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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Hsi-Teng (Sean) Liu - Senior Software Developer</title>
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
line-height: 1.6;
color: #333;
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
min-height: 100vh;
}
.container {
max-width: 1200px;
margin: 0 auto;
padding: 0 20px;
}
header {
background: rgba(255, 255, 255, 0.95);
backdrop-filter: blur(10px);
position: fixed;
width: 100%;
top: 0;
z-index: 1000;
box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}
nav {
display: flex;
justify-content: space-between;
align-items: center;
padding: 1rem 0;
}
.logo {
font-size: 1.5rem;
font-weight: bold;
color: #667eea;
}
.nav-links {
display: flex;
list-style: none;
gap: 2rem;
}
.nav-links a {
text-decoration: none;
color: #333;
font-weight: 500;
transition: color 0.3s;
}
.nav-links a:hover {
color: #667eea;
}
main {
margin-top: 80px;
}
.hero {
background: linear-gradient(135deg, rgba(102, 126, 234, 0.9) 0%, rgba(118, 75, 162, 0.9) 100%);
color: white;
padding: 100px 0;
text-align: center;
}
.hero h1 {
font-size: 3.5rem;
margin-bottom: 1rem;
text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}
.hero p {
font-size: 1.3rem;
margin-bottom: 2rem;
opacity: 0.9;
}
.cta-button {
display: inline-block;
background: #ff6b6b;
color: white;
padding: 15px 30px;
text-decoration: none;
border-radius: 50px;
font-weight: bold;
transition: transform 0.3s, box-shadow 0.3s;
}
.cta-button:hover {
transform: translateY(-3px);
box-shadow: 0 10px 20px rgba(255, 107, 107, 0.4);
}
.section {
padding: 80px 0;
background: white;
}
.section:nth-child(even) {
background: #f8f9fa;
}
.section h2 {
text-align: center;
font-size: 2.5rem;
margin-bottom: 3rem;
color: #333;
}
.about-grid {
display: grid;
grid-template-columns: 1fr 2fr;
gap: 4rem;
align-items: center;
}
.about-text {
font-size: 1.1rem;
line-height: 1.8;
}
.highlight-box {
background: linear-gradient(135deg, #667eea, #764ba2);
color: white;
padding: 2rem;
border-radius: 15px;
box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}
.projects-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
gap: 2rem;
margin-top: 2rem;
}
.project-card {
background: white;
padding: 2rem;
border-radius: 15px;
box-shadow: 0 10px 30px rgba(0,0,0,0.1);
transition: transform 0.3s, box-shadow 0.3s;
border: 1px solid #e9ecef;
}
.project-card:hover {
transform: translateY(-10px);
box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}
.project-card h3 {
color: #667eea;
margin-bottom: 1rem;
font-size: 1.3rem;
}
.project-card p {
margin-bottom: 1rem;
color: #666;
}
.tech-stack {
display: flex;
flex-wrap: wrap;
gap: 0.5rem;
margin-top: 1rem;
}
.tech-tag {
background: #667eea;
color: white;
padding: 0.3rem 0.8rem;
border-radius: 20px;
font-size: 0.9rem;
}
.skills-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
gap: 2rem;
margin-top: 2rem;
}
.skill-category {
background: white;
padding: 2rem;
border-radius: 15px;
box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}
.skill-category h3 {
color: #667eea;
margin-bottom: 1rem;
text-align: center;
}
.skill-list {
list-style: none;
text-align: center;
}
.skill-list li {
margin-bottom: 0.5rem;
padding: 0.5rem;
background: #f8f9fa;
border-radius: 5px;
}
.timeline {
position: relative;
max-width: 800px;
margin: 0 auto;
}
.timeline::after {
content: '';
position: absolute;
width: 4px;
background: #667eea;
top: 0;
bottom: 0;
left: 50%;
margin-left: -2px;
}
.timeline-item {
padding: 10px 40px;
position: relative;
background: inherit;
width: 50%;
}
.timeline-item::after {
content: '';
position: absolute;
width: 20px;
height: 20px;
right: -10px;
background: #667eea;
border: 4px solid white;
top: 15px;
border-radius: 50%;
z-index: 1;
}
.timeline-item:nth-child(even) {
left: 50%;
}
.timeline-item:nth-child(even)::after {
left: -10px;
}
.timeline-content {
padding: 20px 30px;
background: white;
position: relative;
border-radius: 10px;
box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}
.timeline-content h3 {
color: #667eea;
margin-bottom: 0.5rem;
}
.timeline-content h4 {
color: #666;
margin-bottom: 1rem;
font-weight: normal;
font-style: italic;
}
