Julio Rojas

a software engineer

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About

Here is a little background

As a dedicated software engineer with a robust background in full-stack development, I specialize in creating high-performance, scalable web applications. My expertise spans both front-end and back-end technologies, including React, Java (Spring Boot), SQL, and AWS. In my recent role at Technergetics, I led the development of user-centric features, enhancing application performance and reliability. I am passionate about continuous learning and thrive in collaborative environments where I can contribute to innovative solutions.

TimeLine

AWS Cloud Quest: Cloud Practitioner

Amazon Web Services Training and Certification

March 2025 - March 2025

Software Engineer II

Technergetics

April 2023 - November 2024

  • Optimized application performance by implementing lazy loading, frontend data caching, and efficient database queries, reducing load times and unnecessary API calls.
  • Led the migration from Redux to Zustand and React Hook Forms, modernizing state management and improving maintainability.
  • Developed and maintained RESTful APIs using Java (Spring Boot) and PostgreSQL, designing endpoints for data querying and mutation.
  • Integrated AI/ML model execution within the application, enhancing automation and intelligent data processing.
  • Conducted code reviews and guided the React team in adopting modern best practices, improving overall code quality and developer efficiency.
  • Increased test coverage to 85% by migrating Enzyme tests to Jest and ensuring robust unit testing for both frontend and backend components.

Jr. Frontend Website Development

Shurable Inc

August 2021 - March 2023

  • Enhanced accessibility by ensuring all components were ARIA-compliant and fully navigable via keyboard (tab accessibility), improving the user experience for all users.
  • Developed business-critical features and actively participated in release cycles, conducting sanity tests post-deployment to ensure stability.
  • Designed and optimized CI/CD pipelines, automating deployments and infrastructure management on AWS. Leveraged Node.js (Serverless Framework), AWS API Gateway, and PostgreSQL (RDS) to build a scalable, cloud-native backend.
  • Developed complex search components in React using Axios and Redux, improving data retrieval and user interaction efficiency.
  • Implemented unit tests in Jest for React components, contributing to the overall stability and reliability of the frontend codebase.
  • Resolved critical bugs and guided fixes through development to production, ensuring a stable and functional website until the company's closure.

Version Control

Coursera

January 2023 - January 2023

React Basics

Coursera

January 2023 - January 2023

HTML and CSS in depth

Coursera

December 2022 - January 2023

Programming with JavaScript

Coursera

December 2022 - December 2022

Introduction to Front-End Development

Coursera

December 2022 - December 2022

AWS Certified Cloud Practitioner

Amazon Web Services

October 2021 - October 2021

HTML, CSS, and Javascript for Web Developers

Coursera

September 2021 - October 2021

Bachelor of Science in Computer Science

New Jersey Institute of Technology

January 2019 - August 2021

Assistant to Enterprise Storage Team

Memorial Sloan Kettering Cancer Center

May 2018 - April 2020

  • Automated server configurations, monitoring, and backups, improving system reliability and reducing manual intervention.
  • Diagnosed and resolved server failures, shutting down faulty machines and deploying replacements to maintain system uptime.
  • Managed and optimized both Windows and Linux servers, supporting storage and networking infrastructure for enterprise operations.
  • Collaborated with IT teams to execute major system upgrades, migrations, and infrastructure improvements, reducing inefficiencies.
  • Increased efficiency and reduced costs by identifying and decommissioning underperforming servers, improving overall resource utilization.

Associate in Science, Major in Computer Science

Bergen Community College

September 2015 - December 2018

Skills

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Projects

Amazon Clone

Case Study 1 of 6: Amazon Clone

This code is an amazon clone where you can buy items and see your past orders by using Stripe. The program will also save items in your cart until you place an order.

Ebay Clone

Case Study 2 of 6: Ebay Clone

This code is an eBay clone where users can buy / auction NFTs using crypto money. Users can also mint/add NFTs to their list and list those NFTs so people can buy or auction those NFTs. All information is stored in thirdweb.

Netflix Clone

Case Study 3 of 6: Netflix Clone

This code is a Netflix clone where users can buy a subscription using Stripe to service, look at trailers and descriptions, cancel/update subscriptions, and save users videos they want in 'My List.'

TikTik App

Case Study 4 of 6: TikTik App

This code is a TikTok clone where users can post videos, like, and comments. The user can also search for videos and accounts on the search bar.

Reddit Clone

Case Study 5 of 6: Reddit Clone

This code is a Reddit clone where you can make posts, like or dislike, and comment. All the Data is saved in Supabase, a PostgreSQL database.

 Youtube Clone

Case Study 6 of 6: Youtube Clone

This code is a YouTube clone. Using RapidAPI, A user can search, watch youtube videos, and many other things.

Contact