Senior Next.js Frontend Engineer (Vercel)
💼 Employment Type: Full-time (Remote)
💰 Salary: Based on experience + performance-based bonuses
🗓️ Start Date: ASAP
🖥️ Department: Software Development / Engineering
About Us
At travSIM, we help travellers stay connected worldwide through a wide range of SIM and eSIM solutions. We’re expanding fast and are now looking for a skilled Next.js Frontend Engineer to join our engineering team. You’ll be responsible for delivering a high-performing e-commerce website with Stripe integration, built on Next.js and deployed on Vercel.
Our backend engineers own the NestJS backend — your focus will be building a clean, scalable, and performant frontend integrated with Payload CMS and external APIs.
Read Before Applying
🚫 Do Not Apply If:
• You do not have proven, hands-on experience with Next.js (App Router & RSC) and Vercel deployments.
• You have not worked on frontend payment flows using Stripe in production.
• You cannot demonstrate practical experience with Payload CMS.
• You are not comfortable working in a fast-paced, collaborative environment.
What You’ll Be Doing
You will take full ownership of the frontend delivery for a global e-commerce platform, working closely with backend engineers and product teams to ensure seamless API and CMS integration.
Core Responsibilities
• Develop, test, and maintain a Next.js + Vercel e-commerce frontend.
• Integrate Stripe payments (Payment Element, Checkout, Apple Pay, Google Pay, 3DS flows).
• Implement Payload CMS integration, including live previews, block-based content, and revalidation triggers.
• Ensure high performance and SEO (Core Web Vitals, structured data, i18n routing).
• Build responsive and accessible UI with Tailwind CSS following WCAG 2.1 fundamentals.
• Implement robust API integration and data caching (SWR / React Query).
• Handle forms and validation with React Hook Form + Zod/Yup.
• Write and maintain unit, e2e, and performance tests (Jest/RTL, Playwright, Lighthouse CI).
• Monitor and improve quality (Sentry, GA4, A/B testing, feature flags).
• Apply modern security and best practices (XSS/CSRF mitigation, secure headers, secrets management).
Required Skills & Experience
• Strong hands-on experience with Next.js (App Router & RSC).
• Practical knowledge of Vercel deployments & environments.
• Proficiency in React + TypeScript with modern hooks and state management.
• Experience integrating Stripe frontend payment flows.
• Proven work with Payload CMS and content-driven routing.
• Strong grounding in performance, SEO, and accessibility fundamentals.
• Experience writing and maintaining unit/e2e tests.
• Solid understanding of frontend security practices.
Nice-to-Have (Bonus Skills)
• Familiarity with Prisma/Postgres concepts and Redis caching.
• Experience with large-scale i18n and localisation.
• Exposure to growth and analytics tools (PostHog, GTM server-side, affiliate tracking).
• Knowledge of customer tooling integrations (Crisp/Intercom).
Why Join Us
• Build high-performance web platforms with direct impact on global travellers.
• Collaborate with an international team of engineers and product experts.
• Opportunity to work on cutting-edge frontend tech (Next.js + Vercel).
If you’re ready to deliver world-class frontend experiences, we’d love to hear from you!
Please send your resume to yang@travsim.com.