Senior Elastic Engineer with GERMAN (m/f/d)
deutschetelekomitsolutionsslovakia
Košice, Košický kraj, Slovakia (Slovak Republic) · Košice · Slovakia
Posted Jun 1, 2026
- Full-time
- Hybrid
- OS GmbH
- Mid-Senior Level
deutschetelekomitsolutionsslovakia
Košice, Košický kraj, Slovakia (Slovak Republic) · Košice · Slovakia
Posted Jun 1, 2026
Company Description Our brand Deutsche Telekom IT Solutions Slovakia entered the life of Košice region in 2006 under the name of T-Systems Slovakia and ever since has been inextricably linked with the region when became one of the founding members of Košice IT Valley. We have managed to grow from scratch to the second largest employer in the eastern part of the country with more than 3900 employees. Our goal is to proactively find new ways to improve and continuously transform into the type of company providing innovative information and communication technology services. Job Description Purpose Perform, coordinate and improve most complex activities (3rd level environment) needed to provide IT services and the supporting infrastructure in order to fulfill relevant KPI’s. Plan, implement and maintain a stable technical infrastructure to support organization’s business processes. Identify weaknesses in used processes and eliminate them following industry and internal standards. Team description Join the team at operational services GmbH within Deutsche Telekom IT Solutions Slovakia, offering opportunities for German- and English-speaking talents in Slovakia. OS is one of the leading ICT service providers in the German market and is considered the backbone of digitalization for medium-sized companies. With nearly 1,300 highly qualified employees, OS develops and operates state-of-the-art IT systems, ensures long-term system support, and maintains the availability of critical business processes. WHAT WILL YOU DO? Design, implementation, and operation of complex Elastic clusters (Elasticsearch, Kibana, Beats, Logstash, Elastic Agent, ECK) Building and further development of highly available, scalable architectures (on-prem, cloud, or hybrid) Development of ingest pipelines, index strategies, and dashboards for Observability & Security Performance tuning, monitoring, capacity management, and troubleshooting in enterprise environments Implementation of security and compliance requirements (RBAC, TLS, SIEM/SOC, security features) Collaboration with DevOps, Security, and Infrastructure teams, as well as consulting internal stakeholders Participation in an on-call rotation Qualifications YOU WILL SUCCEED IF YOU: Have several years of experience with Elastic Stacks in enterprise environments Have valid Elastic certification (e.g., Elastic Certified Engineer, Analyst, Observability Engineer, Security Engineer) Deeply understand Elasticsearch internals (cluster architecture, sharding, query performance) Are experienced in Kubernetes deployments (e.g., Elastic Cloud on Kubernetes / ECK) Have excellent knowledge of Linux (Ubuntu, RHEL, or SUSE) Have strong knowledge of automation (Terraform, Ansible, GitOps, GitLab, Helm) Are proficient in Observability (logs, metrics, APM) and security topics (SIEM/SOC) Have strong communication skills, consulting ability, and team spirit Nice to have Additional certifications (in automation, Kubernetes, or IT security) Experience with multi-tenant or service provider architectures Knowledge in the field of enterprise data platforms Language Requirements German: Upper Intermediate (B2) English: Intermediate (B1) Additional Information WHY SHOULD YOU CHOOSE US? We believe in balance between work and personal life. An attractive and extensive work-life balance portfolio guarantees lasting motivation for employees and thus a better quality of life, promotes physical and mental well-being and contributes to a positive work environment. All this with the aim of providing more freedom in reconciling work, career growth, private life and individual lifestyle. Therefore we offer to our employees over 25 different benefits to improve their personal and professional life in these areas: Financial benefits Benefits with focus on learning and development Benefits with focus on health and sport Benefits with focus on family and work – life balance Other benefits For more information about our benefits click to Benefits Salary Final salary is negotiable. We are offering base salary depending on seniority level and previous experience of candidate. In addition to base salary we provide variable part and other financial benefits. Base salary will not be lower than 1850€ /brutto. Additional information * Please be informed that our remote working possibility is only available within Slovakia due to European taxation regulation.