Senior Fullstack Developer (English, Hybrid)

Top 3 reasons to join us

• We truly value your thoughts and opinions
• Global and professional
• Hybrid working, flexible time

Job description

At Gradion, we consult businesses with Digital and Deep Tech.

With over 23 years of experience and a global team of 300+ experts across 7 countries, we’ve delivered measurable technology solutions across E-commerce, retail, mobility, travel & logistics, and intralogistics.

Powered by the AI-first foundation, our journey is defined by customer stories of bold transformations in Business, Technology and People. We have partnered with ambitious companies to shape the strategies, systems, and technologies that support their growth.

From large-scale platforms to AI, data, cybersecurity, and robotics, Gradion delivers practical, future-ready solutions for the next generation of Billion Dollar Companies.

Our key values:

🔹 Fairness – We treat our colleagues, clients, shareholders, and the environment with integrity and respect.

🔹 Entrepreneurship – We think like entrepreneurs, taking smart risks and turning ideas into real impact.

🔹 Excellence – We go beyond expectations to deliver results that truly make a difference

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.

Your skills and experience

• 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 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 & Leadership Opportunities – At Gradion, your growth transcends job titles. Collaborate directly with our leadership team, receive mentorship from seasoned experts, and tackle real-world business challenges across tech, consulting, or operations. When you’re ready to advance—whether as a specialist or leader—we’re committed to fueling your success.

🚀AI-First Innovation & Strategic Consulting – We’re shaping a culture where AI is woven into how we think, create, and solve problems—not just a tool in our toolkit. With a consulting mindset, our teams deliver impactful, practical solutions that drive real value. Stay curious, think critically, and leverage AI to make a meaningful difference for clients and users.

💰 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: Unit No.PF-08 on Podium Floor, Sapphire 2 tower, 92 Nguyen Huu Canh Street, Thanh My Tay Ward, Ho Chi Minh City, Vietnam.      
• Da Nang office: 23rd Floor, G8 Golden Building, 65 Hai Phong, Hai Chau Ward, Da Nang City, Vietnam.

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