Role Title: Elastic EngineerLocation: London Hybrid - 60% Office, 40% RemoteStart Date: ASAPDuration: 31/03/2026Rate: 430p/d via Umbrella Key Responsibilities: Expert-level knowledge of the Elastic Stack (Elasticsearch, Logstash, Kibana, Beats), with proven experience in architecting, deploying, and managing ELK infrastructure across distributed, high-performance environments. Strong understanding of index lifecycle management (ILM), shard optimization, and cluster health monitoring to support low latency applications. Practical and working knowledge of IP networking and data flow within distributed systems. Experience integrating ELK with packet capture/analysis tools to enhance observability of real-time systems. Hands-on expertise in data pipeline creation, ingestion strategies, and performance tuning of Logstash and Beats for scalable telemetry. Knowledge of Corvil and/or Pico tools is highly beneficial but not essential, particularly for ingesting network telemetry into Elasticsearch. Scripting proficiency in Python and/or PowerShell to automate ELK deployment, monitoring, and alerting pipelines. Experience designing and working with APIs (REST/JSON/XML) and integrating third-party data sources into the ELK stack. Exposure to Solace, 29West, Tibco, or other low latency messaging platforms is advantageous for understanding event-driven architectures in financial systems. Familiarity with trading infrastructures and protocols (FIX, Market Data, Order Entry, etc.), with a