Professional Experience
Senior Fullstack Developer
DaCodes
2023 - Present
Mexico City, Mexico
Node.js
MongoDB
Redis
Docker
AWS
TypeScript
ECS
React
Express
Stripe
SES
Sentry
New Relic
socket.io
- Designed fullstack solutions with React/Express for a 6+ year legacy system using modern patterns and best practices
- Led error reduction in legacy system, preventing customer churn through proactive stabilization
- Refactored critical modules with a team of 5 devs, reducing complexity and accelerating development time by 30%
- Optimized MongoDB clusters (M50 to M20) using indexes and Atlas Search, improving performance by up to 90% while reducing costs
- Reduced 6-year accumulated technical debt by identifying and fixing critical instability points
- Identified and resolved critical errors through combined analysis of Sentry, CloudWatch, New Relic, and MongoDB analytical queries
Senior Fullstack Developer
Kavak
2021 - 2022
Mexico City, Mexico
Angular
NestJS
MongoDB
Express.js
Lambda
DataDog
Gitlabs
Graphql
EDD
Sentry
S3
Netsuite
Salesforce
Jest
TypeORM
- Developed fullstack features in serverless architecture using Lambdas and GraphQL for logistics module within monorepo shared by 800+ developers
- Designed fullstack solutions using Angular (frontend) and NestJS/Express (backend) with TypeORM for multi-DB management (MongoDB, PostgreSQL, DynamoDB)
- As technical owner, led error reduction from 2% to 0.0006% (1/20k requests) for a team of 20 engineers
- Optimized testing time from 60 mins to 5 mins by resolving circular dependencies
- Implemented monitoring improvements with DataDog impacting 800+ developers
- Maintained key service stability with agile error response (30 min avg)
Fullstack Developer
Anepsa
2019 - 2021
Mexico City, Mexico
React
TypeScript
RxJS
SCSS
Webpack
Node.js
Express.js
MongoDB
redis
- Implemented complete MERN stack (MongoDB, Express.js, React, Node.js) with TypeScript for enterprise applications
- Developed frontend architecture with React, RxJS and Webpack for reactive data flows and efficient bundling
- Recovered legacy project valued at ~$400k pesos by reviving React/Express codebase considered unusable, preventing 12+ months of rewrite
- Optimized bulk import module reducing execution time from 60 to 2 minutes (97% less) through algorithmic restructuring
- Promoted to technical lead in 8 months; led solution design and critical issue resolution for development team
- Reduced technical debt through continuous refactoring, enabling implementation of 20+ requested features
Freelance Developer
2017 - 2019
Mexico City, Mexico
PHP
Java
MySQL
JavaScript
HTML5
CSS3
AngularJS
- Developed condominium management system with PDF generation, email notifications and document management (Java + PHP + MySQL)
- Implemented critical features: PDF generation, inventory control, and business rules engine
- Built customized POS and inventory system for pharmacy that reduced 'inventory shrinkage' through precise stock control
- Designed pricing engine for advertising company based on complex business rules (PHP + MySQL)
- Developed framework-less backend solutions maintaining clean and scalable architecture
Technologies & Skills
Backend
Node.js
NestJS
Express.js
TypeScript
JavaScript
Python
PHP
TypeORM
Frontend
Angular
React
TypeScript
RxJS
HTML5
CSS3
SCSS
Data Base
PostgreSQL
MongoDB (Atlas Search, Performance Tuning)
Redis
MySQL
Cloud
AWS Lambda
SES
S3
ECS
EC2
SQS
SNS
API Gateway
CloudWatch
Tools
Git
Jest
Swagger
Postman
Jira
Webpack
Sentry
DataDog
Posthog
Stripe
GraphQL
Security
Email Security, SPF, DKIM, DMARC)
Rate Limiting
CORS
JWT
HTTPS
SSL
SQL Injection
Architecture
Web Sockets
MVC
Jamstack
EDD
TDD
Web Hooks
Interested in collaborating?
I'm always open to new opportunities and challenging projects. If you're looking for an experienced fullstack developer for your team, let's talk!
Send me a message
Tell me about your project or opportunity