Specialist System Engineer for DNS and Observability team (hybrid)

About IONOS

At IONOS, we don't just manage servers – we shape the digital future for more than 6.2 million customers worldwide with our solutions. As Europe's leading hosting provider and a pioneer in independent cloud solutions, we are building next-generation infrastructure – from sovereign cloud architectures and high-performance GPU clusters to integrated AI automation tools.

What drives us is digital sovereignty for Europe and real impact for small and medium-sized businesses (SMBs) as well as large enterprises. We work in agile teams, rely on transparent structures, and believe that excellence and innovation only emerge through true team spirit.

Ready for your next step? Become part of IONOS and grow with us.

Join Our Team of Infrastructure Experts and Shape the Future of Our Services:

The TechOps DNS & Observability team at IONOS operates critical infrastructure components essential for the reliability of services across the IONOS Group and its brands (IONOS, IONOS Cloud, Arsys, Fasthosts, united-domains, InterNetX, Strato, Cronon, World4You, we22, home.pl). We work under NIS2 and ISO 27001 obligations — these are not optional quality standards, they are the floor we build on.

Our Observability squad runs the systems that tell the rest of the company what is going on:

• CAMS (Central Alert Management System, in-house) — the single pane of glass that consolidates alerts from 70+ source monitoring systems across the group.

• Patch Management and Reporting (PMR) — group-wide RPM/DEB inventory and patch status; in-house, KRITIS-relevant.

• Vulnerability Management — operating the Tenable Security Center with a 70 000-server license footprint across the group.

• Atlassian platform operations — we run the OS underneath the Jira (12 000 user licenses) and Confluence (4 000 user licenses) instances and collaborate closely with Service Management on the application layer.

• Splunk OS operations in close collaboration with TechSec.

• Nazara monitoring-as-a-service, Harbor container registry, Statistics (metric collection for 21 tenants), OpenSearch/Kafka/Cassandra/Grafana stacks, suricata IDS/IPS.

We are a multinational team — from Seville in the west to Bucharest in the east — with the team lead based in Karlsruhe.

Our tools and Methodologies:

• We use Puppet as our configuration management system; experience with Ansible, CFEngine or Salt is welcome.

• We believe in measuring everything. You'll work with our observability stacks (collectd/telegraf, Metrictank → moving to VictoriaMetrics/ClickHouse, ELK, Grafana, Icinga2) and help shape the Statistics 3.0 migration.