AI ENGINEER · KUALA LUMPURPORTFOLIO / 2026

Hello — I'm Kelvin.



AI & software engineer building RAG systems, intelligent products and production-grade platforms — without making technology feel boring.

  • Semantic search
  • Agentic AI
  • Platform engineering
  • Full-stack products
  • Cloud & DevOps
  • Computer vision

Selected work

Projects that solve real problems.

Each one built end to end, from problem framing and system design to production and iteration. Open a card for the full case study.

Semantic search

Semantic API Discovery Platform

Semantic search system enabling developers to find API documentation by intent rather than exact keywords, with retrieval, reranking and grounded recommendations working as one experience.

FastAPIMongoDBChromaDBGPT-4o
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RAG assistant

GPT-Powered Internal Chatbot with RAG

A retrieval-augmented internal assistant combining document search, LLM generation and source-grounded responses for faster knowledge access.

LangChainChromaDBGPT-4FastAPI
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Production web

Production Web Development & SEO

Two production websites designed, deployed and optimized for discoverability, combining thoughtful UI, static delivery and practical CI/CD.

Next.jsCloudflareCI/CDSEO
Read case study
Production web development project preview
Computer vision

Early-Stage Disease Detection via Computer Vision

A computer-vision research system using an ensemble of pretrained neural networks to classify disease indicators from fingernail images.

PyTorchXGBoostCNNPython
Read case study
NailHealth computer vision disease detection application preview

Under the hood

How the systems actually work.

Pick a project, then press play to watch a real request travel through it. Hover or tab to any box to see what it does.

request pathindexing / build

Swipe sideways to explore the diagram →

Semantic API Discovery architectureStartload catalogueMongoDBreplica setchange streams onOpenAI embeddingstext-embedding-3-largeChromaDBvector storesimilarity top_k = 25Developer“find me auth APIs”Redisresponse cache · 10 minHF reranker25 candidates → top 5GPT-4orecommend + justify
OVERVIEW

Index once, then answer every query with retrieval, reranking and a grounded recommendation.

What I actually build

Capabilities that create impact.

Tools change quickly. The useful part is knowing how to combine them into systems that solve the right problem and remain maintainable after launch.

Applied AI

Designing practical AI systems with retrieval, LLM orchestration, embeddings, reranking and evaluation in the loop.

Built semantic API discovery and grounded internal knowledge systems.

Tap a tag to search my work for it ↑View related work

Platform Engineering

Building integration-heavy systems, APIs and backend services that stay understandable as the surrounding platform grows.

Enterprise integration, event-driven systems and API platform ownership.

Tap a tag to search my work for it ↑View related work

Product Engineering

Taking ideas from rough requirements to polished full-stack products with strong UX and maintainable implementation.

Production websites and internal tools delivered end to end.

Tap a tag to search my work for it ↑View related work

Cloud & DevOps

Shipping reliable systems with static delivery, CI/CD, containers and cloud infrastructure that keeps operations simple.

Cloudflare deployment, GitHub Actions and containerized services.

Tap a tag to search my work for it ↑View related work

04 / EXPERIENCE JOURNEY

A journey of growth and purpose.

From enterprise platforms to agentic AI, each role added a new layer — systems thinking, product delivery, architecture and applied intelligence.

DHL IT Services · AI Engineer (Software Engineer Analyst)

  1. Jun 2026 – PresentNOW

    DHL IT Services

    AI Engineer (Software Engineer Analyst)

    CURRENT FOCUS

    Designing and validating agentic AI systems that turn emerging AI capabilities into reliable operational solutions for DHL IT Services.

    • Developed agentic AI solutions to enhance operational efficiency within DHL IT Services.
    • Planned and resolved architectural designs for AI projects, ensuring robust implementation.
    • Conducted proof of concepts using the latest AI technologies to validate innovative approaches.
  2. Jul 2025 – Apr 2026

    Maybank

    Solution Engineer

    • Led internal R&D work to validate AI integration opportunities across the enterprise.
    • Served as PIC of a mission-critical API portal and built AI-driven platform improvements.
  3. Feb 2025 – Jul 2025

    Maybank

    Enterprise Integration Platform Developer

    • Developed and supported enterprise integration solutions using IBM tooling.
    • Delivered platform work under tight production timelines.
  4. Feb 2025 – May 2025

    M.S. Wong & Co

    Web Developer

    • Built and launched a business-facing web platform and public site.
    • Improved workflows and client-facing digital experience.
  5. Nov 2024 – Jan 2025

    Philip Morris International

    Data Analyst & QA Tester

    • Used Python for large-scale data cleaning, migration and analysis.
    • Executed UAT and managed corporate web properties with AEM.
  6. Aug 2023 – Nov 2023

    FINEXUS Sdn. Bhd.

    Software Engineer Intern

    • Built distributed software using Akka, Kafka and FastAPI.
    • Designed a reusable Kafka Java library for the R&D team.
  7. Aug 2022 – Mar 2023

    Studio Twenty Sdn. Bhd.

    Freelance Back-End Developer

    • Developed a sponsorship management dashboard for Care Channel International.
    • Integrated payment functionality for an e-commerce platform.
  8. May 2022 – Jul 2022

    Studio Twenty Sdn. Bhd.

    Back-End Developer Intern

    • Worked with React, Node.js, MongoDB and REST APIs on production projects.

05 / ABOUT ME

Curious builder. Problem solver. Always evolving.

BASED IN

Kuala Lumpur, Malaysia

LANGUAGES

English · Mandarin · Malay

WORKING STYLE

Curious, structured, iterative

FOCUS

Useful AI, not AI for show

Wong Kai Wey (Kelvin) standing in a snowy park
Kelvin, somewhere cold
KL basedEN · 中文 · BMdrag me

I enjoy turning complex problems into simple, deliberate systems that make a real difference — especially where software engineering and applied AI meet.

My background spans enterprise integration, RAG systems, computer vision and full-stack product work. The common thread is understanding the system deeply enough to make the solution feel straightforward.

06 / LET'S BUILD SOMETHING GREAT

If you're building something ambitious, solving a messy systems problem, or exploring where applied AI genuinely helps, I'd be happy to talk.

kaiwey6160@gmail.com
KW°© 2026 Wong Kai Weypsst, type “kelv” anywhere