Backend Engineer

• Own end-to-end data extraction workflows across complex websites, ensuring complete coverage, accuracy, and reliable delivery of structured datasets
• Leverage available tools and custom workflows to accelerate data collection, validation, and task execution while meeting defined requirements
• Ensure reliable extraction from dynamic and interactive web sources, adapting approaches to JavaScript-rendered content and changing site behavior
• Enforce data quality standards through validation checks, cross-source consistency controls, formatting specifications, and systematic verification before delivery
• Scale scraping operations for large datasets using efficient batching or parallelization
• Monitor failures and maintain stability against minor site structure changes
• Apply web scraping, data extraction, and data processing expertise to the Tendem project
• Use tools such as Apify, OpenRouter, and other technologies to complete scraping and processing tasks

Senior Python Data Scraping Engineer – Freelance

• Own end-to-end data extraction workflows across complex websites, ensuring complete coverage, accuracy, and reliable delivery of structured datasets
• Leverage tools and custom workflows to accelerate data collection, validation, and task execution while meeting defined requirements
• Ensure reliable extraction from dynamic and interactive web sources, adapting approaches for JavaScript-rendered content and changing site behavior
• Enforce data quality standards through validation checks, cross-source consistency controls, formatting specifications, and systematic verification before delivery
• Scale scraping operations for large datasets using efficient batching or parallelization, monitor failures, and maintain stability against minor site structure changes
• Apply expertise in web scraping, data extraction, and data processing for the Tendem project
• Utilize Apify, OpenRouter, and other technologies alongside technical expertise and custom approaches

Senior Python Data Scraping Engineer

• Design realistic and challenging coding tasks involving feature implementation and bug fixes.
• Create tasks that reflect authentic backend engineering workflows and practical software development challenges.
• Develop deterministic verifiers that accept reasonable valid solutions and reject incorrect implementations.
• Build and validate solutions using backend programming languages such as Java, Node.js, Go, Rust, TypeScript, Python, or C++.
• Develop tasks involving scalable services, APIs, debugging, performance optimization, and automated testing.
• Review code quality, maintainability, correctness, and adherence to technical requirements.
• Design evaluation criteria that distinguish robust solutions from superficially plausible implementations.
• Incorporate security considerations into tasks and verifiers where applicable.
• Document assumptions, expected behavior, edge cases, and validation requirements.
• Apply independent technical judgment throughout the task development and review process.

Backend Engineer jobs in Japan

Senior Python Data Scraping Engineer – Freelance

Senior Python Data Scraping Engineer

Software Engineer – Backend, AI Code Evaluation