We are looking for a highly skilled Lead Linux Engineer to drive the end-to-end delivery of robust infrastructure solutions for Fiserv customers. The ideal candidate will work collaboratively with cross-functional teams including Development, Product, and other Engineering functions, and bring deep technical expertise across Linux systems, automation, middleware, and cloud/on-premise infrastructure. This role demands strong troubleshooting skills, a consultative mindset, and the ability to balance multiple tasks while maintaining high service quality.