Hi! I'm Alejandra Sierra
Tech Lead and Full-Stack Developer with a background in design and UX/UI. I build and lead digital products end to end.
About me...
I started out in design, driven by curiosity and a passion for technology. Self-taught at first, and with professional training later, I gradually moved from visual design into full web development, until I came to lead the development area where I work today.

I currently work as a Tech Lead and Full-Stack Developer at a Legal Tech company, where I combine hands-on programming (frontend and backend) with team coordination, delivery governance and product vision. My dual foundation —design and development— lets me build functional, scalable and user-centered solutions, caring for both the experience and the technical side.

I get involved at every stage of a project, from definition to deployment. I believe commitment, discipline and a strategic mindset are key to building quality products and to helping a team grow.
Skills
Front-end
Vue JS 2/3
Vuex
JavaScript
HTML 5
CSS / SCSS
Sass
Bootstrap
Responsive design
jQuery
WordPress
TypeScript
Angular
Back-end & Cloud
PHP
REST APIs
Postman
SQL
Google Cloud Datastore (NoSQL)
Firebase
Google Cloud Platform
App Engine
Cloud Tasks
Cloud Logging
Git / GitLab
UX/UI & Design
Agile methodologies
Interface design
User Research
Usability
Design systems
Information Architecture
Accessibility
Figma
Adobe XD
Wireframing
Prototyping
Testing
Hotjar
Adobe Photoshop / Illustrator / InDesign
Leadership & methodology
Technical leadership
Team coordination
Sprint management
Code review
Delivery governance
Product definition
Documentation
Teamwork
Personal
Analytical skills
Resolutive
Self-reliant
Creative
Committed
Proactive
Collaborative
Adaptable
Portfolio

Bitácora

See project

Bitácora

See project

Recetas Veggie

See project

Recetas Veggie

See project

Appio

See project

Appio

See project

Woodies

See project

Woodies

See project

Rutinapp

See project

Rutinapp

See project

Bitácora

See project

Bitácora

See project

Recetas Veggie

See project

Recetas Veggie

See project

Appio

See project

Appio

See project

Woodies

See project

Woodies

See project

Rutinapp

See project

Rutinapp

See project

Bitácora

See project

Bitácora

See project

Recetas Veggie

See project

Recetas Veggie

See project
Contact me
Do you have a project in mind, or are you looking for someone who combines development, technical leadership and product vision? I'd love to hear the details and see how I can help. Get in touch and let's talk.
Email
Phone
+34 642 092 992