FULLSTACK ENGINEER - REACT & NODE/PYTHON (PWA SPECIALTY)

<p><strong>Contract Type:</strong> Temporary / Contract (4 months)</p><p>&#xa0;</p><p>We are looking for a <strong>Fullstack Developer</strong> 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. <strong>Please note this is a 4-month temporary contract.</strong></p><p>The selected candidate will work on a solution with a strong focus on performance, user experience, offline functionality, and efficient data synchronization.</p><p>&#xa0;</p><p><strong>Responsibilities</strong></p><ul><li><p>Analyze, design, and develop the project end-to-end.</p></li><li><p>Develop a mobile-first PWA using React and TypeScript.</p></li><li><p>Design and develop APIs connected to PostgreSQL.</p></li><li><p>Implement processes for efficient image management and storage.</p></li><li><p>Implement client-server synchronization processes and offline functionality.</p></li><li><p>Analyze and optimize application performance and architecture.</p></li><li><p>Define mobile-oriented UI/UX solutions.</p></li><li><p>Integrate authentication using OAuth 2.0 with Microsoft.</p></li><li><p>Handle the deployment of the solution.</p></li></ul><p>&#xa0;</p> <ul><li><p><strong>3+ years of experience</strong> in mobile-first PWA development with <strong>React and TypeScript</strong>.</p></li><li><p>Experience developing APIs with <strong>Python/FastAPI and/or Node.js</strong>.</p></li><li><p>Experience working with <strong>PostgreSQL</strong>.</p></li><li><p>Experience with <strong>offline-first applications</strong> or limited connectivity environments.</p></li><li><p>Experience with caching strategies and offline functionality in PWAs.</p></li><li><p>Hands-on experience with <strong>Service Workers and IndexedDB</strong>.</p></li><li><p>Experience in image management and optimization for web/mobile applications.</p></li><li><p>Experience in client-server synchronization and offline data management.</p></li><li><p>Experience with OAuth 2.0 and/or Microsoft Entra ID (Azure AD).</p></li><li><p>Experience with deployments on <strong>AWS and/or Azure</strong>.</p></li><li><p>Experience in web/mobile performance optimization.</p></li><li><p>Strong understanding of mobile-oriented UI/UX.</p></li><li><p><strong>Spanish at fluent or native level is Mandatory</strong></p></li><li><p>Ability to work autonomously and contribute to architectural decisions.</p></li></ul><p>&#xa0;</p><p><strong>Nice to Have / Optional</strong></p><ul><li><p>Experience with offline-first architectures and data synchronization conflict resolution.</p></li><li><p>Experience with Microsoft Graph API, particularly integration with Microsoft Teams and email services for sending notifications.</p></li></ul> <ul><li>B2B or freelancer contract.</li><li><p>Remote position working in the Spain time zone.</p></li><li><p>Be part of a multicultural team working on international projects.</p></li><li><p>Temporary / Contract (4 months)</p></li></ul><p><strong>If you are passionate about data, development &amp; tech, we want to meet you!</strong></p><ul><li><p>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).</p></li></ul>