Role: Systems Performance Engineer Lead SE Onsite in O Fallon, MO (2-3 days a week) Note: In-Person interview required 12-month contract Responsible for identifying and resolving end-to-end performance bottlenecks across distributed systems, Spring Boot services, middleware components, and hybrid cloud environments (private cloud + AWS). This role goes far beyond traditional testing by deeply analyzing container orchestration, networking paths, and system interactions under load. This position m