Alejandro is available for hire

Alejandro Martínez Cornes

Verified Expert in Engineering

Full-stack Developer

Montevideo, Montevideo Department, Uruguay

Toptal member since July 12, 2024

Expertise

Back-end Web Development Web Scraping Data Scraping Git Node.js JavaScript Agile Express.js SQL Amazon S3 (AWS S3)Python REST APIs

Bio

Alejandro is a full-stack developer with more than three years of professional experience. He has successfully deployed eCommerce and fintech projects across diverse teams, demonstrating expertise in optimizing complex systems, implementing scalable cloud technologies, and developing robust APIs in enterprise environments. Alejandro is proficient in multiple programming languages and strongly focuses on back-end systems with Node.js and Rust.

Portfolio

Cencosud

AWS Lambda, Amazon DynamoDB, Amazon CloudWatch...

Bootia

TypeScript, Node.js, Express.js, Sequelize, PostgreSQL, SQL, Rust, Amazon EC2...

eFinanzas

JavaScript, Tailwind CSS, Python, MySQL, Node.js, Rust, CSS, Actix Web...

Experience

Node.js - 4 years Python 3 - 3 years Amazon Web Services (AWS) - 3 years TypeScript - 3 years REST APIs - 3 years Rust - 2 years Distributed Systems - 2 years CI/CD Pipelines - 1 year

Availability

Part-time

Preferred Environment

Rust, Node.js, TypeScript, Amazon Web Services (AWS)

The most amazing...

...accomplishment I've achieved was co-founding the 1st Uruguayan cryptocurrency exchange, micrypto.uy. I implemented UI components with React and Rust-based APIs.

Work Experience

Back-end Developer

2024 - 2024

Cencosud

Decreased system response time by 100% by optimizing the eCommerce microservices and improving database queries.
Enhanced deployment processes by 30%, managing cloud infrastructure for multiple projects using Terraform.
Led the implementation of best practices and design patterns, standardizing the deployment processes.

Technologies: AWS Lambda, Amazon DynamoDB, Amazon CloudWatch, Amazon Simple Notification Service (SNS), Amazon Simple Queue Service (SQS), AWS IAM, Terraform, TypeScript, NestJS, Node.js, Agile, Git, Amazon S3 (AWS S3), Amazon EC2, CI/CD Pipelines, Distributed Systems, Networking, Amazon Web Services (AWS), JavaScript, Computer Science, APIs, Serverless, Back-end Development, JSON, REST, Database Architecture, NoSQL, Clean Architecture, Back-end, Cloud Infrastructure, DevOps, Object-oriented Programming (OOP), Microservices, Kubernetes, Docker, Jest, NPM, Data Pipelines, Cloud Engineering, Prompt Engineering, Progressive Web Applications (PWAs), GraphQL, Scalability, Design Patterns, CSV File Processing, CSV, Software Architecture

Back-end Developer

2022 - 2023

Bootia

Achieved 100% project delivery success by integrating cloud services and API development in Node.js.
Implemented AWS auto-scaling configurations, transforming the system from frequent downtime to consistent response times.
Accomplished a 20% increase in user engagement by implementing Apple Push Notifications and geolocation services.

Technologies: TypeScript, Node.js, Express.js, Sequelize, PostgreSQL, SQL, Rust, Amazon EC2, Amazon S3 (AWS S3), Git, CSS, Actix Web, Test-driven Development (TDD), Agile, AWS IAM, Networking, Amazon Web Services (AWS), JavaScript, Computer Science, AWS Lambda, APIs, Serverless, Back-end Development, JSON, REST, Database Architecture, NoSQL, Clean Architecture, Back-end, Full-stack, Cloud Infrastructure, Startups, DevOps, Object-oriented Programming (OOP), Jest, NPM, Data Pipelines, Cloud Engineering, Prompt Engineering, Progressive Web Applications (PWAs), GraphQL, Twilio, Scalability, Design Patterns, CSV File Processing, CSV, Software Architecture, Event-driven Design (EDD), Django, Django REST Framework, Pytest, Heroku, Google Cloud, Firebase

Full-stack Developer

2021 - 2023

eFinanzas

Implemented React and Tailwind CSS solutions and leveraged user experience best practices to enhance the overall UI/UX.
Achieved system stability, successfully handling over 1,000 daily requests.
Enhanced product delivery times by 30%, optimizing back-end deployment processes.

