You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Yohana OronaYO

Yohana Orona

Software Developer

€250/day
Buenos Aires, AR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Yohana

I develop modern and scalable web applications
I am a Frontend developer specialized in React, JavaScript ES6+, Node.js and REST APIs, with experience in integrating micro frontends and optimizing application performance.

What I offer:

Responsive web interface development with React

REST API and microservices integration

Performance and load time optimization

Functional and regression testing to ensure quality

Evolutionary maintenance and technical support

My added value:
I have experience working in critical environments, analyzing and resolving production errors using Kibana, Grafana, ElasticSearch and Datadog for real-time monitoring.
I work under agile methodologies (Scrum/Kanban), collaborating effectively in distributed teams or in individual projects.
  • Spanish

    Native or bilingual

Can work on-site
Buenos Aires (up to 50km)

Experience

  • Mercado Libre
    Software Developer
    SOFTWARE PUBLISHING
    January 2023 - July 2025 (2 years and 6 months)
    Buenos Aires, Argentina
    I developed applications withNode.js**, **React, JavaScript and TypeScriptwith a focus on data analysis and performance optimization. I implemented solutions for incident management, analyzing production logs to diagnose and resolve errors in critical environments. I managed metrics using Datadog, performing trend analysis to identify opportunities for system performance improvement. I performed functional testing tasks ensuring software quality before and after deployment. I participated in support shifts, providing real-time assistance for incident resolution and ensuring the stability of applications.
    Figma UX/UI Front-End development React.js Typescript
  • Epidata
    Full Stack Developer
    SOFTWARE PUBLISHING
    September 2022 - January 2023 (4 months)
    Buenos Aires, Argentina
    Migration of an application developed in Visual Basic to React, improving the user interface and optimizing performance. Design and implementation of **backend services**, APIs and endpoints. Coordination with the technical team to ensure the correct migration of functionalities and data to the new platform.
    SQL Python PHP Java MuleSoft

Recommendations

Be the first to recommend Yohana

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Diploma in Data Science
    MundosE – Universidad Nacional de Córdoba
    Diplomatura en Data Science
  • Certified Tech Developer
    Digital House
    2021
    Certified Tech Developer

Skill set

Categories