Thomas Altwein

Ownership of charging domain at TEF including all technical responsibilities from architectural decisions, interfaces (north and southbound) and requirements handling Project Planning and Estimations for new features Interworking with business and suppliers

· Technical consultancy for the online charging architecture . Service Engineering for prepaid and postpaid products · Technical consultancy with business stakeholders

· Technical consultancy and support for the end-to-end design · Application Design & Test · Technical negotiations with suppliers

Product Manager for the complete GSM(-R) NSS solution, including IN (SCP), HLR, R4 Call Server, MGW and OEMs. Direct customer interactions and engagements (Europe&Asia); Primed technical liaison with lead customers and 3rd party vendors/suppliers

Service Engineering of IN Services/Platforms for systems from 3 different vendors (ALU, RedKnee, NT)

Architect for feature customizations and major release driven IN based applications in GSM, GPRS, UMTS and GSM-R; Several consulting positions at telecom operators on behalf of Nortel, e.g. O2, gomobile; Direct customer interactions and project management responsibilities; Primed worldwide technical liaison with customers and 3rd party vendors/suppliers; Submitted several patent applications for wireless networks and applications; International work assigments in Europe & China

Development and Verification of GSM, GPRS, UMTS and GSM-R applications on an HP Open Call based SCP platform; Work assigment in Ottawa (Canada)

Worked several times during my study as part of industrial placement at Nortel DASA in the area of verification (Teststrategy, Testplan creation, Test execution) of ETSI ISDN features on a wireline switch

Optische Netze; digitaler Mobilfunk