Job Description

Ref No: 06940-0013287783

Location: Tokyo (Remote OK within Japan)

Salary: ¥11,856,000

What You'll Be Working On

A social application with over 400,000 users (as of September 2024), focused on supporting a specific adult demographic. Built with modern AI technology and an intuitive UI/UX, the platform sees 1 match every 4 seconds and 1,000 new signups daily. It offers users a private and secure space to express concerns beyond their personal and professional environments.

As a Full-Stack Web Developer, you will be responsible for designing, developing, and maintaining both new and existing features. You will collaborate with customer support and design teams to improve user experience. Strong skills in both frontend and backend development and familiarity with modern web technologies are required.

Technology Stack

Languages & Frameworks

• TypeScript, JavaScript, Python, Node.js

• React

• DynamoDB

• Git (Version Control)

• GitHub (Project Management)

• Slack (Communication)

• Jest, Amplify, GraphQL, AWS (ALB, EC2, Cognito, Lambda, S3), SCSS, SQL

Development Environment & Culture

Team & Organization

• Team size: Fewer than 10 engineers

• Engineers participate in performance reviews

• Monthly career check-ins with managers or CTO

• Engineers earning ¥8M+ annually without management duties

Technical Culture

• Engineers involved in executive decision-making

• Engineering leadership with technical backgrounds

• English communication opportunities available

Developer Autonomy

• End-to-end responsibility: design, build, operate

• Engineers drive technical debt and tool improvements

• Freedom to choose OS, editor, IDE

• Engineers estimate their own tasks

• Iterative development with flexible schedule

• Tech stack kept up-to-date (within 1 year of latest versions)

Quality Assurance

• Mandatory code reviews or pair programming

• Shared coding standards across team

• Multi-environment quality testing

• Continuous deployment/delivery

• Pull request-based workflows with full version control

Scale & Performance

• Concurrent users: thousands+

• DB tables: tens of millions of records

• High traffic: thousands of RPS+

Work Environment

• Full remote work within Japan

• Mid-day break system

• Family-friendly: team includes engineers with preschool-age children

• Flextime or discretionary work system

Benefits & Support

• Conference participation supported (tickets + business trips)

• Preferred-spec PC and displays provided

• Open to new graduate developers

Required Experience

Must-Have

• Performance optimization

• Remote work experience

• Feature enhancements and additions

• Release and deployment operations

• New feature development

Nice-to-Have

• Bug identification and reporting

• Refactoring experience

• Experience with large-scale traffic systems

• Load balancing and scalability planning

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