Jorge – React, Node.js, Next.js

A comprehensive platform enabling individuals to purchase tickets and book tours for both national and privately owned parks across the entire United States

• Developed and maintained a microservices architecture with Golang and GoKit, utilizing gRPC for seamless communication;
• Successfully reduced code duplication across Go microservices by migrating it into an internal library, resulting in a significant code size reduction of around 30%;
• Carried out a migration from Apache Cassandra to AWS DynamoDB, which led to a cost decrease of approximately 5% per month;
• To enhance data processing and reporting, an ETL (Extract, Transform, Load) process was implemented within a reporting microservice. Jorge used AWS Glue to transform data sourced from DynamoDB and pushed it to Redshift. The entire data flow was orchestrated using AWS Step Functions, ensuring efficient data transformation and loading.
• On the front end, was responsible for developing and maintaining a micro-frontend architecture with React and Redux.
• Optimized page load times by implementing lazy loading of maps upon reaching a specific viewport, resulting in a 22% improvement in load times;
• Prioritized accessibility by introducing focus lock/trap mechanisms, leading to a 12% increase in the Lighthouse score;
• Enhanced testing practices, raising global test coverage from around 20% to a full 100% across four micro-frontend services. Achieved this with the help of Jest, React Testing Library, and MSW;
• Actively engaged in the creation and upkeep of internal npm packages associated with a custom CSS framework built upon Tailwind CSS and implemented using TypeScript.

A platform for purchasing and selling tickets to concerts and events.

• Optimized cron job for millions of database records, leveraging multi-threading for batch processing and Elasticsearch indexing, previously consuming over 50GB of memory and taking up to 20 hours for completion;
• Conducted a full system refactor, achieving remarkable performance improvement: now completed within 1 hour and utilizing under 4GB memory;
• Implemented Datadog and pprof for effective debugging and monitoring, successfully resolving numerous data race issues;
• Successfully migrated all image assets stored in AWS S3 to Cloudinary without downtime, ensuring seamless asset management.

A telemedicine healthcare application facilitating face-to-face doctor-patient interactions through Twilio's API integration, adhering to the HIPAA standard

• Streamlined build processes, cutting server-side rendering for a 10% faster build time;
• Enhanced React Native app performance by eliminating obsolete data, and optimized network use by reducing backend calls by 30%;
• Trimmed Docker image build time by 5% via library removal;
• Slashed AWS costs by 22% by decommissioning unused services/environments backed by data and testing;
• Reduced CircleCI credits use by 25% with automated test splitting in CI/CD pipelines.

The product is built upon the foundation of the open-source application Consul, offering e-participation web software

• Created a React and Node.js software wizard for a government housing website, focused on providing low-interest loans for middle-class individuals;
• Insured compatibility with older Windows versions to cater to customers from modest backgrounds;
• Implemented polyfills for legacy browser support;
• Optimized the wizard's performance by memoizing queries and filters;
• Integrated Heroku with Salesforce, and exported Salesforce data into a Postgres DB to make reports;
• Designed and launched the BA Elige website for the Argentinian government, utilizing the open-source Consul platform to enable e-participation. Proficiently managed social network APIs with Ruby on Rails.

A pay-per-view web application. Similar to Netflix, the website featured a catalog of films and series for users to select

• Developed a pay-per-view web application called Mega Cine with React and Node.js. Similar to Netflix, the website featured a catalog of films and series for users to select. Created several similar sites for target audiences, including Dibukids dedicated to children and Mes-Meilleurs Films dedicated to French-speaking users.
• Developed website with WordPress and Joomla used for streaming. Created additional themes and plugins for WordPress.