Senior Full Stack Engineer

Ersilia; Barcelona; Híbrido; EUR 70.000 - 100.000; Jornada completa

Descripción de la vacante

Ersilia in Barcelona is seeking a Senior Full Stack Engineer to own product features across frontend and backend. You will build with React on the frontend and Node.js on the backend, delivering high-quality software used by customers daily.

Based in Barcelona with a hybrid model, you will collaborate with Product and Design, influence technical decisions, ensure code quality through reviews and testing, and contribute across the full product lifecycle.

Formación

• 4+ years of experience with React, Node.js and TypeScript.
• Strong experience building production web applications.
• Good understanding of relational databases (PostgreSQL).
• Ability to work autonomously.
• English plus Spanish is advantageous.

Responsabilidades

• 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.

Conocimientos

React

Node.js

TypeScript

PostgreSQL

AWS

Autonomy

English

Spanish

Descripción del empleo

The Senior Full Stack Engineer will build and own product features

working closely with the tech leadership. You will contribute to both frontend and backend systems, helping ship high quality software that is used daily by customers.

This role is focused on delivery, quality and collaboration with the ability to influence technical decisions.

Your 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

What we are looking for:

• Strong experience building production web applications
• Minimum 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 level English plus Spanish would be advantageous

Tech Stack: Typescript, NodeJs, React, PostgreSQL and AWS

Based in Barcelona along with a hybrid working model