It's me, Lam Doan

I'm a Creative Creative a Motivated Motivated an Innovative Innovative a Passionate Passionate a Problem Solver Problem Solver a Team Player Team Player a Creative Creative a Motivated Motivated an Innovative Innovative a Passionate Passionate a Problem Solver Problem Solver a Team Player Team Player

Senior Full-stack Engineer with 4+ years of experience building and operating production-grade web applications for e-commerce, AI- assisted platforms, and enterprise systems.

Specialized in frontend-focused full-stack development using React, Vue, TypeScript, and Node.js, with strong ownership in API design, third- party integrations, and scalable backend workflows. Experienced collaborating with international teams across US, Israeli, and Japanese markets.

Download my resume download
star star circle circle triangle diamond
hero-image
Quick Learner

Quick Learner

I adapt quickly to new technologies and continuously expand my skill set.

Problem Solver

Problem Solver

I analyze challenges effectively and deliver practical, well-structured solutions.

On-Time Delivery

On-Time Delivery

I consistently deliver high-quality projects on schedule and within scope.

Effective Communication

Effective Communication

I communicate clearly and collaborate efficiently with clients and team members.

đź’» My skills

What I Can Do

Frontend

JS JS
Vue.js Vue.js
React.js React.js
Nuxt.js Nuxt.js
Angular Angular
Astro Astro

Backend

Node.js Node.js
Express Express
Spring Boot Spring Boot
Laravel Laravel
Docker Docker
Strapi Strapi

Database

MySQL MySQL
PostgreSQL PostgreSQL
MongoDB MongoDB
Redis Redis

DevOps

Docker Docker
AWS AWS
Hostinger Hostinger
CI/CD CI/CD

Others

Git Git
GitHub GitHub
Bitbucket Bitbucket
Figma Figma

0

Years of Experience

0

Projects Completed

0

Clients Served

0

Markets Served

đź’Ľ My career journey so far

Professional Work Experience

MERCATUS

Stor.ai

Stor.ai

Enterprise E-commerce Platform

Description: Stor.ai is a large-scale enterprise e-commerce platform serving major retail chains across Israel, the US, and multiple international markets. The system provides an end-to-end e-commerce solution, from POS and inventory intake to ordering, promotions, and integrations with payment, delivery, and loyalty services.
Technologies: AngularJS, Next.js, Node.js (Express), Typescript, T-SQL
MERCATUS

Stor.ai

Enterprise E-commerce Platform

🗓️ 04/2025 – Present

Responsibilities:

  • Developed and maintained business-critical workflows, including order-related processes, delivery integrations, and operational CMS features for a large-scale e-commerce platform
  • Owned the implementation of a unified Google authentication flow (OIDC + People API) across web and Cordova-based Android/iOS applications.
  • Implemented webhook-based integrations with third-party delivery providers to handle driver assignment and delivery events.
  • Rebuilt and standardized transactional email workflows (order, payment, refund), ensuring consistent behavior across multiple clients.
  • Maintained CMS modules, fixed production issues, and ensured system stability in a high-traffic environment.

Genki Tech Solutions

Yuzu

Yuzu

Product sales management for a Jpop band

Description: Supported the development and maintenance of an e-commerce platform for a popular Japanese idol group's fanclub. The site includes product management, articles, announcements, and fan-related content.
Technologies: Reactjs with Typescript, Ruby on Rails, Postgres, Redis
Genki Tech Solutions

Yuzu

Product sales management for a Jpop band

🗓️ 01/2025 – 03/2025

Responsibilities:

  • Set up the system and documented technical specifications.
  • Assisted in debugging and resolving issues left by the previous development team.

Genki Tech Solutions

PTA

PTA

Parent-Teacher Association

Description: PTA is a nationwide system supporting communication and relationship management between schools and parent–teacher associations in Japan, developed for government-related education use.
Technologies: Laravel, jQuery, MySQL, Figma
Genki Tech Solutions

PTA

Parent-Teacher Association

🗓️ 06/2024 – 01/2025

Responsibilities:

  • Contributed to the development of a nationwide management system for parents, teachers, students, and school staff.
  • Built and maintained CMS features for managing announcements, documents, and media content used across schools.
  • Designed and implemented role-based access control and bulk account provisioning via CSV for parents and guardians.
  • Developed family relationship management features to handle parent–child and guardian associations.
  • Integrated notification workflows, including email subscriptions and daily Slack alerts for system activities.
  • Contributed to system design and long-term operation, including maintenance and coverage testing.

