Cristian Rojas Betancur

backend engineer

Professional profile

Backend developer with 3+ years of experience building and maintaining scalable web applications and APIs using Ruby on Rails . Skilled in integrations , automation , and collaborating with multidisciplinary teams

Work experience

Backend Developer

aleluya software | July 2022 - November 2025 (3 años 4 meses)

Used skills

Led backend development for a multi-module app, handled API integrations, created internal tooling, participated in code reviews, provided technical support, dockerized applications, and automated workflows with N8N.

Major achievement

Designed and maintained backend features in Ruby on Rails, built integrations (HubSpot, Zoho CRM, Verifik, Courier, Firebase), developed internal tools, automated workflows with N8N, and implemented AI Q&A chat using GPT-4o + RAG.

Full Stack Developer

protalento | July 2021 - March 2022 (8 meses)

Used skills

Developed full stack web applications, worked with Figma, Trello, Git, and participated in agile methodologies.

Major achievement

Built a Mercado Libre–style web app and an e-commerce platform connecting rural producers with consumers using JavaScript, HTML, CSS, and agile workflows.

Education experience

Programming Technician
Inem jose felix de restrepo | Técnico/Tecnólogo

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