API Test Engineer Mainframe & Middleware Testing

  • Jersey City, NJ
  • Posted 8 hours ago | Updated 8 hours ago

Overview

On Site
Depends on Experience
Contract - W2
Contract - 12 Month(s)

Skills

ESB
MQ
JSON XML

Job Details

Job Title: API Test Engineer Mainframe & Middleware Testing (Payments Preferred)
Location: Jersey City
Industry: FinTech / Banking / Payments

Experience:
Minimum 5+ years in backend testing with a strong focus on payments and banking systems. Expertise in mainframe and middleware technologies including MQ, and ESB. Proficient in validating JSON and XML data. Experience in financial services is highly preferred.

Roles and Responsibilities:
Conduct functional testing of backend systems involving mainframe and middleware components. Validate and compare JSON and XML data structures. Design and execute test cases for batch jobs and message queues. Work closely with development and business teams to ensure test completeness. Track and manage defects through resolution. Support integration testing and automation efforts.

Tool knowledge sought:
Strong experience in functional testing tools and methodologies. Familiarity with backend validation via custom scripts. Bruno knowledge is a plus. Exposure to scripting languages such as Python or Java and CI/CD pipelines. Understanding of Agile frameworks.

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