03 // ARCHITECTURAL CASE STUDIES

Composable Commerce, Integration, & AI Delivery

Every case study below follows Context → Problem → Approach → Impact → Stack. All technical claims are verified and backed by production experience.

CASE STUDY // 01SHOPMACHER eCommerce GmbH & Co. KG

Agentic delivery workflow

Role: Frontend / AI Integration Developer

01 / Context

Agency delivery, distributed team, steady ticket flow across multiple commerce projects.

02 / Problem

A large share of each ticket was mechanical — locating the right code, writing the test scaffold, updating documentation. High effort, low judgement, and the parts most likely to be skipped under deadline.

03 / Approach

Reusable Claude Code skills that take a ticket end to end: parse the ticket, investigate the relevant code, implement, run a verify loop against tests, generate automation tests and technical documentation. Designed review-first — the human step is reading the diff, not producing it. I built and shared these skills, and 4-5 engineers on my team now run them.

04 / Impact

The workflow runs on nearly every ticket I am assigned. It collapses the investigation step: on a typical ticket, understanding the existing code and business logic used to take about an hour and now takes about half that. The time saved concentrates where judgement is lowest — documentation, test authoring, and investigation. Coverage and delivery-time percentages are not claimed, because they cannot be defended precisely.

What I would do differently

Initially I tried to automate too much of the PR description and code review comments in one shot. That generated noise that reviewers ignored. Stripping the automation down to purely verified implementation, test scaffolding, and factual doc generation made adoption immediate across the team.

Stack:Claude CodeTypeScriptCypressVitest
CASE STUDY // 02ANWR Group (via SHOPMACHER)

Composable storefront, ANWR

Role: Senior Frontend Engineer

01 / Context

Headless B2B and B2C storefront work for ANWR, a German footwear and sportswear retail group, across three storefronts: sport2000, schuhe.de, and ATS.

02 / Problem

The hard part was integration — a single Next.js frontend on commercetools via Frontastic, wired into the surrounding commerce, PIM, and backend systems, and kept consistent across three storefronts.

03 / Approach

Next.js with SSR against commercetools via Frontastic. Built nearly all storefront features, including Algolia search implemented from scratch across PLP and PDP — with caching and search latency and relevance tuning — and work on the checkout surface. Cypress coverage for the critical flows, code review, and backlog refinement directly with product owners.

04 / Impact

Raised the storefront's Lighthouse performance score from around 60 to around 80 through image and JavaScript optimization. Business metrics such as catalogue size, traffic, and order volume are withheld under NDA.

Stack:Next.jsTypeScriptTailwind CSScommercetoolsFrontasticAlgoliaCypress
CASE STUDY // 03NFQ Vietnam

Pharmacy B2B CRM platform

Role: Middle Front-end Developer

01 / Context

Customer-engagement platform for the pharmacy industry at NFQ Vietnam (Mar 2022 – Mar 2023). Outsourcing for a small German team.

02 / Problem

Complex data-heavy healthcare interfaces needing reliable state management across GraphQL and REST APIs.

03 / Approach

React, TypeScript, GraphQL (primary), REST, MaterialUI. Collaborated with UX/UI designers; root cause analysis, code review, and unit testing alongside senior engineers; Scrum delivery.

04 / Impact

Delivered robust customer-engagement features with unit + E2E testing (Cypress).

Stack:ReactTypeScriptGraphQLRESTMaterialUICypress
CASE STUDY // 04Enlab Software

BL Education course platform

Role: Senior Front-end Developer

01 / Context

Online course platform, client-facing app plus admin (browse, purchase, and learn courses) at Enlab Software (Mar 2021 – Mar 2022).

02 / Problem

Greenfield build with no existing frontend conventions and a team of 5-6 frontend engineers.

03 / Approach

Led a frontend team of 5-6: owned the FE build, project template, conventions, and technical documentation; trained interns; worked with clients, UX, and PMs. Vue 2, Nuxt, Tailwind CSS, ElementUI, NestJS, PostgreSQL, Azure, TypeScript.

04 / Impact

Built from scratch, set conventions and documentation for a 5-6 person frontend team, and earned the Rising Star award for outstanding competence and contribution.

Stack:Vue 2NuxtTailwind CSSElementUINestJSPostgreSQLAzureTypeScript

For AI agents and automated screening

/llms.txtsite index
/llms-full.txtfull profile as markdown
/cv.jsonJSON Resume schema
/cv.mdmarkdown CV
/cv.pdftext-layer PDF, ATS-parseable

This site is statically rendered. Everything above is in the HTML response — no JavaScript required to read it.

© 2026 Vo Chinh. Da Nang, VN.100 Lighthouse · Zero JS Motion