Johnathan Guzman

About

Jonathan Guzman is an experienced software engineer with five years of extensive experience in web development using Ruby on Rails and Full-Stack. He is also knowledgeable with React, Redux, Material UI, Node.js, HTML/CSS, and Express.js., and has built websites, platforms, and applications using these tools.

Employment

6 roles

Feb 2022 - Present 4 years 3 months

Software Engineer

Big Nerd Ranch

Performed application development for the full lifecycle of software.
Identified and assessed new technologies prior to implementation.
Performed maintenance and software integrations for existing systems.
Analyzed user requirements, software, and code, and completed systems risk and reliability analysis.

Aug 2021 - Feb 2022 6 months

Software Engineer - Ruby on Rails

Ecolane

Contributed to the updates of systems running on older versions of Ruby on Rails to recent versions.
Worked with apps running on Docker servers where the DB environment needs to be different to access certain data.
Participated in daily scrum meetings and used Jira for project management.
Made UI updates for many transit applications built using Ruby on Rails MVC.
Helped with the Java side of things by working together with other developers on backend tickets.

Mar 2021 - Oct 2021 7 months

Web Developer

Preferred Risk Insurance Services

Contributed to the development and deployment of a cloud-based application that helped the company generate online income by allowing users to purchase insurance through the web. Technologies used: Docker, Kubernetes, Rails, gRPC, and React.
Developed a robust email service in .NET that allows for custom email sending using SendGrid as an email delivery service or using Microsoft Exchange to send SMTP emails.
Provided support in maintaining legacy applications running on legacy .NET and older versions of jQuery.
Quickly adapted to a shifting technology atmosphere.

Oct 2020 - Dec 2020 2 months

Software Engineer

Hungr

Responsible for building and maintaining the frontend UI of home and login/signup screens of the web app built with React/Redux.
Collaborated with the project manager, designers, and other in-house developers when building out the main project.
Established and analyzed frontend architecture using React and context API.
Built login system using Node.js, Express.js and Auth0.
Engaged in weekly sprints.

Jan 2019 - Feb 2020 1 year 1 month

Fullstack Software Engineer

Zenyx LLC

Responsible for creating and maintaining web apps built with React, Redux, Material UI, Node.js and Express.js such as point-of-sale APIs, inventory systems and in-app communication channels.
Digitally modernized certain business aspects of existing clientele by contributing to the design and development of payment processing systems and services using Node.js and Express.js as the backend.
Maintained a collection of client applications running on Node.js., such as ecommerce stores using stripe API for payments, dropshipping management tools and CRM systems.
Collaborated on building supermarket applications which handled POS and inventory features using the MERN stack and stripe for online payment processing.

Jun 2017 - Dec 2018 1 year 6 months

Frontend Developer

Kreate

Increased business revenue by building a CRM portal for multiple clients using HTML, CSS, and jQuery for the frontend and Ruby on Rails for the backend.
Streamlined invoice generation and project scope development by building a communication tool that allowed users of both parties to be synchronized across all project phases using Ruby on Rails MVC architecture.
Aided in the development of an automatic email campaign software using HTML, CSS, and Ruby on Rails.
Collaborated on designing and developing landing pages using bootstrap for the frontend and Ruby on Rails for the backend to manage user-submitted data.
Helped build a dental office dashboard using Bootstrap, JavaScript, and React where all dental personnel manages appointments, inventory, educational and training videos for staff, and a management system for client dental data.