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<!DOCTYPE html>
<html class="scroll-smooth" lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link href="dist/output.css" rel="stylesheet" />
<title>Wira Dhana Putra | Data & AI Portfolio</title>
</head>
<body class="overflow-x-hidden bg-white text-slate-700">
<!-- Header Start -->
<header class="bg-transparent left-0 w-full top-0 sticky z-50 shadow-sm border-b border-slate-200">
<div class="relative z-20 bg-white">
<div class="px-6 md:px-12 lg:container lg:mx-auto lg:px-6 lg:py-4">
<div class="flex items-center justify-between">
<div class="relative z-20">
<a href="#home">
<img src="dist/img/wira-high-resolution-logo-transparent.png" alt="logo-wira" class="w-14" />
</a>
</div>
<div class="flex items-center justify-end border-l lg:border-l-0">
<input type="checkbox" name="hamburger" id="hamburger" class="peer" hidden />
<label for="hamburger"
class="peer-checked:hamburger block relative z-20 p-6 -mr-6 cursor-pointer lg:hidden">
<div aria-hidden="true" class="m-auto h-0.5 w-6 rounded bg-red-900 transition duration-300"></div>
<div aria-hidden="true" class="m-auto mt-2 h-0.5 w-6 rounded bg-red-900 transition duration-300"></div>
</label>
<nav id="site-navigation" aria-label="Primary navigation"
class="font-semibold peer-checked:translate-x-0 fixed inset-0 w-[calc(100%-4.5rem)] translate-x-[-100%] bg-white border-r shadow-xl transition duration-300 lg:border-r-0 lg:w-auto lg:static lg:shadow-none lg:translate-x-0">
<div class="flex flex-col h-full justify-between lg:items-center lg:flex-row">
<ul class="px-6 pt-32 text-gray-700 space-y-8 md:px-12 lg:space-y-0 lg:flex lg:items-center lg:space-x-8 lg:pt-0">
<li>
<a href="#work"
class="group relative before:absolute before:inset-x-0 before:bottom-0 before:h-2 before:origin-right before:scale-x-0 before:bg-cyan-100 before:transition before:duration-200 hover:before:origin-left hover:before:scale-x-100">
<span class="relative text-cyan-800">Work</span>
</a>
</li>
<li>
<a href="#skills"
class="group relative before:absolute before:inset-x-0 before:bottom-0 before:h-2 before:origin-right before:scale-x-0 before:bg-cyan-100 before:transition before:duration-200 hover:before:origin-left hover:before:scale-x-100">
<span class="relative group-hover:text-cyan-800">Skills</span>
</a>
</li>
<li>
<a href="#experience"
class="group relative before:absolute before:inset-x-0 before:bottom-0 before:h-2 before:origin-right before:scale-x-0 before:bg-cyan-100 before:transition before:duration-200 hover:before:origin-left hover:before:scale-x-100">
<span class="relative group-hover:text-cyan-800">Experience</span>
</a>
</li>
<li>
<a href="#writing"
class="group relative before:absolute before:inset-x-0 before:bottom-0 before:h-2 before:origin-right before:scale-x-0 before:bg-cyan-100 before:transition before:duration-200 hover:before:origin-left hover:before:scale-x-100">
<span class="relative group-hover:text-cyan-800">Writing</span>
</a>
</li>
<li>
<a href="#about"
class="group relative before:absolute before:inset-x-0 before:bottom-0 before:h-2 before:origin-right before:scale-x-0 before:bg-cyan-100 before:transition before:duration-200 hover:before:origin-left hover:before:scale-x-100">
<span class="relative group-hover:text-cyan-800">About</span>
</a>
</li>
<li>
<a href="#contact"
class="group relative before:absolute before:inset-x-0 before:bottom-0 before:h-2 before:origin-right before:scale-x-0 before:bg-cyan-100 before:transition before:duration-200 hover:before:origin-left hover:before:scale-x-100">
<span class="relative group-hover:text-cyan-800">Contact</span>
</a>
</li>
</ul>
</div>
</nav>
</div>
</div>
</div>
