✦ Luna Orbit — DevOps & SRE

Site Reliability Engineer (Mainframe)

at Fidelity National Information Services

Hybrid 💰 $119K – $200K USD / year Posted March 13, 2026
Salary $119K – $200K USD / year
Type Full-Time
Experience mid
Exp. Years 3+ years
Education Bachelor's degree in computer science, Information Systems
Category DevOps & SRE

This role focuses on modernizing mainframe applications, enhancing observability, automation, and resiliency, while supporting both legacy and microservices environments.

  • Modernize mainframe applications
  • Implement automation and monitoring
  • Ensure application resiliency
  • Support microservices integration
  • Optimize performance and capacity

The technical environment includes mainframe systems with COBOL and RPG, alongside modern Java, .NET, Angular, and automation tools, emphasizing application resiliency and performance.

The ideal candidate is a mid-level engineer experienced in mainframe technologies like COBOL and RPG, with skills in modern application development (Java, .NET, Angular) and expertise in automation, monitoring, and disaster recovery processes.

Mainframe technologiesCOBOLRPGJava.NETautomationmonitoringdisaster recoverycapacity planningperformance tuningincident response
observabilitymicroservicesapplication resiliencyperformance optimization
Monitoring toolsDisaster recovery toolsCapacity planning toolsIncident management systems
MainframeCOBOLRPGJava.NETAngularautomationmonitoringdisaster recoverycapacity planningperformance tuningincident responseobservabilitymicroservices
MainframeCOBOLRPGJava.NETAngularautomationmonitoringdisaster recoverycapacity planningperformance tuningincident responseobservabilitymicroservices
problem-solvingcommunicationteamworkanalytical thinkingadaptability
Industry Fintech
Job Function Modernize legacy mainframe systems and improve application resiliency
MainframeCOBOLRPGJava.NETAngularautomationmonitoringdisaster recoverycapacity planningperformance tuningincident responseobservabilitymicroservices

Lack of mainframe experience, No background in automation or monitoring, Unwillingness to work in hybrid environment

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