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API Automation Tester

Papigen
Full-time
Remote
Worldwide
Automation Tester, SDET

About the job

Role Overview We are seeking an experienced AI Quality Engineer to own and drive end-to-end quality strategy for API and AI/ML platforms. This role focuses on building scalable automation frameworks, CI/CD-integrated validation pipelines, and robust AI testing standards to ensure accuracy, fairness, performance, and production reliability across services.

Key Responsibilities

  • Own the end-to-end testing strategy for API and AI/ML capabilities across multiple squads, working closely with QA Leads, Tech Leads, and Engineering teams.
  • Design, build, and maintain scalable automated test suites for APIs, covering functional, integration, regression, performance, and security testing, fully integrated into CI/CD pipelines with defined quality gates.
  • Establish and manage baseline evaluation datasets, golden tests, and acceptance thresholds for pre-deployment and post-deployment validation of APIs and AI models.
  • Define and execute AI/ML testing strategies, including model validation, output quality assessment, bias and fairness checks, drift detection, edge-case testing, and continuous model monitoring.
  • Ensure CI/CT pipeline reliability through proactive monitoring, alerting, rapid triage, root cause analysis, environment/data management, and performance optimization.
  • Expand and standardize validation frameworks and test coverage across API and AI services, ensuring consistency across environments and compliance with engineering and governance standards.
  • Drive shift-left testing by collaborating during solution design, sprint execution, and code reviews.
  • Report on test health, risks, and quality metrics, contributing to governance forums and providing visibility into release readiness and quality trends.

Required Skills & Experience

  • Bachelor’s degree in Computer Science or equivalent practical experience.
  • 5+ years of hands-on experience in API test automation, including functional, integration, performance, and security testing, with strong CI/CD integration.
  • Proficiency with modern test automation frameworks and tools for API testing, performance testing, and CI/CD orchestration.
  • Strong understanding of AI/ML quality validation concepts, including model evaluation, fairness, drift, and monitoring (hands-on experience preferred).
  • Excellent cross-team collaboration and communication skills, with the ability to influence testing strategy and support multiple squads.
  • Strong documentation, debugging, and problem-solving skills, with a proven record of improving test reliability and engineering quality maturity.

Nice to Have

  • Experience testing LLMs, ML inference APIs, or data-driven platforms
  • Exposure to cloud-native CI/CD pipelines and distributed systems
  • Familiarity with governance, compliance, or enterprise QA standards