</div>
</header>
<!-- Header End -->
<!-- Hero Section Star -->
<section id="home" class="pt-0 bg-cover">
<div class="w-full bg-center bg-bghome bg-cover md:bg-fixed">
<div class="flex items-center justify-center w-full bg-gray-900 bg-opacity-60 py-24 sm:py-32 lg:py-40">
<div class="w-full px-4 text-center">
<p class="text-gray-200 text-sm sm:text-base font-semibold uppercase tracking-wider">Wira Dhana Putra | Data & AI Portfolio</p>
<h1 class="max-w-4xl mx-auto mt-5 mb-5 text-3xl sm:text-4xl lg:text-5xl font-bold leading-tight text-gray-100">
Building practical data workflows, machine learning projects, and AI-assisted applications
</h1>
<p class="max-w-3xl mx-auto mb-8 text-base sm:text-lg text-gray-200 leading-relaxed">
I turn messy data and unclear business problems into structured analysis, reproducible workflows, and
deployed portfolio projects—with clear validation, transparent assumptions, and honest limitations
</p>
<div class="flex flex-col sm:flex-row sm:flex-wrap justify-center gap-3 sm:gap-4 px-4">
<a href="#work"
class="inline-flex w-full sm:w-auto items-center justify-center text-white font-semibold bg-teal-500 px-6 py-3 rounded-full hover:bg-teal-600 transition-all duration-300">View
Featured Projects</a>
<a href="#contact"
class="inline-flex w-full sm:w-auto items-center justify-center text-white font-semibold border border-white px-6 py-3 rounded-full hover:bg-white hover:text-slate-800 transition-all duration-300">Contact
Me</a>
</div>
</div>
</div>
</div>
</section>
<!-- Hero Section End -->
<!-- Featured Projects Section Start -->
<section id="work" class="py-20 sm:py-24 lg:py-28 bg-[#DDBC95]">
<div class="container">
<div class="w-full px-4 justify-center items-center">
<div class="max-w-2xl mx-auto text-center mb-12 sm:mb-16">
<h2 class="font-semibold text-3xl sm:text-4xl text-white uppercase mb-3">Featured Projects</h2>
<p class="font-normal text-base sm:text-lg text-slate-700">Selected work across analytics, data engineering, machine learning, and AI</p>
</div>
<div class="flex flex-col items-center xl:w-10/12 xl:mx-auto gap-8">
<!-- Start DataSentry AI -->
<article class="group relative flex w-full max-w-[48rem] flex-col md:flex-row overflow-hidden rounded-xl bg-white text-gray-700 shadow-md">
<div
class="relative w-full md:w-2/5 shrink-0 overflow-hidden bg-slate-100 text-slate-700 flex items-center justify-center min-h-48">
<span class="px-6 text-center font-semibold">DataSentry AI Preview</span>
</div>
<div class="flex flex-1 flex-col p-5 sm:p-6">
<div class="flex flex-wrap gap-2 mb-4">
<div
class="rounded-full bg-cyan-600 py-0.5 px-2 border border-transparent text-xs text-white transition-all shadow-sm text-center">
#DataQuality
</div>
<div
class="rounded-full bg-cyan-600 py-0.5 px-2 border border-transparent text-xs text-white transition-all shadow-sm text-center">
#AIEngineering
</div>
<div
class="rounded-full bg-cyan-600 py-0.5 px-2 border border-transparent text-xs text-white transition-all shadow-sm text-center">
#Streamlit
</div>
</div>
<h3 class="mb-2 block font-sans text-2xl font-semibold leading-snug tracking-normal text-blue-gray-900 antialiased">
DataSentry AI
</h3>
<p class="mb-2 text-sm font-semibold text-teal-700">Flagship AI/Data Quality Project</p>
<p class="mb-5 flex-1 block font-sans text-base font-normal leading-relaxed text-gray-700 antialiased line-clamp-3 group-hover:line-clamp-none">
A Gemini-powered data quality copilot that combines a deterministic Python audit engine with read-only
AI tool calling to help users inspect CSV datasets, calculate data quality scores, identify issues, and
understand remediation priorities through a Streamlit interface.
