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 # and 2025)
• ISO 27001

At GRADION, we don't just hire great developers - we empower and support them to create impactful, high-quality experiences. If you're passionate about Shopify development, performance optimization, and delivering world-class eCommerce solutions, we'd love to meet you for the
Senior Fullstack Developer
position.

What You'll Do

• We are looking for a Senior Fullstack Developer to join our team and play a key role in building and optimizing high-performing e-commerce solutions for scaling businesses
• Frontend Development: Implement UI/UX improvements with a mobile-first approach (90% mobile traffic)
• Manage multi-currency & multi-language Shopify storefronts (Shopify Translate App, Localize)
• Develop new features to enhance store performance and user experience
• Optimize the subscription model UX (reduce clicks, improve conversion rates)
• Conduct A/B testing & tracking to refine user interactions
• Enhance the Shopify Admin interface for a smoother backend experience
• Backend Development: Maintain & update payment gateway integrations (Apple Pay, Google Pay, Credit Card, PayPal, Stripe, Klarna, etc.)
• Develop Klarna payment integration, including monitoring & logging error webhooks
• Maintain & improve Recharge subscription tracking, including API updates and webhook event logging
• Implement robust monitoring & error tracking for better system stability

What You'll Bring

• From 4 years of experience developing with Shopify or similar e-commerce platforms
• Strong proficiency in Liquid or similar template engine, HTML5, CSS3, SASS, JavaScript (React/Vue is a plus)
• Experience with backend development using Nodejs/Typescript
• Experience with A/B testing, tracking tools, and performance optimization
• Knowledge of multi-currency & multilingual setups for storefronts
• Familiarity with Git, CI/CD pipelines, and agile workflows
• Deep understanding of cross-browser/platform issues and code solutions
• Experience with Shopify Functions, Shopify APIs and Shopify Checkout UI Extensions is a big bonus

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 & Tech Leadership – At Gradion, you're not just coding or delivering features—you're shaping innovative solutions. Collaborate closely with tech leads, gain hands-on exposure to critical product and business decisions, and receive mentorship from experts who've built scalable systems. Whether you aim to become a technical expert or a leader, we'll empower your journey
• 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:
• 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)

According to Decree No.13/2023/ND-CP on protecting personal data ("PDP"), Gradion Vietnam applies the "Personal Data Processing Agreement" to all candidates to ensure compliance with the decree. By submitting your application to Gradion Vietnam, you agree to allow us to process your provided information in accordance with the Personal Data Processing Agreement that you have carefully read, understood, and agreed to in its entirety at Link.