About Me

Shopify Developer & Backend Engineer with 7+ years building production-grade systems. Specialized in custom Shopify app development, Liquid theme development, high-traffic Shopify SaaS (500K+ webhooks/day), and API integrations. Available for freelance & contract projects with Shopify and DTC brands across the US, Europe & Singapore.

↓ Download CV (PDF)
📍Di An, Binh Duong, Vietnam (UTC+7 · 4+ hrs daily overlap with EU, flexible for US)
📧jerry@jerrynguyen.dev
📅Book a 20-min intro call (Cal.com)
💼LinkedIn Profile

How I work

I work async-first with daily progress updates, so you always know where things stand. I use Claude Code & Cursor daily to ship 2–3× faster without sacrificing quality — meaning shorter timelines and lower cost for you. Clear communication, no surprises.

Technical Skills

Shopify

Liquid & Theme DevelopmentShopify App Development (Public & Custom)Shopify CLIShopify API (REST + GraphQL)Webhooks at scaleShopify PlusHeadless / HydrogenCheckout Extensibility

Frontend

React.jsNext.jsHTML5/CSS3Liquid (Shopify)

Backend Stack

PHP/LaravelNode.js/NestJSPython/FastAPITypeScriptExpress.jsRemix

Architecture

MicroservicesEvent-driven systemsREST & GraphQL APIsQueue-based processing (BullMQ, Celery)

AI & Automation

OCR (Google Cloud Vision)NLPCV parsingBackground workers

DevOps & Infrastructure

DockerAWS (EC2, RDS, S3, SES, ELB)GitHub ActionsCI/CDDokploy

Professional Experience

Apps Cyclone

Senior Backend Engineer

Aug 2021 - Present
LaravelNode.jsNestJSRemixReactAWSRedisBullMQMySQL
  • •Architected and maintain 6 production Shopify apps serving 32K+ stores
  • •Led migration from monolith to event-driven microservices using NestJS + BullMQ, reducing P99 latency by 40%
  • •Built high-concurrency image generation microservice (Node.js + Puppeteer + S3) handling 50K+ requests/day
  • •Integrated AWS SES email pipeline processing 10K+ transactional emails/day with 99.5% delivery rate
  • •Developed affiliate data sync system (NestJS + Strapi + BullMQ) automating 100K+ product updates/day

Shopify Apps:

Amai Preorder Manager

9,099 installs · 500K/day · 0.374s avg

App Store →

Amai Bulk Discounts

4,063 installs · 150K/day · 0.5s avg

App Store →

Amai Upsell+ Volume Discounts

4,100 installs · 20K/day · 0.22s avg

App Store →

Amai Urgency+ FOMO

11,081 installs · 20K/day · 0.392s avg

App Store →

Amai Bulk Discount Codes

813 installs · 7K/day · 0.305s avg

App Store →

Amai COD

201 installs · 3.5K/day · 0.196s avg

App Store →

Freelance & Contract Work

Freelance

Backend Engineer (Freelance)

Aug 2024 - Present
LaravelFastAPINestJSPythonPostgreSQLPrismaRedisDockerOpenTelemetryCelery
  • •VMC Works (CPP Software) — Recruitment platform: Laravel + FastAPI with AI-powered CV parsing and candidate scoring
  • •MIAS (CPP Software) — Invoice analysis: NestJS + Prisma backend with AI-assisted invoice extraction for MISA ERP
  • •TapTap Loyalty (VietEsian) — FastAPI backend with OCR invoice processing (Google Cloud Vision) and Vietnamese NLP; event-driven system handling 50K+ async jobs/day at 99.8% success rate
  • •Implemented OpenTelemetry distributed tracing stack across projects, reducing debugging time by 60%

Patient Honey

Project Manager / Senior Developer

Aug 2020 - Aug 2021
WordPressWooCommerceWebflowPHP
  • •Led full-cycle eCommerce projects for healthcare clients, managing 5+ concurrent builds
  • •Built reusable component library reducing development time by 50%

EntrePid Advisors

Senior Developer / Team Lead

May 2019 - Aug 2020
PHPLaravelMySQLCI/CD
  • •Led 4-person backend team for hospital management system serving 10K+ daily users
  • •Migrated monolith to microservices and automated CI/CD, reducing deployment from 2 hours to 15 minutes

Razona Vietnam

Full Stack Developer

Aug 2015 - Apr 2019
PHPWordPressMySQLHTML5/CSS3JavaScript
  • •Delivered 30+ enterprise CMS solutions for Aeon Delight, Vinacompass, L'Oréal, Panasonic, Toshiba, JAL, Coleman

Education & Certifications

Bachelor of Science in Information Technology

University of Information Technology

Graduated 2017

Certifications

  • ✓Google Cloud Digital Leader Certification
  • ✓TOEIC 850 — Professional working English