Site Reliability Engineer (f/m/d) - DNS and Infrastructure

at subsidary IONOS SE in Karlsruhe
Full-time | Permanent | Professionals
Reference ID: I-746

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About us

IONOS is the leading European digitalization partner for small and medium-sized businesses (SMB). The company serves around six million customers and operates across 18 markets in Europe and North America, with its services being accessible worldwide. With its Web Presence & Productivity portfolio, IONOS acts as a 'one-stop shop' for all digitalization needs: from domains and web hosting to classic website builders and do-it-yourself solutions, from e-commerce to online marketing tools. In addition, the company offers Cloud Solutions to enterprises who are looking to move to the cloud as their businesses evolve.   

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

We're a dynamic team of highly motivated infrastructure service experts, and we're looking for talented individuals like you to join our ranks. As a Site Reliability Engineer, you'll play a key role in planning, implementing, migrating, and operating our critical DNS, DHCP, NTP, and IP Management Services, working closely with system administrators and network engineers.

Tasks

• Collaborate with our team to design, develop, and operate high-available services on Linux, ensuring seamless integration with our operational requirements and product requirements.
• Take ownership of the full stack, from hardware to application, including configuration management and monitoring, and drive continuous improvement and development.
• Contribute to our open-source projects, such as DIM (github.com/ionos-cloud/dim) and monzero (github.com/ionos-cloud/monzero), and help shape the future of our infrastructure.
• Support our system administrators in automating operational tasks and rollouts, and provide interfaces for integration with our hosting products.
• Participate in an on-call service rotation, ensuring the smooth operation of our complex infrastructure.

Qualifications

• A degree in Computer Science or a comparable education, with a strong interest in infrastructure topics and good network knowledge.
• 5+ years of hands-on experience in administering complex services on Linux, with expertise in infrastructure as code and automation.
• Several years of experience in system-near development of highly available software artifacts, using programming or scripting languages like Go, Python, Bash, and Java.
• Practical experience with operating DNS, NTP (ntpd, chrony, Meinberg), DHCP, and IP-Management.
• Familiarity with Puppet or other configuration management systems, and experience with Observability Stacks.
• A passion for Open Source, especially Linux, and excellent communication skills in English (German is a plus).

Our Tools and Methodologies:

• We use Puppet as our configuration management system, but we're open to candidates with experience in other systems like Ansible, CFEngine, or Salt.
• We believe in measuring everything, so you'll work with Observability Stacks (e.g., collectd/telegraf, metrictank, influx, Grafana) to monitor and improve our services.
• Our network engineers work with BGP and DNS, and we're looking for someone with experience in these areas.
• We also use iBGP, eBGP, anycast routing, and ECMP to ensure high availability and efficient traffic management.

Benefits

• Hybrid working model with home office option.
• Flexible working hours through trust-based working hours.
• At some locations a subsidized canteen and various free drinks.
• Modern office space with very good transport connections.
• Various employee discounts for activities and products.
• Employee events such as summer and winter parties, as well as workshops.
• Numerous training and development opportunities.
• Various health offers, such as sports and health courses.

apply online now