System Integration
RESTful APIs, WebSockets, EDI and payment gateways. End-to-end integration phases with real-time data synchronisation across business modules.
[ System Architect ]HCM, VN // 10.8231° N, 106.6297° E
Lead Developer / Integration Engineer
FullstackDeveloper
I build secure, highly-integrated enterprise platforms and custom ERP solutions designed for heavy logistics and automated port operations. Turning complex supply chain bottlenecks into modular, real-time architectures.
- NestJS
- Next.js
- PostgreSQL
- Docker
- RESTful API
Direct terminal contact
chauthoi1211@gmail.comlive
01 / about
9 years shipping systems that carry real cargo
Design and engineering are not two sequential phases. They are one craft.
I'm a software engineering lead and implementation specialist with 9 years in IT. My work sits where business processes meet systems: digital transformation, system integration, and secure application development.
I have led teams through the full cycle — design, build, upgrade — on enterprise platforms for logistics and port operations (GTOS, CFS) and on SAP ERP. Before that I spent five years as an independent security researcher, which is why I treat application security as a design constraint rather than a final audit.
- 2026 — nowTech Lead— SAHOME · Smart AI Co., Ltd
- 2022 — 2025Middle Fullstack Developer— CEH IT Services Co., Ltd
- 2017 — 2022IT Staff / System Specialist— AA Architecture Construction JSC
- 2015 — 2020Independent Security Researcher— Application security · pentest · CVE
- 2015ACM/ICPC — 12th place
- 2014ACM/ICPC — Honorable Mention
- 2021Cyber Santa Security
- 2017B.Sc. Information Technology — IUH
Team & Delivery Lead
Leading developers through design, build and upgrade of internal enterprise applications — progress, quality control and application security.
Application Security
Vulnerability assessment and penetration testing, CVE analysis, incident response, and secure coding guidelines authored for engineering teams.
Data & ERP
SAP master data governance with LSMW, ETL pipelines on SQL Server turning operational data into board-level reporting.
- Backend
- NestJSExpressLoopback 4tRPC
- Frontend
- Next.jsReactTypeScriptTailwind
- Data
- PostgreSQLPrismaDrizzleKnex
- Platform
- KeycloakSupabaseWebSocketSAP
02 / work
Selected projects
A decade of shipping. Each of these went live, held its Lighthouse budget, and survived contact with real users.
01 / 02
04 / products
Products dev
Screens and system maps from the platforms I have built and shipped.
2026CheapCar Booking SystemNextJS · NestJS
2026SePay Payment IntegrationREST · Webhooks · Node.js
2026CASTING PlatformNextJS
2023CFS — Container Freight StationReact · Loopback4
2026Nhất Tâm Group ERPNextJS · ExpressJS
2025GTOS — Gate & Terminal OperationsJQuery · ExpressJS
2026Web3 Crypto DAppReactJS · SUI Network
2026Sahome PlatformNextJS · ExpressJS
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05 / signal
Tech news
What I'm reading and shipping against. Twelve stories per page.
Graphicsweb.devWebGPU ships across every major browser
Compute shaders on the open web move from experiment to baseline capability.
3 min read
FrameworkReact BlogReact Compiler reaches stable release
Automatic memoization removes most manual useMemo and useCallback work.
4 min read
ToolingVercelNext.js turbopack becomes the default bundler
Cold starts drop sharply on large App Router codebases.
5 min read
CSSMDNCSS scroll-driven animations land everywhere
Scroll timelines run off the main thread — parallax without a single listener.
6 min read
PlatformChrome DevView Transitions API arrives for multi-page apps
Native page transitions without turning a site into an SPA.
7 min read
MotionGSAPGSAP goes fully free under Webflow
Every premium plugin, including SplitText and MorphSVG, is now open to all.
3 min read
GraphicsThree.jsThree.js moves to WebGPU renderer by default
TSL lets one shader graph compile to both WebGL and WebGPU.
4 min read
PerformanceGoogleCore Web Vitals replaces FID with INP
Interaction latency becomes the metric that decides ranking impact.
5 min read
CMSPayloadPayload CMS 3 runs natively inside Next.js
The admin panel becomes part of the App Router — one deploy, one codebase.
6 min read
PlatformW3CBaseline 2026 clarifies what is safe to ship
A single badge answers whether a feature is production-ready.
7 min read
CSSTailwindTailwind CSS v4 drops the JavaScript config
Design tokens move into CSS itself with the @theme directive.
3 min read
PerformanceChrome DevSpeculation Rules make instant navigation trivial
Declarative prerendering replaces hand-rolled link prefetch logic.
4 min read