.contact-info {
text-align: center;
max-width: 600px;
margin: 0 auto;
}
.contact-item {
display: inline-block;
margin: 1rem 2rem;
padding: 1rem;
background: white;
border-radius: 10px;
box-shadow: 0 5px 15px rgba(0,0,0,0.1);
transition: transform 0.3s;
}
.contact-item:hover {
transform: translateY(-5px);
}
footer {
background: #333;
color: white;
text-align: center;
padding: 2rem 0;
}
@media (max-width: 768px) {
.hero h1 {
font-size: 2.5rem;
}
.about-grid {
grid-template-columns: 1fr;
gap: 2rem;
}
.nav-links {
display: none;
}
.timeline::after {
left: 31px;
}
.timeline-item {
width: 100%;
padding-left: 70px;
padding-right: 25px;
}
.timeline-item::after {
left: 21px;
}
.timeline-item:nth-child(even) {
left: 0%;
}
}
.fade-in {
opacity: 0;
transform: translateY(30px);
transition: opacity 0.6s, transform 0.6s;
}
.fade-in.visible {
opacity: 1;
transform: translateY(0);
}
</style>
</head>
<body>
<header>
<div class="container">
<nav>
<div class="logo">Sean Liu</div>
<ul class="nav-links">
<li><a href="#about">About</a></li>
<li><a href="#projects">Projects</a></li>
<li><a href="#skills">Skills</a></li>
<li><a href="#experience">Experience</a></li>
<li><a href="#contact">Contact</a></li>
</ul>
</nav>
</div>
</header>
<main>
<section class="hero">
<div class="container">
<h1>Hsi-Teng (Sean) Liu</h1>
<p>Senior Software Developer & AI Solutions Architect</p>
<a href="#contact" class="cta-button">Get In Touch</a>
</div>
</section>
<section id="about" class="section">
<div class="container">
<h2>About Me</h2>
<div class="about-grid">
<div class="highlight-box">
<h3>Currently Studying</h3>
<p><strong>Applied A.I. Solutions Development</strong><br>
Graduate Certificate Program<br>
George Brown College<br>
Jan 2025 - Dec 2025</p>
<h3 style="margin-top: 2rem;">Education</h3>
<p><strong>Computer Science, B.S.</strong><br>
Rensselaer Polytechnic Institute<br>
Troy NY, USA</p>
</div>
<div class="about-text">
<p>Experienced software developer with over 20 years of expertise in system integration and enterprise solutions. Currently expanding my skillset with AI solutions development to provide meaningful contributions to AI-integrated systems.</p>
<p>I specialize in designing and implementing complex messaging services, chatbot systems, and secure financial applications for major banks in Taiwan. My experience spans from full-stack development to system architecture, with a strong focus on scalable, secure solutions.</p>
<p>Based in Toronto, ON, I'm seeking senior developer roles where I can leverage my extensive background in system integration and growing expertise in AI solutions.</p>
</div>
</div>
</div>
</section>
<section id="projects" class="section">
<div class="container">
<h2>Key Projects</h2>
<div class="projects-grid">
<div class="project-card fade-in">
<h3>Apple Messages for Business Integration</h3>
<p>Designed and implemented messaging service integration with Apple Messages for Business for a major bank in Taiwan, enabling seamless customer communication through Apple's business messaging platform.</p>
<div class="tech-stack">
<span class="tech-tag">FastAPI</span>
<span class="tech-tag">Python</span>
<span class="tech-tag">Banking Integration</span>
</div>
</div>
<div class="project-card fade-in">
<h3>State Machine Chatbot System</h3>
<p>Created a configurable state machine-based chatbot backend supporting messaging services connected to LINE Messaging for multiple banks in Taiwan, minimizing code changes through configuration.</p>
<div class="tech-stack">
<span class="tech-tag">.NET Web API</span>
<span class="tech-tag">C#</span>
<span class="tech-tag">State Machine</span>
<span class="tech-tag">LINE API</span>
</div>
</div>
<div class="project-card fade-in">
<h3>Salesforce Marketing Cloud Custom Activity</h3>
<p>Designed and implemented a custom activity and backend for Salesforce Marketing Cloud Journey that sends custom push messages for a bank in Taiwan.</p>
<div class="tech-stack">
<span class="tech-tag">F#</span>
<span class="tech-tag">React</span>
<span class="tech-tag">Salesforce</span>
<span class="tech-tag">Marketing Cloud</span>
</div>
</div>
<div class="project-card fade-in">
<h3>Secure PII Handling System</h3>
