Senior Site Reliability Engineer

Stack

Responsibilities

• ▹Ensure availability, reliability and performance of high-traffic, distributed Java applications
• ▹Troubleshoot complex issues in production and non-production environments
• ▹Participate in pre- and post-deployment performance testing and monitoring
• ▹Optimize Java application performance: JVM tuning, resource utilization, horizontal scaling
• ▹Deploy and manage the Grafana stack (Grafana, Prometheus, Loki, Mimir, Alloy) for real-time monitoring, logging and alerting
• ▹Refine observability strategies; maintain dashboards, alerts and log queries
• ▹Integrate AI/ML models into the observability pipeline for anomaly detection, predictive alerting and alert noise reduction
• ▹Design, build and operate agentic AI workflows for alert triage, root cause analysis, runbook execution and incident summarization
• ▹Develop tool-calling LLM agents that interact with infrastructure APIs (Kubernetes, Grafana, Jira, Slack, PagerDuty), autonomously or with human-in-the-loop approval
• ▹Build and maintain MCP (Model Context Protocol) servers exposing internal systems to AI agents
• ▹Evaluate, select and operationalize LLM frameworks and orchestration platforms (LangChain, LangGraph, CrewAI, n8n or custom)
• ▹Implement guardrails, evaluation harnesses and feedback loops for accurate, safe AI agent output

Requirements

• ▹Based in Poland, fully remote, B2B
• ▹Deep infrastructure expertise, JVM tuning and PromQL
• ▹Hands-on experience with agentic AI workflows and tool-calling LLMs

Soft skills

About the company

Hard Rock Digital aims to become the best online sportsbook, casino and social gaming company in the world. The Hard Rock brand is known worldwide in gaming, entertainment and hospitality.