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I’m a Senior Software Engineer and AI/ML Engineer with 10+ years of experience building production-grade backend systems, scalable APIs, and data-driven solutions. I focus on reliability, maintainability, and performance—turning engineering best practices into systems that work well in real distributed environments. I’ve contributed end-to-end across the software lifecycle, from architecture and implementation to production operations and continuous improvement. My background spans Python, TypeScript/JavaScript, AWS, and AI/ML work, with a practical bias toward measurable impact beyond prototypes—especially when reliability and observability matter most.…I’m a Senior Software Engineer and AI/ML Engineer with 10+ years of experience building production-grade backend systems, scalable APIs, and data-driven solutions. I focus on reliability, maintainability, and performance—turning engineering best practices into systems that work well in real distributed environments. I’ve contributed end-to-end across the software lifecycle, from architecture and implementation to production operations and continuous improvement. My background spans Python, TypeScript/JavaScript, AWS, and AI/ML work, with a practical bias toward measurable impact beyond prototypes—especially when reliability and observability matter most.

Rafael Pelayo

Back-End Developer, AI Engineer, Full Stack Developer, +2

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I’m a Senior Software Engineer and AI/ML Engineer with 10+ years of experience building production-grade backend systems, scalable APIs, and data-driven solutions. I focus on reliability, maintainability, and performance—turning engineering best practices into systems that work well in real distributed environments. I’ve contributed end-to-end across the software lifecycle, from architecture and implementation to production operations and continuous improvement. My background spans Python, TypeScript/JavaScript, AWS, and AI/ML work, with a practical bias toward measurable impact beyond prototypes—especially when reliability and observability matter most.…I’m a Senior Software Engineer and AI/ML Engineer with 10+ years of experience building production-grade backend systems, scalable APIs, and data-driven solutions. I focus on reliability, maintainability, and performance—turning engineering best practices into systems that work well in real distributed environments. I’ve contributed end-to-end across the software lifecycle, from architecture and implementation to production operations and continuous improvement. My background spans Python, TypeScript/JavaScript, AWS, and AI/ML work, with a practical bias toward measurable impact beyond prototypes—especially when reliability and observability matter most.

Available to hire

I’m a Senior Software Engineer and AI/ML Engineer with 10+ years of experience building production-grade backend systems, scalable APIs, and data-driven solutions. I focus on reliability, maintainability, and performance—turning engineering best practices into systems that work well in real distributed environments.

I’ve contributed end-to-end across the software lifecycle, from architecture and implementation to production operations and continuous improvement. My background spans Python, TypeScript/JavaScript, AWS, and AI/ML work, with a practical bias toward measurable impact beyond prototypes—especially when reliability and observability matter most.

Skills

Experience Level

Expert

Expert

Expert

Expert

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Expert

Language

Work Experience

Senior Software Engineer at Airbnb (Contract, Remote)

September 1, 2020 - August 1, 2026

Engineered production software systems within a distributed engineering environment, contributing to backend development, scalable system design, and long-term software reliability. Designed and developed backend services and APIs with strong emphasis on maintainability, scalability, performance, and operational resilience. Applied Python, AWS, and AI/ML capabilities to software engineering initiatives, bridging AI/ML development with production-grade engineering practices. Collaborated across distributed and cross-functional teams to develop, integrate, and maintain services while balancing complexity with operational needs. Improved reliability, observability, and performance through production-engineering principles as applications and requirements evolved. Participated in technical decision-making around backend architecture and software design, favoring understandable and sustainable solutions over unnecessary complexity.

Full Stack Engineer at HHRG Services

March 1, 2014 - August 1, 2020

Developed and maintained full-stack software solutions across backend and frontend layers to support business applications throughout the development lifecycle. Designed backend functionality and application services with maintainable architecture, reliable behavior, and scalable development practices. Built and integrated frontend and backend components using TypeScript and related web technologies. Diagnosed and resolved issues across the stack to support stable operation and continuous improvement. Collaborated with technical and business stakeholders to translate requirements into practical solutions delivered across multiple application areas. Demonstrated technical leadership through development practices, implementation decisions, and collaborative problem-solving as architecture and complexity evolved.

Junior Full Stack Engineer at HHRG Services

June 1, 2013 - February 1, 2014

Developed frontend and backend functionality for web applications, building hands-on experience across the complete application stack. Built and maintained server-side components using Node.js and related backend web technologies. Implemented frontend functionality and integrated user-facing components with backend services and application logic. Collaborated with team members to troubleshoot defects, implement enhancements, and deliver product requirements. Contributed to code maintenance and iterative improvements while developing foundational full-stack and backend engineering skills.

Freelance Full Stack Developer at Self-employed

October 1, 2012 - May 1, 2013

Delivered freelance web-development solutions covering frontend and full-stack implementation for client requirements. Developed interactive web functionality using JavaScript and supporting web technologies. Managed development from requirements interpretation through implementation and delivery in a client-driven environment.