Senior Site Reliability Engineer

Location: Poland only, fully remote Job Type: B2B, full time Overview Hard Rock Digital is a team focused on becoming the best online sportsbook, casino, and social gaming company in the world. We care about each customer's interaction, experience, behaviour, and insight and strive to ensure we’re always acting authentically. Rooted in the kindred spirits of the Seminole Tribe of Florida, the new Hard Rock Digital taps a brand known all over the world as the leader in gaming, entertainment, and hospitality. We’re taking that foundation of success and bringing it to the digital space. What’s the position? We are looking for a Senior Site Reliability Engineer who combines deep infrastructure expertise with a forward-thinking approach to AI-driven operations. In this role you will maintain and improve the reliability, scalability, and performance of our Java-based applications while pioneering the use of large language models (LLMs), agentic workflows, and intelligent automation to transform how we monitor, respond to, and prevent incidents. You will design and build autonomous and semi-autonomous AI agents that consume observability data, triage alerts, generate runbooks, automate incident response steps, and surface actionable insights—reducing toil and accelerating mean time to resolution. This is a hands-on engineering role for someone who is equally comfortable tuning a JVM, writing PromQL, and prototyping an agentic pipeline with tool-calling LLMs. Key Responsibilities Application Reliability & Performance Ensure the availability, reliability, and performance of high-traffic Java-based applications in a distributed environment. Troubleshoot and resolve complex issues across production and non-production environments. Participate in pre- and post-deployment performance testing and monitoring to continuously improve application performance. Optimize Java application performance with a focus on JVM tuning, efficient resource utilization, and horizontal scaling. Moni