1. Home
  2. Companies
  3. Deutsche Telekom AG
DT

Deutsche Telekom AG

About

At Deutsche Telekom, we believe in the power of connection to transform how people live and work. As one of the world's leading integrated telecommunications companies, our team of over 200,000 employees across 50+ countries is united by a shared purpose: connecting the world while championing sustainability and digital responsibility. Our engineers and innovators work at the forefront of 5G, cloud computing, and AI - building networks that millions rely on daily. We've been climate-neutral in our own operations since 2025, proving that ecological responsibility and economic success go hand in hand.

We thrive on collaboration and diverse perspectives. Whether it's our T-Mobile teams in the U.S. pushing boundaries in mobile experiences, or T-Systems experts architecting sovereign cloud solutions for European enterprises, we empower our people to think big and deliver impactful solutions. Our culture balances German engineering precision with startup agility - giving you the stability of an industry leader alongside opportunities to shape the future of connectivity.

Open roles at Deutsche Telekom AG

Explore 1 open positions at Deutsche Telekom AG and find your next opportunity.

DT

Senior Cyber Security Defender Engineer with German

Deutsche Telekom AG

Košice, Košice, Slovakia (On-site)

From €22.2k Yearly2w ago

Similar companies

DB

Deutsche Bank

Deutsche Bank is a leading German global banking and financial services institution. Founded in 1870 to support German companies abroad, it is now the leading bank in Germany with a strong position in Europe, represented in 56 countries around the world. The bank operates through four client-focused divisions - Corporate Bank, Private Bank, Investment Bank and Asset Management - and maintains a large global workforce. Headquartered in Frankfurt, Deutsche Bank serves corporations, institutions and private individuals with a comprehensive range of financial services and sophisticated risk management solutions. The bank's scale is reflected by €30.1bn in revenues and a substantial asset base, including around €1.0tn in assets under management in Asset Management and €633bn in assets under management in Private Banking. It employs around 89,753 people and continues to invest in technology, research and client service to support clients across global markets. Deutsche Bank positions itself as the Global Hausbank for its clients, offering integrated financial solutions across Corporate Bank, Private Bank, Investment Bank and Asset Management. It maintains a network that spans 56 countries, remains committed to responsible growth and sustainability, and emphasizes governance and risk controls as a core part of its business. The firm has a long history spanning more than 150 years, reflects its role in Europe and beyond, and continues to evolve through digital transformation, security, and innovation to serve clients worldwide.

2 jobs
SA

Smartbroker AG

SMARTBROKER+ is a German online broker offering commission-free trading for orders over €500, with access to over 40,000 stocks, 2,500+ ETFs, 18,000 funds without sales charge, 4.6+ million derivatives, and 41 cryptocurrencies. The platform provides more than 10,800 savings plans across stocks, ETFs, and funds, making it attractive for European investors seeking cost-efficient brokerage services with a broad range of trading options and user-friendly platform. Recognized as the cost winner by Stiftung Warentest Finanzen (December 2025) across all tested depot sizes, SMARTBROKER+ combines competitive fee structures with comprehensive product offerings. The company, based in Berlin and part of the Smartbroker Group, operates as a next-generation broker regulated by BaFin under MiFID II, offering access to 30 national and international trading venues. With over 25 years of market experience, the organization has established itself as a driving force in the digital financial media and brokerage space for private investors.

1 job
TG

TELEFÓNICA GLOBAL TECHNOLOGY, S.A.

In 1924, when telephony was nearly half a century old, a vision emerged to unify Spain's fragmented telephone infrastructure. On a Holy Saturday in Madrid, the seeds of Compañía Telefónica Nacional de España were sown, marking the beginning of what would become one of the world's telecommunications giants. The founders recognized that connecting people through reliable communication was not just a business opportunity - it was essential for national progress and social cohesion. From those early days of manually switching calls to today's 5G networks and digital transformation services, Telefónica has continuously evolved alongside technological advancement. The company expanded beyond Spanish borders, growing into a global operator serving millions across Europe and Latin America. Today, Telefónica stands as a digital leader, providing not just connectivity but integrated technology solutions in cybersecurity, cloud, IoT, and AI, proving that a century-old company can continuously reinvent itself to meet the changing needs of a connected world.

