United Internet
united-internet.de
Actively hiring
Mobile Networks
Email Hosting & Delivery
Web Hosting & VPS
Consumer Internet Groups
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Products
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Jobs
Financials
How United Internet hires
Truth index
A 89/100
Ghost roles
0%
Stale roles
43%
Reposted roles
0%
United Internet scores A on the Alion truth index (A is best, E worst), measured over 7 open roles re-checked against its own hiring board: 0% look like ghost listings, 43% have gone stale and 0% are the same role posted again. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed
Overview
United Internet is a German internet group that owns the 1&1 telecommunications business, the IONOS hosting company and the GMX and WEB.DE mail portals. Its subsidiaries include Arsys and CM4all, and it hires data centre purchasing managers, site reliability engineers and project managers. The company is headquartered in Montabaur, Germany.
News
Tech stack
Technologies named in job postings at United Internet over the last 12 months, by layer, with the share of postings for each.
Technologies in use
65
Postings analysed
21
Stack modernity
84/100AI adopter
Languages
Python43%
Bash24%
Java14%
Go10%
Frameworks & libraries
React.js19%
Zustand14%
Asyncio10%
FastAPI10%
Databases
ElasticSearch10%
Qdrant10%
Weaviate10%
PostgreSQL10%
Cloud & platforms
Linux48%
Grafana19%
Anthropic10%
GitHub Actions10%
AI & ML
LLM19%
DeepSeek10%
Qwen10%
Claude5%
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Full United Internet tech stack
65 technologies · by team · pay by technology · changes · similar stacks
People
Ralph Dommermuth
Vorstand
Carsten Theurer
Vorstand
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data
Growth
Hiring Momentum
68/100
Growing
Open positions
32
4 opened / 4 closed in 30 days
Median time-to-fill
117 days
faster than 12% of the market
ATS activity
Every ~4 hours
Today
Hiring Dynamics
+100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
DevOps
18% ▼
Security
18% ▲
Sales
14% ▼
Early Careers
14% ▲
Enterprise Apps
11% ▼
Operations
11% ▲
Actively hiring for Security (+5 in 30 days)
Activity Timeline
New location: Zweibrücken
Oct 2026
New location: Karlsruhe
Oct 2026
New location: Berlin
Oct 2026
Added JavaScript to stack
Oct 2026
Added Spring Boot to stack
Oct 2026
Added PHP to stack
Oct 2026
Added Agile to stack
Oct 2026
Added n8n to stack
Oct 2026
Added Claude to stack
Oct 2026
Offices
Where the company hires and what each office is for
Cities
6
Hiring now
4
Countries
2
Busiest office
Montabaur
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Headquarters
Builds here
Office with open vacancies
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Montabaur
Germany
HQ
2 open roles 2 posted in 90 days 100% engineering 10-50 est. staff
hires for Enterprise Apps
Karlsruhe
Germany
Support & operations
IONOS Service GmbH
18 open roles 15 posted in 90 days 33% engineering 50-200 est. staff
hires for Security, Early Careers, DevOps
Berlin
Germany
Support & operations
IONOS Cloud GmbH
14 open roles 13 posted in 90 days 43% engineering 50-200 est. staff
hires for DevOps, Security, Operations
Zweibrücken
Germany
Support & operations
IONOS Service GmbH
2 open roles 1 posted in 90 days 1-10 est. staff
hires for Sales, Customer Success
Lugo
Spain
Regional office
IONOS Cloud S.L.U.
Regensburg
Germany
Regional office
InterNetX GmbH
Jobs
≈ $64k – $139k per year (Estimated) • Hybrid • Berlin
LLM
Human-in-the-Loop
LLM Guardrails
Tool Use
Frontend
Zustand
React.js
DevOps
Linux
DNS
Cybersecurity
ISO 27001
Least Privilege
Apply
≈ $78k – $146k per year (Estimated) • Hybrid • Berlin • Karlsruhe
Python
Bash
CI/CD
IAM
Linux
Cybersecurity
DefectDojo
NIST CSF
CIS Benchmarks
OWASP ASVS
CVSS
Threat Modeling
PKI
SIEM
OWASP
Apply
≈ $55k – $108k per year (Estimated) • Hybrid • Berlin
Apply
≈ $61k – $142k per year (Estimated) • Hybrid • 3+ years exp • Karlsruhe
LLM Guardrails
Management
Jira
Scrum
Kanban
Apply
≈ $83k – $202k per year (Estimated) • Hybrid • Karlsruhe
Incident Management
Cybersecurity
ISO 27001
Apply
≈ $80k – $196k per year (Estimated) • Hybrid • Berlin
Incident Management
Cybersecurity
ISO 27001
Apply
≈ $57k – $112k per year (Estimated) • Hybrid • Karlsruhe
Python
Puppet
Ansible
Debian
Nginx
CentOS Stream
Linux
BGP
Apply
≈ $66k – $143k per year (Estimated) • Hybrid • Karlsruhe
LLM
Human-in-the-Loop
LLM Guardrails
Tool Use
Frontend
Zustand
React.js
DevOps
Linux
DNS
Cybersecurity
ISO 27001
Least Privilege
Apply
≈ $52k – $122k per year (Estimated) • In office • Full-Time • Montabaur
Apply
≈ $57k – $114k per year (Estimated) • Hybrid • Berlin
Python
Go
Bash
Terraform
Helm
GitHub Actions
Fluentd
Prometheus
VictoriaMetrics
GitLab CI
CI/CD
ArgoCD
Kubernetes
Grafana
Linux
Apply
≈ $59k – $117k per year (Estimated) • Hybrid • Karlsruhe
Python
Go
Bash
Terraform
Helm
GitHub Actions
Fluentd
Prometheus
VictoriaMetrics
GitLab CI
CI/CD
ArgoCD
Kubernetes
Grafana
Linux
Apply
≈ $67k – $110k per year (Estimated) • Hybrid • Karlsruhe
SQL
Tableau
Looker
Apply