Lead Mainframe QA – Core Banking Transformation (Remote)

Slalom; Jacksonville (FL); Remote; USD 76,000 - 90,000; Full time

Job summary

Slalom is seeking an experienced Mainframe QA Lead to support a large-scale Core Banking Modernization and Core Deposit Replacement program. You will lead manual testing across critical banking applications and coordinate with cross-functional teams to ensure quality and reliability.

The role is remote with EST hours and a project-based contract through mid-2027, offering visibility into a major enterprise transformation and opportunities to influence testing strategy, data validation, and

Qualifications

• 7+ years of QA experience in large enterprise programs.
• Proven leadership of manual testing teams.
• Strong mainframe testing and data validation skills.
• Experience with Tosca and qTest.
• Excellent defect management and root-cause analysis.

Responsibilities

• Lead manual testing for a core banking transformation workstream.
• Execute test cases across mainframe and integrated banking applications.
• Create and maintain test scripts and execution documentation.
• Validate end-to-end account lifecycle and servicing processes.
• Perform data reconciliation and validation across systems.
• Identify, document, and track defects through resolution.
• Collaborate with stakeholders, product owners, developers, and QA teams.
• Support test planning, defect triage, and release readiness.
• Utilize test management and execution tools to manage testing activities.

Skills

Mainframe testing

Manual testing

Test scripting

Data validation

Defect management

Agile

Stakeholder communication

Tools

Tricentis Tosca

qTest

Job description

Slalom is seeking an experienced Mainframe QA Lead to support a large-scale Core Banking Modernization and Core Deposit Replacement program. You will lead manual testing across critical banking applications and coordinate with cross-functional teams to ensure quality and reliability.

The role is remote with EST hours and a project-based contract through mid-2027, offering visibility into a major enterprise transformation and opportunities to influence testing strategy, data validation, and