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W2 - Lansing, MI (Onsite) :: ESB API Integration Tester

Jobs via Dice Lansing, Michigan, United States

onsitefull-time
Posted Nov 11, 2025Apply by Dec 11, 2025

Role & seniority: ESB API Integration Tester / Middleware ESB QA Specialist (4–5 years in ESB and API testing)

Stack/tools

  • IBM Integration Products: IBM API Connect, DataPower, App Connect Enterprise, MQ

  • API testing/automation: ReadyAPI, SOAP UI, Postman

  • Data/quality: SQL (complex queries), security test practices, performance/load/regression testing

  • Healthcare data/tools: IBM ITX experience; log review and issue tracking

  • Monitoring/logging: Instana, AppDynamics, ACE dashboard interfaces

  • Optional: JMeter; advanced SoapUI features; CI/CD concepts

Top 3 responsibilities

  1. Lead ESB and API testing using IBM integration products; ensure robust test coverage for enterprise integrations

  2. Design and maintain automation frameworks; execute regression and performance tests to improve test scripts and benchmarks

  3. Assess data integrity, security, and performance via SQL queries; perform thorough log review and issue tracking for root-cause analysis

Must-have skills

  • 4–5 years in ESB and API testing with IBM products (API Connect, DataPower, ACE, MQ)

  • Proficiency with ReadyAPI, SOAP UI, Postman

  • Strong SQL skills for data integrity and performance testing

  • Experience with security, regression, performance, and load testing

  • Knowledge of public healthcare systems and IBM ITX data transformation/mapping

Nice-to-haves

  • JMeter and advanced SoapUI load-testing capabilities

  • CI/CD concepts as applied to regression test autom

Full Description

Dice is the leading career destination for tech experts at every stage of their careers. Our client, Bitsoft International, Inc., is seeking the following. Apply via Dice today!

ESB API Integration Tester

12+Months

Lansing, MI (Onsite)

Position Overview

An accomplished Middleware ESB QA Specialist is required to join our team, focusing on tests related to our enterprise-level integrations via IBM middleware solutions. A successful candidate will showcase a command over ESB testing practices, arrive with a detailed understanding of API testing techniques, and exhibit exceptional problem-solving prowess.

Core Responsibilities and Skills

Commanding engagement (4-5 years) with ESB and API testing, specifically utilizing IBM Integration Products: IBM API Connect, DataPower, App Connect Enterprise, and MQ.

Proficiency in employing cutting-edge testing tools such as ReadyAPI, SOAP UI, and Postman for both API testing and automation purposes.

Track record of designing innovative automation frameworks and continuously improving test scripts for comprehensive regression and performance benchmarking.

Skilled in crafting complex SQL queries that support data integrity checks, enhancements to system performance, and heavy-load testing strategies.

Robust understanding of various security protocols alongside expertise in conducting extensive performance, load, and regression testing.

Adept in analytical and troubleshooting techniques related to integration, complete with log review and issue tracking expertise.

Application of specialized knowledge in public healthcare systems, ensuring accurate functionality and data transaction assessments.

Experience with IBM ITX for intricate healthcare data manipulation mapping, transforming, and validating.

Demonstrated ability for clear communication, constructive teamwork, plus meticulous record-keeping.

Desirable Qualities

Experience with tools like JMeter and advanced SoapUI capabilities for load-testing purposes.

A grasp of the Continuous Integration/Continuous Deployment (CI/CD) paradigm as it relates to regression test automation.

Knowledge of IBM's ecosystem of monitoring and logging utilities, such as Instana, AppDynamics, or ACE dashboard interfaces.

multi-location

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