Tomas Madariaga
Mentor
Rising Codementor
US$8.00
For every 15 mins
ABOUT ME
Full-stack developer 12+ years of experience
Full-stack developer 12+ years of experience
Experienced Full-Stack Software Engineer with 11+ years of expertise in building high-traffic, scalable, and complex systems. Proficient in modern JavaScript, with a proven track record of leading teams, mentoring engineers, and delivering well-tested, maintainable, and performance-driven code. Passionate about problem solving, fostering collaboration, and optimizing Core Web Vitals for enhanced user experiences.
Paris (+02:00)
Joined September 2017
EXPERTISE
13 years experience
10 years experience
10 years experience
10 years experience
8 years experience
10 years experience
5 years experience
REVIEWS FROM CLIENTS
Tomas's profile has been carefully vetted and approved as a Codementor. Connect with Tomas now, and leave a review for them once you're done!
EMPLOYMENTS
Staff Full Stack Software Engineer
Adevinta
2018-12-01-Present
- Led a web team of six engineers, mentoring and coaching to ensure growth and productivity. Successfully spearheaded the migration...
- Led a web team of six engineers, mentoring and coaching to ensure growth and productivity. Successfully spearheaded the migration from a PHP monolith to a modern stack (React, Node.js) for Milanuncios, a Spanish marketplace with 30M+ monthly visitors, using server-side rendering (SSR).
- Contributed to Adevinta’s multi-brand, multi-language marketplace platform, powering sites like France’s Leboncoin (110M+ monthly visitors). Using Next.js, React, TypeScript, Node.js, Tailwind, Jest, Cypress, and Go for scalable solutions.
- Developed features end to end, from backend to frontend, with a focus on the frontend. Worked hand in hand with UX and product and bring Figma designs to life. A/B testing. Contributed to Adevinta's open source libraries for tools and components.
- Own and configure Observability & Monitoring. Docker, Kubernetes, AWS. Web performance optimizations Milanuncios, Leboncoin, Coches. On-call team member.
- Own, setup and improved web CI/CD. Github Actions workflow optimization. TDD, clean architecture & DDD. Technical SEO. Microservices with Kotlin and Node.js.
Node.js
PostgreSQL
Redis
View more
Node.js
PostgreSQL
Redis
Elasticsearch
TypeScript
Test driven development
DTD
Docker
React
Technical SEO
Kotlin
JavaScript
Jest
Kubernetes
Microservices
Next.js
Go
Clean Architecture
Elastic Stack
Cypress
Tailwind css
GitHub Actions
Playwright
AWS
View more
Lead Front End Engineer
Redpoints
2018-01-01-2018-12-01
- Led Front-End architecture and development using JavaScript, React & Redux and Node.js at Redpoints, the world's leading...
- Led Front-End architecture and development using JavaScript, React & Redux and Node.js at Redpoints, the world's leading intelligent brand protection software suites.
- Created core functionality and component libraries (web platform). Storybook, Webpack, Rollup, Lerna.
- Led a team of 9 engineers, mentoring and coaching engineers on the team, 1 to 1. Spreading the best engineering and development practices. Actively participated in recruiting, growing the team from 3 to 9 members.
Node.js
TypeScript
React
View more
Node.js
TypeScript
React
JavaScript
Webpack
Redux
Storybook
Rollupjs
View more
Full Stack Software Engineer
Freelance
2015-07-01-2017-12-01
- Front End (React) and Back End (Node.js) development for different clients. Tech e-learning instructor.
- Front End (React) and Back End (Node.js) development for different clients. Tech e-learning instructor.
Node.js
TypeScript
React
View more
Node.js
TypeScript
React
JavaScript
View more