Product Development and Product Management; Routing; Pre-sales; Internet Protocol Suite (TCP/IP); Wireless Technologies; Mobile Technology; Salesforce; Session Initiation Protocol (SIP); Signaling System 7 (SS7); Requirements Analysis; Software Project Management; Customer Relationship Management (CRM); Agile Methodologies; Cloud Computing; Internet of Things (IoT); Process Management; Team Management; Incoming / Outgoing Payments; Invoices / E-Invoices; Debtors; Document handling; Reports; AML/KYC, GDPR; Notifications.