Senior Frontend Engineer - SaaS Platform (Enterprise SFA/CRM)
Employment Type:
Full-time
Location:
Tokyo (Hybrid - 3 days in office, 2 remote)
Salary:
¥8M-¥15M / year + stock options
About The Company
A fast-growing Japanese technology company specializing in marketing SaaS, ad-tech, and AI-powered solutions.
Recognized among Asia-Pacific's high-growth tech firms, this organization builds digital platforms that optimize sales efficiency, customer engagement, and marketing performance for enterprise clients.
Role SummaryWe are seeking a Senior Frontend Engineer to take ownership of our next-generation SaaS sales and CRM platform. You'll lead frontend architecture, enhance performance and UI design, and mentor a growing team of talented developers.
This is a hands-on technical leadership position-ideal for someone who wants to shape architecture and establish coding standards in a scaling environment.
Architect and implement scalable frontend solutions using React and TypeScript
Lead UI/UX engineering and contribute to design systems for enterprise SaaS applications
Review code, establish best practices, and mentor team members
Collaborate with backend, design, and product teams on feature delivery
Enhance frontend performance, accessibility, and maintainability
Drive technical innovation through modern frameworks and tools
Tech Environment
Frontend:
React, TypeScript, OpenAPI
Backend:
Python
Cloud:
AWS, GCP
CI/CD:
GitHub Actions, CircleCI, Jenkins
Architecture:
DDD
Tools:
Jira, Confluence, Slack, GitHub
Qualifications
Required:
4+ years of professional frontend development experience
Deep expertise in React and TypeScript
Experience building or scaling SaaS products
Technical leadership or mentorship experience
Familiarity with AWS or GCP infrastructure
Preferred
Automated testing experience
Knowledge of scalable frontend design and architecture principles
Why You'll Love It
Define frontend architecture and standards from the ground up
Work on high-scale enterprise-grade SaaS systems
Mentor a motivated team of engineers
Leverage AI tools and modern cloud technologies
Hybrid work, learning support, and competitive total rewards
Selection Process
Resume → Coding Test → Interviews → Final Interview
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