</p>
<div class="flex flex-wrap gap-3 mt-auto">
<a href="https://datasentry-ai.streamlit.app"
class="text-white font-semibold text-sm bg-teal-500 px-4 py-2 rounded-full hover:bg-teal-600 transition-all duration-300"
target="_blank" rel="noopener noreferrer">Live Demo</a>
<a href="https://github.com/wiradp/datasentry-ai"
class="inline-flex items-center justify-center text-slate-700 font-semibold text-sm border border-slate-300 px-4 py-2 rounded-full hover:border-teal-600 hover:text-teal-700 transition-all duration-300"
target="_blank" rel="noopener noreferrer">Repository</a>
</div>
</div>
</article>
<!-- End DataSentry AI -->
<!-- Start Web Scrape Laptop Analytics -->
<article class="group relative flex w-full max-w-[48rem] flex-col md:flex-row overflow-hidden rounded-xl bg-white text-gray-700 shadow-md">
<div
class="relative w-full md:w-2/5 shrink-0 overflow-hidden bg-slate-100 text-slate-700 flex items-center justify-center min-h-48">
<span class="px-6 text-center font-semibold">Laptop Analytics Preview</span>
</div>
<div class="flex flex-1 flex-col p-5 sm:p-6">
<div class="flex flex-wrap gap-2 mb-4">
<div
class="rounded-full bg-cyan-600 py-0.5 px-2 border border-transparent text-xs text-white transition-all shadow-sm text-center">
#DataEngineering
</div>
<div
class="rounded-full bg-cyan-600 py-0.5 px-2 border border-transparent text-xs text-white transition-all shadow-sm text-center">
#Analytics
</div>
<div
class="rounded-full bg-cyan-600 py-0.5 px-2 border border-transparent text-xs text-white transition-all shadow-sm text-center">
#Streamlit
</div>
</div>
<h3 class="mb-2 block font-sans text-2xl font-semibold leading-snug tracking-normal text-blue-gray-900 antialiased">
Web Scrape Laptop Analytics
</h3>
<p class="mb-2 text-sm font-semibold text-teal-700">Analytics & Data Engineering Project</p>
<p class="mb-5 flex-1 block font-sans text-base font-normal leading-relaxed text-gray-700 antialiased line-clamp-3 group-hover:line-clamp-none">
An automated laptop market data pipeline that scrapes marketplace listings, cleans messy product
specifications, tracks price changes with SCD Type 2 logic in SQLite, syncs processed data to
Supabase/PostgreSQL on a schedule, and serves insights through a Streamlit dashboard.
</p>
<div class="flex flex-wrap gap-3 mt-auto">
<a href="https://web-scrape-dashboard.streamlit.app"
class="text-white font-semibold text-sm bg-teal-500 px-4 py-2 rounded-full hover:bg-teal-600 transition-all duration-300"
target="_blank" rel="noopener noreferrer">Live Demo</a>
<a href="https://github.com/wiradp/web-scrape"
class="inline-flex items-center justify-center text-slate-700 font-semibold text-sm border border-slate-300 px-4 py-2 rounded-full hover:border-teal-600 hover:text-teal-700 transition-all duration-300"
target="_blank" rel="noopener noreferrer">Repository</a>
<a href="https://medium.com/@wiradp/engineering-a-robust-data-pipeline-to-track-laptop-prices-in-real-time-643bffe0e65a"
class="inline-flex items-center justify-center text-slate-700 font-semibold text-sm border border-slate-300 px-4 py-2 rounded-full hover:border-teal-600 hover:text-teal-700 transition-all duration-300"
target="_blank" rel="noopener noreferrer">Case Study</a>
</div>
</div>
</article>
<!-- End Web Scrape Laptop Analytics -->
<!-- Start CekFakta AI -->
<article class="group relative flex w-full max-w-[48rem] flex-col md:flex-row overflow-hidden rounded-xl bg-white text-gray-700 shadow-md">
<div
class="relative w-full md:w-2/5 shrink-0 overflow-hidden bg-slate-100 text-gray-700">
<img src="dist/img/hoax.png" alt="CekFakta AI interface preview"
