Senior SDET Engineer (Mainframe Automation Testing)
Location: 100% Remote
Duration: 6+ Month Contract
USC and GC
Visa: H1B Transfers Acceptable | No H4, OPT, CPT
We are seeking a highly skilled Senior SDET Engineer to join a technology team supporting critical retirement and institutional custody platforms. This role is ideal for a quality-focused engineer with strong Mainframe testing expertise who is passionate about automation, validation, and delivering high-quality software solutions within complex enterprise environments.
As a member of a collaborative Agile team, you will be responsible for designing and executing testing strategies, building automation frameworks, validating large-scale data processing, and ensuring the quality and reliability of mission-critical applications.
Responsibilities
- Design, develop, and execute comprehensive test strategies for Mainframe applications.
- Build and maintain automated testing solutions for enterprise systems.
- Perform functional, integration, regression, and end-to-end testing.
- Validate data accuracy across large datasets and complex batch processes.
- Analyze requirements and translate them into detailed test scenarios and test cases.
- Collaborate closely with developers, product owners, and business stakeholders to ensure quality throughout the SDLC.
- Identify, document, track, and drive resolution of software defects.
- Participate in Agile ceremonies including sprint planning, backlog refinement, and retrospectives.
- Contribute to continuous improvement initiatives around testing processes, automation, and quality engineering standards.
- Mentor junior QA and SDET team members.
Required Qualifications
- 8+ years of Software Testing, QA Engineering, or SDET experience.
- Bachelor's Degree in Computer Science, Engineering, Information Technology, or related discipline.
- Strong Mainframe testing experience including:
- COBOL
- DB2
- JCL
- VSAM
- SQL
- SPUFI
- IBM Utilities
- Experience validating Mainframe batch processing and data integrity.
- Strong understanding of test planning, test execution, defect management, and quality assurance methodologies.
- Experience with:
- File-Aid
- CICS
- Control-M
- Endevor
- Eztrieve
- Experience working in Agile/Scrum environments.
- Strong troubleshooting, root cause analysis, and problem-solving skills.
- Excellent written and verbal communication skills.
Preferred Qualifications