Senior Mainframe QA Engineer

Posted 2 Days Ago
Be an Early Applicant
Ciudad de México, MEX
Hybrid
Senior level
Information Technology • Database • Consulting
The Role
Designs and maintains automated testing frameworks and regression suites for mainframe and service-based systems. Builds API, integration, end-to-end, performance, and non-functional tests; integrates quality gates into CI/CD; manages test data and quality evidence; identifies risks and drives remediation. The role also coordinates delivery plans, project milestones, governance, risk management, management reporting, and continuous improvement while partnering with onshore managers and stakeholders.
Summary Generated by Built In

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:

  • 5+ 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.
ResponsibilitiesPlan, monitor & manage operational delivery to ensure adherence to agreed quality parameters & timelines. Implement work management trackers, define roles & responsibilities of team members and roll out a work allocation / delivery plan to track completion
Work with onshore managers to agree on scope of work, key stakeholders, escalation matrices, project milestones & timelines
Design & Implement management information systems (MIS) for periodic status updates and to identify trends around business processes identified as high on risk / low on controls
Drive a culture of Risk and Governance across business processes. Institutionalize ethos of continuous improvement in risk management across all processes and sub processes in scope. Champion customer service to ensure that compliance is integrated in business processes
Demonstrate excellent project management skills, inspire teamwork and responsibility with engagement team members, and use current technology/tools to enhance the effectiveness of deliverables and services QualificationsProfessional certification such as CA, CPA, CISA or CIA. 7-9 years of experience. About Us
EXL (NASDAQ: EXLS) is a leading data analytics and digital operations and solutions company. We partner with clients using a data and AI-led approach to reinvent business models, drive better business outcomes and unlock growth with speed. EXL harnesses the power of data, analytics, AI, and deep industry knowledge to transform operations for the world’s leading corporations in industries including insurance, healthcare, banking and financial services, media and retail, among others. EXL was founded in 1999 with the core values of innovation, collaboration, excellence, integrity and respect. We are headquartered in New York and have more than 54,000 employees spanning six continents. For more information, visit www.exlservice.com.


EXL never requires or asks for fees/payments or credit card or bank details during any phase of the recruitment or hiring process and has not authorized any agencies or partners to collect any fee or payment from prospective candidates. EXL will only extend a job offer after a candidate has gone through a formal interview process with members of EXL’s Human Resources team, as well as our hiring managers.
About the TeamEXL is the indispensable partner for leading businesses in data-led industries such as insurance, banking and financial services, healthcare, retail and logistics. We bring a unique combination of data, advanced analytics, digital technology and industry expertise to help our clients turn data into insights, streamline operations, improve customer experience, and transform their business. Our partnerships with clients are built on a foundation of collaboration – and we’ve been chosen as a partner by nine of the top ten leading US insurance companies, nine of the top 20 global banks, and six of the top ten US health care payers. We function as one team to make your goals our goals, whether that’s unlocking the value of generative AI or embedding analytics into workflows that reduce risk or power your growth. Clients choose EXL as their transformation partner for many reasons. Our geographic diversity make talent all over the world instantly accessible. Digital accelerators enable unmatched speed-to-value, letting you realize results fast. It’s our people that truly set us apart, though, including the 1,500 data scientists we have dedicated to our generative AI practice. And our more than twenty years of experience in delivering business services, garnering stellar client references, and maintaining a solid balance sheet are reassuring to our C-suite clients. Find out for yourself why clients, employees, and analysts think we’re some of the best in the business. Contact us to see how we can help you achieve your goals.

Skills Required

  • 5+ years of experience in QA automation or SDET roles
  • Strong experience with API and service testing
  • Experience with automation frameworks
  • Strong understanding of test strategy and quality metrics
  • Good SQL and data validation skills
  • Professional English proficiency at B2+ or C1 level
  • Mainframe experience with COBOL, CICS, JCL, TSO, DB2, or similar technologies
  • Professional certification such as CA, CPA, CISA, or CIA
  • 7-9 years of relevant experience
  • Experience in regulated and mission-critical systems
  • Exposure to performance testing, contract testing, and test data management
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The Company
HQ: New York, NY
30,246 Employees
Year Founded: 1999

What We Do

Choosing a digital partner is about more than capabilities — it’s about collaboration and character. Unrealistic overhauls and off-the-shelf products ignore what matters most — your unique needs, culture, goals, and your legacy data and technology environments. At EXL, our collaboration is built on ongoing listening and learning to adapt our methodologies. We’re your business evolution partner—tailoring solutions that make the most of data to make better business decisions and drive more intelligence into your increasingly digital operations. Whether your goals are scaling the use of AI and digital, redesign operating models, or driving better and faster decisions, we’re here to partner with you to help you gain—and maintain—competitive advantage with efficient, sustainable models at scale. Our expertise in transformation, data science, and change management helps make your business more efficient and effective, improve customer relationships and enhance revenue growth. Instead of focusing on multi-year, resource- and time-intensive platform designs or migrations, we look deeper at your entire value chain to integrate strategies with impact. We use our specialization in analytics, digital interventions, and operations management—alongside deep industry expertise — to deliver solutions that help you outperform the competition. At EXL, it’s all about outcomes—your outcomes—and delivering success on your terms. Share your goals with us and together, we’ll optimize how you leverage data to drive your business forward. For more information, visit www.exlservice.com.

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