Senior QA Engineer, Cross River

• 5+ years in software engineering with a strong focus on quality and testing (equivalence partitioning, boundary analysis, risk-based prioritization)
• Proficiency in Go (or strong willingness to learn — test-design thinking matters morethan language syntax)
• Demonstrated AI fluency — you use AI assistants daily, you know when they're wrong, and you know when NOT to use them
• Experience testing RESTful APIs and event-driven systems
• Familiarity with CI/CD pipelines, containerisation, and infrastructure-as-code
• Strong analytical thinking — you pull bugs back to the spec, not just the code
• Comfort with regulated environments — you think in terms of audit trails, blast radius, and data classification
• Strong proficiency in English — written and verbal
• Excellent communication skills — this role enables and mentors, not just audits. You need to teach, not agitate

Desirable

• We are seeking a Senior QA Engineer to join our Card Processing team
• You will design and build the quality systems that keep our payment platform reliable at scale — in an environment where new code is produced using AI tooling and judgment is the bottleneck, not generation speed
• This is not a traditional "write and execute test cases" role
• We believe software engineers own their tests — your job is to make them better at it
• You will own the sensor strategy that catches what AI gets wrong, verify that test intent matches business requirements, and raise the quality bar for the entire team
• Design and implement layered quality sensors across our CI/CD pipeline — from static analysis to AI-driven code review passes
• Improve and maintain E2E test suites for critical payment flows (card authorisation, clearing and settlement, tokenisation, 3D Secure)
• Review PRs for test intent alignment — ensuring AI-authored and human-authored code meets the same quality bar
• Identify test coverage gaps and prioritise them by risk (customer impact, regulatory exposure)
• Build load testing and performance validation frameworks
• Collaborate with the team on quality strategy — you raise the bar, you don't gatekeep it
• Explore chaos engineering approaches to validate system resilience
• Contribute to audit-trail thinking — ensuring generated diffs and suppressed checks are traceable and defensible