication, and material science to redefine industrial manufacturing. Our pioneering work includes creating the world’s first 3D-printed steel bridge and delivering advanced manufacturing solutions for industries such as art & production, oil & gas, and energy.