Hybrid Mainframe QA Engineer - Billing & Automation

Nationwide Mutual Insurance Company; Columbus, Northern (OH, KY); Hybrid; USD 96,000 - 178,000; Full time

Benefits offered by this job

Medical/dental/vision

Life insurance

Disability coverage

Paid time off

401(k) with company match

Job summary

If you’re passionate about enabling a Fortune 100 company with a robust technology footprint to drive innovation, Nationwide Technology offers a hybrid role with preferred locations in Columbus, OH or Des Moines, IA; remote considered based on skills. You’ll lead testing across mainframe billing systems, data validation, and modern automation while collaborating with product owners and developers.

The role demands strong Mainframe and billing testing expertise, hands-on automation, and a drive

Qualifications

• Experience testing Mainframe-based applications and navigating batch processing environments.
• Strong DB2 SQL querying skills and experience validating backend data.
• Ability to execute, monitor, and validate Mainframe batch jobs and interpret processing results.
• Experience performing end-to-end testing for complex billing, financial, or other transaction-oriented systems.
• Understanding of test environments, test data, job sequencing, and validation of expected business outcomes.

Responsibilities

• Plan and execute functional, integration, regression, performance, and end-to-end testing for Personal Lines Billing capabilities.
• Execute and validate Mainframe batch jobs, including reviewing job results, processing outcomes, and expected billing behavior.
• Perform end-to-end billing testing across policy, account, payment, billing, and downstream processing flows.
• Develop and execute performance tests using JMX and load-testing scripts to evaluate application behavior, capacity, and scalability.
• Query DB2 using SQL to validate backend data, billing transactions, account and policy states, and downstream results.
• Create, maintain, and execute automated tests using Playwright, including AI-assisted test generation where appropriate.
• Use the Tosca automation framework and other low-code or no-code tools to expand efficient, repeatable test coverage.
• Analyze, document, prioritize, and manage defects through resolution, including clear evidence, impact assessment, and retest results.
• Partner with developers, product owners, analysts, and other testers to clarify requirements, identify risks, and define effective test scenarios.
• Contribute to reusable regression coverage and continuous improvement of testing practices, tools, and documentation.

Skills

Mainframe testing

DB2

Playwright

Tosca

AI-assisted testing

JMX

Tools

Playwright

Tosca

Low-code/No-code

Job description

If you’re passionate about enabling a Fortune 100 company with a robust technology footprint to drive innovation, Nationwide Technology offers a hybrid role with preferred locations in Columbus, OH or Des Moines, IA; remote considered based on skills. You’ll lead testing across mainframe billing systems, data validation, and modern automation while collaborating with product owners and developers.

The role demands strong Mainframe and billing testing expertise, hands-on automation, and a drive