Javier Borja

Javier Borja

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ABOUT ME
Java and Javascript developer with 10 years of experience
Java and Javascript developer with 10 years of experience

I'm a Software Engineer with 10+ years of experience across full-stack and frontend roles, working with React, TypeScript, Remix, and Elasticsearch. As a founding engineer at a US-based healthcare SaaS, I've built core product systems end-to-end — from search infrastructure and data visualization to a complete telephony platform with dynamic number insertion and automated call routing. AI is central to how I work: I configure enterprise AI coding tools, build custom agents for automated code review, and integrate design-to-code workflows through protocol servers — while holding to the principle that programming is the art of keeping code simple to solve a problem in the best possible way. Prior experience includes consulting at ThoughtWorks and edtech at Edmodo, with a master's degree in Computer Science.

Spanish, English
Mexico City (-06:00)
Joined July 2019
EXPERTISE
6 years experience
6 years experience
3 years experience
6 years experience
1 year experience
1 year experience
3 years experience

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SOCIAL PRESENCE
GitHub
demographyInvestigation
Project about demography and CS
0
0
html
Just html examples
HTML
0
0
EMPLOYMENTS
Frontend Engineer · AI-Augmented Development
Trackable
2022-09-01-Present
  • Architected and shipped a complete telephony system — dynamic number insertion snippet, stateless call routing engine, webhook se...
  • Architected and shipped a complete telephony system — dynamic number insertion snippet, stateless call routing engine, webhook security, and Twilio integration — spanning frontend, backend, and third-party APIs.
  • Built and maintained advanced search and filtering systems using Elasticsearch, including complex aggregations, location-based access controls, and data visualization interfaces.
  • Designed and implemented the role-based permissions system controlling access across the platform.
  • Own the frontend across all product surfaces, focused on building fast, responsive interfaces with seamless transitions and polished interactions that prioritize the end-user experience.
Elasticsearch
TypeScript
Twilio
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Elasticsearch
TypeScript
Twilio
Docker
React
JavaScript
DynamoDB
GraphQL
Figma
Tailwind css
AI
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Senior Software Engineer
Edmodo
2022-02-01-2022-08-01
Project: Web system to create short lessons in a cohort fashion. It is a new project to expand and leverage the Edmodo educational platfo...
Project: Web system to create short lessons in a cohort fashion. It is a new project to expand and leverage the Edmodo educational platform. Project has three main features: lesson creation, lesson tracking when registered and messaging between students and teacher. * Coded the lesson page where students can track which resources the lesson has. * Allowed students to change lessons resources to in progress or completed and vice versa. * Coded a video player component to reproduce Youtube and Vimeo videos where the component should validate any Youtube or Vimeo URL otherwise show an error component. * Made spikes on future developments and posible tools, e.g. rails gems, JS dependencies, calls APIs. * Used Stream API to allow students and teachers to communicate in chats. * Coded notifications of new messages. * Debugged CI/CD pipelines. * Made CI/CD workflow recommendations. * Backfilled tech lead and took ownership of messages feature.
Ruby on Rails
Git
GitHub
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Ruby on Rails
Git
GitHub
Front-End
Docker
React
JavaScript
Back-End
Material-UI
Redux
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Senior Developer Consultant
ThoughtWorks
2020-03-01-2022-02-01
Project: Tech assessment to increase IT agility while continuing client's modernization journey for a heavy workers management company. ...
Project: Tech assessment to increase IT agility while continuing client's modernization journey for a heavy workers management company. * Assessed client's software, architecture, DevOps, engineering, QA practices, product management, team organization to the best practices in the industry. * Made recommendations about IT practices to allow client to achieve their company's goals. * Took ownership of one line of business to show best IT practices in action. * Played the role of Tech leader. * Made technical recommendations to the client. * Defined a slice of business to be worked by the Thoughtworks team. * Debugged CI/CD pipelines. * Made CI/CD workflow recommendations. Project: Web application to connect companies with common UN sustainable development goals, also called, "companies LinkedIn" * Developed a web application to allow organizations to share how they are complying with UN sustainable development goals. * Added chat functionality as a mean to connect organizations. * Developed back-end services. * Developed front-end pages. * Made technical recommendations to the client. Project: Web application for a Canadian communication company that sells security packages which might include additional devices to their packages. * Developed a web application to allow customers to buy security. * Developed back-end services. * Developed front-end pages. * Configured A/B tests with Adobe Campaign and Contentful. * Debugged CI/CD pipelines. * Made CI/CD workflow recommendations.
Ruby on Rails
Node.js
Heroku
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Ruby on Rails
Node.js
Heroku
Jenkins
React
OpenShift
Circleci
Material-UI
Redux
CI/CD
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PROJECTS
DemografiandoView Project
2020
It is a project to show demography data. It includes D3.js to create an interactive map. this project was created with the intention to u...
It is a project to show demography data. It includes D3.js to create an interactive map. this project was created with the intention to use the basics of HTML, CSS and Javascript. It is also an excuse to use Digital Ocean.
HTML/CSS
R
CSS3
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HTML/CSS
R
CSS3
D3.js
JavaScript
DigitalOcean
Tailwind css
Apache HTTP Server
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Pixel ArtView Project
2022
A simple Pixel Art project created with html, CSS, JS It is on early stages
A simple Pixel Art project created with html, CSS, JS It is on early stages
HTML/CSS
GitHub
JavaScript
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HTML/CSS
GitHub
JavaScript
DigitalOcean
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