CareerPlanSign in

Software Engineer II

O'Fallon, Missouri, US💼 Full-time🗓 2026-10-01 → 2026-10-02

Core

Design, develop, test, deploy, and support automated software solutions for AI & Decision Product Enablement platforms, focusing on validating applications, services, APIs, and system integrations. (via careerplan.io/jobs/R-288896-software-engineer-ii-at-mastercard)

Role type

Mid-level IC Software Engineer (Quality Engineering/Automation)

Builds

Automated test frameworks, validation solutions, and reusable components for global-scale decisioning and fraud prevention platforms.

Domain

Fintech / Payments / AI & Decisioning

Required skills

Java, Selenium, CI/CD pipelines, API integration (gRPC), distributed systems debugging, unit/integration/regression testing, Agile methodologies

Preferred skills

None explicitly stated

Technologies

Java, Selenium, gRPC

Responsibilities

Design and maintain automated test frameworks and suites; Develop and execute unit, integration, regression, and end-to-end tests; Collaborate with engineers to embed quality throughout the SDLC; Troubleshoot and analyze defects in distributed systems; Contribute to architecture discussions and code reviews; Create technical documentation for automation strategies.

Seniority

Mid-level, hands-on IC