Senior Full-Stack Engineer - React/Node (Barcelona, Hybrid)

Ersilia; Barcelona; Hybrid; EUR 65,000 - 95,000; Full time

Job summary

Ersilia is seeking a Senior Full Stack Engineer to design, build, and own product features, collaborating with tech leadership to deliver high-quality software used daily by customers.

You will work across frontend and backend, focusing on delivery, quality, and collaboration. The role emphasizes autonomous work and strong engineering practices, with a hybrid model based in Barcelona.

Qualifications

• Experience building production web applications.
• 4+ years experience with React, Node.js and TypeScript.
• Good understanding of relational databases (PostgreSQL or similar).
• Experience working across the full product lifecycle.
• Ability to work autonomously.
• Advanced English; Spanish would be advantageous.

Responsibilities

• Design, build, and maintain fullstack features across the products.
• Work with React on the frontend and Node.js on the backend.
• Collaborate closely with Product and Design to turn requirements into solutions.
• Ensure code quality through testing, reviews and best practices.
• Contribute to technical discussions and propose improvements to the codebase.

Tools

React

Node.js

TypeScript

PostgreSQL

AWS

Job description

Ersilia is seeking a Senior Full Stack Engineer to design, build, and own product features, collaborating with tech leadership to deliver high-quality software used daily by customers.

You will work across frontend and backend, focusing on delivery, quality, and collaboration. The role emphasizes autonomous work and strong engineering practices, with a hybrid model based in Barcelona.