Technologies: JavaScript, Tailwind CSS, Python, MySQL, Node.js, Rust, CSS, Actix Web, Test-driven Development (TDD), Domain-driven Design (DDD), Python 3, Blockchain, Git, Express.js, Distributed Systems, Networking, Amazon Web Services (AWS), HTML, Computer Science, React, APIs, Back-end Development, JSON, REST, Full-stack Development, Database Architecture, Back-end, Full-stack, Cloud Infrastructure, Startups, DevOps, Object-oriented Programming (OOP), Java, Single-page Applications (SPA), DigitalOcean, Next.js, Redux, Jest, NPM, Data Pipelines, Cloud Engineering, Google Cloud Platform (GCP), Progressive Web Applications (PWAs), Design Patterns, Mathematics, CSV File Processing, Chart.js, CSV, Data Visualization, Web Scraping, Data Scraping, Website Data Scraping, Selenium, Software Architecture, Event-driven Design (EDD), Django, Django REST Framework, Pytest, Heroku, Google Cloud, Firebase

Web Developer

2016 - 2019

Freelance Clients

Developed a Shopify web store for a local Uruguayan footwear company.
Took charge of domain and hosting management, advertising campaigns, and UX/UI improvements.
Focused on web stock and product management. Worked closely with the store staff on stock updating.

Technologies: Web Hosting, Networking, HTML, Computer Science, Back-end, Cloud Infrastructure, Startups, Object-oriented Programming (OOP), Single-page Applications (SPA), NPM, Data Pipelines, Laravel, CSV File Processing, CSV, Data Visualization, Web Scraping, Data Scraping, Website Data Scraping, Selenium

Experience

MiCrypto

https://micrypto.uy/

MiCrypto is the 1st Uruguayan cryptocurrency exchange I helped create as a founding member. The idea was to offer an effortless experience for buying and selling crypto in the local Uruguayan market while fostering crypto adoption locally.

InbestTool

A stock analysis platform that serves as a stock trading analysis app for investors. It uses multiple APIs for stock analysis data and makes custom algorithmic operations to determine the level of investment appeal. Also, the app allows you to keep track of your current investments, register what you have invested in it, and check if you are winning or losing with the current value.

Law App 2.0

A Flask (Python) web app for lawyers to manage cases, legal documents, clients, and payments. It was closely developed with a lawyer to gain insider information on how to fulfill their specific requirements.

Education

2021 - 2023

Associate Degree in Computer Science

Universidad de la República - Montevideo, Uruguay

Certifications

JANUARY 2021 - PRESENT

Ultimate Rust Crash Course

Udemy

AUGUST 2020 - PRESENT

Python 3 Programming

University of Michigan | via Coursera

AUGUST 2019 - PRESENT

Full-stack Web Developer Nanodegree

Udacity

Skills

Libraries/APIs

Node.js, REST APIs, React, Chart.js

Tools

Sequelize, Git, Pytest, AWS IAM, Amazon CloudWatch, Amazon Simple Notification Service (SNS), Amazon Simple Queue Service (SQS), Terraform, NPM

Languages

JavaScript, SQL, Rust, Python, Python 3, TypeScript, PHP, GraphQL, HTML, CSS, Java

Frameworks

Express.js, Selenium, Django, Django REST Framework, NestJS, Tailwind CSS, Flask, Next.js, Laravel, Redux, Jest

Paradigms

Agile, Design Patterns, Test-driven Development (TDD), REST, Clean Architecture, DevOps, Object-oriented Programming (OOP), Event-driven Design (EDD), Microservices

Platforms

Heroku, Amazon EC2, Amazon Web Services (AWS), Docker, DigitalOcean, Google Cloud Platform (GCP), Twilio, AWS Lambda, Blockchain, Kubernetes, Firebase

Storage

Amazon S3 (AWS S3), PostgreSQL, MySQL, JSON, Database Architecture, Data Pipelines, Amazon DynamoDB, NoSQL, Google Cloud

Other

Back-end Development, Back-end, Web Scraping, Data Scraping, Web Development, Progressive Web Applications (PWAs), CSV File Processing, CSV, Website Data Scraping, Software Architecture, Domain-driven Design (DDD), Actix Web, Distributed Systems, Networking, APIs, Serverless, Full-stack Development, Full-stack, Cloud Infrastructure, Startups, Single-page Applications (SPA), Cloud Engineering, Prompt Engineering, Scalability, Linear Algebra, Data Visualization, Computer Science, Web Hosting, CI/CD Pipelines, Mathematics

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