Senior Card Payments Performance Test Analyst (Hybrid)

Whizdom; Sydney; Hybrid; AUD 100,000 - 160,000; Part time

Job summary

Whizdom in Sydney is seeking a Senior Performance Test Analyst on a hybrid, contract basis to ensure scalable, reliable card payment and financial transaction systems. You will design and execute performance tests, analyse results, and collaborate with development and business teams to identify bottlenecks and deliver actionable recommendations aligned with regulatory and quality standards.

The role requires strong SQL validation, API testing, and experience with LoadRunner or similar tools in a

Qualifications

• Strong understanding of the card payments domain.
• Knowledge of the payment transaction lifecycle.
• Experience testing applications involving payment processing or financial transaction systems.
• Strong understanding of financial transactions and transaction processing.
• Ability to interpret and validate financial message structures.
• Experience validating message content, transaction status, and end‑to‑end processing outcomes.
• Hands‑on experience testing APIs and distributed systems.
• Strong SQL skills and experience performing database and backend validations.
• Experience developing and executing detailed test cases and test scenarios.
• Understanding of integration, system, regression, and end‑to‑end testing.
• Strong analytical and problem‑solving skills.
• Ability to investigate defects across multiple applications and integrated systems.
• Clear written and verbal communication skills.
• Experience working collaboratively within multidisciplinary delivery teams.

Responsibilities

• Plan, design, and execute testing across card payment and financial transaction systems.
• Validate end‑to‑end payment transaction flows across integrated applications.
• Interpret and validate financial messages throughout the transaction lifecycle.
• Confirm that financial transactions are processed accurately across applications and downstream systems.
• Test APIs and integrations within distributed system environments.
• Perform SQL queries and database validations to confirm transaction accuracy and data integrity.
• Develop and maintain functional, integration, system, regression, and performance test scenarios.
• Execute performance tests using LoadRunner or equivalent performance testing tools.
• Monitor test execution and analyse performance results, response times, throughput, and system behaviour.
• Identify performance trends, constraints, bottlenecks, and potential system issues.
• Prepare performance test reports documenting results, observations, risks, and recommendations.
• Record, manage, and retest defects through to resolution.
• Work closely with developers, business analysts, product teams, and other technical stakeholders.
• Contribute to test planning, test estimation, risk management, and quality assurance activities.
• Ensure testing aligns with project requirements, quality standards, and delivery timelines.

Skills

Card payments domain

Payment lifecycle

APIs testing

SQL

Performance testing

LoadRunner

Distributed systems

Test planning

Communication

Defect management

Tools

LoadRunner

Job description

Whizdom in Sydney is seeking a Senior Performance Test Analyst on a hybrid, contract basis to ensure scalable, reliable card payment and financial transaction systems. You will design and execute performance tests, analyse results, and collaborate with development and business teams to identify bottlenecks and deliver actionable recommendations aligned with regulatory and quality standards.

The role requires strong SQL validation, API testing, and experience with LoadRunner or similar tools in a