Deutsche Telekom Tech Stack

Global telecom operator modernizing legacy infrastructure with cloud and automation

Telecommunications Bonn, Germany 10,001+ employees Public Company

Deutsche Telekom operates as a carrier-scale infrastructure company managing connectivity across 34 countries, now actively migrating away from legacy SAP systems (ECC, ISU, UFT) toward S/4HANA, Kubernetes, and Ansible—a multi-year modernization of monolithic telecom architecture. Engineering dominance in the hiring mix (988 roles) paired with heavy CI/CD, OpenStack, and fiber-optic network projects signals infrastructure-first transformation rather than consumer product innovation.

Tech Stack 200 technologies

Core StackSQL Server Windows Server Tableau Power BI Oracle SAP Java Selenium InfiniBand FortiGate Cisco IOS XR Jedox SAP Analytics Cloud Qlik Sense MicroStrategy IBM Cognos Analytics SAP BW Percipio SharePoint Microsoft Office Outlook Excel PowerPoint TestNG Appium XCUITest Android Debug Bridge Android Studio VMware ESXi vCenter+170 more

AdoptingPlaywright SAP S/4HANA Docker Kubernetes Ansible AWX SAP BTP SAP Joule Scrum+26 more

ReplacingSAP S/4HANA UFT SAP ECC SAP ISU MPLS+5 more

What Deutsche Telekom Is Building

◆Challenges

Security compliance
Ensuring sla compliance
Ensuring data availability
High availability
Improving energy efficiency
Digital telco transformation
Process automation
Optimizing financial processes
Compliance with standards
Complex problems in daily operation of cloud backend

▲Active Projects

Rest api integration
Payment factory
Iot solution implementation
Ci/cd pipeline development
Openstack network services development
Key consolidation
Fiber optic network construction
Automation of manual processes
Sap s/4hana implementation
Hybrid cloud solution development

Hiring Activity

Steady1,900 roles · 650 in 30d

Department

Engineering

988

Ops

170

Sales

129

Data

Product

Security

Support

Seniority

Senior

759

Intern

425

Mid

372

Junior

103

Manager

Lead

Principal

Director

Notable leadership hires: SAP S/4HANA Lead Consultant, Head of Sales, Head of Design System, IT Project Director, Squad Lead Product Owner

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About Deutsche Telekom

Deutsche Telekom is a German public telecom operator providing connectivity, networks, cloud, and security services across Europe, Americas, Asia-Pacific, and other regions. The company operates in 34 countries with 10,001+ employees and maintains a portfolio spanning 5G, IoT, smart home, connected vehicles, and healthcare applications. Core operations center on network management, digital infrastructure, and enterprise customer solutions. Current technical roadmap emphasizes hybrid cloud adoption, legacy system consolidation (SAP migration), and process automation to reduce operational complexity and improve energy efficiency.

HeadquartersBonn, Germany

Company Size10,001+ employees

Hiring MarketsSlovakia, Romania, India, Germany, Hungary, United States, Austria, Mexico

Frequently Asked Questions

What is Deutsche Telekom's tech stack?

Core systems include SAP (ECC → S/4HANA migration), Oracle, SQL Server, Cisco IOS XR, VMware, and Windows Server. Analytics layer runs on Tableau, Power BI, SAP BW, and Qlik. Adopting Kubernetes, Docker, Ansible, Azure, and Playwright for modern deployment and testing.

What is Deutsche Telekom currently working on?

Active projects include SAP S/4HANA system implementation, fiber-optic network construction, hybrid cloud solutions, CI/CD pipeline development, OpenStack services, IoT implementations, API integrations, and process automation. Focus areas reflect digital transformation of core telecom operations.