Privy Customization: Digital Document Center (DDC)

Role: Back-End Engineer
Duration: 6 months

The Digital Document Center (DDC) is a comprehensive dashboard to streamline and monitor document lifecycle activities, including upload, distribution (blast), approval, rejection, and electronic signing (both standard and with e-Meterai). This system is seamlessly integrated with Privy, allowing secure and compliant digital signature capabilities.

Tech Stack

• Backend Framework: Ruby on Rails (leveraging Grape API for robust API endpoints)
• Database: PostgreSQL
• CI/CD & Orchestration: Jenkins, Docker
• APM: Sentry

Contributions

• Implemented a feature for signing documents with custom QR codes using the HexaPDF library.
• Developed a top-up or transfer balance API, integrated with two internal systems related to invoicing and warehousing process (e.g., Portal and Sales).
• Built a user management system with 3-level main hierarchical access (Area, Branch, Department), supporting 340+ enterprise users and 250+ departments.

  

  Illustration 1. User hierarchy

Capabilities Demonstrated

• Quickly adapted to a legacy codebase written in Ruby, a new programming language at the time.
• Proactively aligned all new features and improvements with the existing code patterns and architecture.
• Proficient in building RESTful APIs using Ruby on Rails and Grape API (micro-framework).
• Experienced in integrating third-party services (e.g., e-materai and digital signatures with Privy).
• Strong understanding of enterprise user management and multi-level permission systems.
• Familiar with CI/CD pipelines and container orchestration using Jenkins and Docker.

Documentation

Capture 1. Document Ongoing

Capture 2. Document Completed

Capture 3. Document Completed Preview

Capture 4. Document Void & Reject

Capture 5. Balance Transfer

Capture 6. Balance Top-Up

Capture 7. User Setting

Capture 8. HTTP Logs

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