Fullstack Engineer - React & Node/Python (PWA Specialty)
Contract Type: Temporary / Contract (4 months)
We are looking for a Fullstack Developer with at least 3 years of experience in mobile application development using Progressive Web Apps (PWA) to participate in the end-to-end delivery of a React-based mobile project. Please note this is a 4-month temporary contract.
The selected candidate will work on a solution with a strong focus on performance, user experience, offline functionality, and efficient data synchronization.
Responsibilities
Analyze, design, and develop the project end-to-end.
Develop a mobile-first PWA using React and TypeScript.
Design and develop APIs connected to PostgreSQL.
Implement processes for efficient image management and storage.
Implement client-server synchronization processes and offline functionality.
Analyze and optimize application performance and architecture.
Define mobile-oriented UI/UX solutions.
Integrate authentication using OAuth 2.0 with Microsoft.
Handle the deployment of the solution.
Qualifications
3+ years of experience in mobile-first PWA development with React and TypeScript .
Experience developing APIs with Python/FastAPI and/or Node.js .
Experience working with PostgreSQL .
Experience with offline-first applications or limited connectivity environments.
Experience with caching strategies and offline functionality in PWAs.
Hands-on experience with Service Workers and IndexedDB .
Experience in image management and optimization for web/mobile applications.
Experience in client-server synchronization and offline data management.
Experience with OAuth 2.0 and/or Microsoft Entra ID (Azure AD).
Experience with deployments on AWS and/or Azure .
Experience in web/mobile performance optimization.
Strong understanding of mobile-oriented UI/UX.
Ability to work autonomously and contribute to architectural decisions.
Nice to Have / Optional
Experience with offline-first architectures and data synchronization conflict resolution.
Experience with Microsoft Graph API, particularly integration with Microsoft Teams and email services for sending notifications.
Additional Information
- B2B or freelancer contract.
Remote position working in the Spain time zone.
Be part of a multicultural team working on international projects.
Temporary / Contract (4 months)
If you are passionate about data, development & tech, we want to meet you!
Talan Spain’s commitment to non-discrimination based on gender, race, ideology, or any other reason, in accordance with the company’s "Equality Plan" and the current regulations on gender equality between women and men (Royal Decree-Law 6/2019).
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