class="h-48 md:h-full w-full object-cover hover:scale-110 transition-all duration-500" />
</div>
<div class="flex flex-1 flex-col p-5 sm:p-6">
<div class="flex flex-wrap gap-2 mb-4">
<div
class="rounded-full bg-cyan-600 py-0.5 px-2 border border-transparent text-xs text-white transition-all shadow-sm text-center">
#ArtificialIntelligence
</div>
<div
class="rounded-full bg-cyan-600 py-0.5 px-2 border border-transparent text-xs text-white transition-all shadow-sm text-center">
#Gemini
</div>
<div
class="rounded-full bg-cyan-600 py-0.5 px-2 border border-transparent text-xs text-white transition-all shadow-sm text-center">
#Multilingual
</div>
</div>
<h3 class="mb-2 block font-sans text-2xl font-semibold leading-snug tracking-normal text-blue-gray-900 antialiased">
CekFakta AI
</h3>
<p class="mb-2 text-sm font-semibold text-teal-700">Supporting AI Application</p>
<p class="mb-5 flex-1 block font-sans text-base font-normal leading-relaxed text-gray-700 antialiased line-clamp-3 group-hover:line-clamp-none">
A multilingual, Gemini-powered message risk analyzer for suspicious text. It flags potential scams,
hoaxes, and online gambling promotions while presenting AI-generated explanations as advisory signals
that do not replace independent source verification.
</p>
<div class="flex flex-wrap gap-3 mt-auto">
<a href="https://wiradp.github.io/chatbot-ai/"
class="text-white font-semibold text-sm bg-teal-500 px-4 py-2 rounded-full hover:bg-teal-600 transition-all duration-300"
target="_blank" rel="noopener noreferrer">Live Demo</a>
<a href="https://medium.com/@wiradp/chatbot-ai-azure-detecting-scams-hoaxes-gambling-promotions-8b2901293ccb"
class="inline-flex items-center justify-center text-slate-700 font-semibold text-sm border border-slate-300 px-4 py-2 rounded-full hover:border-teal-600 hover:text-teal-700 transition-all duration-300"
target="_blank" rel="noopener noreferrer">Case Study</a>
</div>
</div>
</article>
<!-- End CekFakta AI -->
<!-- Start Sales Conversion -->
<article
class="group relative flex w-full max-w-[48rem] flex-col md:flex-row overflow-hidden rounded-xl bg-white text-gray-700 shadow-md">
<!-- Bagian gambar -->
<div
class="relative w-full md:w-2/5 shrink-0 overflow-hidden bg-slate-100 text-gray-700">
<img src="dist/img/sales_conversion.png" alt="Sales Conversion dashboard preview"
class="h-48 md:h-full w-full object-cover hover:scale-110 transition-all duration-500" />
</div>
<!-- Bagian konten -->
<div class="flex flex-1 flex-col p-5 sm:p-6">
<div class="flex flex-wrap gap-2 mb-4">
<!-- #DataScience -->
<div
class="rounded-full bg-cyan-600 py-0.5 px-2 border border-transparent text-xs text-white transition-all shadow-sm text-center">
#DataScience
</div>
<!-- #MachineLearning -->
<div
class="rounded-full bg-cyan-600 py-0.5 px-2 border border-transparent text-xs text-white transition-all shadow-sm text-center">
#MachineLearning
</div>
<!-- Statistic for Business -->
</div>
<h3
class="mb-2 block font-sans text-2xl font-semibold leading-snug tracking-normal text-blue-gray-900 antialiased">
Sales Conversion
</h3>
<p class="mb-2 text-sm font-semibold text-teal-700">Business Analytics & Statistics Case Study</p>
<p
class="mb-5 flex-1 block font-sans text-base font-normal leading-relaxed text-gray-700 antialiased line-clamp-3 group-hover:line-clamp-none">
A business analytics case study using funnel analysis, segmentation, regression, and comparative
hypothesis testing to evaluate campaign performance and identify cost-efficiency patterns across
observed audience groups. Findings are associative and do not claim randomized or causal impact.
