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Jose
Creating with code. Small details matter.
Overview
Social Links
About
Hello, World! I am Smae Tongmenglay (nickname Jose) — a Full-Stack Engineer passionate about creating seamless, user-centric web and mobile applications with intuitive and engaging designs.
With 3+ years of experience, I specialize in building high-quality applications using Next.js, React Native, Vue.js, Shopify Hydrogen, Go, and other modern technologies — spanning frontend, backend, mobile, and DevOps.
Currently, I'm working at Haystack Labs, where I build and maintain a range of products including Haystack Hub (an AI-powered email marketing command center), SV Agent (an AI chatbot for internal operations powered by Claude and Gemini), Fuyez (an educational platform), OnDeck (a mobile attendance gamification app), J-Keydge (a premium fashion e-commerce on Shopify), and more.
Beyond work, I'm an active open source contributor and enjoy exploring new frameworks, integrating AI into real-world tools, and turning ideas into reality through personal projects.
Let's connect and collaborate!
GitHub Contributions
Stack
Experience
Haystack Labs
Current Employer- Build Haystack Hub — centralized SaaS command center for managing email marketing across multiple projects, featuring contact CRM, drip campaigns, broadcast emails, blog CMS, AI-powered content generation, and analytics dashboard. Built with Next.js 16, Drizzle ORM, Neon PostgreSQL, Resend, and Vercel AI SDK.
- Develop SV Agent — AI chatbot assistant for internal operations, powered by Claude and Gemini with tool use for querying production MySQL databases (~170 tables across 4 databases), sending bulk emails via Resend, and monitoring service health. Features streaming chat, token usage tracking, and 48 composable AI UI components. Built with Next.js 16, Vercel AI SDK, and Better Auth.
- Build Fuyez — educational platform about economic pressure and systemic inequality, with multi-language blog (EN/FR), email capture surveys, and admin dashboard for content management. Built with Next.js 16, Drizzle ORM, and Deepseek AI integration.
- Develop OnDeck App — mobile attendance and gamification platform with QR code clock-in/out, points/levels/badges system, streak multipliers, and Hall of Fame/Wall of Shame leaderboards. Built with React Native Expo, Convex real-time backend, and Nativewind.
- Build ASEPT Corp Dashboard — corporate dashboard for managing products, categories, and blog content with multi-language support (EN/FR), Cloudinary image management, and rich text editing. Built with Next.js 15, Convex, HeroUI, and TipTap.
- Develop J-Keydge Shopify — premium fashion e-commerce storefront for a French slack jacket brand with wholesale platform, multi-language support (EN/FR), customer accounts, order management, and blog. Built with Shopify Hydrogen, Remix, Tailwind CSS, and Resend.
- Develop Haystack Global website and Haystack Blog.
- TypeScript
- React
- Next.js
- React Native
- Vue.js
- Go
- Node.js
- AI/LLM Integration
- Vercel AI SDK
- Shopify
- DevOps
- Full Stack Development
Wonderpass
- Develop Cigardash web application using Next.js, Zustand, nuqs, SWR, and modern frontend technologies.
- Develop GO. by Wonderpass, a mini-service platform that integrates with banking and payment services, serving as the parent ecosystem for multiple child services:
- GO-Cinema: Cinema ticket booking service with seamless user experience
- GO-Tickets: Event ticketing service for concerts and entertainment bookings
- GO-Taxi: Ride-hailing and transportation booking solutions
- GO-Ferry: Ferry ticketing services for public transportation
- GO-Bus: Bus ticketing services for public transportation
- GO-Dining: Restaurant reservation and dining experience services
- GO-eSIM: Digital SIM card management and telecommunications services
- Implement robust frontend solutions using Vue.js, shadcn vue, and motion vue for animations, ensure UI/UX consistency and adherence to design standards across all GO services, and integrate with banking and payment providers including Bakong (central bank digital currency), Wing Bank, U-Pay (fintech/PSP), Phillip Bank, and TrueMoney (e-wallet service) for seamless payment processing.
- TypeScript
- React
- Next.js
- Vue.js
- Zustand
- SWR
- Payment Integration
- Frontend Development
- Teamwork
- Problem-solving
Coolbeans Digital
- Developed GOODY SHOP ecommerce application with comprehensive shopping features and user experience (Web | App Store | Play Store).
- Built Jelly Jelly App for cinema and events ticket booking (Play Store | App Store).
- Implemented cross-platform mobile solutions using Flutter framework.
- Ensured UI/UX consistency and adherence to mobile design standards.
- Developed and maintained core features to enhance app functionality and user experience.
- Integrated APIs and backend services for seamless data flow.
- Optimized app performance and implemented responsive design patterns.
- Collaborated with design and backend teams to deliver high-quality mobile applications.
- Flutter
- Dart
- Mobile Development
- Cross-platform
- API Integration
- UI/UX Implementation
- Performance Optimization
Freelance
Education
- Graduated with a Bachelor's degree in Management Information Systems.
- Advanced English proficiency level.
- Completed several projects, including:
- FoodFarm Ecommerce — Food selling platform built in 2023
- NextStore ecommerce — Digital products marketplace (phones, desktops, MacBooks) built in 2024
- Jelly Task Management — Task management app built on Inertia.js with real-time WebSocket updates in 2025
- Lumo Cinema — Cinema ticket booking app that uses MCP built in 2025
- Dart
- PHP
- Python
- Data Structures
- Algorithms
- Advanced Databases
- Systems Design
- Software Engineering
- Self-learning
- Teamwork
- Presentation
