T Hub - IoT Service Operations Engineer (Mobile Core)
Offer summary

(Summary generated by AI based on the full job description)

The project focuses on international M2M/IoT connectivity services within Deutsche Telekom Group. Key requirements include knowledge of mobile networks 2G-5G, Mobile Core (APN, DNS, Diameter, Radius, PGW, EPC), IP networking (IPv4/IPv6, routing), and tools like Wireshark. Responsibilities cover ensuring operational excellence, managing incidents, changes, and problems, coordinating with international teams and vendors, and monitoring service quality. The project offers private medical care, training, and hybrid work model.

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T Hub - IoT Service Operations Engineer (Mobile Core)

Company: T-Mobile

from: 21 August 2026
to: 20 September 2026
salary not specifiedcontract of employment (full-time)
Offer parameters
level:mid • senior
working mode:hybrid
Warszawa, Mokotów
Warszawa, MokotówMarynarska 12View on map

Requirements

Operating system

Windows

Our requirements

  • 2+ years of experience in telecommunications, network operations, mobile data services or IT infrastructure environments.
  • Understanding of mobile network architecture and services (2G/3G/4G/5G).
  • Knowledge of Mobile Core technologies, especially: APN, DNS, Diameter, Radius, PGW, EPC/ePC.
  • Good understanding of IP networking concepts: IPv4/IPv6, routing, DHCP, subnetting, troubleshooting.
  • Experience with network diagnostics and packet analysis tools such as Wireshark.
  • Understanding of ISP services, CDN, DNS and Internet connectivity concepts.
  • Familiarity with Incident, Change and Problem Management processes.
  • Experience working with multiple stakeholders, vendors and international teams.
  • Good English communication skills.
  • German language skills will be considered an advantage.

Optional

  • Exposure to IoT/M2M services.
  • Knowledge of eBGP and routing principles.
  • Experience with ELK/Kibana environments.
  • Understanding of service monitoring platforms and service quality reporting.
  • ITIL certification or practical ITIL experience.

Your responsibilities

  • Ensure operational excellence and service quality of Deutsche Telekom's international M2M/IoT connectivity services.
  • Cooperate closely with IoT Operations teams across Germany and international markets.
  • Coordinate and support Incident, Problem and Change Management processes.
  • Act as a Change Advisory Board member and coordinate service-impacting changes.
  • Collaborate with multiple vendors, drive escalations, support change execution and assess vendor performance.
  • Define and monitor service quality KPIs, including availability, stability, response times and customer experience indicators.
  • Document high-level end-to-end service architecture and service chains.
  • Maintain operational documentation, knowledge base articles, expert guidelines and on-call procedures.
  • Serve as a technical point of contact for SOC teams, internal stakeholders, vendors and customers.
  • Support SLA, OLA and ITIL process improvements and optimization initiatives.
  • Participate in monitoring strategy development and optimization activities.
  • Support the launch of new services and projects, ensuring operational readiness before commercial deployment.
T Hub is a dynamic, forward-thinking place where technology truly matters! We are the heart of innovation within Deutsche Telekom Group, bringing together top talents to design, build and operate cutting-edge solutions used by millions of customers worldwide.
Have you ever wondered whether you'd rather work in a big tech company, a startup, a software house, in telecom or IT, remotely or from the office? At T Hub, the answer is simple – YES!
Find your superposition → Apply → Meet us → Become part of T Hub!
Working at T Hub means becoming part of an international team responsible for services connecting millions of IoT devices worldwide. You will work at the intersection of telecommunications, networking and modern connectivity solutions while helping shape the future of IoT within Deutsche Telekom Group.
You'll have the opportunity to collaborate with experts across Europe, contribute to mission-critical services and gain hands-on exposure to Mobile Core, global connectivity and next-generation telecom technologies.
Company

What we offer

Stable employment based on employment contract.
Private medical care and life insurance.
Access to learning platforms such as Percipio, Coursera and Rodos.
Cafeteria benefit platform.
Additional day off for your birthday.
Hybrid work model (2-3 days in the office).
Free parking space.
International projects within Deutsche Telekom Group.

Benefits

  • sharing the costs of sports activities
  • private medical care
  • sharing the costs of foreign language classes
  • sharing the costs of professional training & courses
  • life insurance
  • flexible working time
  • corporate products and services at discounted prices
  • integration events
  • mobile phone available for private use
  • no dress code
  • parking space for employees
  • extra social benefits
  • sharing the costs of tickets to the movies, theater
  • holiday funds
  • birthday celebration
  • sharing the costs of a streaming platform subscription
  • employee referral program
  • charity initiatives
  • extra leave
  • Benefit Platform

Recruitment stages

  • 1.
    Let’s meet to better understand each other's expectations.
  • 2.
    Hiring Manager will receive your application after meeting.
  • 3.
    Technical meetings with the Hiring Manager and/or team.
  • 4.
    Time to decide!

T-Mobile

Working at T-Mobile’s T Hub will offer you an unique and highly rewarding experience on IT market. As a leader in the telecommunications industry, T-Mobile not only provides a platform to hone your technical skills but also empowers you to be a catalyst for innovation. You'll have the opportunity to work at the forefront of cutting-edge technologies, from 5G to IoT and AI, shaping the future of connectivity. Our commitment to fostering a diverse and inclusive workplace means you'll collaborate with a wide range of talented professionals, learning and growing together. T-Mobile encourages a culture of continuous learning and development, offering mentorship and support to help you thrive in your career.

This is how we work

T Hub - IoT Service Operations Engineer (Mobile Core)
I apply to:
T-Mobile
Warszawa, Mokotów
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