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# Full-Stack Software Engineer - €35.000 - €40.000 A Year

- **Company:** Biobanco Hospital Sant Joan De Déu
- **Location:** Madrid, Spain (Remote available)
- **Salary:** €35,000.0 - €40,000.0
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Databases, D3.Js, Data Visualization, Design of User Interfaces, Python (Programming Language), PostgreSQL, Performance Tuning, Next.js, SQL Databases, TypeScript, WebSocket, Backend, Git, Webpack, Information Technology, Build Tools, Data Management, Front End Software Development, Restful APIs
- **Published:** July 31, 2026
- **Apply:** https://www.buscojobs.com.es/full-stack-software-engineer-%E2%82%AC-35-000-%E2%82%AC-40-000-a-year-en-madrid-ID-365040021

## About the Role

OverviewJoin to apply for the Full-stack software engineer role at Biobanco Hospital Sant Joan de Déu BarcelonaKey QualificationsAt least 3 years of experience in modern frontend development.Bachelor's degree in computer science or similar.Strong proficiency in React and JavaScript/TypeScript, with a focus on component optimization.Experience in performance tuning (lazy loading, memoization, bundling strategies).
Experience with design systems and UI/UX, with a focus on usability.Ability to structure and transform data for efficient visualization.Experience in data visualization (Plotly.Js, D3.Js, or similar libraries).
Knowledge of Supabase for backend and data management (edge functions, database functions).
Basic knowledge of Python for handling data.Familiarity with Git, SQL, API REST, WebSockets, and SSR (Next.Js is a plus).
Ability to collaborate with other members of the team as well as other departments.Attention to detailFluent in Catalan, Spanish and English.Nice-to-havesExperience with PostgreSQL.Experience in writing automated tests.Knowledge of Bun, Webpack, Babel, and build tool optimization.Experience working in scientific or biomedical environments.Experience with Next.Js or SSR/ISR frameworks to improve performance.BenefitsPermanent contract, 37.5 hours per week.Work on a clinical research project with real-world impact.Flexible hours and the possibility of partial remote work.Autonomy in decision-making within a small but dynamic team.Collaboration with scientific and tech teams.Salary: ***********€ annual gross (according to experience)Seniority levelMid-Senior levelEmployment typeFull-timeJob functionEngineering and Information TechnologyHealth, Wellness & FitnessNote: This description focuses on qualifications, benefits, and job details.
Referrals or unrelated job listings have been removed to improve clarity.

## Description

OverviewJoin to apply for the Full-stack software engineer role at Biobanco Hospital Sant Joan de Déu BarcelonaKey QualificationsAt least 3 years of experience in modern frontend development.Bachelor's degree in computer science or similar.Strong proficiency in React and JavaScript/TypeScript, with a focus on component optimization.Experience in performance tuning (lazy loading, memoization, bundling strategies).Experience with design systems and UI/UX, with a focus on usability.Ability to structure and transform data for efficient visualization.Experience in data visualization (Plotly.Js, D3.Js, or similar libraries).Knowledge of Supabase for backend and data management (edge functions, database functions).Basic knowledge of Python for handling data.Familiarity with Git, SQL, API REST, WebSockets, and SSR (Next.Js is a plus).Ability to collaborate with other members of the team as well as other departments.Attention to detailFluent in Catalan, Spanish and English.Nice-to-havesExperience with PostgreSQL.Experience in writing automated tests.Knowledge of Bun, Webpack, Babel, and build tool optimization.Experience working in scientific or biomedical environments.Experience with Next.Js or SSR/ISR frameworks to improve performance.BenefitsPermanent contract, 37.5 hours per week.Work on a clinical research project with real-world impact.Flexible hours and the possibility of partial remote work.Autonomy in decision-making within a small but dynamic team.Collaboration with scientific and tech teams.Salary: ***********€ annual gross (according to experience)Seniority levelMid-Senior levelEmployment typeFull-timeJob functionEngineering and Information TechnologyHealth, Wellness & FitnessNote: This description focuses on qualifications, benefits, and job details.Referrals or unrelated job listings have been removed to improve clarity.#J-*****-Ljbffr


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