Mainframe Developer

Title: QA Automation Engineer

Location: Hybrid - 3 days in office in Mexico City (Azcapotzalco) or Toluca

Duration: Full Time

Role Summary:

Lead and scale test automation across modern and legacy platforms, ensuring quality, traceability, and release confidence.

Key Responsibilities:

• Design and maintain scalable automation frameworks and regression suites.
• Build API, integration, end-to-end, and non-functional automated tests.
• Integrate quality gates and automation into CI/CD pipelines.
• Mainframe experience (COBOL, CICS, JCL, TSO, DB2 or similar).
• Define test data strategy and maintain traceable quality evidence.
• Identify quality risks early and drive remediation plans.
• Define Test strategy and produce Test Project Completion Certificates

AI Skills for This Role:

• Use AI to propose test scenarios, edge cases, and coverage gaps.
• Use AI support for defect triage and regression prioritization.
• Generate initial automation scaffolds with AI, then validate and harden them.
• Critically review AI-generated assertions and expected outcomes.

Required Qualifications:

• 6+ years in QA automation/SDET roles.
• Strong experience with API/service testing and automation frameworks.
• Strong understanding of test strategy and quality metrics.
• Good SQL/data validation skills.
• English proficiency: professional working level or above (B2/C1 preferred).

Nice to Have:

• Experience in regulated and mission-critical systems.
• Exposure to performance testing, contract testing, and test data management.

Work model : Hybrid - 3 days on-site at Client's offices in Azcapotzalco (CDMX) or in Toluca