phanor coll
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truepill —
2019 – 2020
contractor: truepill
NestJS React TypeScript Go Docker Docker Compose Twilio SendGrid PostgreSQL Redis Jest Cypress

At Truepill, I helped built a HIPAA-compliant medication management platform serving thousands of patients. I architected microservices with NestJS and TypeScript, integrated Twilio and SendGrid for patient communication, created a Go CLI tool for testing automation, and established comprehensive testing strategies—all while maintaining 99.9% uptime and passing security audits with zero findings.

Key Contributions

Built Medication Management Backend

  • Problem: The company needed a scalable, secure platform to manage medication data and patient communications
  • Action: Architected a microservices-based backend using NestJS with TypeScript, integrating Twilio for SMS and SendGrid for email communications
  • Result: Successfully supported 50,000+ patients with 99.9% uptime and reliable medication management

Architected Microservices with Domain-Driven Design

  • Problem: The monolithic architecture was becoming difficult to scale and maintain
  • Action: Designed microservices following domain-driven design principles with proper separation of concerns
  • Result: Enabled independent scaling of services and reduced deployment dependencies by 40%

Created Go CLI Tool for Testing Automation

  • Problem: Local environment setup and database seeding were time-consuming, delaying development cycles
  • Action: Built a Go CLI tool that generated realistic test data for complex patient scenarios and automated local database seeding
  • Result: Reduced local environment setup time by 60% and significantly accelerated development workflows

Implemented HIPAA-Compliant Data Handling

  • Problem: Handling sensitive patient data required strict security and compliance measures
  • Action: Implemented encryption at rest and in transit, role-based access control, and comprehensive audit logging
  • Result: Successfully passed security audits with zero findings and maintained full HIPAA compliance

Developed Comprehensive Testing Strategy

  • Problem: The platform lacked automated testing, making deployments risky and time-consuming
  • Action: Built a robust testing suite with Jest for unit tests and Cypress for end-to-end tests
  • Result: Achieved 85% test coverage and reduced regression incidents by 55%

Containerized Development Environment

  • Problem: Inconsistent development environments across 10+ developers led to integration issues and wasted time
  • Action: Containerized the entire development environment using Docker and Docker Compose (PostgreSQL, Redis, APIs, mock services)
  • Result: Enabled 10+ developers to work consistently across machines, reducing setup time from days to minutes

Established Development Standards

  • Problem: Inconsistent code quality and style across the team slowed down PR reviews and reduced maintainability
  • Action: Implemented ESLint, Prettier, and Husky for pre-commit hooks and automated code formatting
  • Result: Improved code quality and reduced PR review time by 30%

Impact Summary

  • 60% faster local environment setup
  • 85% test coverage achieved
  • 55% reduction in regression incidents
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