Mainframe Developer Jobs in Milwaukee, WI (NOW HIRING)

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Job Title

TITLE: Quality Assurance Engineer

EMPLOYER: Fiserv Solutions, LLC

LOCATION: Milwaukee, WI (and various unanticipated locations throughout the US subject to authorization from management)

DUTIES: Design and implement scalable, distributed, and fault-tolerant systems, translating complex infrastructure requirements into automated QA workflows and validation frameworks. Lead quality review of infrastructure by validating stability, performance, rollout, and security of enterprise applications across voice platforms, mainframe systems, on-prem and cloud environments. Detect, diagnose, and resolve performance, reliability, and security issues using AI-driven monitoring, NLP-based log analysis, and automation tools. Lead and support enterprise applications across multiple operating systems and server platforms. Analyze business requirements by collaborating with product, development and operations teams to deploy and test software. Conduct functional, automated and regression testing during different phases of software development. Act as the quality gatekeeper in enterprise release management, validating deployments through CI/CD pipelines, ensuring compliance with change control policies, and providing QA sign-off for production releases. Review projects and architecture to capture requirements, perform impact analysis, and define QA strategies, frameworks, and validation timelines for enterprise-level infrastructure changes. Lead the Disaster Recovery (DR) Testing and enterprise-wide DR exercises by simulating outages, validating failover and recovery processes, and ensuring compliance with organizational business continuity standards.

REQUIREMENTS: Bachelor's degree in Computer Science, Computer Engineering or a related field and 2 years in any job title involving experience in hardware and software system functionality and performance verification. Prior experience must include 2 years in the following: Driving infrastructure resiliency and reliability validation initiatives to strengthen system stability and performance; Validating Enterprise application solutions and core business logic within applications; Working with operating systems including Unix, Linux, Windows, and Azure for system sizing; Working with Object-Oriented programming languages including Java or C#; Scripting with Python and PowerShell for automation and performance monitoring; Conducting root cause analysis and performing system reliability testing to identify and resolve infrastructure issues for improved quality and operational stability; Working with databases including MongoDB, relational databases, SQL, MySQL and SQL Server; Working with Enterprise Data handling best practices and IIS Hosted Environments; Working with cloud infrastructure and network fundamentals; Using monitoring tools including Azure Monitor, Dynatrace and Splunk; Using GIT, GITHub, Jenkins, Azure DevOps, and Gitlab; Working with QA methodologies and automation, performance, and security testing practices; and Creating technical reports of infrastructure configurations, support procedures, and QA test results.

TRAVEL: None

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