Master Data Specialist

• Manage day-to-day client and vendor master data activities.
• Process requests for new records and data modifications accurately and within agreed timelines.
• Verify data completeness and compliance with local and global standards.
• Investigate data inconsistencies, identify root causes, and support corrective actions.
• Cooperate with agencies and internal stakeholders to maintain high data quality.
• Build effective working relationships with SSC teams, media houses, advertising agencies, and internal customers.
• Collaborate closely with other SSC departments.
• Support continuous improvement initiatives and process optimisation.
• Maintain process documentation and update procedures following process changes.
• Prepare reports requested by agencies or team leaders, including KPI and activity reports.
• Support data maintenance across relevant financial systems in line with established procedures.
• Assist with internal and external audit requests by collecting documentation and providing required data.
• Deliver assigned tasks efficiently, accurately, and in accordance with agreed KPIs and deadlines.
• Support additional projects and tasks assigned by the Team Leader or Manager.

• Previous experience in master data, finance operations, shared services, administration, or a similar data-focused role.
• Good understanding of data management principles and the importance of data accuracy.
• Strong attention to detail and a structured, quality-focused approach.
• Ability to analyse data, identify inconsistencies, and resolve issues.
• Good organisational and time-management skills, with the ability to meet deadlines.
• Strong communication and stakeholder-management skills.
• Ability to work independently while contributing effectively to a team.
• Confidence working with Microsoft Office, particularly Excel.
• Experience with ERP or financial systems would be an advantage.
• Good command of English and Polish, both written and spoken.
• Willingness to learn, take ownership, and contribute to process improvements.