Talan is an international consulting group specializing in innovation and business transformation through technology. With over 7,200 consultants in 21 countries and a turnover of €850 M, we are committed to delivering impactful, future-ready solutions.Talan at a GlanceHeadquartered in Paris and operating globally, Talan combines technology, innovation, and empowerment to deliver measurable results for our clients. Over the past 22 years, we’ve built a strong presence in the IT and consulting landscape, and we’re on track to reach €1 billion in revenue this year.Our Core Areas of ExpertiseData & Technologies:We design and implement large-scale, end-to-end architecture and data solutions, including data integration, data science, visualization, Big Data, AI, and Generative AI.Cloud & Application Services:We integrate leading platforms such as SAP, Salesforce, Oracle, Microsoft, AWS, and IBM Maximo, helping clients transition to the cloud and improve operational efficiency.Management & Innovation Consulting:We lead business and digital transformation initiatives through project and change management best practices (PM, PMO, Agile, Scrum, Product Ownership), and support domains such as Supply Chain, Cybersecurity, and ESG/Low-Carbon strategies.We work with major integral clients across diverse sectors, including Transport & Logistics, Financial Services, Energy & Utilities, Retail, and Media & Telecommunications.Job DescriptionContract Type:Temporary / Contract (4 months)We are looking for aFullstack Developerwith 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.ResponsibilitiesAnalyze, design,



and develop the project end-to-end.Develop a mobile-first PWA using React and Type Script.Design and develop APIs connected to Postgre SQL.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.Qualifications3+ years of experiencein mobile-first PWA development withReact and Type Script.Experience developing APIs withPython/Fast API and/or Node.Js.Experience working withPostgre SQL.Experience withoffline-first applicationsor limited connectivity environments.Experience with caching strategies and offline functionality in PWAs.Hands‑on experience withService Workers and Indexed DB.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 onAWS 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 / OptionalExperience 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 InformationB2 B 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).

📌 Fullstack Engineer - React & Node/Python (Pwa Specialty) (Madrid)
🏢 Talan
📍 Madrid