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IONOS Group Tech Stack

European cloud and hosting provider scaling infrastructure and security operations

IT Services and IT Consulting Montabaur, Rhineland-Palatinate 1,001–5,000 employees Public Company

IONOS Group operates a diverse infrastructure stack spanning SQL Server, PostgreSQL, Kubernetes, and AWS—the mix signals a legacy-plus-cloud migration in progress. Active hiring across engineering, support, and security (126 roles combined) combined with projects around Kubernetes observability, vulnerability management tools, and security certifications indicates a push to modernize compliance and platform reliability. The company is also adopting Kafka and GitHub Copilot, suggesting moves toward real-time data pipelines and AI-assisted development.

Tech Stack 200 technologies

Core StackSQL Server Power BI PostgreSQL Kubernetes Trino Python AWS Linux Go HubSpot Active Directory Oracle SQL Server Integration Services SQL Server Analysis Services IONOS Icinga LibreNMS CentOS AlmaLinux Debian Ubuntu Linux Kernel C Bash RDMA RAID Infor LN Windows WildFly HAProxy+170 more

AdoptingKafka GitHub Copilot PRINCE2 Claude

What IONOS Group Is Building

◆Challenges

Software performance and scalability concerns
Compliance with financial regulations
Platform reliability
Standardizing finance processes
Managing security risk across corporate group
Maintaining high availability
Improving tax processes
Improving conversion rate
Mitigating risks
Adopting ai tooling

▲Active Projects

Security training program development
Offer management optimization
Security certifications
Kubernetes observability solution implementation
Dim open-source project
Sedotmp
Search arbitrage
Develop and run technical security tools for vulnerability management
Ai api integration
Continuous improvement of tax processes

Hiring Activity

Steady160 roles · 55 in 30d

Department

Engineering

52

Support

18

Marketing

14

Product

12

Security

12

Ops

11

Sales

10

HR

7

Seniority

Mid

49

Senior

49

Manager

18

Intern

15

Junior

9

Staff

5

Lead

4

Director

2

Notable leadership hires: Team Lead, Ad Quality Lead, Head of Tax, PPC Director, Digital Art Director

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About IONOS Group

IONOS Group is a public company headquartered in Germany operating as a leading European cloud enabler and SMB digitalization partner. The organization serves mid-market and small-business customers across hosting, cloud infrastructure, and related services. With 1,001–5,000 employees and active operations in Romania, Germany, Spain, Philippines, Denmark, the United Kingdom, and the United States, IONOS maintains a broad geographic footprint. The company's engineering-heavy hiring (52 open roles) aligns with ongoing infrastructure modernization, while security and support hiring reflects pressure to strengthen compliance and platform stability.

HeadquartersMontabaur, Rhineland-Palatinate

Company Size1,001–5,000 employees

Hiring MarketsRomania, Germany, Spain, Philippines, Denmark, United Kingdom, United States

Frequently Asked Questions

What tech stack does IONOS Group use?

IONOS Group's primary stack includes SQL Server, PostgreSQL, Kubernetes, AWS, and Linux distributions (CentOS, AlmaLinux, Debian, Ubuntu). They also run monitoring tools like Icinga and LibreNMS, use Python and Go for development, and deploy Oracle and Active Directory in enterprise environments.

What is IONOS Group working on?

Active projects include Kubernetes observability implementation, security training and certifications, vulnerability management tooling, AI API integration, and continuous improvement of tax and offer management processes. The company is also adopting Kafka, GitHub Copilot, and Claude, indicating investment in data pipelines and AI tooling.