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Joaquin – React, React Native, Typescript, experts in Lemon.io

Joaquin

From Argentina

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Front-end Web DeveloperSenior
Hire developer
4 years of commercial experience
Cryptocurrency
Fintech
Mental healthcare
Product management
GIS software
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Joaquin – React, React Native, Typescript

Joaquin is a confident and friendly professional with about 3 years of commercial experience, particularly excelling in React Native and Next.js at a Senior level. His blend of coding and people management skills, demonstrated in previous Tech Lead roles, highlights his versatility and leadership abilities. Joaquin's communication is concise, transparent, and respectful, making him an effective and approachable collaborator. His prior experience with similar business models and strong communication skills suggests a quick adaptation to new environments. Overall, Joaquin's strengths in key technologies and his confident, proactive communication make him a promising candidate for advanced technical roles.

Main technologies
React
3 years
React Native
3 years
Typescript
3 years
Next.js
3 years
Firebase
3 years
Additional skills
Expo
React Native CLI
React Query
React Hook Form
ChakraUI
Tailwind CSS
Material UI
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

Senior Front-end Engineer
Jun 2024 - Ongoing2 months
Project Overview

The client is a mental health app designed to support users in managing their well-being. It offeres features like mood tracking, guided meditations, and personalized mental health resources. The app is designed to help users monitor their emotional state, reduce stress, and improve their overall mental health through evidence-based practices and user-friendly tools. The main aim is to make mental health care accessible and easy to integrate into daily life.

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Responsibilities:

Joaquin carried out the following responsibilities:

  • refactored to use React Navigation;
  • implemented Query key factory package to manage React query keys;
  • added frontend standards to manage server state;
  • arranged a React Query workshop to share good practices with the rest of the team.
Project Tech stack:
Typescript
React Native
React Native CLI
Expo
React Query
Zustand
Tailwind CSS
Tech Lead
Feb 2023 - Jun 20241 year 4 months
Project Overview

The project was a fintech app offering various financial services, including fiat transfers and an international prepaid Visa debit card. It featured a loyalty program, allowing users to earn rewards, and also provided a crypto wallet and exchange for managing and trading cryptocurrencies. This combination of traditional and digital financial services made app a versatile tool for managing money across different platforms and currencies.

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Responsibilities:

Joqauin's main responsibilities included:

  • designed the app architecture, including navigation, storage, server-state and client state;
  • developed an in-house app after it was developed by another company;
  • launched it in record time;
  • migrated a monolithic solution to microservices;
  • provided code reviews to the teammates.
Project Tech stack:
Expo
Nest.js
React Native
Next.js
Express.js
Typescript
React Query
Zustand
React Hook Form
Frontend Lead
Feb 2022 - Mar 20221 month
Project Overview

A web portal was used to manage solar panels, enabling them to automatically adjust based on the sun's position, wind conditions, and other environmental data. The portal relied on live telemetry reported by each solar panel in the field, allowing for real-time monitoring and optimization of energy production.

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Responsibilities:

Among others, Joaquin implemented the following tasks:

  • adapted OpenLayers (Vanilla JS) to NextJS to manage all the maps;
  • build complex tables to manage latitude and longitude for solar panels.;
  • developed GIS software;
  • implemented new UI components.
Project Tech stack:
Next.js
Typescript
React Query
Zustand
Material UI
Frontend Developer
Sep 2021 - Feb 20225 months
Project Overview

An app was developed specifically for Android devices used by handpickers. This app streamlined warehouse operations by allowing workers to efficiently manage inventory, track orders, and optimize picking routes directly from their handheld devices. The Android-based app improved accuracy and productivity, making it easier for handpickers to perform their tasks in real-time within the warehouse environment.

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Responsibilities:

Joaquin contributed with the following:

  • modified native code to make the barcode work;
  • distributed correctly to all handpickers with no issues.
Project Tech stack:
React Native CLI
React Native
Expo
React Hook Form

Education

2023
Systems Analyst
Associate's Degree

Languages

French
Pre-intermediate
Spanish
Advanced
English
Advanced
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