Ernesto Alonso

Building high-quality, scalable products with clean code and smart solutions

Get To Know Me

About Me

Crafting digital experiences with passion, precision, and purpose

👋Hello, I'm Ernesto Alonso

A passionate Full Stack Developer and  Typescript enthusiast with 3+ years of experience crafting digital experiences that users love.

I specialize in building scalable web applications using React, Next.js, and TypeScript. With a strong focus on backend development using Node.js, Express, and NestJS, I’m passionate about leveraging TypeScript across the stack.

I´m to expand into mobile and desktop apps using React Native and Electron. Constantly learning, I thrive on turning complex problems into elegant, user-centered solutions. I believe in continuous learning and staying at the forefront of technological innovation.

Core Technologies

AI IntegrationReactNext.jsTypeScriptNode.jsExpressNestjsDevopsAWSLinux OS

FrontEnd Developer

Open Innovate Company SAC

2023 — 2024

Delivering high-quality projects across diverse domains, specializing in web applications, API development, and cloud integrations.

Top Rated • 91% Success Score

Backend Developer

INVESTAC SAC

2022 — 2023

Development of the server responsible for managing and handling large amounts of data using the client with graphql.

Agricultural IT Specialist

Let's Connect

ernesto134alonso123@
3rnest0-dev.vercel.app/en
Lima, Perú

Achievements

Best searched on LinkedIn
Expert in Web developer
16+ Projects Delivered

Available for Hire

Open to New Opportunities
Open to Relocation
Remote & On-site Available
Tech Arsenal

Technology Stack

Technologies I use to bring ideas to life

Backend

Node.js

Expert
4 years exp

Express

Expert
3 years exp

Nestjs

Expert
2 years exp

GraphQL

Intermediate
2 years exp

Socket.io

Intermediate
1 year exp

Hono

Intermediate
2 years exp

ASP.NET Core

Beginner
1 year exp

Spring Boot

Beginner
1 year exp

Frontend

React

Expert
3 years exp

Next.js

Expert
3 years exp

Angular

Intermediate
1 year exp

Astro

Beginner
1 year exp

TypeScript

Expert
3 years exp

JavaScript

Expert
3 years exp

Tailwind CSS

Expert
3 years exp

Flutter

Beginner
1 year exp

Database

PostgreSQL

Expert
3 years exp

MySQL

Intermediate
3 years exp

MongoDB

Intermediate
1 year exp

Oracle DB

Intermediate
1 year exp

Cloud & DevOps

Git

Expert
5 years exp

AWS

Intermediate
2 years exp

Firebase

Intermediate
2 years exp

Docker

Intermediate
2 years exp

GitHub Actions

Intermediate
2 years exp

Azure

Beginner
1 year exp

AI & Integration

OpenAI

Intermediate
2 years exp

Stripe

Intermediate
2 years exp

LangChain

Beginner
1 year exp

Vercel AI SDK

Beginner
1 year exp
Professional Journey

Experience

My professional journey and the impact I've made across different domains

February 2024 — November 2024

FrontEnd Developer

Open Innovate Company SAC

Delivered high-quality projects across diverse domains, including web and mobile applications, API development, and cloud integrations (AWS).

Key Achievements

Achieved Top-Rated status with a 91% job success score
Consistently praised for skillfulness, quick learning, and strong communication
Earned repeated engagements through reliability and expertise

Technologies & Skills

TypescriptNode.jsAWSTailwindCSSOpenAI APINextjs
November 2022 — January 2023

Backend Developer

INVESTAC SAC

Spearheaded the shift from paper-based processes to integrated HIMS and PACS platforms, developing backend services, implementing business logic, managing file systems, and ensuring data security compliance.

Key Achievements

Designed and implemented backend APIs and business logic based on client requirements
Collaborated with frontend teams to ensure smooth data flow and system integration
Defined and structured database architecture and optimized relational data models

Technologies & Skills

NodejsNestjsGraphQLOracle DBGithub Actions
3+
Years Experience
10+
Projects Completed
91%
Success Rate
Portfolio Showcase

Featured Projects

Discover my latest work in web development, and digital innovation

Web Application
Live
6 months

CanvasClone.com

Canvas LMS Fullstack Clone

A professional clone of the Canvas LMS platform, built to replicate its core features including course management, user roles, assignments, and messaging. Designed with scalability, usability, and TypeScript best practices in mind.

Key Features

  • Course creation and enrollment system
  • Student and instructor role management
  • Assignment creation, submissions, and grading
  • Integrated discussion boards and messaging
  • Authentication with Clerk and role-based access
  • Modern and accessible UI using shadcn/ui
  • Mobile-responsive layout with Tailwind CSS
  • Dark mode support and clean visual hierarchy

Deliverables

  • Production-ready Canvas LMS clone
  • Backend architecture using Hono and Neon
  • Course, user, and grading management flows
  • Full authentication flow with Clerk
  • Frontend with Next.js and TypeScript
  • Database schema designed with Drizzle
  • Responsive and accessible UI
  • Optimized for scalability and maintainability

Technology Stack

Next.jsTypeScriptTailwind CSSshadcn/uiClerk AuthenticationDrizzleHonoNeon (PostgreSQL)ZodReact Hook Form
Web Application
Live
4 months

JiraClone.com

Jira Fullstack Clone for Agile Teams

A robust full-stack clone of Atlassian's Jira platform, designed for agile task and project management. It replicates core Jira features such as boards, issues, status workflows, and user assignments, using a modern tech stack focused on TypeScript and performance.

