QA Integration, Engineer

Role Overview

Masterworks is seeking a QA Integration Engineer to work at Client Site. This role ensures the robustness, reliability, and security of enterprise integration flows and middleware components built on the IBM webMethods integration layer.

Role Purpose

Develop comprehensive test plans, automate API verification, and execute rigorous scenario-based testing across core operational back-office platforms, third-party web services, and middle-tier microservices.

Key Responsibilities

Testing Strategy & Planning

• Review integration specifications, Swagger/OpenAPI docs, and data mapping sheets to formulate end-to-end testing strategies.
• Design, build, and execute functional, regression, boundary, and negative test scenarios for REST and SOAP APIs running across IBM webMethods.

API & Data Validation

• Validate bidirectional data exchange and state changes between external/internal APIs and underlying operational systems (ERP, enterprise asset management, legacy databases).
• Conduct payload structure validation, schema validation (JSON/XML), data transformation checks, and transaction rollback verification.
• Proficiency in writing complex SQL queries to validate database-level state changes after API execution.

Test Automation & CI/CD

• Build and maintain automated API test suites integrated with CI/CD deployment pipelines.

Non-Functional Testing

• Execute non-functional integration testing, including rate limiting, API latency benchmarks, error-handling resilience, and token authentication (OAuth, mTLS).

Defect Management & Coordination

• Track and document integration defects, coordinate root-cause analysis with the webMethods development team, and monitor fixes to closure.

Qualifications & Experience

• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or equivalent practical experience.
• 5+ years of dedicated software quality assurance experience.
• At least 2 years focused specifically on middleware, microservices, and API integration testing.
• Direct working knowledge of testing within Enterprise Service Bus (ESB) or integration middleware ecosystems (IBM webMethods, Software AG, or comparable platforms like MuleSoft/TIBCO).

Skills & Competencies

• High proficiency in API testing tools such as Postman, Newman, SoapUI, ReadyAPI, or JMeter.
• Strong grasp of API authentication protocols, message brokers, HTTP status code semantics, and distributed system architectures.
• Automated testing scripts (Python/JavaScript).
• CI/CD test automation (Azure DevOps/GitLab).
• XML/JSON parsing.
• Mock service virtualization.

Additional Information

• ISTQB Certified Tester (Advanced Level - Technical Test Analyst or Agile Tester) certification is preferred.
• Postman API Fundamentals / Certified Automation certification is preferred.
• IBM Certified Associate (webMethods) certification is preferred.