Senior Financial Systems Developer

Senior Financial Systems Developer - OneStream Location: Ijsselstein, utrecht, netherlands Profile : Senior Financial Systems Developer - OneStream Development Team (Royal Terberg Group) Location : IJsselstein, Utrecht (international scope) Reports to : Product Owner OneStream / Manager Group Reporting & Consolidation About Terberg Terberg is a leading international family business with a rich history and strong growth ambitions. We operate in sectors such as specialized vehicle manufacturing, heavy equipment, and related industrial markets. Our strength lies in innovation, entrepreneurship, and delivering sustainable growth-both organically and through targeted acquisitions. The Challenge To realize our ambitions for continuous improvement and reliability in group consolidation and reporting, we are establishing a dedicated OneStream Development Team. This multidisciplinary team supports all divisions and the Group by enhancing our Corporate Performance Management platform (OneStream). As Senior Financial Systems Developer, you will be a driving force behind this team. Your Role - Lead the technical design, development, and maintenance of OneStream solutions, including business rules, calculations, dashboards, and integrations. - Translate business requirements from Product Owners and key users into robust, scalable technical solutions within OneStream. - Manage and mentor a Financial Systems Developer, fostering skill development and knowledge sharing. - Ensure high-quality code and configuration through peer review, testing, and documentation. - Collaborate closely with Product Owners, key users, and external support to deliver enhancements in line with Agile principles (Kanban/quarterly cycles). - Maintain a transparent backlog of requests and improvements, supporting continuous delivery and rapid response to business needs. - Proactively identify opportunities for system optimization, automation, and improved user experi...