Senior Elastic Search Engineer

We are currently looking for an Elastic Search Engineer to strengthen the Cronos Europa team. As a member of the infrastructure and operations team, you will act as a Technical Lead to drive observability transformation initiatives. You will be responsible for designing and implementing enterprise-wide monitoring and observability solutions, leading legacy platform migrations, and defining governance standards to ensure scalability, reliability, and operational excellence across the IT ecosystem.

General information:

• Start Date: ASAP
• Duration: Long-term mission
• Workload: Full-Time
• Location: Luxembourg
• Shift Work : Yes
• On-Call: Yes

Responsibilities:

• Design and implement enterprise observability solutions covering logs, metrics, traces, and synthetic monitoring.
• Lead the migration of legacy monitoring platforms, including Splunk and Newtest/Ekara, towards modern observability tools.
• Define and maintain target observability architectures based on Elastic Stack and related technologies.
• Establish monitoring standards, governance frameworks, and performance KPIs across the organization.
• Create and manage dashboards to provide visibility into application performance, availability, latency, and error rates.
• Implement distributed tracing and performance monitoring capabilities for microservices and API-based architectures.
• Deploy anomaly detection and intelligent correlation mechanisms to proactively identify incidents and performance degradations.
• Collaborate with DevOps, SRE, and development teams to integrate Observability-as-Code and performance monitoring into CI/CD pipelines.
• Define alerting strategies, root-cause analysis processes, and incident detection best practices.
• Ensure security, governance, and lifecycle management of the observability platform.

Technical skills:

• Strong expertise with Elastic Stack (Elasticsearch, Logstash, Kibana), including clustering, data tiering, RBAC security, and lifecycle management (ILM).
• Hands-on experience with observability and monitoring platforms such as Dynatrace, Grafana, Prometheus, and ELK Stack.
• Experience leading Splunk-to-Elastic migration projects.
• Knowledge of synthetic monitoring solutions and automated end-user journey testing.
• Experience with Playwright and TypeScript is considered a strong asset.
• Good understanding of distributed tracing, APM solutions, and modern observability concepts.
• Experience deploying monitoring solutions in cloud and microservices environments (AWS and/or Azure).
• Strong scripting and automation skills using Python and/or Bash.
• Experience integrating monitoring and observability components into CI/CD pipelines (GitLab CI, Jenkins).
• Knowledge of Kubernetes and Docker environments.
• Experience with machine learning-based anomaly detection and data correlation is an advantage.

Profile:

• Bachelor’s or Master’s degree in Computer Science, Information Technology, or equivalent professional experience.
• Minimum 5 years of experience in Observability Engineering, Monitoring Engineering, Site Reliability Engineering, or a related field.
• Strong analytical and troubleshooting skills with the ability to identify and resolve complex performance issues.
• Proven experience designing enterprise-scale monitoring and observability architectures.
• Strong leadership skills with the ability to drive technical transformation initiatives and mentor technical teams.
• Excellent communication and documentation skills.
• Ability to work effectively with cross-functional teams in complex environments.
• Proactive mindset with strong problem-solving and continuous improvement capabilities.
• Relevant certifications in Dynatrace, Cloud Monitoring, Elastic, or Performance Testing are considered an asset.
• Fluency in English is mandatory. French is considered a strong asset.

Why Cronos Group?

We’ll propose you:

• An attractive salary package
• A good work-life balance environment
• The assurance of working in cutting-edge technologies in an entrepreneurial spirit.
• The opportunity to develop your skills thanks to tailor-made training courses according to your needs
• A good job in a friendly place

If you wish to integrate a dynamic structure on a human scale while working with the latest technologies, don't wait anymore and join Cronos!