Senior/Expert Site Reliability Engineer (SRE) responsible for deep-diving into application development, ensuring scalability, stability, and performance. Duties include managing and maintaining product, middleware, and big-data applications and services; performing deployments, performance tuning, and troubleshooting; designing and developing automation workflows; managing capacity and resources; conducting stress tests; and preparing operational documentation. Requires a Bachelor's degree in a relevant field and at least 3 years of SRE experience. Strong Linux, networking, and programming skills (Bash, Python, or Go) are essential.