BUI HOANG HA

Product Builder | Technical Product Manager

Available for Roles
buihoangha170300@gmail.com+84 326 876 420 (Phone & WhatsApp/Zalo)Hanoi, VietnamEnglish: Fluent (Professional Working Proficiency)

EDUCATION

Tourism and Travel Services Management
University Degree
Bachelor of Arts
  • •Formal training in customer service excellence, operational workflows, and team management.
  • •Applied frontline operational empathy directly to product discovery, user flows, and software features.

PROFESSIONAL SUMMARY

Product Builder with a strong operational background in hospitality and F&B. Deep understanding of frontline friction, combining practical empathy with solid technical fundamentals to build simple, reliable software alongside developers. Fluent in English, proactive, and accountable.

SKILLS & EXPERTISE

Project & Product Management

  • •Weekly milestone planning & sprint tracking (Agile)
  • •Bridge communication between frontline users and developers
  • •Write clear feature specifications and User Flow diagrams
  • •Hands-on manual testing to catch bugs before handoff

Domain Knowledge & Technical

  • •Deep understanding of cafe, restaurant and hospitality operations
  • •Solid programming fundamentals (logic, data types, loops)
  • •Next.js, React, Tailwind CSS, Firebase Firestore, Git
  • •Deploying websites and configuring custom domains independently

SHIPPED PRODUCT PROJECTS — Operations & Internal Tools

CafeTime — Shift scheduling & attendance app for coffee shops

Coffee Shop
Problem: The coffee shop tracked shifts and hours with paper notes and spreadsheets, leading to errors in hours, delayed monthly pay, and disagreements.
Solution: Built a simple web app on Next.js letting staff clock in/out on their phones, while the owner tracks hours and calculates monthly pay accurately.

Impact: Cut hours spent calculating monthly payroll and stopped wage disputes completely. Used daily by the coffee shop.

Tech Stack:Next.jsReactPermissionsGoogle LoginVercel

GoldCar12 — Dispatch & shift revenue tracking app for shared car fleets

Car Fleet
Problem: Drivers often swapped customer rides informally, creating confusing debt records, missing trip details, and messy calculations at the end of each shift.
Solution: Built a dispatch app on Firebase: dispatchers assign rides in seconds, drivers accept trips on mobile, and the app calculates earnings automatically.

Impact: Replaced paper logbooks with clear ride and revenue tracking, making pay transparent for every driver and smoothing team operations.

Tech Stack:Firebase FirestoreField ResearchDB DesignTrip Math

SHIPPED PRODUCT PROJECTS — Storefronts & Retail

Hobby Collectibles Storefront — E-commerce storefront for model kits and collectibles

Retail Store
Problem: The store stocked hundreds of model kits across different lines. Slow loading times and confusing categories made it hard for buyers to find what they wanted.
Solution: Built a fast Next.js store with an easy-to-use filter (brand, series, price) and a smooth shopping cart.

Impact: Customers browse and buy faster, inventory stays organized, and the shop spends less time answering repetitive price inquiries.

Tech Stack:Next.jsReactTailwind CSSSpeed Optimization

Luxury Perfume Boutique — Digital showcase & storefront for fine fragrance

Perfume Shop
Problem: Buying perfume online is difficult when descriptions are generic and abstract, making customers hesitate before ordering.
Solution: Built a clean website that visually explains fragrance notes (top, heart, base), suggests scents by occasion, and connects directly to chat support.

Impact: Gives a refined, trustworthy impression, keeps visitors reading longer, and prompts more direct consultation messages and orders.

Tech Stack:Next.jsReactModern UIProduct Showcase

HOW I WORK

01Listen first

Talk directly with real users to find where the biggest time waste or confusion is.

02Map the steps

Draw out the workflow clearly before building, preventing expensive re-work later.

03Build core first

Focus strictly on must-have features so users can try a working version early.

04Test on phones

Have real people try the app, watch where they get stuck, and fix bugs immediately.

05Launch & support

Deploy to production, connect domains, guide users, and stay ready to help.

WHAT I'M LEARNING NEXT

Node.js & Backend BasicsIn Progress

Practicing server-side API design, request handling, and relational database queries.

Python & Data AutomationPracticing

Writing simple scripts to automate file handling, pull data, and generate operational summaries.