
QA - Data Validation & API Testing - Contractor
- Toronto, ON
- Contrat
- Temps-plein
- Leading comprehensive API testing for RESTful services, data endpoints, and integration points across the health assessment platform
- Validating complex data processing workflows including PDF ingestion, document parsing, and structured data extraction
- Testing database integrity, data correlation accuracy, and user attribution throughout multi-step data processing pipelines
- Performing thorough validation of AI scoring algorithms, recommendation engines, and data-driven analysis outputs
- Testing data synchronization between multiple systems including databases, document processing services, and AI platforms
- Validating data accuracy and integrity across ETL processes, data transformations, and workflow orchestration systems
- Conducting comprehensive testing of real-time data processing, async workflows, and background job processing
- Testing error handling, retry logic, and data recovery scenarios for failed processing workflows
- Validating user session data persistence, test completion tracking, and status monitoring accuracy
- Performing security testing for sensitive health data handling, encryption, and access control mechanisms
- Testing data export/import functionality, backup systems, and data migration processes
- Collaborating with backend developers and data engineers to identify and resolve data processing issues
- Creating and maintaining comprehensive API testing suites, data validation scripts, and automated testing frameworks
- At least 4+ years of experience in QA testing with strong emphasis on backend systems, data validation, and API testing
- Proven experience testing complex data processing pipelines, ETL workflows, and database systems
- Strong background in comprehensive API testing including REST endpoints, authentication, and data validation
- Experience testing AI/ML systems, algorithm outputs, and data-driven recommendation engines
- Experience with healthcare, fitness, or data-sensitive applications requiring rigorous data accuracy and compliance testing (nice to have)
- Demonstrated expertise in database testing, data integrity validation, and multi-system data correlation
- Strong understanding of document processing testing, file handling, and automated data extraction validation
- Experience testing real-time data processing, async workflows, and background job systems
- Proven ability to work in fast-paced, deadline-driven environments with complex data testing scenarios
- Experience using AI-powered testing tools and automated data validation frameworks for accelerated QA workflows
- API Testing: Postman, Insomnia, REST Assured, comprehensive API testing frameworks and automation
- Database Testing: SQL validation, data integrity testing, database performance testing, query optimization validation
- Data Processing: ETL testing tools, data pipeline validation, workflow orchestration testing
- Document Testing: PDF processing validation, OCR accuracy testing, document parsing verification
- AI/ML Testing: Algorithm output validation, model performance testing, recommendation accuracy verification
- Backend Testing: Microservices testing, async processing validation, background job monitoring
- Security Testing: Data encryption validation, access control testing, compliance verification tools
- Automation: Python/JavaScript testing frameworks, automated data validation scripts, CI/CD testing integration
- Monitoring: Log analysis, error tracking, data quality monitoring and alerting systems
- Experience with healthcare data compliance testing (HIPAA, GDPR) and privacy regulation validation preferred
- Background in performance testing for data-intensive applications and high-volume processing systems
- Experience with cloud platform testing (AWS, Azure) including database services and serverless functions
- Understanding of data warehouse testing, analytics validation, and reporting accuracy verification
- Experience with load testing for API endpoints and data processing systems under high concurrency
- Familiarity with data science workflows and statistical analysis validation
- You are a detail-oriented data quality advocate with strong analytical skills and systematic approach to testing complex data workflows.
- You have excellent problem-solving abilities, understand the importance of data accuracy in healthcare applications, and thrive in collaborative technical environments.
- Challenging and rewarding work with real impact
- Direct Access to Cutting-Edge AI Platforms
- Diverse and Inclusive Culture
- Growth opportunities for personal and professional development
- A collaborative and innovative work environment where your ideas are valued
- Exposure to exciting projects and high-profile clients
- Supportive work environment with access to company leaders
- Hybrid working model