EERIC HUANGPORTFOLIO

PRODUCT · BACKEND · AI SYSTEMS

I turn operational problems into working software.

Over the past few months, I started from zero and completed nine website, AI and engineering workflow projects in collaboration with AI. I led the requirements, architecture, integration, validation and delivery across private AI, commerce, education, public data, mobility and legacy modernization.

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09built from zero in recent months
20Ysoftware delivery
E2Eproduct to production

SELECTED WORK

Built, tested and documented.

Each case was built from zero through AI-assisted collaboration and states the problem, my role, what shipped and the current delivery status.

01

ENTERPRISE LOCAL AI · INTERNAL WORKSPACE

Enterprise Local AI Workspace

A private AI workspace for finding, checking and tracing enterprise knowledge.

INTRANET ONLY

A private Local AI workspace for knowledge retrieval, document handling, development assistance and service validation. It keeps enterprise data inside the intranet while providing clear workflows for finding, checking and validating information.

OUTCOMEPrivate knowledge, engineering-assistance and service-validation workspace
Intranet deploymentMultiple AI work entry pointsLocal RAG and validation workflows
View role and delivered features

MY ROLE

Requirement breakdown, information architecture, retrieval and validation workflows, document governance, interface validation and deployment coordination.

WHAT SHIPPED

  • A refreshed AI workspace that brings together ISMS, OpenAB, Standup, Fara, document-processing and knowledge-service entry points
  • Hybrid vector and BM25 retrieval with streamed answers and source citations
  • Separate controlled and uncontrolled document boundaries
  • Live Confluence search and synchronized RAG knowledge base
  • Fara validation workspace with operational records and screenshot evidence
  • ISO 27001 audit workflow with batch execution and export
  • Code Review Agent and API Documentation Agent

STACK

Local AI · RAG · Hybrid Search · Confluence · Document AI

PRODUCT SCREENSHOTS

Platform overview
ISMS knowledge search
Confluence live search
Local AIRAGHybrid SearchConfluenceDocument AI
02

COMMERCE · CLOUDFLARE

Coffee Lab Commerce

An end-to-end coffee storefront built around how customers actually choose and reorder.

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A Cloudflare-based commerce experience covering product discovery, inventory, cart, membership and checkout, with PayUni payment integration and operational LINE notifications.

OUTCOMECloudflare commerce stack with payment and order operations
Cloudflare end to endPayUni payment flowLINE order notifications
View role and delivered features

MY ROLE

Product strategy, commerce flow, information architecture, Cloudflare architecture, payment and membership integration.

WHAT SHIPPED

  • Search, roast and category filters, sorting and a three-question bean selector
  • Multi-variant inventory, cart, free-shipping progress and checkout
  • Coffee recipe calculator based on cups, water and brewing method
  • Stored-value and bean plans, Google and LINE login, order history
  • Automatic LINE order notifications with an operations link

STACK

Cloudflare · E-commerce · PayUni · OAuth · Inventory

PRODUCT SCREENSHOTS

LINE order notification - public redacted version
CloudflareE-commercePayUniOAuthInventory
03

EDTECH · GENERATIVE AI

Summer Mission Island

A child-friendly summer learning system built as a place children want to revisit.

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Reading, exercise, mathematics, chores, English typing and creative work are organized through characters, maps, daily missions and visible progress.

OUTCOMEGamified learning and creative platform for children
Daily mission loopImage and voice creationChild-safe entry
View role and delivered features

MY ROLE

Learning experience, game loop, safety boundaries and generative feature planning.

WHAT SHIPPED

  • Daily missions, streaks, weekly stamps and badge collection
  • Three typing levels with pronunciation and finger guidance
  • Voice ideas, image generation, drawing and a student gallery
  • Focus tools, encouragement messages and parent notes
  • Separate student and parent entry with human verification

STACK

EdTech · AI Image · Voice · Gamification · Safety UX

EdTechAI ImageVoiceGamificationSafety UX
04

OPEN DATA · SEARCH

FINDTW

Public company data turned into a practical search and reference experience.

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A public-data product for finding Taiwan companies and organizations, understanding registration details and using small utility tools without needing to interpret raw government fields.

OUTCOMESearch, reference content and lightweight public-data tools
Company and tax-ID searchStructured detail pagesUtility tools
View role and delivered features

MY ROLE

Data-source definition, search experience, content structure, source disclosure and production deployment.

WHAT SHIPPED

  • Company name and tax-ID search with individual detail pages
  • Operational status, capital, address, incorporation date and source notes
  • For-profit and nonprofit identification, favorites and dark mode
  • Topic content for finance, AI, cloud and automation
  • Receipt lottery lookup with recent official results

STACK

Open Data · Search · SEO · Content · Utility

Open DataSearchSEOContentUtility
06

LEGACY MODERNIZATION

Large-Scale API Migration Framework

A controlled way to migrate 864 eligible APIs without losing behavior, evidence or review history.

INTERNAL ENGINEERING

Four legacy source modules are processed through isolated worktrees, API leases and multi-stage quality gates. The program is now converging on final closure and project completion.

