Work Experience
GPT4Sales
Senior Backend Engineer• 🚀 Architected and scaled WhatsApp chatbot platform from zero to 4,000 daily active users by designing a robust multi-tenant handler with Express + Baileys API
• ⚡ Slashed deployment downtime by 95% (10 min → 30s) through implementing rolling updates in Kubernetes with zero-downtime strategies
• 💰 Drove 22% MRR growth by building a comprehensive Stripe billing engine supporting subscriptions, add-ons, and automated proration—eliminating manual billing errors
• 🤖 Pioneered AI-powered voice agent using Twilio + OpenAI Realtime API + ElevenLabs voices to automate cold calling and lead qualification for sales teams
• 🔌 Enhanced platform reliability by architecting a Singleton Socket Manager that guarantees real-time message delivery while providing critical analytics on socket health and performance
Ammper
Python Backend Developer• ☁️ Spearheaded complete serverless migration of analytics reporting module to AWS Lambda, delivering scalable weekly and monthly reports consolidated from multiple data sources
• ⚡ Achieved 5-6x performance boost by refactoring Python data pipelines with Polars—slashing execution time from 30-40s to just 6-13s under production load
• 📊 Engineered dedicated Lambda function for automated Excel report generation and S3-based distribution, serving business intelligence teams with real-time insights
• 🔄 Built end-to-end data ingestion automation pipeline that transforms raw data into consumable datasets, eliminating manual ETL processes
• 🏗️ Implemented production-grade Infrastructure as Code using Serverless Framework—orchestrating IAM permissions, CloudWatch monitoring, cron scheduling, and SQS-based decoupled processing for enterprise reliability
Oxford Education
Python Developer• 🎯 Transformed Django reporting pipeline through strategic refactoring—achieving 25% reduction in query execution times and unlocking capacity for twice-daily report generation
• 📱 Engineered mobile-first drag-and-drop interface component in vanilla JavaScript, boosting student task completion rate by 30% and significantly improving user engagement metrics
• ⚙️ Optimized database queries and implemented efficient caching strategies in PostgreSQL, enabling the platform to scale to support thousands of concurrent students
TreceSoftware
Backend Engineer• 🏡 Led complete backend architecture and development of enterprise-grade US real estate CRM platform serving property management companies and realtors
• 🏗️ Architected robust NestJS + PostgreSQL solution applying Clean Architecture and Domain-Driven Design principles—slashing maintenance effort by 40% while ensuring long-term scalability
• ✅ Championed Test-Driven Development (TDD) practices and established comprehensive testing suite, achieving high code coverage and dramatically reducing production bugs
• 🔧 Designed RESTful APIs with TypeScript ensuring type safety, implemented advanced PostgreSQL features (triggers, views, stored procedures) for complex business logic
Digital Solutions 324 SL
Technical Lead• 👥 Led and mentored high-performing team of 6 engineers delivering 8 concurrent projects across LatAm and Europe—coordinating sprints, architecture decisions, and technical roadmaps
• 🛡️ Improved platform stability by 33% (reducing production incidents) through implementing robust CI/CD pipelines with GitHub Actions/Jenkins and establishing rigorous code review practices
• ⚡ Delivered game-changing performance optimization: transformed 2M record processing from 4 hours to just 15 seconds using Parallel LINQ in C#—a 960x improvement enabling real-time analytics
• 🏢 Drove technical strategy and architecture for diverse portfolio: edtech platforms serving 50k+ daily users, enterprise CRM systems, and business analytics solutions
• ☁️ Orchestrated cloud infrastructure on AWS (ECS, RDS, S3), managed database optimization strategies, and established DevOps best practices across all teams
Cruz Roja Nicaragua
Backend Developer• 🚨 Engineered mission-critical Emergency Management System for disaster response operations—enabling real-time tracking of emergency equipment, incident categorization, and geolocation data for the Nicaraguan Red Cross
• 🏗️ Architected complete backend infrastructure using C# and .NET 6 with SQL Server, designing normalized database schema to handle complex emergency scenarios and multi-dimensional analytics
• 📊 Built comprehensive analytics engine to process emergency data across time periods, providing insights for disaster preparedness planning and resource allocation optimization
• 🔧 Established robust CI/CD pipeline with Docker and Jenkins, ensuring reliable deployments for life-saving emergency response software
• 📚 Created detailed API documentation using Swagger, enabling seamless integration with frontend teams and emergency management stakeholders
Polpo Data Analytics & Software Development
Backend Developer (Part-time)• 📊 Developed scalable backend infrastructure for data analysis platform using Node.js + Express.js with PostgreSQL and Sequelize ORM—processing large datasets for business intelligence
• 🛒 Built intelligent web scraping RESTful API aggregating pricing data from multiple supermarket chains, enabling competitive analysis and market insights
• 🎰 Architected backend for sweepstakes application (Clovers Company) using NestJS with AWS S3 integration and PostgreSQL—implementing GitHub Actions CI/CD for automated deployments
• 💬 Created WhatsApp Bot using Express.js + Baileys API for automated survey participation tracking, streamlining data collection processes with containerized Docker deployment
• 🤖 Implemented Python automation scripts to eliminate manual processes, increasing operational efficiency across multiple business workflows