My name is Alexei Alayo Rondón

Especialized in Backend, DevOps, Data and AI

Summary

9+ Years of experience as a Developer in Python, C# and others.

Experienced in applied math, digital image processing, web apps and public cloud.

Problem solver and self-managed interested in the applications of math in software development and vice versa.

Mathematics professor at university and researcher in artificial intelligence and pattern recognition.

Education

Education

  • ⮚ 2009 - 2014, Bachelor in Computer Science, UCI (Universidad de Ciencias Informáticas)

Languages

  • ⮚ Languages: Spanish (Native)
  • ⮚ English (Fluent: Written/ Spoken, B2)
Language

Work experiences

Mar 2021 – now Software Engineer, Python Developer at ENGADI (freelancer)
Description

As a member of a team, we develop a platform for manage sensor and actuators in the agriculture field with AWS IoT Core, Lambda, API Gateway, DynamoDB and others. (https://develop.controlplusgrow.com/dashboard)

  • ⮚ We implemented DynamoDB single table design.
  • ⮚ We wrote and manage more than ten AWS Lambda functions.
  • ⮚ We comunicated and reach lambda function through API Gateway as well as MQTT protocol with IoT Core and Node-Red.
  • ⮚ To deploy lambda functions we used GitLab CICD platform together with AWS CLI.
  • ⮚ We Used AWS Cognito to manage users.
  • ⮚ We manage lambda exceptions delivering errors from CloudWatch to a Discord channel.
Technology

#Python

#AWS Lambda

#API Gateway

#IoT Core

#MQTT

#DynamoDB

#Cognito

#CloudWath

Mar 2021 – now Software Engineer, Python Developer at CHATTIGO
Description
  • ⮚ To retrieve, transform and load large amount of data from differents datasources like SQL Server, Apache Druid and MongoDB.
  • ⮚ To execute SQL queries to make reports.
  • ⮚ Build a reporting component with Flask, implemented with Dependency Injection asyncio, pandas and other tools.
  • ⮚ We are beginning to migrate the data stack to Microsoft Azure with Databricks, DataFactory and other Azure tools. Basically building a Lakehouse.
Technology

#Python

#Pandas

#Matplotlib

#Numpy

#Azure Databricks

Sept 2020 – Feb 2021 Software Engineer, Remote work at ELROI SUPPLIES
Description
  • ⮚ Develop an e-Commerce backend upon Shopify with NodeJS and AWS.
  • ⮚ Design and develop a complete serverless architecture with AWS (Lambda, API Gateway, SQS, SNS, Pub/Sub, CloudFront, etc.)
  • ⮚ Write Python scripts to deploy and manage AWS Lambda Functions and other resources.
  • ⮚ Develop Stripe payment integration.
  • ⮚ DevOps and infrastructure manage with Terraform and Python.
  • ⮚ Write bash script for CI/CD with GitLab and other minor tasks.
Technology

#Javascript

#Node

#AWS

(IAM, CloudWatch, Lambda, S3, DynamoDB, SQS, SNS, EC2, Api Gateway)

#Python

#Terraform

#AWS SDK for Python

#AWS CLI

Jun 2020 - Ago 2020 Software Engineer, Remote work at Gap-Commerce
Description
  • ⮚ Backend development of an e-Commerce platform in NodeJS, GraphQL and AWS.
  • ⮚ Develop and maintain a serverless backend with Apollo GraphQL Lambda.
  • ⮚ Understand and develop a Pub/Sub architecture.
  • ⮚ Migrate the NodeJS backend from Javascript to Typescript.
Technology

#AWS

(Lambda, S3, DynamoDB, SQS, SNS)

#Javascript

#Typescript

#NodeJS

#Apollo

#GraphQL

Sept 2019 – May 2020 Instructor Professor, Mathematics Department, UCI
Description
  • ⮚ Teach mathematics at university, mainly multivariable calculus, numerical series and differential equations.
  • ⮚ Research in artificial intelligence and pattern recognition.
Technology

#MatLab

#Python

Sept 2014 - Aug 2019 Jr. Software Engineer, Identification and Digital Security Center, UCI
Description
  • ⮚ Develop a fingerprint identification framework, a group of biometric algorithms for performance evaluation.
  • ⮚ Digital Image Processing (DIP) and Signal Image Processing (SIP) with MatLab, C# and C++.
  • ⮚ Develop a web application for the Aeronautic Institute of Cuba to manage identification of aeronautic personnel. Develop, deploy, support and project leader.
Technology

#C#

#C++

#MatLab

#PHP

#Symfony

#HTML

#CSS

#Javascript

#SQL

Papers

Other Training

  • ⮚ Course: “Numerical Analysis and Computing with Python” (2020).
  • ⮚ Course: “Introduction to Artificial Neural Networks” (2020)
  • ⮚ Course: “Database optimization” (2021)
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