Software Engineer
Development and maintenance of CRM systems and online ticketing platform, AWS SES integrations, e-invoicing, and reporting.
Technologies Used
NestJs
Express
React
AngularJS
PostgresSQL
mariaDB
AWS
Docker
N8NDetailed Description
**Cosmocable CRM (https://cosmocable.mx/)**
Implemented a fully integrated e-invoicing system into the CRM, enabling fast and efficient billing.
Developed a self-invoicing module for customers directly from the web portal, streamlining processes and reducing operational workload.
Implemented an email delivery service using AWS SES and NodeMailer to automatically send invoices, payment notices, and tickets.
**TaquillaVIP (https://taquillavip.com/) and white-label Universal Tickets (https://universalticket.com.mx/)**
Led the technology migration to NestJS and ReactJS with TypeScript, taking on roles as project lead, software architect, and full-stack developer.
Designed and developed mainly the backend, implementing secure and scalable APIs.
Built key interfaces for event management, integrating full ticket sales flows.
Generated PDF and Excel sales reports for real-time monitoring.
Integrated AWS SES and S3 for email and file storage, white-label support, and OpenPay payment processing.
Responsibilities
- API development in Node.js, Express, and NestJS.
- Data modeling and SQL queries in MariaDB and PostgreSQL.
- Notification automation and email delivery with AWS SES and NodeMailer.
- Interface design and development in Angular and React.
- Technical leadership, architecture definition, and team coordination.
Key Achievements
- Implemented an efficient e-invoicing system with self-invoicing in Cosmocable.
- Automated invoice, payment notice, and ticket email delivery.
- Successfully migrated TaquillaVIP to NestJS and ReactJS.
- Implemented white-label support for multiple portals.
- Developed real-time PDF/Excel sales reports for event management.