</p>
<div class="flex flex-wrap gap-3 mt-auto">
<a href="https://medium.com/@wiradp/data-driven-campaign-strategy-optimizing-funnel-conversion-and-targeting-for-maximum-roi-816fc1495810"
class="inline-flex items-center justify-center text-slate-700 font-semibold text-sm border border-slate-300 px-4 py-2 rounded-full hover:border-teal-600 hover:text-teal-700 transition-all duration-300"
target="_blank" rel="noopener noreferrer">Case Study</a>
</div>
</div>
</article>
<!-- End Sales Conversion -->
</div>
</div>
</div>
</section>
<!-- Featured Projects Section End -->
<!-- Technical Capabilities Section Start -->
<section id="skills" class="py-20 sm:py-24 lg:py-28">
<div class="container">
<div class="w-full">
<h2 class="text-center font-bold text-slate-800 px-4 mx-auto text-3xl sm:text-4xl mb-3">Technical Capabilities</h2>
<p class="text-center text-slate-600 px-4 mx-auto mb-10 max-w-3xl">Capabilities demonstrated through portfolio projects and prior business experience.</p>
<div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4 sm:gap-6 px-4 lg:w-10/12 lg:mx-auto">
<article class="rounded-xl border border-slate-200 bg-white p-5 shadow-sm">
<h3 class="font-semibold text-xl text-slate-800 mb-2">Data Analytics</h3>
<p class="text-slate-700 leading-relaxed">Exploratory analysis, funnel analysis, segmentation, regression, hypothesis testing, and business-focused interpretation.</p>
</article>
<article class="rounded-xl border border-slate-200 bg-white p-5 shadow-sm">
<h3 class="font-semibold text-xl text-slate-800 mb-2">Data Engineering</h3>
<p class="text-slate-700 leading-relaxed">Web scraping, ETL workflows, SQLite, Supabase/PostgreSQL, scheduled automation, and SCD Type 2 historical tracking.</p>
</article>
<article class="rounded-xl border border-slate-200 bg-white p-5 shadow-sm">
<h3 class="font-semibold text-xl text-slate-800 mb-2">Machine Learning</h3>
<p class="text-slate-700 leading-relaxed">Feature preparation, supervised modeling, evaluation, error analysis, and reproducible experiment workflows.</p>
</article>
<article class="rounded-xl border border-slate-200 bg-white p-5 shadow-sm">
<h3 class="font-semibold text-xl text-slate-800 mb-2">AI Engineering</h3>
<p class="text-slate-700 leading-relaxed">Gemini API integration, read-only tool-calling architecture, AI-assisted classification, and Streamlit-based AI interfaces.</p>
</article>
<article class="rounded-xl border border-slate-200 bg-white p-5 shadow-sm">
<h3 class="font-semibold text-xl text-slate-800 mb-2">Data Quality & Governance</h3>
<p class="text-slate-700 leading-relaxed">Deterministic data checks, quality scoring, issue prioritization, readiness assessment, and limitation-aware reporting.</p>
</article>
<article class="rounded-xl border border-slate-200 bg-white p-5 shadow-sm">
<h3 class="font-semibold text-xl text-slate-800 mb-2">Visualization & BI</h3>
<p class="text-slate-700 leading-relaxed">Streamlit dashboards, Power BI, Tableau, Excel, and clear communication of analytical findings.</p>
</article>
<article class="rounded-xl border border-slate-200 bg-white p-5 shadow-sm">
<h3 class="font-semibold text-xl text-slate-800 mb-2">Deployment & Software Engineering</h3>
<p class="text-slate-700 leading-relaxed">Python application structure, Git/GitHub workflows, automated validation, scheduled jobs, and deployed demos.</p>
</article>
</div>
</div>
</div>
</section>
<!-- Technical Capabilities Section End -->
<!-- Experience Section Start -->
<section id="experience" class="py-20 sm:py-24 lg:py-28 bg-slate-50">
<div class="container">
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<h2 class="font-bold text-black uppercase mb-3 text-3xl lg:text-4xl">Experience</h2>
<p class="font-normal text-base text-slate-700 leading-relaxed lg:text-xl">
Before moving deeper into Data and AI, I worked closely with operations, inventory control, reporting, and
process improvement. That experience taught me to look at problems not only from the data side, but also from
the business process behind the data.
