Test Engineer - Software (AI)

For Singapore Applicants Only: PC Partner Technology Pte Limited will be prioritising applicants who have a current right to work in Singapore, and do not require PC Partner Technology Pte Limited's sponsorship of a visa.

Position Summary

We are looking for a Test Engineer - Software (AI) who will be responsible for ensuring the quality, reliability and performance of AI-driven software systems through structured test planning, execution and automation. This role works closely with cross-functional teams to validate AI system designs, identify issues early, improve testing efficiency and ensure AI-driven solutions meet project goals through effective technical execution and communication.

Key Responsibilities

• Design and maintain effective test plans and test cases based on product requirements and system architecture
• Identify critical test scenarios, edge cases and failure modes across functional, integration and performance layers
• Contribute to risk-based testing strategies to ensure optimal test coverage

• Work closely with developers to understand code design and contribute to unit and white-box testing
• Support developers in improving testability, code coverage and test design
• Review code and test implementations to ensure quality and maintainability

• Execute end-to-end testing across APIs, application workflows and embedded systems
• Validate system performance, stability and reliability under different usage scenarios
• Investigate, reproduce and track defects; partner with engineers to drive timely resolution

• Design test inputs, prompts and datasets to evaluate AI system behaviour.
• Validate the outputs for accuracy, consistency and robustness using defined evaluation criteria.
• Perform regression and scenario-based testing to ensure stable model performance across releases.

• Develop and maintain automated test suites for regression and feature validation.
• Contribute to automation frameworks and integrate tests into CI/CD pipelines for continuous validation.
• Build tools or scripts to improve testing efficiency, repeatability and coverage.

• Work closely with software and AI engineers to understand system design and provide early quality feedback.
• Contribute to improving test frameworks, coding standards and engineering best practices.
• Produce clear test reports, metrics and insights to support release decisions.

• Min. Degree in Computer Engineering, Computer Science or a related software engineering field.
• Min. of 2 years of relevant experience in a similar role, with proven hands-on experience in planning, designing and conducting software testing on AI related products.
• Strong understanding of unit testing, white-box testing and code-level validation.
• Proficiency in programming (e.g, Python) with experience writing testable and maintainable code.
• Hands-on experience with test automation frameworks (e.g, Pytest, Selenium or similar).
• Experience testing APIs and backend systems.
• Familiarity with CI/CD pipelines and version control (e.g, Git).
• Basic understanding of AI/ML systems or strong interest in AI testing.
• Strong debugging, analytical thinking and attention to detail.
• Excellent written and spoken English communication skills, fluency in Chinese is a plus for effective interaction with Chinese-speaking stakeholders.
• Candidates must meet legal requirements to work in Singapore without sponsorship.