Oscar Cuéllar

Hi, I am Oscar

+6 years of experience. I have a bachelor's degree in Science and Systems Engineering. Currently I live in Winnipeg, Manitoba. FullStack Web Developer.

Experience

  1. React Senior Developer and Team Leader. Current

    Intuitiva S.A. - Guatemala, Guatemala. (Remotely).

    Top Guatemala Company providing ERP & CRM and custom software services. 10 employees. 2000 active users per day. 500 request per minute to the systems.

    Development and maintenance in the company's main application, ZAURU, an ERP with over 2,000 active users and all the necessary modules for a business.

    Leading and collaborating with a team for custom developments, creating web applications connected to the ERP & CRM main system API.

    Design and implementation of static pages requested by clients for their own online stores, connected to the CRM API or CMS.

  2. FullStack Developer.

    Public Ministry of Guatemala. - Guatemala, Guatemala. (In person).

    Branch of the Government dedicated to ensuring compliance with justice in the country. Approx. 70 Tech employees. 1500 active users per day on the platforms.

    I led and trained development teams at the Public Ministry to create new modules within applications (ASTREA, AyudaGT) previously developed by the NGO.

  3. FullStack Developer.

    Justice Education Society of BC. - Canada, British Columbia. (Remotely).

    ONG dedicated to promoting legal education and access to justice. Approx. 150 employees. 1000 users per day..

    Collaborated with the Public Ministry of Guatemala to improve the national justice systems, with focus on criminal and judicial areas.

    Migration of the SICOMP system (Java, Spring Boot, SQL Server) towards new App ASTREA (ReactJs, NestJS, NodeJS, Microservices, MongoDB, SQL Server).

    Creation of a new application, AyudaGT, focused on providing assistance to crime victims in Guatemala. (ReactJs, NestJS, NodeJS, Microservices, MongoDB, SQL Server).

Skills

Frontend

Advanced
Tailwind CSS
HTML
CSS
JavaScript
TypeScript
React
Remix
Gatsby
Redux
Intermediate
Astro
Next.js
Bootstrap
Flowbite
MaterialUI
Learning
Angular

Backend

Advanced
NodeJS
ExpressJS
NestJS
.NET Framework
JavaScript
TypeScript
C#
Intermediate
Python
Java
Learning
Ruby

DataBases

Advanced
MongoDB
MySQL
MSSQL
PostgreSQL
Redis
Firebase
Intermediate
Upstash

Software

Advanced
Jira
Trello Trello-color Created with Sketch.
Docker
Git
GitHub
GitLab
Slack
Postman
Swagger
GraphQL
Intermediate
Storybook
Asana

About Me

My name is Oscar René, but everyone calls me Koka. I'm passionate about web development. Currently, I'm leading the WEBD-3012 program at Red River College (Winnipeg, Manitoba) as part-time.

Some of my successes include the creation of ASTREA and AYUDA.GT, two systems used nationally in Guatemala for reporting and assisting victims, in collaboration with Justice Education Society and the Public Ministry of Guatemala.

Oscar Cuéllar