Thorsten Siemes
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Thorsten Siemes Email & Phone Number

Senior IoT Offering Manager at T-Systems International GmbH
Location: Cologne Bonn Region, Germany 7 work roles
1 work email found @gmx.de LinkedIn matched
✓ Verified Jul 2026 3 data sources Profile completeness 86%

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Current company
T-Systems International GmbH
Role
Senior IoT Offering Manager
Location
Cologne Bonn Region, Germany
Company size
16097 employees

Who is Thorsten Siemes? Overview

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Quick answer

Thorsten Siemes is listed as Senior IoT Offering Manager at T-Systems International GmbH, a with 16097 employees, based in Cologne Bonn Region, Germany. AeroLeads shows a work email signal at gmx.de and a matched LinkedIn profile for Thorsten Siemes.

Thorsten Siemes previously worked as Senior Marketing Manager at Deutsche Telekom Ag and Principal Programme Manager at Vodafone Group Services Gmbh.

Company email context

Email format at T-Systems International GmbH

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{first}.{last}@gmx.de
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AeroLeads found 1 current-domain work email signal for Thorsten Siemes. Compare company email patterns before reaching out.

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Profile bio

About Thorsten Siemes

Specialties: International Programme Management, International Roll-outs, Product Management, Proposition Management, Telecommunication, Marketing, Online, Internet, eCommerce, eSales, eService, Business Plan, B2C, B2B, Process Analysis, Cost Saving, Mobile and Fixed Communication, Voice Services, Data Services, Mobile Internet, DSL, Femto Cell, Fixed-Mobile-Conversion, Consulting, Innovation, M2M, IoT, NB-IoT, LTE-M, 5G, VoLTE, Cross Border Business Models, M2M / IoT Business Models

Listed skills include Product Management, Telecommunications, Consulting, E Commerce, and 12 others.

Current workplace

Thorsten Siemes's current company

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T-Systems International GmbH
T-Systems International Gmbh
Senior IoT Offering Manager
frankfurt am main, hesse, germany
Website
t-systems.com
Employees
16097
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7 roles · 32 years

Thorsten Siemes work experience

A career timeline built from the work history available for this profile.

Senior Iot Offering Manager

Current
T-Systems International Gmbh

Bonn Area, Germany

Continuation of previous role and responsibilities at Deutsche Telekom AG.Responsible Product Manager for the introduction of NB-IoT and the launch of initial offers in Germany and the roll out of NB-IoT across the European subsidiaries supported by Deutsche Telekom’s M2M / IoT Connectivity Management Platform.Responsible Product Manager for the preparation of NB-IoT Roaming. Driving and aligning the development of a new charging principle and a new Roaming Wholesale billing concept to address the specifics of NB-IoT as a „Low Data Volume / Low ARPU“ business.Responsible Product Manager for the introduction of VoLTE (Voice of LTE) and 5G as standard products for M2M / IoT customers.

Sep 2017 - Present

Consultant

Eutelis Consult
1995 - 2001 ~6 yrs
Team & coworkers

Colleagues at T-Systems International GmbH

Other employees you can reach at t-systems.com. View company contacts for 16097 employees →

MM Marina Moskalenko Marina Moskalenko Colleague at T-Systems International GmbhRussia, Russian Federation View → BJ Brett Johnson Brett Johnson Colleague at T-Systems International GmbhWaterford, Michigan, United States View → FK Frank Knaesel Frank Knaesel Colleague at T-Systems International GmbhJaraguá Do Sul, Santa Catarina, Brazil View → TS Thomas Schostag Thomas Schostag Colleague at T-Systems International GmbhRangsdorf, Brandenburg, Germany View → UK Uli Kunesch Uli Kunesch Colleague at T-Systems International GmbhStuttgart Region, Germany View → DJ Dias, Jose Dias, Jose Colleague at T-Systems International GmbhUnited States View → MG Markus Goral Markus Goral Colleague at T-Systems International GmbhStuttgart Region, Germany View → RH Ralf Herrmann Ralf Herrmann Colleague at T-Systems International GmbhBonn, North Rhine-Westphalia, Germany View → TB Thomas Bangert Thomas Bangert Colleague at T-Systems International GmbhGermany View → SW Sebastian Wuerth Sebastian Wuerth Colleague at T-Systems International GmbhNew York, United States View →
FAQ

Frequently asked questions about Thorsten Siemes

Quick answers generated from the profile data available on this page.

What company does Thorsten Siemes work for?

Thorsten Siemes works for T-Systems International GmbH.

What is Thorsten Siemes's role at T-Systems International GmbH?

Thorsten Siemes is listed as Senior IoT Offering Manager at T-Systems International GmbH.

What is Thorsten Siemes's email address?

AeroLeads has found 1 work email signal at @gmx.de for Thorsten Siemes at T-Systems International GmbH.

Where is Thorsten Siemes based?

Thorsten Siemes is based in Cologne Bonn Region, Germany while working with T-Systems International GmbH.

What companies has Thorsten Siemes worked for?

Thorsten Siemes has worked for T-Systems International Gmbh, Deutsche Telekom Ag, Vodafone Group Services Gmbh, Vodafone Group Marketing, and Kpmg / Bearingpoint.

Who are Thorsten Siemes's colleagues at T-Systems International GmbH?

Thorsten Siemes's colleagues at T-Systems International GmbH include Marina Moskalenko, Brett Johnson, Frank Knaesel, Thomas Schostag, and Uli Kunesch.

How can I contact Thorsten Siemes?

You can use AeroLeads to view verified contact signals for Thorsten Siemes at T-Systems International GmbH, including work email, phone, and LinkedIn data when available.

What skills is Thorsten Siemes known for?

Thorsten Siemes is listed with skills including Product Management, Telecommunications, Consulting, E Commerce, Mobile Devices, B2B, Management, and Business Planning.

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