Senior Fullstack Developer

About us

At Gradion, we are the strategic partner for ambitious businesses, helping them achieve breakthrough growth through Digital Innovation and Deep Tech.

With a global vision and an AI-first approach, we enable clients to reshape strategies, optimize systems, and adopt cutting-edge technologies to create sustainable value.

From AI and data to cybersecurity, robotics, and large-scale enterprise platforms, Gradion designs practical solutions that lay the foundation for the next generation of billion-dollar companies.

Our facts & figures

• 23+ years of expertise — Gradion builds digital platforms & deep-tech solutions.
• 3 continents: Asia, Europe and Africa.
• 300+ specialists across 7 countries: Vietnam, Singapore, Thailand, Saudi Arabia, Germany, Egypt, Indonesia.
• 100+ enterprise clients, including several unicorns (e.g., Alaiko, HomeToGo, Roadsurfer).
• Vietnam’s Best IT Company - recognized by ITViec for 7 consecutive years, including 2 consecutive years of ranking #1 (2024 and 2025).
• ISO 27001.

We're looking for a Senior Fullstack Engineer to join our team and take ownership of building, optimizing, and scaling high-performing e-commerce experiences. You'll work across the full stack - from Shopify storefront UX to backend integrations and payment systems - with a direct impact on conversion, reliability, and global reach.

In this role, you will

• Build and improve UI/UX across Shopify storefronts with a mobile-first approach, serving over 90% mobile traffic
• Manage and scale multi-currency and multi-language storefront setups
• Develop new features that improve store performance, subscription UX, and overall conversion rates
• Run A/B tests and implement tracking to continuously refine user interactions
• Maintain and extend payment gateway integrations (Apple Pay, Google Pay, PayPal, Stripe, Klarna, and more)
• Own backend reliability through robust monitoring, error tracking, and webhook event logging
• Enhance internal Shopify Admin tooling for a smoother operational experience

What you will bring

• 5+ years of experience in software development, with strong hands-on skills in TypeScript, Node.js, React or Vue.js, plus familiarity with Liquid or similar templating engines, and working exposure to AWS
• Strong fundamentals in how modern web applications work: browser rendering, frontend/backend communication, and delivering fast, smooth customer experiences - especially in a global e-commerce context
• Experience with A/B testing, analytics/tracking tools, and frontend performance optimization
• Knowledge of multi-currency and multilingual storefront setups
• Familiarity with Git, CI/CD pipelines, and agile workflows
• Deep understanding of cross-browser and cross-platform issues, with practical solutions
• Very good English, both written and spoken
• You actively engage in team ceremonies and contribute confidently to technical discussions
• Nice-to-Have Experience with Shopify Functions, Shopify APIs, or Shopify Checkout UI Extensions

Why you'll love working here

• 🏆 Join Vietnam’s Best IT Company – Gradion Vietnam (formerly NFQ Vietnam) was recognized by ITViec for 7 consecutive years, including 2 successive years as the Winner. Work with some of the best minds in the industry and be part of a company that’s redefining how businesses scale through technology.
• 🌍 Career Growth & Leadership Development – Work closely with our leadership team, gain mentorship from experienced executives, and have direct exposure to high-level strategic decisions. Your growth is limitless, as long as you’re ready to step up, opportunities will always be there for you.
• 💰 Competitive Compensation – We believe great talent deserves great rewards. Expect an attractive salary, performance-based bonuses, and a benefits package that reflects your impact. We value talent over salary budgets - exceptional contributions deserve exceptional rewards.
• ✨ And Many More Benefits to Explore! But most importantly, a healthy work-life balance and an environment where you can thrive professionally and personally. Including:
• A laptop is provided.
• Community Tech activities.
• A fun & dynamic environment and freedom to be creative.
• Modern office with a flexible, relaxing zone.
• Performance bonus (up to 2-month salary).
• Performance review 2 times/ year.
• Extra Premium Healthcare & Annual Health-check.
• 15 days of annual leave.
• Working time: Monday – Friday (9 AM - 6 PM)
• Location: Ho Chi Minh office: Podium Floor, Sapphire 2 tower, 92 Nguyen Huu Canh Street, Thanh My Tay Ward, Ho Chi Minh City, Vietnam.

According to General Data Protection Regulation (GDPR), Singapore's Personal Data Protection Act (PDPA) and Vietnam's Personal Data Protection Law No. 91/2025/QH15, while also ensuring compliance with other applicable local data protection laws in the jurisdictions where we operate, including but not limited to Vietnam, Indonesia, Thailand, Egypt, Singapore, Germany, and Saudi Arabia, Gradion applies the “Personal Data Protection Policy” to all candidates to ensure compliance with the laws.

By submitting your application to Gradion, you acknowledge that you have read and understood our Recruitment Privacy Policy (linked) and consent to the collection, processing, and retention of your personal data in accordance with the purposes and conditions set out under the Personal Data Protection Law No. 91/2025/QH15 and the Policy.