Job IDPosted since21-Dec-2025OrganizationGlobal Business ServicesField of workFinanceCompanySiemens S. A.Experience levelExperienced ProfessionalJob typeFull-timeWork modeHybrid (Remote/Office)Employment typeFixed TermLocation(s)Amadora - Lisboa - Portugal Siemens Global Business Services (GBS) enables Siemens units worldwide and external customers to accelerate their business transformation into a sustainable and digital future.Our portfolio comprises services driven by expertise and the latest technology – with a strong focus on innovation and digitalization in areas like Finances, Business Administration, Human Resources, Procurement, Sales and After-Sales.In our GBS Western Europe and Africa Hub we are already more than 1500 connected people, from over 50 different nationalities spread across 14 countries. If you value diversity and innovation, you'll feel right at home hereDiscover our purpose, culture, and what makes GBS unique Check out hereOur Mar Com, Sales and Delivery Services (MSD) business line offers expertise in Marketing, Communication, Sales, and Delivery. We deliver services ranging from sales enablement, order-to-delivery processes up to after-sales support. With our end-to-end services we empower sellers, streamline operations, and enable businesses to deliver outstanding customer experiences across all touchpoints.Are you ready to be part of the change? Come join usYour mission will be...Establishing and maintaining contact with customers concerning pre and past due invoices,