Senior Software Engineer, Digital Payments

Job overview

The Senior Software Engineer role is onsite in Chicago, IL, and compensation is not specified. Kunai builds technology solutions for financial services organizations; this position supports a digital payments modernization program integrating a major card network with a large U.S. financial institution. The role contributes to reliable payment systems and their modernization by engineering backend services, developing performance testing and validation approaches, and helping move services toward cloud-native environments. The engineer also supports PCI data-purging pipelines and event-driven services.

What you'll do

• Design and execute performance testing strategies
• identify bottlenecks and recommend improvements
• build and maintain Java backend services using PostgreSQL and OpenShift
• contribute to modernization and migration work
• participate in code reviews and technical planning
• support PCI data-purging pipelines and event-driven services.

What we're looking for

Skills & competencies

senior software engineer

digital payments

java

performance testing

backend services

postgresql

openshift

pci compliance

chicago il

kunai

financial services

Work arrangement

• Weekend coverage required

Benefits & perks

• Competitive compensation, professional development opportunities, and flexible work arrangements.

Why this role

Work spans legacy enterprise systems and cloud-native digital payments modernization.

About the employer

Kunai is hiring for this role. Industry: Custom Computer Programming Services. Sector: 54.