Next.js Jobs in Japan.
All active Next.js roles based in Japan.
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About Vercel:
Vercel gives developers the tools and cloud infrastructure to build, scale, and secure a faster, more personalized web. As the team behind v0, Next.js, and AI SDK, Vercel helps customers like Ramp, Supreme, PayPal, and Under Armour build for the AI-native web.
Our mission is to enable the world to ship the best products. That starts with creating a place where everyone can do their best work. Whether you're building on our platform, supporting our customers, or shaping our story: You can just ship things.
Reporting to the Manager, Customer Support Engineering, you’ll resolve customer concerns, create and improve internal tooling, and engineer solutions that help Vercel customers get the most out of the platform. We’re seeking a deeply technical engineer with relevant support experience who can specialize in multiple core domains (Ecosystem, CDN) while partnering across teams to drive great outcomes. You’re an excellent communicator who earns customer trust, understands complex systems quickly, and enjoys digging deep to find and resolve root causes. You’re comfortable participating in an occasional weekend or holiday on-call rotation (scheduled in advance) as part of our global coverage model. This role is fully remote. For location-specific details, please connect with our recruiting team. Currently, we are looking for candidates who reside within Australia or Japan (English language proficiency required).
What You Will Do
- Solve interesting, technically complex cases for Vercel customers.
- Troubleshoot issues alongside Engineering; identify and drive fixes and mitigations.
- Partner with Product, Solutions, and Customer Success to provide guidance internally and externally.
- Develop and improve internal tools and scripts that increase team efficiency.
- Specialize in a few product areas (CDN, AI enablement) and act as a domain owner within the team.
- Improve existing documentation and create new runbooks, guides, and internal processes.
- Assist Customer Success Managers with Enterprise requests and escalations.
About You
• You lead by example and provide feedback to mentor other members of the team.
• You have hands-on experience using Vercel as a platform.
• You have modern development and architecture experience in the AI or web space (e.g., building LLM-powered apps, web services, or production web applications) and can explain these concepts to others.
• You have prior customer support experience in a technical role: troubleshooting customer cases, writing clear solutions, and proactively problem-solving.
• You enjoy engineering solutions to resolve root causes of recurring problems.
• You have strong written and verbal communication; able to explain complex systems clearly.
• You are comfortable working with a fully remote, globally distributed team.
• You have a passion for delivering a customer experience second to none.
• You are willing to participate in a weekend/holiday on-call rotation.
• Subject Matter Expertise in one or more of the following areas:
- Domains, DNS, and SSL/TLS lifecycle management
- Caching strategy and cache-invalidation patterns
- Cloud/edge networking fundamentals and routing rules/redirects
- Performance tuning, logs/analytics, and WAF/DDoS understanding
- SSO / SAML configuration and troubleshooting
- Experience supporting observability products
- Logging navigation and troubleshooting
- RBAC
Bonus If You:
- Have frontend development experience (e.g., React/Next.js).
- Enjoy technical writing for public docs or developer education.
- Have experience automating workflows with agentic services.
Ready to apply?
Apply to Vercel
Senior Frontend Engineer
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About the role
You will be a senior contributor to our frontend product experience, working across our product suite, including our self-custodial wallet interfaces, account abstraction user flows, and a growing set of web and mobile decentralized applications (dApps). As a senior frontend engineer on the team, you will help shape frontend architecture, deliver complex user-facing features, and embed performance, reliability, and usability best practices into every release.
You will work closely with designers, product managers, and engineers to take features from concept to production, while contributing to improving code quality, system design, and team workflows.
Key responsibilities
Frontend architecture & technical contributions: Contribute to the evolution of frontend system design, patterns, and best practices.
Application development: Design, build, and maintain complex, production-grade frontend applications using TypeScript and TanStack Start.
State management & data orchestration: Implement and maintain scalable client-side state using Zustand and TanStack Query to ensure predictable and performant data flows.
Project ownership: Own and deliver end-to-end frontend workstreams, including:
- Core wallet and account abstraction UX flows
- High-throughput, data-rich product interfaces
- New web and mobile dApp surfaces
Testing & reliability: Contribute to and maintain Playwright-based end-to-end test suites to improve coverage and release confidence.
Cross-functional collaboration: Partner with Product, Design, and Backend teams to refine requirements and deliver high-quality outcomes.
Qualifications
Required experience
- 2 ~ 4 years of experience as a frontend engineer
- Strong proficiency in TypeScript and modern JavaScript.
- Experience with TanStack Start or comparable meta-frameworks (e.g., Next.js, Remix).
- Solid expertise in modern React patterns, performance optimization, and frontend application design.
- Ability to operate independently in ambiguous, fast-paced environments.
- Excellent written and verbal communication skills.
Nice-to-have
- Experience leveraging AI-assisted coding tools (Cursor, Copilot, Claude, or similar) to accelerate development.
- Background in web3, blockchain, or decentralized application development.
- Experience in startup or scale-up environments.
Location and logistics
- East Asia preferred (Tokyo, Singapore, HongKong)
Ready to apply?
Apply to Startale Group