Senior Fullstack Developer (NodeJS, TypeScript)

Top 3 reasons to join us

• Salary, bonus & benefits that reward your impact
• Work with big-name global clients
• AI-first: Work with AI at the core

Job description

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 6 countries Vietnam, Singapore, Thailand, Saudi Arabia, Germany and Egypt.

- 100+ enterprise clients, including several unicorns (e.g., Alaiko, HomeToGo, Roadsurfer).

- Vietnam’s Best IT Company – recognized by ITViec for 8 consecutive years, including 2 consecutive years of ranking #1 (2024 and 2025).

- ISO 27001.

We're looking for a Senior Fullstack Developer to join our team and take ownership of building, optimizing, and scaling high-performing e-commerce experiences. You'll work across the fullstack - 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

Your skills and experience

• 8+ years of software development experience, with strong hands-on TypeScript and Node.js
• Deep JavaScript fundamentals - async execution order, what your framework actually does under the hood.
• Strong general fundamentals of modern web applications - how apps render in the browser, rendering strategies, how to make the customer experience smooth and fast, and how frontend, backend, and multiple systems communicate — especially in a global e-commerce context
• Production experience in React or Vue (and Next.js or Nuxt) - depth in one matters more than shallow exposure to both; you should be able to explain what your framework does under the hood
• Familiarity with AWS - you can reason about how an application is deployed and served (compute, CDN, storage, secrets); experience on another cloud and mapping the concepts across is just as good
• Daily, hands-on use of Git, CI/CD pipelines, and agile workflows.
• Be the driver, not a passive coder - you propose solutions, sketch the architecture, and challenge requirements that don't make sense.
• Strong written and spoken English - the role involves daily collaboration with international stakeholders; clear, structured, to-the-point communication in technical discussions and async writing
• Active engagement in team ceremonies and confident contribution to technical discussions
• Willingness and ability to learn the Shopify ecosystem - you don't need Shopify experience on day one, but you must be genuinely curious and motivated to build it

Nice-to-Have

• Shopify Functions, Shopify APIs, or Checkout UI Extensions experience
• End-to-end testing exposure (Playwright, Cypress)
• A/B testing and analytics/tracking tools
• Multi-currency / multilingual storefront setups
• Payment gateway integration experience
• Deep cross-browser and cross-platform troubleshooting

Why you'll love working here

Why you’ll love working here:

🏆 Join Vietnam’s Best IT Company - Gradion Vietnam (formerly NFQ Vietnam) was recognized by ITViec for 8 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.

🚀 AI-First Engineering & Strategic Consulting - Our engineering culture integrates AI as a core driver of design, development, and optimization - not an add-on. As a forward-thinking consultancy, we go beyond traditional engineering, combining technical excellence with a strategic mindset to deliver transformative solutions for ambitious businesses.

💰 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:

• Performance bonus of up to 2 months’ salary.
• Performance review twice a year, so your growth is recognized and rewarded.
• Premium healthcare for you, plus an annual health check.
• 15 days of annual leave.
• Full salary during probation.
• Hybrid working for real flexibility.
• Monthly Happy Hour and Community Tech activities.
• Work on global projects as part of an innovation team that shapes ideas for the hi-tech world.
• Diverse training programs to keep you growing.

Working time: Monday – Friday (9 AM – 6 PM)