TNG Stadtnetz GmbH Tech Stack

German fiber-optic ISP covering 250,000+ homes across multiple regions

Telecommunications Kiel, Schleswig-Holstein 201–500 employees Founded 1997 Public Company

TNG operates a vertically integrated fiber and broadband network across Germany, serving 250,000+ homes with internet, voice, mobile, and TV. The company is mid-cycle in its infrastructure expansion—currently managing complex migration projects and backbone/metro network upgrades while simultaneously tackling internal IT modernization (system optimization, IFRS digitalization, legacy code maintenance). Hiring skews heavily junior and intern-focused, suggesting capacity building for operational scale rather than specialized expertise.

Tech Stack 16 technologies

Core StackCisco Linux Java PostgreSQL Kubernetes VPN TCP/IP VDSL Ethernet Windows Jakarta EE Microsoft Office Juniper Outlook Excel Business Central

What TNG Stadtnetz GmbH Is Building

◆Challenges

Disaster recovery
Patch management
Monitoring revenue and sales changes
Optimizing internal system
Managing change requests
Maintaining legacy code
Störungen im second und third level support
Komplexe migrationsprojekte
Expanding network coverage
Digitalizing accounting processes

▲Active Projects

Internal system optimization
Komplexe changes- und migrationsprojekte
Backbone und metro netzsegmenten
Digitalizing accounting processes
Implementing ifrs

Hiring Activity

Steady30 roles · 8 in 30d

Department

Engineering

Sales

Support

Ops

Finance

Seniority

Intern

Junior

Mid

Manager

Senior

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About TNG Stadtnetz GmbH

TNG Stadtnetz is a German telecommunications provider founded in 1997 and headquartered in Kiel. The company owns and operates fiber-optic, VDSL, and wireless networks across northern, central, and increasingly southern Germany, having expanded via acquisition of sdt.net AG in 2023. With over 330 employees across four sites, TNG manages the full stack from network planning and construction through operations and retail services. The tech footprint reflects telecom infrastructure operations: Cisco and Juniper routing, VPN/TCP/IP transport, Linux/Windows systems management, and PostgreSQL databases for customer and network data.

HeadquartersKiel, Schleswig-Holstein

Company Size201–500 employees

Founded1997

Hiring MarketsGermany

Frequently Asked Questions

What technology does TNG Stadtnetz use?

TNG operates Cisco and Juniper network infrastructure, VDSL and fiber connectivity, with Linux/Windows systems, PostgreSQL databases, Kubernetes orchestration, and Java application services.

Where is TNG Stadtnetz headquartered and how many employees?

Headquartered in Kiel, Germany, with over 330 employees across four locations: Kiel, Felde (Schleswig-Holstein), Breitenbach (Hessen), and Aalen (Baden-Württemberg).

How many homes does TNG Stadtnetz serve?

TNG passes over 250,000 homes (Homes Passed) across Germany, making it one of the country's largest broadband providers.