Senior Fullstack Developer

GRADION

Senior Fullstack Engineer at Gradion handling e-commerce experience from UI/UX to backend integrations. Contributing to performance optimization and multi-currency setups while ensuring reliability.

Posted 5/22/2026full-timeHo Chi Minh City • 🇻🇳 VietnamSeniorWebsite

Tech Stack

Tools & technologies

AWSJavaScriptNode.jsReactTypeScriptVue.js

About the role

Key responsibilities & impact

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

Requirements

What you’ll need

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.

Benefits

Comp & perks

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.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

TypeScriptNode.jsReactVue.jsLiquidAWSA/B testingfrontend performance optimizationGitCI/CD

Soft Skills

communicationteam collaborationtechnical discussions