Key Features

  • Kanban-style task boards with drag-and-drop support
  • Custom issue creation with priorities and statuses
  • User authentication and role-based access
  • Project organization and multi-board support
  • Task comments and activity logging
  • Responsive UI with modern design patterns
  • Optimized backend architecture with scalable routes
  • Persistent state with database integration

Deliverables

  • Functional Jira-like project management system
  • Full CRUD for boards, tasks, and user roles
  • Next.js frontend and Express backend integration
  • Authentication system with JWT
  • Responsive and interactive interface
  • Database schema with PostgreSQL and Prisma
  • Modular architecture for future feature expansion

Technology Stack

Next.jsTypeScriptTailwind CSSZustandShadcn/UIExpressPrismaPostgreSQLJWT AuthenticationReact DnD
Professional Endorsements

Colleague Testimonials

Feedback from peers and managers I've worked with throughout my career

Featured Review
His problem-solving skills are exceptional. Whenever we faced a challenging bug, he was the one who could break it down and find an elegant solution.
5.0
SJ
Sarah Johnson
Senior Developer at TechSolutions Inc

Work Experience Feedback

Professional recognition from colleagues and supervisors

5.0
"A true team player who consistently delivered high-quality code. His attention to detail in the financial modules saved us countless hours in QA testing."
MC
Michael Chen
Project Lead
FinTech Systems
5.0
"His ability to quickly understand complex systems was impressive. He took ownership of our legacy codebase and significantly improved its performance."
DR
David Rodriguez
CTO
EnterpriseSoft
5.0
"Reliable and knowledgeable, he was our go-to person for API integrations. His documentation was always thorough and made onboarding new team members easier."
EW
Emily Wilson
Product Manager
DataConnect
Professional Development

Certifications & Courses

Completed professional courses from Udemy and Platzi with recognized instructors.

Verified

React - The Complete Guide 2025 (incl. Next.js, Redux)

Instructor:Academind by Maximilian Schwarzmüller
Platform:Udemy
Completed:March 2023

Skills Gained

React HooksContext APIRedux ToolkitNext.jsReact RouterCustom HooksReact Testing
Verified

Next.js & React - The Complete Guide

Instructor:Maximilian Schwarzmüller
Platform:Udemy
Completed:April 2023

Skills Gained

Next.js App RouterServer ComponentsAPI RoutesMiddlewareSSR/SSGAuthenticationDeployment
Verified

Angular - The Complete Guide (2025 Edition)

Instructor:Maximilian Schwarzmüller
Platform:Udemy
Completed:May 2023

Skills Gained

ComponentsDirectivesServicesRxJSNgRxFormsHTTP Client
Verified

Astro: Modern Web Development

Instructor:Fernando Herrera
Platform:Platzi
Completed:June 2023

Skills Gained

AstroIslands ArchitectureSSGPerformance OptimizationMarkdownComponent Frameworks
Verified

Clean Code and SOLID Principles in JavaScript/TypeScript

Instructor:Stefan Baumgartner
Platform:Udemy
Completed:July 2023

Skills Gained

Clean CodeSOLID PrinciplesDesign PatternsRefactoringTypeScriptTestable Code
Verified

NodeJS - Advanced Concepts

Instructor:Stephen Grider
Platform:Udemy
Completed:August 2023

Skills Gained

Node.jsExpressMiddlewareREST APIAuthenticationPerformance
Verified

NestJS Zero to Hero - Modern TypeScript Backend Development

Instructor:Ariel Weinberger
Platform:Udemy
Completed:September 2023

Skills Gained

NestJSTypeORMMicroservicesAuthenticationTestingWebsockets
Verified

GraphQL with React & Node - Complete Developers Guide

Instructor:Stephen Grider
Platform:Udemy
Completed:October 2023

Skills Gained

GraphQLApolloResolversSchemasSubscriptionsReact Integration
Verified

Microservices with Node JS and React

Instructor:Stephen Grider
Platform:Udemy
Completed:November 2023

Skills Gained

MicroservicesDockerKubernetesEvent BusCI/CDScaling
Verified

Terraform on AWS with SRE & IaC DevOps

Instructor:Edward Viaene
Platform:Udemy
Completed:May 2025

Skills Gained

TerraformAWSInfrastructure as CodeDevOpsSRECloud Automation
Verified

Playwright with TypeScript - Web Automation Testing

Instructor:Deborah Kurata
Platform:Udemy
Completed:March 2025

Skills Gained

PlaywrightTypeScriptTest AutomationE2E TestingCI/CDCross-browser Testing
Verified

Azure DevOps CI/CD Pipelines with YAML and ARM Templates

Instructor:Richard Hooper
Platform:Udemy
Completed:July 2024

Skills Gained

AzureDevSecOpsCI/CDSecurityComplianceInfrastructure
Verified

GitLab CI: Pipelines, CI/CD and DevOps for Beginners

Instructor:Valentin Despa
Platform:Udemy
Completed:September 2024

Skills Gained

GitLabCI/CDSecurity ScanningSAST/DASTAuto DevOpsPipeline Optimization
Verified

Flutter & Dart - The Complete Guide [2025 Edition]

Instructor:Maximilian Schwarzmüller
Platform:Udemy
Completed:December 2023

Skills Gained

FlutterDartState ManagementWidgetsFirebaseMobile Development
Verified

Docker for Node.js Projects

Instructor:Bret Fisher
Platform:Udemy
Completed:November 2023

Skills Gained

DockerContainersNode.jsCI/CDBest PracticesProduction Deployments
15 Professional Certifications
Recognized Instructors
Contact

Let's Work Together

Ready to bring your ideas to life? I'm always excited to work on interesting projects and collaborate with amazing people. Let's create something extraordinary together.

Or reach out directly: