Palesa Nkambule

Results-driven QA Engineer with 3 years of experience in software quality assurance, manual testing, API validation, database testing, and end-to-end system testing across web and gaming platforms. Experienced in leading QA activities, executing regression testing, validating payment systems, promotions, sportsbook functionality, and cross-platform user journeys in Agile environments. Strong hands-on experience in REST API testing using Postman, SQL database validation, defect management, and quality assurance processes across fast-paced environments where requirements evolve rapidly.

Proven ability to identify critical defects, improve release quality, and collaborate with developers, business teams, and product stakeholders to ensure successful deployments. Experienced in manual, functional, exploratory, UI/UX, system integration, and regression testing, with growing exposure to automation and AI-assisted quality evaluation.

Product Tester / QA Engineer - Sunbet

(2024-05)

Client Project

• Lead quality assurance activities for web and gaming platforms, ensuring stable and high-quality releases across sportsbook, casino, promotions, and payment functionality.
• Execute end-to-end testing across critical user journeys, including account registration, login, deposits, withdrawals, promotions, and gameplay validation.
• Design, execute, and maintain test cases, test scenarios, and regression test suites aligned with evolving business requirements.
• Perform REST API testing using Postman to validate backend integrations, service responses, and system communication.
• Conduct SQL database validation to ensure backend data accuracy and integrity across systems.
• Perform UI/UX, usability, and cross-device testing across desktop, Android, and iOS platforms.
• Execute System Integration Testing (SIT) across multiple backend services and platform components.
• Identify, document, reproduce, and track defects using Azure DevOps and Jira, ensuring efficient issue resolution.
• Support UAT, regression cycles, and production releases to ensure release readiness and platform stability.
• Collaborate closely with developers, business teams, and product stakeholders in Agile sprint environments.

Intermediate Software Developer - Mphoti Consulting

(2023-07)

• Develop and maintain RESTful APIs using Node.js to support web applications and business integrations.
• Support end-to-end testing across UI, API, and database layers to validate complete system functionality.
• Participate in Agile development cycles, including sprint planning, backlog refinement, standups, and retrospectives.
• Perform application debugging, issue validation, and system verification to ensure platform reliability.
• Assist with database integration and backend data validation between systems.
• Collaborate with QA teams to support release readiness and product quality assurance.
• Manage sprint tasks, bugs, and user stories using Azure DevOps.
• Support environment setup and deployment processes, including AWS EC2 configurations.

AI Quality Evaluator / Freelance QA Tester - Outlier.ai

(2024-01)

• Evaluate AI-generated responses for accuracy, relevance, quality, and consistency.
• Identify incorrect outputs, inconsistencies, and edge cases to improve AI system reliability.
• Compare multiple model outputs and assess response effectiveness.
• Perform prompt analysis, data review, and quality classification tasks based on defined guidelines.
• Provide structured feedback to improve AI model quality and response performance.
• Document evaluation findings to support continuous quality improvement.

AEM Developer Intern - Mphoti Consulting

(2023-02 - 2023-06)

• Assisted with manual testing and system validation of Adobe Experience Manager (AEM) applications.
• Supported integration and regression testing for Java-based Learning Management Systems (LMS).
• Verified website functionality, UI components, and content rendering across environments.
• Logged and tracked defects, ensuring issues were communicated effectively to development teams.
• Participated in bug verification and regression testing before production releases.

National Diploma - Information Technology (Business Applications) - Tshwane University of Technology (2019-01 - 2021-12)