5+ years of software or platform engineering experience, ideally in high-performance systems. Strong proficiency in one or more backend languages (e.g., Ruby, Python, or Go). Deep understanding of distributed systems, caching, and database optimization. Hands-on experience with performance profiling, load testing, and monitoring tools (e.g., Datadog, Prometheus, Grafana). Experience with AWS or other cloud infrastructure providers. Excellent collaboration and communication skills.