Genki Tech Solutions

EMLINX

EMLINX

Description: Developed a store incident management system for handling theft and damage reports.
Technologies: ReactJS with Typescript (Zustand, MUI,... ), Golang, Postgres, Docker, OpenAPI generator
Genki Tech Solutions

EMLINX

🗓️ 04/2024 – 06/2025

Responsibilities:

  • Contributed to the development and debugging of ReactJS application with Material UI.
  • Built a Line Chat integration feature.
  • Improved user experience.

Genki Tech Solutions

AIdaBot

AIdaBot

AI-powered Q&A & Document Intelligence Platform

Description: AIdaBot is an AI-powered document Q&A assistant that improves information access by combining AWS OpenSearch with ChatGPT and LangChain for optimized retrieval and context-aware responses.
Technologies: Nuxt.js, Node.js (Express), MySQL, Redis, Docker, AWS OpenSearch, ChatGPT, LangChain
Genki Tech Solutions

AIdaBot

AI-powered Q&A & Document Intelligence Platform

🗓️ 12/2023 – 04/2024

Responsibilities:

  • Contributed to the design and implementation of an AI-assisted document Q&A platform, focusing on system architecture and CMS.
  • Developed and maintained CMS features for managing documents, configurations, and chatbot behavior.
  • Designed system workflows to support document-based question answering using ChatGPT, LangChain, and AWS OpenSearch.
  • Integrated the chatbot with Facebook Fanpage messaging to enable real-time user interactions and automated responses.
  • Integrated the chatbot into external websites via embeddable scripts, including a proof of concept using a custom Liferay portlet.
  • Implemented unit tests and contributed to system stability through iterative improvements and ongoing maintenance.

Genki Tech Solutions

PMS

PMS

Property Management System - Smart Hotel & Facial Recognition Platform

Description: PMS is a smart hotel management system designed for contactless operations during the COVID-19 period, enabling unmanned hotel workflows through facial recognition–based check-in and service usage. The platform integrates with most major OTA providers, like Booking.com and Agoda, and supports area-based service management
Technologies: Vue.js (Vue 2, Vuex, BootstrapVue), Spring Boot, Koa.js, AWS Rekognition, Swift UI Kit, MySQL
Genki Tech Solutions

PMS

Property Management System - Smart Hotel & Facial Recognition Platform

🗓️ 12/2021 – 11/2023

Responsibilities:

  • Developed and maintained a smart hotel management platform enabling contactless, unmanned operations for enterprise clients in Japan, covering reservations, check-in workflows, and on-site services.
  • Played a key role in designing and implementing facial recognition–based check-in systems, including end-to-end UI and backend workflows for iPad devices environments.
  • Integrated OCR and facial recognition into the check-in flow, significantly reducing manual input and on-site staff workload.
  • Implemented and optimized AWS Rekognition, improving facial recognition accuracy by approximately 90% compared to the previous solution.
  • Optimized backend APIs for reservation and check-in flows, reducing response time by around 20% in critical user journeys.
  • Contributed to complex third-party integrations, including OTA platforms, payment kiosks, room cleaning systems, and real-world deployments such as a facial recognition–based ticketing system for the Sado Gold Mine tourist site.

CYBERDINO (Freelance)

Nhat Quang Edu Game

Nhat Quang Edu Game

AI-assisted Career Orientation Platform

Description: Nhat Quang Edu Game is an educational simulation platform that evaluates users through interactive challenges to provide career orientation, with AI-assisted tools for generating tasks and missions based on industry trends.
Technologies: React.js, TypeScript, React Query, Ant Design, Tailwind CSS, Strapi, PostgreSQL, Gemini API, OpenAI API
CYBERDINO (Freelance)

Nhat Quang Edu Game

AI-assisted Career Orientation Platform

🗓️ 06/2024 – 12/2024

Responsibilities:

  • Contributed to the development and debugging of ReactJS application with Material UI.
  • Built a Line Chat integration feature.
  • Improved user experience.

Freelancer

HR-Lotus

HR-Lotus

Human Resource Management System (Healthcare)

Description: HR Lotus is a hospital-focused HR management system supporting staff management, task assignment, payroll calculation, and workflow tracking.
Technologies: Vue 3, TypeScript, Vue Query, Element+, Tailwind CSS, Node.js (Express), PostgreSQL, Docker
Freelancer

HR-Lotus

Human Resource Management System (Healthcare)

🗓️ 06/2025 – 12/2025

Responsibilities:

  • Contributed to the development and debugging of ReactJS application with Material UI.
  • Built a Line Chat integration feature.
  • Improved user experience.

I'd love to hear from you!

Whether you have a question or just want to say hi, I'll try my best to get back to you!

Contact