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Hoang Hai

Senior Software Engineer

Ho Chi Minh City, VN LinkedIn FPT Software

About

Accomplished Senior Software Engineer with over 7 years of experience in architecting scalable web applications and leading high-performing engineering teams. Specialized in modern JavaScript ecosystems, cloud-native architectures, and performance optimization. Passionate about bridging the gap between complex technical requirements and elegant, user-centric solutions.

Experience

Senior Software Engineer

FPT Software
Oct 2023 — Present
  • Optimized the front-end architecture for a massive Civil Registry System, featuring 200+ complex modules/pages, significantly improving Largest Contentful Paint (LCP) by 2 seconds through component lazy-loading.
  • Minimized development overhead and data-sync complexity by architecting a modern state management flow using Jotai and TanStack Query, enabling the team to deliver a demo-ready product for stakeholders in record time.
  • Delivered high-stability features for Fast Retailing’s Warehouse System, ensuring 100% alignment with strict change requirements through robust TypeScript/React.js implementation and proactive bug resolution for a 50+ member team.
  • Led 10 Front-End engineers to successfully launch the Itochu Corp production system researching technical solutions (Nuxt.js, Quasar) and conducting daily reviews.

Software Engineer II

Ahaslides
Apr 2022 — Sep 2023
  • Applied basic LLM (Transformer models) to generate 1,000,000+ community slides from Wikipedia, significantly expanding the platform’s content library and organic search visibility.
  • Increased user signups by 15% by architecting a high-performance Templates page using Nuxt.js, improving PageSpeed Insights scores from 60 to 95.
  • Pioneered the development of Ahaslides Add-ins for PowerPoint, expanding the product’s reach to the Microsoft Office ecosystem via the Office Add-ins framework.
  • Developed internal SEO-driven tools including a Random Team Generator and Spinner Wheel, directly contributing to increased user engagement and retention.

Software Engineer I

FPT Telecom
Jun 2020 — Apr 2022
  • Architected a real-time 2D monitoring dashboard to visualize live data for 2,000+ devices on a single interface.
  • Developed custom 2D/3D datacenter editors using Three.js, enabling non-technical users to model complex 3D scenes.
  • Engineered a device warranty analytics dashboard leveraging Elasticsearch and MySQL, providing real-time data insights for the OTS departments daily operations.
  • Successfully migrated legacy jQuery projects to a modern React.js stack, enhancing 2x faster feature deployment cycle and long-term codebase maintainability.

Education

Posts and Telecommunications Institute of Technology (PTIT)

B.S. in Information Technology

Posts and Telecommunications Institute of Technology (PTIT)

Class of 2015 - 2020

Certifications

Skills

LANGUAGES

TypeScript JavaScript Python Go SQL

FRONTENDS

Vue Nuxt.js React Next.js TailwindCSS

BACKEND & INFRASTRUCTURE

Node.js PostgreSQL MySQL Docker AWS

Tools

Tools and software I use daily to craft digital products.

DESIGN

Figma

Collaborative design tool

Stitch

Design with AI - Google

Blender

Free, open-source 3D computer graphics suite

PRODUCTIVITY

Jira

Industry-leading project management tool that brings every team together.

Notion

Personal Knowledge Base

Lighthouse

Open-source, automated tool to help you improve the quality of web pages

DEVELOPMENT

VS Code

Primary IDE

Claude Code

Anthropic's agentic coding tool for developers.

Gemini

AI Assistant