★ Index2025 / 26
Coords10.7°N · 106.6°E
DisciplineFront-end · Systems
StatusAvailable Q2
N°
01
Field Studies — Frontispiece

Nguyen Tan Hiep.

centopw · Front-end & product engineer · HCMC
§ The thesis

I build front-end systems that hold up after launch — surviving handover, locale shifts, and the messy parts of  production .

Vol. 01 · 2025/26
Practice3+ years
Shipped10+ production systems
LanguagesEN · VI
Open toRemote · Full-time
Scroll to descend
Next.js✦TypeScript✦Payload✦Sanity✦Cloudflare✦Postgres✦Langchain✦Docker✦Next.js✦TypeScript✦Payload✦Sanity✦Cloudflare✦Postgres✦Langchain✦Docker✦Next.js✦TypeScript✦Payload✦Sanity✦Cloudflare✦Postgres✦Langchain✦Docker✦
§ 01 — How I work
A short note from the desk.
I build front-end systems that hold up after launch — the long tail no one demos: handover between teams, locale shifts, performance budgets, and the edge cases that surface six months in. Three years across hospitality CMS, AI marketplaces, and multilingual content platforms. Ten production systems shipped, eleven CMS collections modeled, fourteen agents orchestrated, and a 30% Core Web Vitals lift on the legacy refactor that started it all.
— Hiep, from Ho Chi Minh City.
L 01
L 02
L 03
L 04
L 05
The interfaces worth building are the ones still legible six months after launch — fast, type-safe, and extensible by the next engineer who reads them.
3+ yrs
In production
−30%
Core Web Vitals lift
14
Specialised AI agents shipped
4k
Monthly readers · field notes
§ 02 — Signature

Hand at  the desk. 

Three years of building production systems out of Ho Chi Minh City — the kind that survive handover, locale switches, and the messy parts of cloud storage. I draw the system before I write a line of TSX, then I keep redrawing it as the product moves.

Move the cursor across the panel — the letters resolve into github.com/centopw. Click to visit.

BasedHo Chi Minh City
Open toRemote · Hybrid
Time-zoneUTC+7 · ICT
EngagementsQ2 — Q4 · 2026
PLATE I — N°011github.com/centopw ↗
SUBJECT — centopwRENDERED IN-BROWSER ✦
Architecture✦Performance✦Type-safety✦Architecture✦
—— interface as cartography ———— interface as cartography ——
§ 03 — Archive
Eight surveys,
indexed.
Selected work, sorted by year. Featured surveys are starred; categories filter the index. Click any row to descend to the case archive.
N° 01 ★WashlySoftwarePO & Lead Engineer2026↗N° 02YenSaoUyenNguyenWEBFullStack2026↗N° 03 ★SonataWEBPO & Lead Engineer2025↗N° 04 ★StartupConnectAIFull-stack2024↗N° 05VDBCWEBFullstack2024↗
§ 04 — Selected Surveys
Three cases,
read closely.
Three production systems — what they did, what was hard, and what shipped.
№ 01Lead engineering — production CMS
Washly.
2026 · PO & Lead Engineer
An AI Agent powered car care assistant for a leading automotive service brand.
Design a low-latency, high-throughput system to handle 500+ concurrent users with real-time AI interactions. Implement a robust content management solution that supports dynamic updates and localization across multiple regions.
A fully functional AI assistant integrated into the brand's digital ecosystem, capable of handling complex user queries and providing personalized car care recommendations. The system supports seamless content updates and localization, ensuring a consistent user experience across different markets.
№ 02Founder–builder marketplace · AI2025 · PO & Lead Engineer
Sonata.
i.Brief
A multi-tenant content engine for hospitality brands.
ii.What was hard
Locale lived at the database layer, not the route layer. Uploads went browser → R2 direct, no API hop. Cache invalidation spanned slugs, media, and the dozen rendered pages they fed.
iii.Shipped
12+ pages live across three brands, 11 CMS collections modeled, 500MB direct R2 uploads handled in-browser, EN/VI/RU locale support out of the box.
Stack
Next.js App RouterRSCPayload CMSMongoDBCloudflare R2GSAP
StartupConnect.
№ 032024 · Full-stack
L0 · Brief
A founder–builder marketplace with explainable AI matching.
L1 · What was hard
Compatibility had to be auditable, not magic. Fourteen specialised agents — market, finance, risk, persona, SWOT — needed to converge into one explainable score. Postgres schema migrated under live RLS without dropping a row.
L2 · Shipped
14+ specialised agents in production, a four-dimensional compatibility model the user can drill into, schema-safe migrations behind Postgres RLS.
L3 · Stack
Next.jsSupabasePostgres + RLSLangchainTailwind
§ 05 — Legend
The toolkit,
indexed.
A working legend, not a wishlist. Bars reflect comfort under production fire, not certificates.
FE-01
Next.js · App Router
FE-02
React · TypeScript
FE-03
Tailwind · CSS systems
FE-04
Angular
BE-01
Node.js · REST/GraphQL
BE-02
Python · Django
OPS-01
Docker · Compose
OPS-02
Proxmox · Ansible
OPS-03
Cloudflare · AWS · Nginx
CMS-01
Payload · Sanity
DB-01
Postgres · Mongo · Supabase
AI-01
Langchain · multi-agent
§ 06 — Strata
Trajectory,
in layers.
2020 — present
2023 — 25
HAVESoftware Engineer
Shipped 5+ production-grade Next.js + Django apps end-to-end. Refactored legacy into modular clean architecture, lifted Core Web Vitals ~30%, and ran self-hosted infra on Docker / Proxmox / Ansible.
HCMC · Full-time
2024
STARTUPCONNECTIndependent Build
Designed and architected a founder/builder matching marketplace with explainable AI scoring and a 14-agent backend.
Self-directed
2020 — 24
HUTECHVice President · Student Council
Represented 5,000+ students; produced 40+ events including tech workshops and career fairs. +35% participation.
Leadership
2022
HAW HAMBURGExchange Researcher
Full-scholarship exchange in robotics, vision and task scheduling. Built stereo-vision pick-and-place and obstacle-avoidance robots.
Hamburg · DE
2020 — 24
HUTECHB.Sc. Information Technology
Algorithms · Database management · Computer networks · System design.
Education
§ 07 — Available for new workHCMC · 10.776°N · 106.700°E
Open for
 engineering work. 
tanhiep26@gmail.com
Direct
Index
Detail
Based in Ho Chi Minh City. Working hours align with UTC+7 (ICT). Comfortable working in English (C1) and Vietnamese (native).
Set in Instrument Serif, Inter Tight, and JetBrains Mono. Built with Next.js, GSAP, and Lenis.
© 2026 — Nguyen Tan HiepICT —v01.1
SHEET 01 / 07FRONTISPIECE
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FIELD STUDIES