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Alexandro – React, Django, Python, experts in Lemon.io

Alexandro

From Ecuador (UTC-5)flag

Full-stack Web Developer|Senior
Back-end Web Developer|Strong senior
Tech lead
Lemon.io stats
11
projects done
4206
hours worked
4
offers now 🔥

Alexandro – React, Django, Python

With strengths in architecture, AWS, Python ecosystem, and database internals, Alexandro is adept at solving complex challenges, particularly in microservices. Moreover, he's proficient in React.js (having authored an open library utilized by other companies), and has experience working on AI-powered projects. Alexandro's extensive experience, enthusiasm for creating numerous pet projects to deepen his technical prowess, and exceptional soft skills make him a valuable addition to any development team or project.

11 years of commercial experience in
Adult
AI
Analytics
Data analytics
E-commerce
Edtech
Gambling
Legal tech
Communication tools
Dev tools
Platforms
SaaS
Main technologies
React
7 years
Django
7 years
Python
10 years
JavaScript
8 years
AWS
4 years
Typescript
3.5 years
Node.js
9 years
Additional skills
Next.js
Docker
MongoDB
Kubernetes
CI/CD
Terraform
PostgreSQL
Amazon S3
AWS Lambda
FastAPI
Microsoft Azure
GCP
OpenAI
Web scraping
LangChain
Amazon EC2
Redis
Chroma.js
Vector Databases
RAG
Django REST
Kafka
GraphQL
AI
SQLAlchemy
MySQL
Rewards and achievements
Client's favourite
Open source enthusiast
Testimonials
#14913021587Senior Full-Stack Developer, Python, React, full-time, 1-3 months

"Alex is a great engineer. We just think the part of the platform we had him working on was premature. We will reach back out when we need that help, and hopefully he is still available. "

#17733347978Senior Full-stack Developer to work on event platform from scratch, PT/FT

"We have completed our project! He did a great job "

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Experience Highlights

CTO
Sep 2022 - Ongoing3 years 4 months
Project Overview

The third software development startup. This company has a distinct and fascinating history and has established a strong foothold in the Ecuadorian market. The project entails handling a diverse range of assignments, encompassing web development, mobile app creation, blockchain solutions, and even game development.

Responsibilities:
  • Guided developers in selecting appropriate technologies;
  • Efficiently negotiated and closed deals with government entities;
  • Led and oversaw project completion, ensuring successful delivery in collaboration with the development team;
  • Engaged in mentoring team members.
Project Tech stack:
Angular
React Native
Electron.js
React
AWS
Next.js
PayPal Api
Stripe API
Distributed Systems
Adobe XD
Figma
Senior Full-stack Developer
Mar 2025 - Sep 20255 months
Project Overview

The system learns about your business, accurately answers your most complex questions, and takes actions to accelerate revenue. It is a segmentation engine for customers and products across your online store.

Responsibilities:
  • Owned the AI agent, a project that consisted of a chatapp, a slackbot and a mobile app. the core was an MCP server that was connected to the customer data and was able to analyze, create segmentation for customers and products and more;
  • Refactored and improved performance of many GraphQL mutations and queries;
  • Migrated and synced services in AWS with Terraform;
  • Created deployment pipelines in Github Actions.
Project Tech stack:
React
Celery
Django
GraphQL
Apollo Client
LangChain
AI
Redis
Kubernetes
AWS
GitHub Actions
Senior Full-stack Developer
Jul 2024 - Jul 20251 year
Project Overview

A company that focused on the data extraction from lottery websites and other platforms like this.

