Open to opportunities

Rafael Eduardo Murgas Zuleta

@rafaeleduardomurgasz

Message

Senior full-stack engineer building AI-powered, fast, reliable products.

Colombia

Message

What I'm looking for

I’m looking for a role where I can build and scale AI-powered full-stack products with strong CI/CD, performance-focused engineering, and clear ownership. I want to partner across teams, ship reliably, and keep improving developer velocity through reviews and mentorship.

I improve product performance and reliability end-to-end: I optimized React components and PostgreSQL queries to improve page load speed by 35% across 12+ production web applications, boosting user retention.

I design and ship scalable architectures—building microservices with Node.js, NestJS, and Docker to reduce deployment time by 40%, and migrating legacy workloads to AWS ECS with CI/CD pipelines to cut cloud costs by 20% annually while increasing deployment reliability.

I also lead quality and growth by building automated pipelines (Jest, Cypress, GitHub Actions) that reduced bug-related production incidents by 50%, delivering a Stripe subscription billing system that enabled $500k additional revenue per quarter, and mentoring 5 junior engineers to increase team velocity by 30%.

Experience

Work history, roles, and key accomplishments

Current

Senior Full-Stack Engineer

Current

NovaAI Solutions

Jan 2022 - Present (4 years 5 months)

Designed and deployed a predictive analytics platform that increased customer retention by 20% and built recommendation engines using collaborative filtering and NLP on ~10M-record datasets. Developed full-stack applications with React and Node.js, implemented ETL workflows reducing manual effort by 40%, and deployed on AWS using Docker and CI/CD for scalable production performance.

React Predictive Analytics NLP Recommendation Systems ETL AWS Docker CI CD Recommendation Engines

Full Stack Developer

FintechPro

May 2019 - Dec 2021 (2 years 7 months)

Built responsive web applications with React, Redux, and Node.js, improving load times by 30%. Integrated AI features like image recognition and sentiment analysis, optimized AWS infrastructure to reduce costs by 25% through auto-scaling, and supported delivery via code reviews, sprint planning, and junior mentorship.

React Redux Image Recognition Sentiment Analysis AWS Cost Optimization Code Review Mentoring

AI Engineer & Backend Developer

TechVision BV

Mar 2016 - Apr 2019 (3 years 1 month)

Developed machine learning models for fraud detection and predictive analytics, reducing incidents by 15%, and built backend APIs with Python (Django/Flask) for AI model integration. Created automated data pipelines for datasets of up to 5M+ entries and collaborated with frontend teams to integrate AI features into web applications.

Machine Learning Fraud Detection Predictive Analytics Python Django Flask Backend Data Pipelines REST APIs AI Integration

Software Engineer

WebConstruct

Jun 2013 - Feb 2016 (2 years 8 months)

Developed and maintained responsive websites and web applications using HTML, CSS, JavaScript, and jQuery, and implemented backend functionality in PHP with MySQL. Optimized website performance for cross-browser and mobile responsiveness, assisted with legacy migrations, and maintained technical documentation for deployments.