Site Reliability Engineer (m/w/d) (ID: 694)

Berlin, Germany
IT Management

1&1 IONOS is a leading provider of cloud infrastructure, cloud services, and hosting with more than eight million customer contracts. The product portfolio offers everything that companies need to be successful in the cloud: from domains to classic websites and do-it-yourself solutions, from online marketing tools to full-fledged servers and IaaS solutions. The portfolio is aimed at freelancers, small businesses, and consumers as well as enterprise customers with complex IT requirements.

1&1 IONOS was created in 2018 from the merger of 1&1 and IaaS provider ProfitBricks. 1&1 IONOS is part of the listed United Internet AG (ISIN DE0005089031). The 1&1 IONOS brand family includes STRATO, Arsys, Fasthosts, InterNetX, SEDO, United Domains and World4You.


  • Operate our platforms and ensure resilience and performance at scale by fully leveraging the stack.
  • Maintaining and scaling our platform infrastructure and delivering our core revenue-critical services and applications in a fast, stable, resilient, and available manner.
  • Automating and building automated systems.
  • Resolving issues due to our business size and ensuring the same mistakes don't happen twice, as well as automating operational tasks.
  • Work closely with software developers to influence and create new designs, architectures, and standards, and provide expert advice to technical teams to build resilient, scalable, and efficient services.
  • Create and drive product maturity reports and post-mortem analyses.
  • Participate in software performance analysis and system tuning.
  • You help other DevOps team to make existing services SRE-ready or developing new features, by defining SLIs/SLOs/Error Budgets including required metrics and deployment/rollback mechanisms


  • You have several years of experience with Prometheus, Ansible, Python and Go.
  • You have scientific based software development approach based on metrics.
  • You have experience how to identify and place these to enhance the quality of code going into production.
  • You have strong background in automation, especially regarding software deployment (CI/CD).
  • You have experience in creating PostMortems and strong communication skills to discuss with stakeholders.


As an employer we offer our employees a future-proof workplace with exciting projects, individual further training opportunities and the best perspectives.

  • Active corporate culture: Our interaction is characterized by flat hierarchies, transparency, open communication and short decision- making paths.
  • Variety of further trainings: We offer a large range of personal and professional further trainings – via e-learning and seminars, conferences as well as mentoring.
  • Tech benefits 1&1 is a Tech company: Internal conferences, lectures series and trainings on a wide range of IT topics are organized by the TEC-Campus on a regular basis. Externally we are active in Open-Source Projects and we participate in meet-ups and user groups, also on our own premises.
  • Employee events: We celebrate our success in our teams: There are legendary summer and winter parties at 1&1. Additional workshops and team events ensure our unique team spirit.
  • Attractive JobBike: Via JobBike, we offer our employees the opportunity to lease their individual dream bike easily and favorably and, additionally, we also fund this offer.
  • Flexible working time: Our trust-based working times facilitate flexibility in the scheduling of working time.
  • Staff benefits: Our employees receive staff discounts on 1&1 products and a range of leisure activities. On top of that we provide financial advantages, for instance for corporate pensions.
  • Health measures: Besides internal sport and health courses, we offer lectures about health. Furthermore, you get staff discounts in selected gyms and health centers.

Please submit your complete application below including your salary expectations and earliest starting date.

If you have any further questions, please feel free to contact us.

Updated: 1 month ago
Job ID: 3399942
About 1&1 IONOS SE
1&1 IONOS ist mit mehr als acht Millionen Kundenverträgen der führende europäische Anbieter von Cloud-Infrastruktur, Cloud-Services und Hosting-Dienstleistungen.
201-500 employees
Information Technology and Services
Greifswalder Straße 207, Berlin, Deutschland
Greifswalder Straße 207, Berlin, Deutschland
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Contact Person
 Christina Assorian
Christina Assorian
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