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

Edgar

From Mexico (GMT-6)

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Full-stack Web DeveloperSenior
Hire developer
10 years of commercial experience
E-learning
Fintech
IoT
Networking
Public services
Sports
Collaboration tools
Embedded software
Mobile apps
SaaS
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Edgar – JavaScript, Node.js, React

Edgar is a back-end-focused Full-stack developer with over 9 years of experience, specializing in Javascript, Node.js, and React.js. Our technical interviewer also highlighted his solid DevOps experience, deep knowledge, and passion for his work. As a continuous learner, he actively seeks out new tools and techniques. With leadership experience and great soft skills, Edgar can work effectively both solo and as a team member.

Main technologies
JavaScript
9 years
Node.js
5 years
React
4 years
Typescript
3 years
AWS
6 years
React
4 years
Additional skills
AdonisJS
Laravel
Flutter
RabbitMQ
Bash
Python
DigitalOcean
MySQL
API
Firebase
MailChimp
WordPress
Express.js
Next.js
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

Tech lead
Dec 2016 - Ongoing7 years 5 months
Project Overview

A national school network that serves about 1000 students across their different campuses, they needed a new tech stack to handle their student's needs.

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Responsibilities:
  • Implemented google classroom for the entire organization (server configuration)
  • Renewed their websites
  • Created a custom CRM
  • Created a custom LMS
  • Implemented a fully managed network system
Project Tech stack:
AWS
Flutter
Node.js
AdonisJS
WordPress
React
Laravel
Senior Full-stack Web Developer
Dec 2022 - Dec 2022
Project Overview

An app designed to track fitness progress. Since its launch, it has been a great success, with all 12 participants regularly using the app to track their fitness progress.

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Responsibilities:
  • Created the entire app in less than a week;
  • Designed a user-friendly interface that made it easy for participants to track their progress and compete with their friends;
  • Developed a robust backend system that ensured accurate fitness data tracking and maintained data privacy and security;
  • Integrated various third-party APIs to provide additional features, such as data storage, GPS tracking in v2, workout logging, and sharing to Telegram;
  • Continuously improved the app based on friends' feedback, adding new features and fixing bugs.
Project Tech stack:
AdonisJS
Typescript
JavaScript
MySQL
AWS
DigitalOcean
Node.js
Senior Back-end Web Developer
Feb 2022 - Nov 20229 months
Project Overview

A company replaces traditional washing and drying machines in buildings with smart ones. The smart machines had an Arduino brain connected via MQTT to a central broker on a Raspberry Pi, which then connected to AWS.

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Responsibilities:
  • Created multiple apps that ran simultaneously on the Raspberry Pi, which enabled to control and monitor several smart machines at once;
  • Optimized the code to reduce bandwidth consumption, allowing for smoother and more efficient communication between the machines, the Raspberry Pi, and AWS (modem ran on a 3g connection);
  • Developed a remote updater that replaced a paid solution, allowing tumble to save costs while making sure that all machines were running on the latest software versions;
  • Created an onboarding tool to deploy new devices on new premises easily;
  • Developed software for the Raspberry Pi and made modifications to the Arduino;
  • Implemented software for the Internet of Things (IoT);
  • Improved the efficiency and functionality of hardware systems.
Project Tech stack:
AWS
Typescript
Node.js
Bash
RabbitMQ
React
Senior Full-stack Web Developer
Dec 2019 - Dec 20212 years
Project Overview

The goal was to reduce friction in loyalty and cashback programs between businesses, clients, and banks.

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Responsibilities:
  • Created a solid API for third-party services that allowed for smooth integration and communication between the platform and external services;
  • Implemented a financial solution for the company by integrating Stripe, PayPal, and SPEI (Mexico's banking system);
  • Developed a real-time data dashboard (React.js) that provided valuable insights into user behavior, transaction patterns, and overall platform performance;
  • Created data transforming scripts in Python to handle large ingest of CSV files provided by the banks;
  • Worked closely with this 3rd party team to improve the overall security of the project.
Project Tech stack:
JavaScript
Python
Typescript
Node.js
React
Tech Lead
Feb 2020 - Jun 20204 months
Project Overview

An initiative to provide relief areas for first responders and health workers working in COVID hospitals and staying for long shifts without going home.

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Responsibilities:
  • Set up the server on Digital Ocean Software development
  • Connected 3rd party APIs (Google maps, Firebase)
  • Acted as support for all the team and people involved with pickup/delivery
Project Tech stack:
Laravel
AWS
MailChimp
Firebase
Flutter
React
Senior Full-stack Web Developer
Jan 2019 - Feb 20201 year 1 month
Project Overview

The company specializes in agile methodology in-person courses and seminars. The app required that the notifications and grading system be real-time, so a separate Node.js-Soketi server was implemented to use Websockets and achieve real-time communication between server and client.

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Responsibilities:
  • Created a fully-fledged solution, enabling the company to transition from in-person courses and seminars to a fully remote solution;
  • Developed a web platform and mobile apps for iOS and Android using a single codebase in Flutter, resulting in an easier development process;
  • Integrated 3rd party APIs and AWS services into the platform to provide a seamless user experience and high-quality content streaming (MUX, AWS wrapper);
  • Led a team of one developer and one designer to deploy the platform and apps.
Project Tech stack:
Laravel
AWS
API
Flutter
Node.js
React

Education

2016
Computer Science
bachelor

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