Senior Business Administrator

Your Day-to-Day:

· Provide day-to-day administrative, accounting and office management support to the team

· Manage incoming correspondence, including scanning, electronic filing and document organisation

· Maintain and update corporate and financial documentation in the appropriate internal folders

· Process invoices through internal systems, including validation workflows and payment preparation

· Verify payment information, including bank details, and prepare payment batches through online banking platforms

· Coordinate payment approvals and ensure appropriate follow-up when required

· Investigate and resolve account discrepancies by reviewing supporting documentation and liaising with relevant banking contacts

· Maintain Excel-based cash reconciliation files by matching incoming and outgoing transactions with online banking statements

· Support weekly bank reconciliation activities and assist in identifying and resolving discrepancies

· Provide general administrative assistance to team members and support ad-hoc requests according to business needs

· Contribute to the smooth day-to-day running of the office

· Coordinate with external service providers when required

· Handle confidential and sensitive information with the appropriate level of discretion

· Take on additional administrative tasks depending on workload and business priorities

Your Profile:

· Degree in Accounting, Administration, Finance or a related field (BTS or equivalent)

· 3–5 years of relevant professional experience in administration, accounting, banking, fiduciary services, or a similar environment

· Previous experience with travel & expenses management and reporting would be an advantage

· Strong numerical aptitude with excellent analytical and problem-solving skills

· Good knowledge of data entry and cash reconciliation processes

· Strong attention to detail and a high level of accuracy

· Excellent organisational skills and ability to manage multiple priorities simultaneously

· Ability to work efficiently under pressure and meet regular deadlines

· Autonomous and comfortable working with limited supervision

· Proactive, reliable and solution-oriented approach

· Strong written and verbal communication skills

· Collaborative mindset and ability to work effectively as part of a team

· Comfortable handling confidential information

· Proficient in Microsoft Excel and familiar with online banking and administrative/accounting systems

· Fluent in English

· Based in or able to work in Luxembourg