Responsibilities:
  • Developed and maintained infrastructure to extract, parse, ingest, and process our scrapers;
  • Created and maintained scrapers from multiple websites using many different techniques;
  • Developed signals, alerts, and other communication systems in Telegram channels and bots.
Project Tech stack:
Python
BeautifulSoup
AWS
DigitalOcean
Redis
Cron
XML
Curl
Playwright
Selenium
Selenium WebDriver
React
Django
OAuth
Senior Full-stack Developer
Oct 2023 - Mar 20244 months
Project Overview

This is a cutting-edge data governance platform designed to help organizations manage, protect, and optimize their data assets. The platform provides comprehensive tools for data cataloging, policy management, compliance tracking, and data quality monitoring with the help of the most modern AI technologies. With this platform, businesses can ensure their data is accurate, secure, and compliant with industry regulations, enabling them to make data-driven decisions with confidence.

Responsibilities:
  • Improved the performance of the frontend by creating a versatile workers framework;
  • Successfully transcribed the entire project to TypeScript;
  • Recreated the user data catalog page;
  • Developed a secure user configuration module enabling customized data access for users and groups, with self-defined functions and authentication middlewares;
  • Enhanced the efficiency of data tagging processes through multithreading techniques;
  • Leveraged AI to improve metadata tagging, reducing operational costs and increasing application efficiency;
  • Established a robust development environment from scratch in AWS;
  • Implemented automated CI/CD pipelines using CircleCI and GitHub Actions;
  • Utilized Terraform and Ansible to manage infrastructure.
Project Tech stack:
React
AWS
FastAPI
Microsoft Azure
Terraform
Kubernetes
Tailwind CSS
OpenAI
Azure Functions
Python
DynamoDB
Senior Full-stack Web Developer / Tech Lead
Jul 2020 - May 202110 months
Project Overview

A marketing platform for lawyers that helps them find leads across multiple different states in the US. They offer real-time services and asynchronous communication systems like chat, forms, and email marketing, as well as technical assistance.

Responsibilities:
  • Redesigned the Front-end internal dashboard and transitioned from angular js 1.2 to angular js 1.8 (latest version);
  • Rearchitectured the database for better performance, increasing report speeds up to 10x;
  • Performed seamless integrations with various 3rd party CMS platforms such as Captoram, Trustpilot, Salesforce, Filevine, and others;
  • Successfully transitioned from a stateful chat server, which posed numerous challenges, to an efficient serverless approach.
Project Tech stack:
React
Angular.js
Angular
Django
RabbitMQ
Celery
Tornado
AWS
GCP
Electron.js
Full-Stack Web Developer / Team Lead
Oct 2019 - Jan 20211 year 3 months
Project Overview

An academy for students that want to learn about trading, blockchain, and the stock market.

Responsibilities:
  • Played a pivotal role as the main developer, contributing to the entire platform's construction from scratch, including both Front-end and Back-end development;
  • Collaborated with another Front-end developer and a UI/UX designer who joined the team to enhance the platform's functionality and user experience;
  • Assumed the additional role of a teacher, conducting real-time classes in Zoom to educate students about blockchain and related topics.
Project Tech stack:
React
Express.js
Django
Flask
PayPal Api
AWS
GCP
Electron.js
Software Developer
Sep 2014 - Jun 20183 years 9 months
Project Overview

Software developer, data analyst. Developing an ERP written in React (it was first written in jquery, html and css, but eventually migrated to React) for the company to get the status of the company and clients as well as running reports generated in excel with Python scripts. Developing business logic for PLCs in Ladder. Developing business logic for Arduino controllers in C++. Windows automation scripts written in VB. Simulation of hardware and software using MATLAB and SOLIDWORKS.

Responsibilities:
  • created ERP for company managing process using html css and js
  • migrated ERP to react
  • developed data analysis scripts using python, pyspark and pandas
  • automated processes remotely for companies using PLCs, arduino, and other microcontrollers
Project Tech stack:
React
HTML
CSS
Bootstrap
Arduino
Embedded Systems
Python
DigitalOcean
JavaScript

Education

2019
Mechatronics
Bachelor's Degree

Languages

German
Intermediate
Spanish
Advanced
English
Advanced

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