Jobs at Fiserv

Designs and executes enterprise performance tests, including load, stress, spike, and endurance testing. Analyzes application, server, and database behavior to identify bottlenecks and recommend tuning improvements. Collaborates with development, infrastructure, and DevOps teams to resolve issues, define SLA benchmarks, and integrate continuous performance validation into CI/CD pipelines. Uses observability tools, prepares performance reports, and supports testing of cloud, microservices, and AI-enabled workloads.

Designs, develops, tests, debugs, and maintains mainframe software applications supporting Fiserv’s financial services and payments business. Collaborates with cross-functional teams to translate requirements into technical specifications, improves existing codebases, and participates in peer reviews. The role requires experience with mainframe technologies, COBOL, JCL, CICS, VSAM, card-processing systems, software development, and SDLC practices.