Yefferson Espinoza
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Meet me
Engineering

Yefferson Espinoza

Junior Software Engineer

  • Bucaramanga, Colombia
  • Information Engineering, Universidad Nacional Experimental de los Llanos Centrales
  • 4
    Years of Experience
  • github iconlinkedin icon

Professional Bio

I’ve always liked everything about tech. I started my career with the intention of becoming a designer, but later I decided to go deeper into programming, and I took to it immediately. I enjoy solving problems for my clients and facing new challenges everyday. I really like to work with C#, but JavaScript is increasingly relevant for the web-based work I do. Of course, both are great, powerful, flexible, and easy to use. I'm creative, decided, and innovative, and when I'm not working I like to ride my bike, read, and watch movies.

Latin America
Bucaramanga, Colombia

Technology Expertise

  • Advanced label
    Advanced
  • Intermediate label
    Intermediate
Vue.js (Advanced)
HTML5 (Advanced)
React.js (Intermediate)
Javascript (Intermediate)
PHP (Intermediate)
.NET (Intermediate)
CSS (Intermediate)
C# (Intermediate)
MySQL (Intermediate)
Laravel (Intermediate)
Firebase (Intermediate)

Featured References

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Employment History

FullStack Labs November 2020 - Present

Junior Software Engineer

At FullStack Labs, I'm responsible for building client projects from the ground up using JavaScript and other tools.

Grupo Bien Pensado January 2020 - October 2020

Web Developer

Grupo Bien Pensado is a Colombian software consultancy. As a Web Developer, I worked on:

  • FullSmart Yes, a customizable CRM web app. I built modules from scratch, added CRUD functionality with all the business logic on both the front and back ends, added and tested new features to old modules, and refactored legacy code to improve performance. The app was built with Vue.js, Vuex, Laravel, Node.js, Socket.io, and AWS.
  • OEE Smart, a web app to manage equipment effectiveness. I developed sign-in logic with JWT Laravel and session user management. I also built modules from scratch that integrated state management and business logic. The app, developed by a team of 15 programmers, was built with Vue.js, Vuex, Laravel, Node.js, Socket.io, and AWS.
  • YourMarket, an eCommerce platform for SME in Colombia. I added Firebase integration to manage Google and Facebook sign-in services, and added JWT authentication with Laravel. I also built core components for plugins like Google Maps to be used for several modules in the app, which was developed using Vue.js, Vuex, Laravel, Node.js, Socket.io, AWS, Google API services, and Firebase.
KLK Systems February 2017 - December 2019

Full Stack Developer

KLK Systems provides desktop and SAP Business One solutions to SME in Latin America. As a Full Stack Developer, I worked on:

  • The company's website, which provides information about the company's services and products to clients in Latin America. I designed the entire site from scratch using HTML, SASS (CSS), EDGrid, and vanilla JavaScript.
  • SAP Business One add-ons to provide custom functionality modules. I built several extensions for multiple clients in Latin America and Spain that allows them to integrate custom functionality, and third-party software and tools through SOAP web services. I used the .NET Framework, SOAP web services, Integration Framework for SAP Business One, and the SAP Business One SDK.
Latin America
Latin America

Portfolio

Thought Leadership

Employment History

FullStack Labs November 2020 - Present

Junior Software Engineer

At FullStack Labs, I'm responsible for building client projects from the ground up using JavaScript and other tools.

Grupo Bien Pensado January 2020 - October 2020

Web Developer

Grupo Bien Pensado is a Colombian software consultancy. As a Web Developer, I worked on:

  • FullSmart Yes, a customizable CRM web app. I built modules from scratch, added CRUD functionality with all the business logic on both the front and back ends, added and tested new features to old modules, and refactored legacy code to improve performance. The app was built with Vue.js, Vuex, Laravel, Node.js, Socket.io, and AWS.
  • OEE Smart, a web app to manage equipment effectiveness. I developed sign-in logic with JWT Laravel and session user management. I also built modules from scratch that integrated state management and business logic. The app, developed by a team of 15 programmers, was built with Vue.js, Vuex, Laravel, Node.js, Socket.io, and AWS.
  • YourMarket, an eCommerce platform for SME in Colombia. I added Firebase integration to manage Google and Facebook sign-in services, and added JWT authentication with Laravel. I also built core components for plugins like Google Maps to be used for several modules in the app, which was developed using Vue.js, Vuex, Laravel, Node.js, Socket.io, AWS, Google API services, and Firebase.
KLK Systems February 2017 - December 2019

Full Stack Developer

KLK Systems provides desktop and SAP Business One solutions to SME in Latin America. As a Full Stack Developer, I worked on:

  • The company's website, which provides information about the company's services and products to clients in Latin America. I designed the entire site from scratch using HTML, SASS (CSS), EDGrid, and vanilla JavaScript.
  • SAP Business One add-ons to provide custom functionality modules. I built several extensions for multiple clients in Latin America and Spain that allows them to integrate custom functionality, and third-party software and tools through SOAP web services. I used the .NET Framework, SOAP web services, Integration Framework for SAP Business One, and the SAP Business One SDK.