Senior Full Stack Engineer
Role Description & Technical Scope
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
- 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
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Key Details
- Date Posted: 23 Oct 2026
- Location: catalunya
- Employment: Permanent
- Workplace: Hybrid
- Domain: General
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Ersilia
Verified Tech EmployerEnterprise technology firm or security consultancy operating across the UK digital defense ecosystem.
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