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Gamma DE Tech Stack

German telecom provider with UCC, cloud voice, and DSL solutions

Telecommunications Oberkotzau, Bayern 51–200 employees Founded 1997 Public Company

Gamma DE (HFO Telecom) operates a regional German telecom business spanning voice, data, and unified communications services. The tech stack is straightforward—SIP, Java, C#, Python, and Microsoft 365—with a 51–200-person org split evenly between engineering and ops roles, plus a modest sales team. Active projects reveal a shift toward deeper operator integrations and custom customer solutions, while billing automation and fraud detection emerge as persistent internal pain points, suggesting the core business is scaling faster than backend systems can handle.

Tech Stack 10 technologies

Core StackJava C# Python Jira Confluence Trello Microsoft Office SIP Lucid Microsoft 365

What Gamma DE Is Building

◆Challenges

Automating billing processes
Integrating with network operators
Ensuring correct data flows
Digitizing accounting processes
Fraud in telecom

▲Active Projects

Kundenspezifische informations- und kommunikationslösungen
Esim solution development
Integration of interfaces with network operators
Improvement of network operator portals
Digitizing accounting processes
Sales projects with wholesale partners
Customer-specific it system solutions
Fraud monitoring in telecom

Hiring Activity

Steady20 roles · 6 in 30d

Department

Engineering

5

Ops

5

Sales

4

Finance

3

Product

1

Seniority

Intern

9

Mid

9

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About Gamma DE

Gamma DE is a public telecom provider based in Oberkotzau, Bavaria, founded in 1997. The company sells UCC solutions, cloud-based phone systems (Cloud-Telefonie), IP-Telefonie, SIP trunks, and DSL services through a direct sales channel and a network of co-branding partners. Core offerings include customer-specific communication solutions, consulting, and managed service delivery. The org is actively working on eSIM solutions, operator portal improvements, and integration middleware—implying a push to modernize legacy telecom infrastructure and deepen wholesale relationships.

HeadquartersOberkotzau, Bayern

Company Size51–200 employees

Founded1997

Hiring MarketsGermany