Lead Linux Engineer
About the position 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. Responsibilities • Lead the design, implementation, and management of enterprise-class Linux infrastructure solutions across on-prem and cloud environments. • Work closely with other engineering groups, development teams, and product owners to gather, analyze, and validate infrastructure requirements. • Administer, configure, and troubleshoot Red Hat Enterprise Linux or Oracle Linux systems. • Manage and support Java middleware platforms such as JBoss EAP, WebLogic, WebSphere, as well as Apache HTTP, Tomcat, and JDBC connectivity. • Work with SAML, SSL certificates, ciphers, and understand firewall rules, DNS configurations, and troubleshooting access or connectivity issues. • Automate system tasks using tools like Ansible, Rundeck, and support infrastructure orchestration and post-provisioning automation. • Demonstrate working knowledge of networking protocols such as TCP/IP, DNS, NFS, and manage associated components. • Design and implement High Availability (HA) and Disaster Recovery (DR) solutions to ensure system resilience and uptime. • Create detailed technical documentation, including Visio diagrams, build guides, and configuration standards. • Provide expert-level support for escalated infrastructure issues, coordinate with stakeholders, and ensure SLAs are met. • Manage multiple tasks and projects in parallel, work with project managers to communicate status, mitigate risks, and deliver high-quality outcomes. Requirements • 8+ years of experience in Linux system engineering in large-scale enterprise environments. • Proficiency in Red Hat or Oracle Linux system administration. • Hands-on experience with Java Middleware, Apache/Tomcat, SSL/SAML, and JDBC. • Automation experience using Ansible, Rundeck, or similar tools. • Strong networking knowledge: TCP/IP, DNS, firewall rules, NFS. • Experience with HA and DR solutions in enterprise settings. • Excellent documentation, communication, and customer service skills. • Strong analytical, problem-solving, and multitasking abilities. • Ability to work across multiple time zones and collaborate in a distributed environment. Nice-to-haves • Red Hat Certified Engineer (RHCE) • Oracle Linux System Administrator Certification • ITIL Foundation • Ansible Certification Apply tot his job