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Eliezer – Python, React, AWS, experts in Lemon.io

Eliezer

From Dominican Republic (UTC-4)

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Full-stack Web Developer
Front-end Web DeveloperStrong senior
Back-end Web DeveloperMiddle-to-senior
6 years of commercial experience
Communications
Construction
Trade
Chatbots
CRM
Customer support software
Web development
Software development
Lemon.io stats

Eliezer – Python, React, AWS

Eliezer is a Full-stack Python/React developer with strong expertise in frontend development, particularly in React and TypeScript. He combines technical proficiency with excellent communication skills, engaging thoughtfully in discussions and demonstrating a proactive learning mindset. An active contributor to the developer community, he is passionate about knowledge-sharing and problem-solving. His ability to articulate complex concepts, optimize performance, and collaborate effectively makes him a valuable asset to any team.

Main technologies
Python
3 years
React
5 years
AWS
4 years
Typescript
6 years
Additional skills
Docker Compose
Docker
AWS Lambda
WebSocket
AWS CloudFormation
Vue.js
Java
Sentry
MongoDB
Amazon ECS
SQL
Redux
Ready to start
To be verified
Direct hire
Potentially possible
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Experience Highlights

Teсh Lead
Jul 2021 - Nov 20243 years 3 months
Project Overview

This is a comprehensive trading ecosystem that integrates multiple applications. It provides traders with a unified platform to execute trades, perform technical and fundamental analysis, manage orders, receive real-time alerts, and access educational resources.

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Responsibilities:
  • Led the development and architecture of Vue & React widgets;
  • Built front-end libraries to share components between widgets;
  • Built an order management system that ensures authorization on each application using Python-based micro-services;
  • Optimized WebSockets for real-time features like chart updates and trade execution;
  • Integrated AWS services to ensure scalability and reliability;
  • Wrote functional and API tests to ensure system robustness.
Project Tech stack:
React
Python
Vue.js
AWS CloudFormation
AWS Lambda
AWS
WebSocket
Full-stack Developer
Sep 2023 - Sep 20241 year
Project Overview

This is a real-time communication platform designed to provide traders with a seamless chat experience similar to Discord. It allows users to engage in live discussions, share insights, and receive automated alerts while trading.

Skeleton
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Responsibilities:
  • Led the front-end development to create an intuitive and responsive chat UI;
  • Implemented WebSocket communication for real-time messaging and market alerts;
  • Designed the role-based access system, ensuring secure and structured user permissions;
  • Optimized the chat system’s performance, reducing latency and improving real-time interactions;
  • Integrated AI-driven alerts to provide users with automated trading insights.
Project Tech stack:
React
AWS
MongoDB
Amazon ECS
AWS Lambda
Docker
Python
Full-stack Developer
Dec 2018 - Dec 20224 years
Project Overview

This is a construction project management platform designed to streamline project planning, team collaboration, and organizational workflows. It provides tools for task management, scheduling, team coordination, and meetings, making it an all-in-one solution for managing construction projects efficiently.

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Responsibilities:
  • Led the front-end development, ensuring a scalable, reusable, and responsive UI using React;
  • Worked on complex backend challenges in Java (Spring Boot), improving performance;
  • Implemented WebSocket communication via Python (AWS Lambda).
  • Integrated the backend (Java Spring Boot) with the front end, ensuring smooth communication and a seamless user experience;
  • Developed organization and team management features, allowing flexible role-based access;
  • Optimized database queries using MySQL;
  • Implemented functional and unit tests to enhance system stability and prevent regressions.
Project Tech stack:
React
Java
Python
AWS
AWS Lambda
Amazon ECS
Front-end Lead
Oct 2019 - Aug 20211 year 10 months
Project Overview

This is a comprehensive System Management Dashboard designed to streamline and optimize customer interactions, support ticket management, order processing, and user permissions. The system provides an intuitive interface for customer service representatives to efficiently handle requests, track customer history, and resolve issues quickly.

Skeleton
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Responsibilities:
  • Developed and optimized the front-end architecture;
  • Implemented the Factory design pattern to ensure reusable code between two dashboards;
  • Integrated API services for seamless communication between the front-end and Java-based backend;
  • Added the Null-Object pattern to prevent common runtime errors and improve application stability;
  • Optimized load time, reducing it by 75% for a faster user experience;
  • Enhanced link reportability, making URLs shareable and trackable for better navigation and analytics.
Project Tech stack:
Java
React
Sentry

Education

2019
Software Developenet
Associate Degree

Languages

Spanish
Advanced
English
Advanced

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