Alejandro Valencia

Full-stack Software Engineer

10+ years of experience building scalable web applications. Specialized in Frontend development with React and TypeScript since 2017, delivering MVPs and full platforms for startups and tech-driven teams.

Buenos Aires, Argentina
alejandro.d.valencia@gmail.com
valenciahq.com

Core Skills

Professional Skills
Full-Stack Web Development
Rapid Prototyping & MVP Delivery
Product Thinking & User-Centered Design
Codebase Scalability & Maintainability
Cross-functional Collaboration
Agile Methodologies
Languages
Spanish
Native
English
B2/C1 Professional

Tech Stack

Technologies & Tools
Modern technologies I use to build scalable applications
JavaScript
TypeScript
React.js
Next.js
Remix
Node.js
Express.js
NestJS
PostgreSQL
Supabase
MongoDB
Redux Toolkit
Zustand
Tailwind CSS
AWS
Vercel
Cypress
Jest

Work Experience

Founding Engineer
Bondly
09/24 - Present

Owned full lifecycle. Launched cookie consent, rebuilt scheduling tool, improved SEO and tracking.

Next.js
Remix
NestJS
Supabase
TypeScript
AI tools
Freelance Developer
Independent
2023 - Present

Building high-performance web applications and MVPs. Collaborated with CTOs and CEOs on startup initiatives.

Next.js
React
TypeScript
Tailwind CSS
AWS Serverless
Senior Full Stack Engineer
StackZone
03/22 - 08/23

Improved WebApp via refactoring, mentoring, and TS best practices. Built cost modules and Serverless APIs.

React
TypeScript
AWS
Redux-Saga
Cypress
PostgreSQL
Lead Frontend Developer
Commit Studio
11/21 - 03/22

Led feature development and team support. Delivered credit partner platform (PedidosYa) and e-commerce CLI.

Next.js
TypeScript
MySQL
Redux-Toolkit
Sr Software Engineer
Santander Tecnologia
06/20 - 11/21

Frontend lead for Checks team. Built microsites and BFF with NestJS. Led internal React training.

React
NestJS
TypeScript
Redux-Toolkit
Software Engineer
ParkAssist
06/20 - 11/21

Developed parking admin platform using AWS and React. Delivered performant client-side features.

React
TypeScript
Redux
AWS IAM
IoT
DynamoDB

Education & Certifications

Education

Superior Software Development Technician

ISTEA - Tertiary Degree

2014 - 2017

Certifications

Epic React

Kent C. Dodds (epicreact.dev)

CSS-in-JS

Josh W. Comeau (css-for-js.dev)

Let's Work Together

Ready to build something amazing? I'm always open to discussing new opportunities and interesting projects.