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I am a full-stack developer with 3 years of experience building web and mobile applications, specializing in backend development with Node.js, NestJS, and TypeScript, and frontend development with React, Next.js, and Flutter. End-to-end experience in system architecture, development, databases, external integrations and production deployment. Recently trained in Project Management (Google), with knowledge in Agile methodologies, planning, and team coordination.…I am a full-stack developer with 3 years of experience building web and mobile applications, specializing in backend development with Node.js, NestJS, and TypeScript, and frontend development with React, Next.js, and Flutter. End-to-end experience in system architecture, development, databases, external integrations and production deployment. Recently trained in Project Management (Google), with knowledge in Agile methodologies, planning, and team coordination.

Delfina Spais

Full Stack Developer, Back-End Developer, Front-End Developer, +3

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I am a full-stack developer with 3 years of experience building web and mobile applications, specializing in backend development with Node.js, NestJS, and TypeScript, and frontend development with React, Next.js, and Flutter. End-to-end experience in system architecture, development, databases, external integrations and production deployment. Recently trained in Project Management (Google), with knowledge in Agile methodologies, planning, and team coordination.…I am a full-stack developer with 3 years of experience building web and mobile applications, specializing in backend development with Node.js, NestJS, and TypeScript, and frontend development with React, Next.js, and Flutter. End-to-end experience in system architecture, development, databases, external integrations and production deployment. Recently trained in Project Management (Google), with knowledge in Agile methodologies, planning, and team coordination.

Available to hire

I am a full-stack developer with 3 years of experience building web and mobile applications, specializing in backend development with Node.js, NestJS, and TypeScript, and frontend development with React, Next.js, and Flutter.

End-to-end experience in system architecture, development, databases, external integrations and production deployment. Recently trained in Project Management (Google), with knowledge in Agile methodologies, planning, and team coordination.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Spanish; Castilian

Fluent

English

Advanced

French

Beginner

Work Experience

Backend Developer at ClinEra

January 1, 2025 - Present

Backend development for ClinEra SaaS platform: built backend using NestJS and TypeScript; designed PostgreSQL schema with Prisma ORM; implemented multi-tenant architecture; authentication with JWT and 5 user roles; integrated external APIs (Firebase push notifications, Google Calendar API, WhatsApp Business API); created a subscription system with paid plans and configurable limits; produced PDF/Excel reports and advanced operational modules; deployed on Railway; contributed to frontend modules using Next.js and React.

Front End Developer at Orien CRM

January 1, 2025 - Present

Frontend development for healthcare CRM and authorization audits; built UI with SvelteKit, Svelte 5, and TypeScript; implemented RBAC with 7 roles; developed modules: Contact Center, Audit, and Affiliate Search with a responsive UI.

Front End Developer at Lambda Solution

January 1, 2023 - Present

Frontend development of web and mobile apps for multiple clients; developed interfaces using Flutter; built web interfaces with React and reusable components; consumed and configured APIs from Flutter and React.

Full-Stack Developer at AMC Amoblamiento s

January 1, 2023 - Present

E-commerce project developed with React, Node.js, Express, and PostgreSQL; implemented authentication with Auth0; integrated MercadoPago as the payment provider; deployed the frontend using Vercel.

Frontend Developer at Independent Project

January 1, 2024 - Present

Frontend development for 'Projects Coming Out? App' using Flutter and Dart.

Backend Developer at OAC G (Clinera)

January 1, 2025 - Present

Built backend architecture using NestJS, TypeScript and Node.js. Designed and implemented PostgreSQL database using Prisma ORM. Developed multi-tenant architecture for multiple clinics, ensuring data isolation and scalability. Implemented authentication and authorization with JWT and 5 user roles. Integrated external APIs: Firebase (push notifications), Google Calendar API, WhatsApp Business API. Created a subscription system with paid plans and configurable limits. Implemented PDF/Excel reports and advanced operational models. Deployed the application on Railway. Contributed to frontend modules using Next.js and React.

Frontend Developer at Orien CRM

January 1, 2025 - Present

Frontend web application for healthcare affiliate management and medical authorizations audits, used by internal teams. Built frontend with SvelteKit, Svelte, and TypeScript. Implemented role-based access control (RBAC) with 7 user roles. Developed modules: Contact Center, Audit, and Affiliate Search with responsive UI. Used Tailwind CSS, DaisyUI, Vitest, and Playwright for testing.

Frontend Developer at Lambda Solution

January 1, 2023 - Present

Frontend development of web and mobile apps for multiple clients. Developed interfaces using Flutter (Dart). Built web interfaces using React and reusable components. Consumed and configured APIs from Flutter and React.

Full-Stack Developer at AMC Amoblamentos

January 1, 2023 - Present

E-commerce project developed with React, Node.js, Express, and PostgreSQL. Implemented authentication with Auth0. Integrated MercadoPago as the payment provider. Deployed the frontend using Vercel.

Frontend Developer at Projects Coming Out? App

January 1, 2024 - Present

Frontend development of a Flutter and Dart-based app.

Backend Developer at Clinera / OAC G

January 1, 2025 - Present

Participated from the beginning, developing the entire backend architecture. Built the backend using NestJS, TypeScript, and Node.js. Designed and implemented the PostgreSQL database using Prisma ORM. Developed a multi-tenant architecture for multiple clinics, ensuring data isolation and scalability. Implemented authentication and authorization with JWT and 5 user roles. Integrated external APIs: Firebase push notifications, Google Calendar API, and WhatsApp Business API. Created a subscription system with paid plans and configurable limits. Implemented PDF/Excel reports and advanced operational models. Deployed the application on Railway. Contributed to frontend modules using Next.js and React.