Projects

At work

• 2026 — now

  VNG Rewards Platform VNG Games · Software engineer — 14+ Go services covering rewards, tiers, points, gift codes and inventory; a business rules engine on ClickHouse for real-time reward calculation; Kafka pipelines with smart-contract audit trails

• 2024 — 2026

  GO-CRM Hasaki · Lead backend engineer — omni-channel CRM (Facebook, Instagram, Zalo, Google Business, TikTok Shop, Shopee, Lazada, web) for 50+ support agents; Redis Stream and Kafka queues holding 99.9% uptime. Go, MongoDB, Redis, Docker

• 2023 — 2026

  GO-HR Hasaki · Backend engineer — re-architected a legacy PHP system into modular Go microservices with Clean Architecture and DDD, cutting query latency by 50%

• 2023 — 2024

  WORKPLACE Hasaki · Frontend engineer — redesign of the internal collaboration platform: task tracking, messaging and internal social features. React, Redux, Ant Design over Go APIs

Freelance & personal

• 2026 — nay

  G-HUB Lead engineer — a company operating system rather than a single app: CRM and deals, omnichannel inbox (Zalo, SMS, Viber, TikTok), email journeys, HRM with attendance, an internal academy, inventory and an exec dashboard. 87 API route groups over 215 Mongoose models, BullMQ queues on Redis for the async work, Socket.IO fanned out through a Redis adapter, CASL for permissions, and Qdrant plus the Anthropic SDK behind the AI features. React SPA, Flutter mobile app, Express backend.

• 2026 — nay

  VNMOVE Lead engineer — a logistics and island-travel ecosystem on one shared backend: rides with realtime dispatch, ferry tickets, hotels, tours and a wallet. One modular monolith (Express, MongoDB, Redis, Socket.IO) split into an API cluster and a worker process, serving four clients: a Zalo Mini App for travellers, an Ant Design Pro admin, a PWA for hotel partners and a Flutter driver app. Zalo login and Checkout SDK, VNPay/MoMo on web, ZNS to customers and FCM to drivers, Goong Maps for routing, shared design tokens and types across the monorepo.

• 2026 · 2 mo

  Teika Solo engineer — dealer ordering inside a Zalo Mini App: passwordless login, prices resolved server-side from the dealer's tier, and credit position gating the order. 16 backend modules, a shared monorepo

• 2026 · 3 mo

  Tú Quyên Spa Solo engineer — Mini App booking synced both ways with KiotViet POS, 20 models, idempotent webhooks, ZNS confirmations and reminders

• 2026 · 5 mo

  Tran Tien Dat Lead engineer — one commerce hub behind a website, Facebook, TikTok and a Mini App, with Pancake POS reconciled on crons and a separate Python search service

• 2026 · 1 mo

  Youth Management Solo engineer — a member register with S3-backed documents and a Zalo Mini App as the only client. Four collections, no more

• 2026 · 2 mo

  GHODA Solo engineer — order and supply-chain management for a metal-parts subcontractor: 30 Prisma models, lot-level traceability, cash position gating purchasing

• 2026 · prototype

  MSROS Solo engineer — one number across four companies: where the money is, what is tied up, what could be withdrawn today. A prototype proving the model before the schema

• 2026 · 3 mo

  Rise Studio Lead engineer — a storefront that is a client of Pancake POS, not a competitor: two-way sync on BullMQ with retries, loyalty balance, blog and social posting

• 2026 · 5 mo

  Taytaotac Lead engineer — an e-commerce API built to be handed over: NestJS + TypeORM on PostgreSQL, RBAC, Swagger generated from the validation decorators

• 2026 · 2 mo

  Kế toán Solo engineer — multi-company accounting on a 31-model schema: payment allocation, inventory snapshots, BOMs, assets with depreciation, payroll

• 2026 · 3 mo

  Galaxy 360 Lead engineer — walkable 360° property tours with the tour as a first-class model, plus leads and per-scene analytics attached to the unit being viewed

• 2026 — nay

  G-connect Lead engineer — Zalo outreach for a sales team, isolated on purpose: own repo, database, Redis, server and IP range, with queue-based pacing throughout

• 2026 · 4 mo

  course.trongpham.vn Solo engineer — a course platform on Payload CMS with a separate React 19 client, so publishing a lesson takes no code change

• 2026 · 4 mo

  Gunshop.vn Solo engineer — customer care as a ZNS pipeline: four segments, 36 approved templates, order data read out of Haravan by n8n

• 2026 · 1 mo

  Galaxy Asset Solo engineer — a property listing platform that refuses to be a marketplace: no brokerage, no deposits, and a public page saying so

• 2025 · 10 mo

  G-Academy CMS Lead engineer — an editorial CMS and learning platform for an enterprise academy

• 2024 · 6 mo

  TheRoom — Mobile Mobile + backend engineer — a cross-platform community app for a Vietnamese real-estate startup

• 2024 · 4 mo

  Medical Admin Suite Kim Anh Medical · Frontend lead — article and protocol management for a clinic group

• 2023 · 3 mo

  iPic1 photo Project mentor — guided a student team building a Pinterest-inspired social app, awarded "Best Project of the Course". Angular, NestJS, Firebase, Docker, GCP

Mentoring student teams

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