NA

Nordzucker AG

Nordzucker AG operates 18 production facilities across Germany, Denmark, Finland, Lithuania, and Australia, producing sugar from both beet and cane alongside bioethanol, animal feed, fertilizers, molasses, and alternative plant-based proteins. The company employs approximately 3,500 people and traces its roots to 1838, when the first beet sugar factory was established in Klein Wanzleben. Since then, it has expanded through strategic acquisitions, including Nordic Sugar in 2009 and a majority stake in Australia's Mackay Sugar in 2019. The industrial control environment spans multiple OT platforms: Siemens S7, Siemens LOGO!, and PCS7 systems, alongside Foxboro, ABB, Honeywell, and Valmet infrastructure. Production facilities processing agricultural feedstock at scale create a significant attack surface - operational technology securing fermentation processes, steam generation, crystallization equipment, and continuous material handling systems. The company references IEC 62443, the industrial automation security standard, signaling awareness of the threat model facing critical infrastructure in food production. Nordzucker emphasizes supply chain and value chain transparency, environmental management, and quality standards across its operations. The distributed nature of production - spanning two continents with facilities in five countries - means securing both industrial control systems and the IT networks connecting growers, production sites, and distribution channels. With core values including responsibility and dedication, the company positions itself as a modern international operation maintaining close ties with agricultural partners while managing the complex operational security demands of food manufacturing infrastructure.

J–

Jobportal – Karriere – Deutsche Glasfaser

Deutsche Glasfaser operates Germany's largest rural fiber-optic infrastructure, managing approximately 2.5 million FTTH connections across more than 1,750 municipalities. Backed by over €10 billion in private investment from EQT and OMERS, the company plans, builds, and operates open-access fiber networks serving residential, business, and public-sector customers - around 1.5 million contracted endpoints at scale. The threat surface spans operational technology for network management, customer data across a distributed footprint, and the attack vectors inherent in managing critical telecommunications infrastructure. The security stack centers on Microsoft Defender for Endpoint and Sentinel for detection and response, with Tenable handling vulnerability management and a SIEM correlating events across the environment. Engineering workflows run through Atlassian tooling - JIRA, Confluence, and ScriptRunner - creating integration points that require hardening. The operational model demands securing both the physical network construction process and the digital service layer, with particular attention to supply chain integrity in hardware deployment and access control across a geographically dispersed infrastructure. Under CEO Andreas Pfisterer, the company positions itself as a technology leader in cost-efficient FTTH expansion, which translates to velocity pressures on security architecture. Defending rural broadband infrastructure means balancing rapid rollout demands against the need for consistent security controls across municipalities with varying maturity levels. The open-access model introduces shared responsibility boundaries with service providers using the network, requiring clear threat models for multi-tenant environments and robust monitoring at handoff points.

TT

Telefonica Tech

We believe in building a better world through secure digital enablement, focusing on empowering organisations through every stage of their digital journey. Telefónica Tech is a specialist provider of integrated technology solutions, delivering an end-to-end portfolio that includes Cyber Security, Cloud, Data & AI, Business Applications, and Digital Workplace services. We're part of the Telefónica Group, serving millions of customers across 175 countries with a team of over 6,000 skilled professionals from more than 60 nationalities. Our approach combines deep technical expertise with genuine partnership. We work alongside organisations in sectors like public services, healthcare, police, financial services, manufacturing, and retail to understand their unique challenges and deliver tailored solutions. Whether it's helping a healthcare provider implement connected, secure systems, supporting a utility company with critical infrastructure protection, or enabling a retailer to create personalised customer experiences through data, we focus on practical outcomes that make a real difference.