<br /><br />
Today, I bring that practical mindset into data projects: cleaning messy data, building reliable workflows,
analyzing patterns, validating results, and communicating insights in a way that can support better decisions.
</p>
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</section>
<!-- Experience Section End -->
<!-- Selected Writing Section Start -->
<section id="writing" class="py-20 sm:py-24 lg:py-28 bg-[#DDBC95]">
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<div class="w-full px-4 lg:w-2/3 lg:mx-auto">
<h2 class="font-bold text-white uppercase mb-3 text-3xl lg:text-4xl">Selected Writing</h2>
<div class="space-y-6 mt-8">
<article class="bg-white rounded-xl border border-white p-5 sm:p-6 shadow-sm">
<h3 class="font-semibold text-xl text-slate-800">Engineering a Robust Laptop Data Pipeline</h3>
<p class="mt-2 text-slate-700">Article about an automated laptop price pipeline with scheduled refresh, historical tracking, and dashboard deployment.</p>
<a href="https://medium.com/@wiradp/engineering-a-robust-data-pipeline-to-track-laptop-prices-in-real-time-643bffe0e65a"
class="inline-block mt-3 text-teal-700 font-semibold hover:underline" target="_blank" rel="noopener noreferrer">Read on Medium</a>
</article>
<article class="bg-white rounded-xl border border-white p-5 sm:p-6 shadow-sm">
<h3 class="font-semibold text-xl text-slate-800">CekFakta AI: Detecting Scams, Hoaxes, and Gambling Promotions</h3>
<p class="mt-2 text-slate-700">Article about building an AI-assisted multilingual message risk analyzer and presenting its outputs with appropriate limitations.</p>
<a href="https://medium.com/@wiradp/chatbot-ai-azure-detecting-scams-hoaxes-gambling-promotions-8b2901293ccb"
class="inline-block mt-3 text-teal-700 font-semibold hover:underline" target="_blank" rel="noopener noreferrer">Read on Medium</a>
</article>
<article class="bg-white rounded-xl border border-white p-5 sm:p-6 shadow-sm">
<h3 class="font-semibold text-xl text-slate-800">Data-Driven Campaign Strategy and Funnel Analysis</h3>
<p class="mt-2 text-slate-700">Case study on funnel performance, audience segmentation, statistical comparison, and cost-efficiency patterns in observed groups.</p>
<a href="https://medium.com/@wiradp/data-driven-campaign-strategy-optimizing-funnel-conversion-and-targeting-for-maximum-roi-816fc1495810"
class="inline-block mt-3 text-teal-700 font-semibold hover:underline" target="_blank" rel="noopener noreferrer">Read on Medium</a>
</article>
</div>
</div>
</div>
</section>
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<h2 class="font-bold text-black uppercase mb-3 text-3xl lg:text-4xl">
About Me
</h2>
<h3 class="font-bold text-slate-800 mb-3 max-w-md text-xl md:text-2xl lg:text-3xl">
Combining Business Experience with Technical Execution
</h3>
<p
class="font-normal text-base mb-8 text-slate-700 leading-relaxed max-w-md sm:text-lg">
I combine business experience with technical execution across Data and AI. I turn unclear problems into
structured analysis and messy data into workflows that are easier to understand, test, and improve.
<br /><br />
My portfolio focuses on practical, end-to-end projects across analytics, machine learning, data quality,
and AI applications. The work emphasizes transparent assumptions, reproducible methods, clear validation,
and honest limitations.
</p>
<a href="https://www.linkedin.com/in/wira-dhana-putra/" target="_blank" title="Linkedin"
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<h3 class="font-bold text-slate-700 mx-auto text-xl mt-10 mb-3">
Let's make friends
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For professional opportunities and collaboration, connect through email or the profiles below.
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