Your Job

Responsibilities

We are looking for a detail-oriented and highly skilled Data Quality Assurance Engineer to join our team. This role is crucial to ensuring the integrity, accuracy, and consistency of our data products. If you are passionate about data accuracy, enjoy finding edge cases, and have a strong grasp of automated testing in complex data environments, we’d love to hear from you.

• Test planning, design, execution, management, and bug reporting for our data and LLM pipelines
• Validate that our outputs align precisely with actual company and person metadata
• Design and implement automated data quality checks, including simulation of edge cases across ingestion, transformation, and output layers
• Design, implementation, and maintenance of various tests (API, E2E, regression)
• Improvement tasks related to the entire development process, assuming an Agile environment
• Improve data quality outputs for LLM-powered systems for hallucination mitigation

Requirements

• 2+ years of experience in development or QA at a business company
• Experience testing applications that use databases
• Knowledge and experience in software testing
• Knowledge of ETL pipelines
• Fluent to native Japanese and business level English

Nice to Have

• Experience in development or QA in LLM applications
• Knowledge of data governance and data integrity
• Experience in E2E test development using Playwright, Cypress, or Selenium
• Experience in setting up test environments and knowledge of CI/CD
• QA experience for services developed with microservices architecture
• Knowledge and experience in process improvement within projects
• QA experience in the sales industry or SaaS products

Our Tech Stack

[QA]

• Frameworks: Playwright, Jest
• Monitoring: Datadog
• Project management: Linear
• Test management: Qase
• API testing: Postman
• Others: Github, Github Action, Docker, Figma, UIBakery, Notion, Slack, Gather

Please note that these are only examples. You will select and implement technologies that best fit our product and team.

[Front-end]

• TypeScript, React
• Libraries: Storybook, Jest
• Hosting: Amplify

[Server Side/Back-End]

• Infrastructure: AWS, ElasticBeanstalk
• DB: Aurora, ElasticSearch, AWS RDS
• Languages: Go, Python, Typescript
• Analysis environment: Athena
• Framework: Express
• Monitoring: DataDog
• Others: AWS Lambda, AWS Batch, AWS API Gateway, AWS Glue

Why Us?

• One of the fastest growing SaaS startups in Japan with strong financial growth.
• Innovative new product development and opportunity to build things from scratch.
• Plenty of leadership and career development opportunities.
• Full remote-friendly & full flexible work schedules.
• Global team and English speaking environment.
• Great benefits & perks packages such as Resort Worx, Purchasing Books, Free Weekly Lunch, Offsites, etc.

Working Style

• Remote Work
  We’re remote friendly. We use Zoom and Meet, and recently introduced the virtual office platform Gather to maintain both the quality and quantity of communication while working remotely, ensuring smooth development and operations.

• Flexible Work
  You are free to customize your daily working hours. Taking into account the situation within the company and your team, you will manage your schedule and tasks within reasonable limits. Each employee adjusts their working hours to meet the monthly requirement of 8 hours per working day.

• Work-Life Balance
  We value a healthy work-life balance. Whether you want to focus heavily on work or prioritize your personal time, we believe this is an environment where both approaches can thrive.

Additional Information

• Position: Data Quality Assurance Engineer
• Employment Type: Full-time
• Salary: 5,600,000円 〜 9,600,000円
  The actual offer will be decided based on your experiences and skills.
• Probation Period: 6 months (same conditions during probationary period)

Note: Full remote work is allowed.