OUTCOMETraceable migration and closure workflow for 864 eligible APIs
864-API scope4 isolated module streamsFinal closure stage
View role and delivered features

MY ROLE

Migration rules, scope control, source-of-truth policy, quality gates, review criteria and final verification.

WHAT SHIPPED

  • Scope fixed from 873 source APIs to 864 eligible remigrations
  • Independent worktrees, branches and API leases across four source modules
  • Source bundles, Level 0/1 DFDs, specification gates and implementation
  • Focused and full tests plus transaction, contract and caller checks
  • Two review rounds, quality manifest, comparison and closure report

STACK

.NET · PL/SQL · Pro*C · xUnit · Code Review

.NETPL/SQLPro*CxUnitCode Review
07

MOBILITY · PURE CLOUDFLARE PWA

Commute Pulse

A deploy-ready commute PWA for nearby stops, live arrivals and practical alert controls.

DEPLOY-READY · NOT PUBLIC

A Rust Worker and TypeScript PWA integrating TDX transit data with nearby stops, arrival boards, favorites, reminders, quiet hours and offline behavior.

OUTCOMEInstallable transit PWA with a background alert architecture
5/5 Rust testsCloudflare deploy dry-runD1, KV, Cron and Queues
View role and delivered features

MY ROLE

Product scenarios, data-state design, alert rules, platform architecture and validation.

WHAT SHIPPED

  • Nearby stops within 500 meters and a 20-second arrival refresh
  • Favorite stops, five recent searches, install prompt and offline state
  • Minute and remaining-stop alerts with pause, resume and quiet hours
  • Notification deduplication and next-vehicle rearming
  • Rust-to-Wasm, PWA build, D1 migrations and deployment dry-run

STACK

Rust · workers-rs · TypeScript · PWA · TDX · Cloudflare

Rustworkers-rsTypeScriptPWATDXCloudflare
08

ENGINEERING WORKFLOW

Frontend Delivery Skill

A repeatable path from ticket and specification to tested frontend delivery.

INTERNAL ENGINEERING

A reusable engineering workflow that reads Jira and Confluence requirements, preserves an existing Figma implementation, checks API and field conflicts, works in a safe branch and produces validation evidence.

OUTCOMEReusable repository and personal frontend delivery workflow
Validator passed4 synchronized copiesCommitted and pushed
View role and delivered features

MY ROLE

Input contract, specification priority, conflict checkpoints, branch safety, validation and handoff format.

WHAT SHIPPED

  • Jira-to-Confluence requirement resolution
  • Preservation of the existing Figma-based layout
  • API, field, document and code discrepancy checkpoints
  • Clean branch and worktree rules that protect existing changes
  • Traditional Chinese progress, test and handoff reporting

STACK

Jira · Confluence · Figma · Frontend · Workflow · Testing

JiraConfluenceFigmaFrontendWorkflowTesting
09

CONVERSATIONAL AI · MICROSOFT TEAMS

Teams Bot and OpenAB Integration

A practical path for bringing an enterprise AI agent into an existing Teams conversation.

FOUNDATION COMPLETE · TENANT ACCESS PENDING

A Node.js Bot foundation, local no-secret test mode, Azure Bot configuration review and an OpenAB self-hosted Gateway integration design. Production tenant integration remains dependent on App Registration credential permission.

OUTCOMELocally testable Teams Bot foundation ready for an OpenAB Gateway
Local health and message endpointsAzure Bot architecture verifiedOpenAB Gateway contract
View role and delivered features

MY ROLE

Bot architecture, Azure configuration review, local fallback, OpenAB endpoint design and single-tenant security boundaries.

WHAT SHIPPED

  • Node.js and Bot Framework local API with a health endpoint
  • Local test mode that starts without a Client Secret
  • Azure Bot Service, Direct Line, Web Chat and Teams channel review
  • OpenAB self-hosted Gateway integration through /webhook/teams
  • Single-tenant OAuth, allowed-tenant and personal-scope specification
  • Documented production prerequisites for secrets, HTTPS tunnel, manifest and admin approval

STACK

Microsoft Teams · Azure Bot · OpenAB · Node.js · Bot Framework

Microsoft TeamsAzure BotOpenABNode.jsBot Framework

ENGINEERING ACTIVITY

AI-assisted development activity

This record reflects sustained work across code analysis, implementation, testing and migration. It supports the engineering process shown in the case studies; it is not presented as a product outcome.

Recent AI-assisted engineering activity · Click to enlarge

RESUME

Eric Huang

Senior Backend / AI Engineer

Backend engineer with 20 years of experience in enterprise systems, databases and cloud delivery, now focused on private AI, engineering automation and legacy modernization.

EXPERIENCE20 years
FOCUSBackend · AI · Delivery
CLOUDAzure · AWS · Cloudflare
LANGUAGETOEIC 745

CORE SKILLS

.NET / C#, Java, SQL, APIs, RAG, Local AI, Azure, AWS, Cloudflare, Docker and CI/CD.

EDUCATION

B.S., Electrical Engineering, Minghsin University of Science and Technology.

CONTACT

Let's talk about the work.

ijbhxhu@gmail.com ↗