<h3>Team Size</h3>
<ul>
<li>Project Manager: 1</li>
<li>Designer: 1</li>
<li>Backend Developer: 2</li>
<li>Frontend Developers: 2</li>
</ul>
<h3>Responsibilities</h3>
<ul>
<li>Lead Developer (2 Frontend, 2 Backend)</li>
<li>Designed and developed the app’s API server architecture using AWS EC2 and RDS (100%)</li>
<li>Managed scheduled tasks required for the service using AWS ECR and ECS (100%)</li>
<li>Designed a CI/CD pipeline using GitHub Actions and Docker images (100%)</li>
<li>Designed and validated API flow test scenarios using Postman (100%)</li>
<li>Designed database structures for service operation (50%)</li>
<li>Designed and developed APIs for user/staff apps and the admin web platform (30%)</li>
</ul>
<h3>Server Architecture</h3>
<img src="/images/project_16/figure_1.png" alt="Project Screenshot" style="max-width:100%; height:auto; border-radius:12px; display:block; margin:auto;" />
<h3>Service Flow Chart</h3>
<h4>Before Visit [Estimate Request]</h4>
<img src="/images/project_16/figure_2.png" alt="Project Screenshot" style="max-width:100%; height:auto; border-radius:12px; display:block; margin:auto;" />
<h3>After Visit [Estimate Delivery &#x26; Matching]</h3>
<img src="/images/project_16/figure_3.png" alt="Project Screenshot" style="max-width:100%; height:auto; border-radius:12px; display:block; margin:auto;" />
<h3>After [Full Space Organization] Completed</h3>
<img src="/images/project_16/figure_4.png" alt="Project Screenshot" style="max-width:100%; height:auto; border-radius:12px; display:block; margin:auto;" />
<h3>App Screenshots</h3>
<table>
  <tr>
    <td style="vertical-align: top;">
      <img src="/images/project_16/figure_5.png" alt="Project Screenshot" style="max-width:300px; height:100%; border-radius:12px; display:block; margin:auto;">
    </td>
    <td style="vertical-align: top;">
      <img src="/images/project_16/figure_6.png" alt="Project Screenshot" style="max-width:300px; height:100%; border-radius:12px; display:block; margin:auto;">
    </td>
    <td style="vertical-align: top;">
      <img src="/images/project_16/figure_7.png" alt="Project Screenshot" style="max-width:300px; height:100%; border-radius:12px; display:block; margin:auto;">
    </td>
  </tr>
</table>
<h3>Admin Screenshots</h3>
<img src="/images/project_16/figure_8.png" alt="Project Screenshot" style="max-width:100%; height:auto; border-radius:12px; display:block; margin:auto;" />


As the Lead Developer for 'TtokTtok 365', a new platform for home organization and housekeeping, I designed and built the entire API server architecture from the ground up. I implemented a scalable system on AWS using EC2, RDS, and ECS, configured a Blue-Green deployment strategy for high availability, and established a CI/CD pipeline with GitHub Actions and Docker to streamline development.

Led the backend development of a NestJS-based API server for a home services platform, architecting a scalable, high-availability AWS infrastructure.

API Server Development

A platform that connects users with professional home organizers and housekeeping specialists.  It mainly serves households preparing for relocation or those who have limited time for housekeeping due to childcare or dual-income lifestyles.

Home organization and housekeeping service matching platform app