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Germán – React, Node.js, JavaScript, experts in Lemon.io

Germán

From Mexico (GMT-6)

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Full-stack Web DeveloperMiddle-to-senior
Front-end Web DeveloperSenior
Hire developer
7 years of commercial experience
Automotive
Energy
Event management
Fintech
Healthcare
Healthtech
Hospitality
Human resources
Sales
Tourism
Travel
Web-hosting
CRM
DBMS
Dev tools
Enterprise software
Mobile apps
Platforms
Utilities
Video streaming software
Lemon.io stats
1
projects done
312
hours worked
Open
to new offers

Germán – React, Node.js, JavaScript

Germán is an expert in React and Node.js ecosystems, with a strong preference for front-end development. He has collaborated with major companies like Oracle and IBM, demonstrating his ability to embrace limitless professional opportunities. Germán is a confident team player who can also work independently, valuing trust in professional relationships and excelling at fostering a positive working environment.

Main technologies
React
5 years
Node.js
3 years
JavaScript
5 years
Typescript
3 years
AWS
3 years
Apollo GraphQL
2 years
Next.js
2 years
Additional skills
Jest
Cypress
Express.js
REST API
Sequelize ORM
DynamoDB
OAuth
Stripe API
Material UI
MobX
PostgreSQL
React Native
Lambda
SPA
Vercel
Testimonials
#13714100077Front-End Developer (React, Typescript, Graphql), full-time / 2 month
"German has been wonderful, and we’re very happy with his work. "
Ready to start
ASAP
Direct hire
Potentially possible

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Experience Highlights

Senior Software Engineer
May 2022 - Ongoing2 years 4 months
Project Overview

It is a platform to enable users with electric vehicles the ability to reduce their costs from every charge and provide them with unique follow-ups as they use their vehicles.

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Responsibilities:
  • Built a platform from scratch that allows video calls and live chat messaging;
  • Created a subscription payment service with STRIPE API;
  • Developed new entities/models for a database using Sequelize and Postgres;
  • Created all the UI for the React web app using Next and Rx;
  • Defined flow and architecture for the platform.
Project Tech stack:
Typescript
Node.js
Express.js
REST API
React Native
React
Front-End Developer
May 2023 - Jul 20232 months
Project Overview

The platform helps companies to create and organize events for their employees.

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Responsibilities:
  • redesigned the existing front-end
  • debugged and resolved the application issues
  • integrated with different providers
Project Tech stack:
Next.js
React
React Hook Form
Typescript
Apollo GraphQL
Material UI
Vercel
Senior Software Engineer
Jul 2021 - May 202210 months
Project Overview

It is a developed-from-scratch dermatology web-based application that provides doctors and patients the ability to connect easily by having video calls, sending photos, surveys, instant messages, and more.

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Responsibilities:
  • Created new REST API endpoints that will be consumed by React Native and React web applications using Node, Express, Typescript, and Sequelize;
  • Was responsible for the authentication and authorization layer using Keycloak instance by creating and configuring realms, clients, middleware layers, etc.;
  • Communicated server to consume third-party API;
  • Created unit testing for each endpoint and function developed on the server using Mocha, Chai, and Sinon.
Project Tech stack:
Next.js
Typescript
Sequelize ORM
DynamoDB
AWS
PostgreSQL
HTML
CSS
OAuth
Stripe API
Material UI
React
Vercel
Senior Software Engineer
Jan 2021 - Jul 20215 months
Project Overview

It is an open platform for building developer portals powered by a centralized software catalog that restores order to your infrastructure and enables your product teams to ship high-quality code quickly.

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Responsibilities:

He successfully managed the following:

  • Contributed to the open-source backstage repository;
  • Integrated the latest releases into the custom backstage repository;
  • Create new custom functionalities on top of the Backstage repository;
  • Built CI/CD using Spinnaker and Jenkins;
  • Created unit testing for the latest features.
Project Tech stack:
Typescript
HTML
CSS
Material UI
GraphQL
React
Full Stack Engineer
Jun 2020 - Jan 20217 months
Project Overview

Platform for local businesses to help with accepting payments with any card and online, digitizing the business and with world-class customer service 24/7

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Responsibilities:
  • Developed new functionality e.g modules and components for our web dashboard catalog section
  • Worked at the Mobile Experience Team, where I spent most of the time creating and maintaining back-end services
  • Creating and maintaining micro services written in AWS Lambdas, and communicating them with RabbitMQ through events like AWS SNS or AWS SQS.
  • Create unit testing for server-side functionality
  • Create unit testing for client-side functionality
Project Tech stack:
Redux
React
JavaScript
HTML
CSS
Lambda
AWS
AWS SNS
Amazon SQS
RabbitMQ
Node.js
Software Engineer
Jul 2019 - May 202010 months
Project Overview

It is a popular website for booking travel accommodations that aim to provide the lowest prices for any booking, which is backed up with the “Best Price Guarantee.”

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Responsibilities:
  • Created unit and integration testing using Jest and React testing libraries;
  • Built e2e testing using Cypress;
  • Created and maintained components that were stored in a shared component library;
  • Enabled and disabled A/B testing and feature flags.
Project Tech stack:
MobX
HTML
CSS
Typescript
Cypress
Jest
e2e testing
React
Application Developer
Apr 2017 - Jan 20191 year 9 months
Project Overview

It is an application that centralizes data fetching of hundreds of feeds that were transformed by using IBM Cloud, CloudantDB, Node, React, Handlebars, and HTML / CSS to create embedded reports into interactive and dynamic views.

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Responsibilities:
  • Improved general performance by reducing 60% the response time from queries to the No-SQL Database as well as the code re-factorization and integration of React;
  • Migrated a desktop app to a web-based app;
  • Built and maintained REST API endpoints by using Node and Express;
  • Created views by using Handlebars.
Project Tech stack:
jQuery
Handlebars
Node.js
HTML
CSS
React

Education

2018
Informatics Engineering
Bachelor Degree

Languages

English
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