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Integration Tester

Apexon Lansing, Michigan, United States

onsitefull-time
Posted Feb 27, 2026Apply by Mar 29, 2026

Role & seniority: ESB Integration Tester, mid-level to senior (4–5 years’ experience)

Stack/tools: IBM API Connect, DataPower, App Connect Enterprise (ACE), MQ; ReadyAPI, SOAP UI, Postman; SQL; IBM ITX; JMeter; monitoring/logging tools (Instana, AppDynamics, ACE dashboards)

Top 3 responsibilities

  • Perform ESB/API integration testing across IBM tooling and validate functional/data flows

  • Build and maintain automation frameworks; enhance/optimize scripts for regression and performance testing

  • Develop SQL queries for data validation and support performance/load testing; conduct security protocol validation

Must-have skills

  • 4–5 years in ESB/API integration testing with IBM tools (APIC, DataPower, ACE, MQ)

  • Advanced API testing/automation with ReadyAPI, SOAP UI, Postman

  • Experience building/maintaining automation frameworks; regression, performance, and security testing

  • SQL for data validation; strong troubleshooting, log analysis, and defect management

  • Domain expertise in public health systems; IBM ITX mapping/transformation/validation

  • Good communication, collaboration, and documentation

Nice-to-haves

  • JMeter/SoapUI for advanced load testing

  • CI/CD-based regression automation

  • Familiarity with IBM monitoring/logging tools (Instana, AppDynamics, ACE dashboards)

  • Location & work type: Location not specified; work type not specified

Full Description

We are seeking an experienced ESB Integration Tester to support enterprise middleware projects utilizing IBM API Connect, DataPower, App Connect Enterprise (ACE), and MQ. The ideal candidate will possess hands-on expertise with ESB integration testing, robust API validation skills, and strong analytical and troubleshooting abilities.

Required Skills & Experience

4-5 years in ESB/API integration testing with IBM tools (APIC, DataPower, ACE, MQ). Advanced ReadyAPI, SOAP UI, Postman API testing and automation. Build and maintain robust automation frameworks from the ground up. Enhance and optimize existing automation test scripts for regression and performance testing. Develop SQL queries for data validation, performance tuning, and load testing scenarios. • Experience in security protocol validation and performance/load/regression testing. Proficient with integration troubleshooting, log analysis, and defect management. Apply domain expertise in public health systems to validate functional and data flows. Experience in IBM ITX (Transformation Extender) for mapping, transformation, and validation of healthcare data formats. Strong communication, collaboration, and documentation skills. Preferred Familiarity with JMeter/SoapUI for advanced load testing. Understanding of CI/CD-based regression automation. Exposure to IBM monitoring or logging tools (Instana, AppDynamics, ACE dashboards).

ESB Integration TestingAPI ValidationIBM API ConnectDataPowerApp Connect EnterpriseMQReadyAPISOAP UIPostmanAutomation FrameworksSQL QueriesSecurity Protocol ValidationPerformance TestingLoad TestingRegression TestingIBM ITXmulti-location

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