IoT Service Operations Engineer (Mobile Core)

Location: Warsaw, Poland; hybrid work model with 2–3 days in the office

Company

International telecommunications services within Deutsche Telekom Group, connecting millions of IoT devices through global M2M/IoT connectivity services.

What you will do

• Ensure operational excellence and service quality for international M2M/IoT connectivity services.
• Coordinate Incident, Problem, and Change Management processes and participate in the Change Advisory Board.
• Collaborate with IoT operations teams, vendors, SOC teams, customers, and international stakeholders.
• Define and monitor service-quality KPIs covering availability, stability, response times, and customer experience.
• Document service architecture, service chains, operational procedures, knowledge-base articles, and on-call guidelines.
• Support monitoring optimization, ITIL improvements, and operational readiness for new services and projects.

Requirements

• At least 2 years of experience in telecommunications, network operations, mobile data services, or IT infrastructure.
• Understanding of mobile network architecture and 2G, 3G, 4G, and 5G services.
• Knowledge of Mobile Core technologies, including APN, DNS, Diameter, Radius, PGW, and EPC/ePC.
• Understanding of IPv4/IPv6, routing, DHCP, subnetting, troubleshooting, ISP services, CDN, DNS, and Internet connectivity.
• Experience with network diagnostics and packet-analysis tools such as Wireshark, plus Incident, Change, and Problem Management processes.
• Good English communication skills required.

Nice to have

• Exposure to IoT/M2M services and knowledge of eBGP and routing principles.
• Experience with ELK/Kibana, service-monitoring platforms, and service-quality reporting.
• ITIL certification or practical ITIL experience.
• German language skills.

Culture & Benefits

• Stable employment based on an employment contract.
• Private medical care and life insurance.
• Access to Percipio, Coursera, Rodos, and a cafeteria benefits platform.
• Additional day off for your birthday and free parking.
• International projects and collaboration across Deutsche Telekom Group and Europe.