Elasticsearch Consultant

Elasticsearch SIEM Engineer

Contract: Initial 6 months

Rate: Market rate - Inside IR35

Location: London – Hybrid

We are supporting a leading technology services organisation working with a major telecommunications client that is looking for an experienced Elasticsearch SIEM Engineer.

You will be responsible for designing, developing and supporting scalable Elastic Stack solutions, with a particular focus on security monitoring, log ingestion and SIEM capabilities.

Key responsibilities

• Design, deploy and maintain Elasticsearch, Logstash and Kibana environments
• Develop and optimise Logstash pipelines for security and operational data
• Onboard and enrich logs from cloud, infrastructure, network and security sources
• Create and tune Elastic SIEM detection rules, dashboards and alerts
• Improve cluster performance, resilience, scalability and data retention
• Automate deployments and configuration through Ansible and scripting
• Support containerised Elastic environments running on Kubernetes
• Manage streaming and ingestion workflows using Kafka
• Maintain CI/CD and GitOps processes through GitLab and Argo CD
• Collaborate with SOC, security, platform and infrastructure teams

Required experience

• Strong hands-on experience with Elasticsearch, Logstash and Kibana
• Experience implementing or supporting Elastic Security/Elastic SIEM
• Strong understanding of data ingestion, parsing, enrichment and alerting
• Experience with Ansible, Kafka and Kubernetes
• Experience using Argo CD and GitLab CI/CD
• Scripting experience with Python, Bash or similar
• Knowledge of Elasticsearch performance tuning, ILM, shards and cluster management
• Strong troubleshooting and stakeholder-management skills