Job Summary: We are looking for a Senior Back-End Developer with experience in NodeJS on AWS for an international project focused on cache optimization, integration evolution, and CDN migration. Key Highlights: 1. Solid back-end development experience with NodeJS and AWS. 2. High level of English to interact with clients and technical documentation. 3. Evolution of integration from Salesforce Native Forms to custom API. At THE WHITEAM, we are seeking a **Senior Back\-End Developer** with extensive experience in **NodeJS on AWS**, to join a 100% English international project. This position requires a hybrid working model in Madrid and offers an approximate annual salary of 28K€. **Requirements** * Solid experience in **back-end development with NodeJS**. * Experience working on **AWS**. * High level of English, capable of interacting with clients and technical documentation in English. * Experience in projects involving **CDNs**, especially **Fastly**. * Advanced knowledge of caching strategies, TTL, invalidations, SSO, and performance optimization in high-traffic environments. **Conditions** * 100% English project (high proficiency mandatory). **Responsibilities** * Propose strategies to reduce the need for daily cache purging at the event integration layer, optimizing the use of TTL, selective invalidations, and cache tagging. * Evolve the current **Salesforce Native Forms** integration—currently using iframes—by designing a scalable solution based on a **custom API**, taking into account security, authentication, SSO, performance, and compatibility with **AEM EDS**. * Configure and migrate the **CDN** from Adobe Managed CDN to **Fastly**, including cache policies, TTL, invalidation rules, SSO configuration, and best practices for high-traffic environments. **Company** Joining THEWHITEAM means collaborating with a company composed of professionals with extensive experience in technology consulting. We firmly believe that enterprises and clients set the direction for the industry, but people build that path. We consider it vital that our organization is founded upon our greatest asset and value-added brand: our human team. **Benefits** Additionally, here is a brief summary of company policies to help you get to know us better: * Our collective agreement is for Consulting Firms and Market Research Agencies. * We offer 23 vacation days per year. * We provide 14 monthly payments: 12 regular monthly payments plus two extra payments (in June and December). * As part of flexible compensation, we offer childcare vouchers and medical \+ dental insurance.