> Markdown version of [/jobs/ext/3915862-mainframe-software-development-engineer-in-test](https://www.wearedevelopers.com/jobs/ext/3915862-mainframe-software-development-engineer-in-test). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mainframe Software Development Engineer in Test - **Company:** Broadcom - **Location:** Lisle, IL, United States - **Experience:** Expert - **Salary:** $109,700.0 - $175,500.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Agile Methodology, Data Analysis, Automation of Tests, Code Coverage, Continuous Integration, Job Control Language (JCL), Rexx (Programming Language), JSON, Apache JMeter, Junit, Python (Programming Language), Load Testing, Mainframes, Software Systems, Software Testing Automation Framework, Testng, TypeScript, Scripting, ReadyAPI, Restful APIs, SDET, Jenkins - **Published:** October 26, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3466725225&tx=KJ9999FFU&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role Knowledge: An experienced professional with a full understanding of area of specialization. This job is a fully qualified, career-oriented, journey-level position. The position involves testing and validation of mainframe-based applications. Job Complexity: Works on problems of diverse scope where analysis of data requires evaluation of identifiable factors. Demonstrates good judgment in selecting methods and techniques for obtaining solutions. Networks with senior internal and external personnel in own area of expertise. Supervision: Normally receives little instruction on day-to-day work, general instructions on new assignments. Experience: Typically requires a minimum of 5 years of relevant industry experience., * Practical experience in mainframe development and testing environment * Analytical mind with problem-solving aptitude * Proficiency with Job Control Language (JCL) for batch workload * Proficiency in Scripting languages (Python, JSON, REXX) * Proficiency in CI/CD test automation frameworks (Jenkins) * Strong understanding of Security protocols and ESMs * Experience with REST API Automation (RestAssured) is a plus * Experience with Java and Javascript/Typescript is a plus * Experience with Junit/TestNG framework is a plus * Experience with JMeter for Stress and Load testing is a plus ## Description We are looking for experienced Software Engineers in Test to participate in an Agile development environment producing functional software solutions for delivery to our customers. In this role, you should be able to work independently with little supervision while also collaborating with team members. You should have excellent organization and problem-solving skills, and experience in Agile development methodologies. The individual and team goal will be to develop high-quality software that is aligned with user needs and business objectives in a mainframe computing environment. Responsibilities * Performing validation and verification testing of both new features and product fixes * Developing and executing high-quality software tests in a continuous integration environment * Developing, implementing, and maintaining robust test automation pipelines * Assessing code coverage and identifying/resolving testing gaps * Automating tasks through appropriate tools and scripting * Ensuring test pipelines are up to date with latest technologies * Collaborating and providing Quality Assurance subject matter expertise in an Agile team environment * Coordination with management and internal teams