<p>Developed on-premise backend service and Salesforce Lightning Web Components to ensure secure PII data handling on Salesforce platform for banking clients.</p>
<div class="tech-stack">
<span class="tech-tag">Salesforce LWC</span>
<span class="tech-tag">Security</span>
<span class="tech-tag">PII Protection</span>
<span class="tech-tag">On-Premise</span>
</div>
</div>
<div class="project-card fade-in">
<h3>Real-time Messaging Service</h3>
<p>Built LINE messaging pushing Windows service that receives requests via Kafka for high-throughput message processing and delivery.</p>
<div class="tech-stack">
<span class="tech-tag">C#</span>
<span class="tech-tag">Kafka</span>
<span class="tech-tag">Windows Service</span>
<span class="tech-tag">Real-time Processing</span>
</div>
</div>
<div class="project-card fade-in">
<h3>AWS Data Archival System</h3>
<p>Implemented daily archive system for customer messages to AWS S3 Glacier, ensuring long-term data retention and compliance for banking clients.</p>
<div class="tech-stack">
<span class="tech-tag">AWS S3 Glacier</span>
<span class="tech-tag">Data Archival</span>
<span class="tech-tag">Automation</span>
<span class="tech-tag">Compliance</span>
</div>
</div>
</div>
</div>
</section>
<section id="skills" class="section">
<div class="container">
<h2>Technical Skills</h2>
<div class="skills-grid">
<div class="skill-category fade-in">
<h3>Programming Languages</h3>
<ul class="skill-list">
<li>C#</li>
<li>Python</li>
<li>JavaScript</li>
<li>F#</li>
<li>Java</li>
</ul>
</div>
<div class="skill-category fade-in">
<h3>Frameworks</h3>
<ul class="skill-list">
<li>FastAPI</li>
<li>Flask</li>
<li>.NET Web API</li>
<li>React</li>
<li>ASP.NET MVC</li>
</ul>
</div>
<div class="skill-category fade-in">
<h3>Libraries & Tools</h3>
<ul class="skill-list">
<li>SQLAlchemy</li>
<li>Scikit-Learn</li>
<li>Pandas</li>
<li>Jupyter Notebook</li>
</ul>
</div>
<div class="skill-category fade-in">
<h3>Infrastructure</h3>
<ul class="skill-list">
<li>Kafka</li>
<li>RabbitMQ</li>
<li>Redis</li>
<li>AWS S3 Glacier</li>
<li>MS SQL Server</li>
</ul>
</div>
</div>
</div>
</section>
<section id="experience" class="section">
<div class="container">
<h2>Professional Experience</h2>
<div class="timeline">
<div class="timeline-item fade-in">
<div class="timeline-content">
<h3>Technical Director</h3>
<h4>Gump Technology, Taipei Taiwan | Oct 2017 - Present</h4>
<p>Leading development of messaging services, chatbot systems, and Salesforce integrations for major banks in Taiwan. Specializing in secure, scalable solutions for financial services.</p>
</div>
</div>
<div class="timeline-item fade-in">
<div class="timeline-content">
<h3>Assistant Vice President</h3>
<h4>Ezfunds Securities Investment, Taipei Taiwan | Jul 2010 - Sep 2017</h4>
<p>Led migration of mutual fund trading platform to ASP.NET MVC, managed team of 5 developing native mobile apps, and designed systems interfacing with Taiwan's Department of Treasury.</p>
</div>
</div>
<div class="timeline-item fade-in">
<div class="timeline-content">
<h3>Manager of Information Technology</h3>
<h4>Chunghwa United Telecom Group, Taipei Taiwan | Apr 2007 - Aug 2008</h4>
<p>Designed and implemented video streaming platform from scratch and developed news website using Java and JBoss Seam technologies.</p>
</div>
</div>
<div class="timeline-item fade-in">
<div class="timeline-content">
<h3>Team Lead</h3>
<h4>Blue Technologies, Taipei Taiwan | Nov 2005 - Mar 2007</h4>
<p>Led small team designing and implementing Java-based solutions for clients while training colleagues on new technologies.</p>
</div>
</div>
</div>
</div>
</section>
<section id="contact" class="section">
<div class="container">
<h2>Let's Connect</h2>
<div class="contact-info">
<div class="contact-item fade-in">
<h3>Email</h3>
<p>Hsi-Teng.Liu@georgebrown.ca</p>
</div>
<div class="contact-item fade-in">
<h3>Phone</h3>
<p>(437) 875-4356</p>
</div>
<div class="contact-item fade-in">
<h3>Location</h3>
<p>Toronto, ON, Canada</p>
</div>
</div>
</div>
</section>
</main>
<footer>
<div class="container">
<p>© 2025 Hsi-Teng (Sean) Liu. All rights reserved.</p>
</div>
</footer>
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