I’m a Senior Full-Stack Engineer with 8+ years of experience building production applications using TypeScript, Node.js, React, and Next.js. I enjoy taking products from API design and data modeling all the way to polished UI, including GraphQL/Apollo, PostgreSQL and MongoDB, and production deployments on AWS. Across multiple client engagements, I’ve delivered end-to-end solutions for insurance, enterprise SaaS, AI-enabled applications, and data-intensive platforms—often improving performance by redesigning queries, indexing, and access patterns to reduce processing times from minutes to seconds. I also work closely with stakeholders and teams to integrate third-party systems reliably, modernize legacy functionality, and create scalable workflows for real-world business needs.

Juan Felipe Llano Miraval

I’m a Senior Full-Stack Engineer with 8+ years of experience building production applications using TypeScript, Node.js, React, and Next.js. I enjoy taking products from API design and data modeling all the way to polished UI, including GraphQL/Apollo, PostgreSQL and MongoDB, and production deployments on AWS. Across multiple client engagements, I’ve delivered end-to-end solutions for insurance, enterprise SaaS, AI-enabled applications, and data-intensive platforms—often improving performance by redesigning queries, indexing, and access patterns to reduce processing times from minutes to seconds. I also work closely with stakeholders and teams to integrate third-party systems reliably, modernize legacy functionality, and create scalable workflows for real-world business needs.

Available to hire

I’m a Senior Full-Stack Engineer with 8+ years of experience building production applications using TypeScript, Node.js, React, and Next.js. I enjoy taking products from API design and data modeling all the way to polished UI, including GraphQL/Apollo, PostgreSQL and MongoDB, and production deployments on AWS.

Across multiple client engagements, I’ve delivered end-to-end solutions for insurance, enterprise SaaS, AI-enabled applications, and data-intensive platforms—often improving performance by redesigning queries, indexing, and access patterns to reduce processing times from minutes to seconds. I also work closely with stakeholders and teams to integrate third-party systems reliably, modernize legacy functionality, and create scalable workflows for real-world business needs.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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Language

Spanish; Castilian
Fluent

Work Experience

Full-Stack Engineer at Gorilla Logic
August 1, 2021 - July 1, 2026
Delivered full-stack solutions across five client engagements in insurance, AI-enabled applications, enterprise SaaS, reporting, and data-driven platforms using TypeScript, Node.js, React, databases, and AWS services. Owned key insurance workflows and iterated on ACORD RC1/RC2/RC3 XML integrations with strong request/response validation and mapping fixes. Modernized legacy home-insurance UI and configuration logic (including manufactured home handling rules and Salesforce changes). Built embedded chat-widget integrations for multiple CRMs (Salesforce, Zendesk, Freshdesk) with security controls and tool-calling handlers for an AI Copilot. Designed and implemented NestJS data-processing workflows for complex report generation, improving API/DB response times dramatically through query/index/model optimizations, and delivered scalable grouping/filtering features for large datasets. Built Node.js/TypeScript microservices with GraphQL (Apollo) and an API gateway, including migrations via a
Web UI Developer at Globant
October 1, 2018 - August 1, 2021
Developed responsive, reusable UI components using React, Next.js, and styled-components for HBO Max launch and international expansion. Implemented Node.js functionality for dynamic page generation and localized/regionalized content experiences across multiple markets. Contributed to enterprise web projects using React/JavaScript/HTML/CSS, Bootstrap, and Adobe Experience Manager, along with automated testing using Jest and Enzyme. Collaborated with designers, backend engineers, and QA to deliver production-ready features across several teams and markets.
Web UI Developer at Centro de Innovación y Desarrollo (CID)
September 1, 2017 - October 1, 2018
Delivered websites, educational platforms, and interactive web experiences with responsibility for implementation, responsive design, and frontend functionality. Built responsive web platforms using HTML, CSS, JavaScript, React, Node.js, Bootstrap, and WordPress. Created interactive educational pages for the Bachillerato Digital platform using JavaScript and jQuery.

Education

Post-graduate program (Advanced Certificate) - Integrated Design of Technical Systems at EAFIT University
January 1, 2016 - January 1, 2017
Mechanical Engineering at EAFIT University
January 1, 2012 - January 1, 2016

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Financial Services, Education, Professional Services