PbSenior Platform Engineer (Full‑Stack, Node.js Automation) /b /ppbr/ppAt Hays, we are partnering with a leading global pharmaceutical company to support the development of an internal platform focused on automation, efficiency, and process improvement within a highly regulated and innovation‑driven environment. /ppbr/ppWe are looking for a Senior Platform Engineer to contribute to building and evolving an in‑house platform designed to automate workflows, improve operational processes, and integrate seamlessly with enterprise systems used across international teams. /ppbr/ppThis role goes beyond traditional application development. You will work at the intersection of backend engineering, automation, and business process improvement, collaborating closely with technical and non‑technical stakeholders to deliver robust, secure, and scalable solutions. /ppbr/ppbWhat you will do /b /ppbr/pulliDesign, develop, and maintain an internal automation platform focused on operational efficiency and scalability /liliBuild server‑side rendered web applications using Node.js, Express.js, and EJS, following clear MVC principles /liliDevelop and maintain RESTful integrations with enterprise tools, in particular Jira APIs and webhooks /liliDesign efficient MongoDB schemas, optimize queries, and ensure data integrity and performance /liliImplement authentication and authorization mechanisms, including session management, role‑based access, and CSRF protection /liliWork closely with process owners, campaign managers, platform teams, and global stakeholders to identify automation opportunities /liliTranslate business and operational challenges into clean, maintainable, and scalable technical solutions /liliContribute to the evolution of the platform, promoting reuse, standardization, and future AI adoption /liliEnsure high code quality through good architecture, documentation, and engineering best practices /li /ulpbr/ppbWhat we are looking for /b /pullib5+ years of hands‑on professional experience as a software engineer /b, working on full‑stack and/or platform‑focused solutions in production environments. /liliStrong proficiency in bJavaScript (ES6+), /b including asynchronous programming (async/await), modular code design, and advanced array and object patterns. /liliSolid experience building backend applications with bNode.js and Express.js, /b applyingb MVC architecture /b, routing, middleware, and clean controller/service separation. /liliHands‑on experience developing server‑rendered web applications using bEJS templating, /bincluding layouts, partials, and reusable components. /liliStrong frontend fundamentals using bBootstrap, CSS, and vanilla JavaScript /b to build dynamic and user‑friendly interfaces. /liliProven experience working with bMongoDB and Mongoose /b, including schema design, data modeling, indexing, and query optimization. /liliExperience implementing bsecure authentication and authorization mechanisms /b, including session management, CSRF protection, and role‑based access control. /liliStrong experience designing and consuming bRESTful APIs /b and integrating with enterprise systems. /liliHands‑on experience with bJira APIs, webhooks, payload mapping, and resilient error‑handling patterns. /b /liliAbility to collaborate with business stakeholders and translate process and operational needs into scalable technical solutions. /liliStrong focus on code quality, maintainability, documentation, and engineering best practices. /liliAdvanced English Level /li /ulpbr/ppbNice to have /b /pulliExperience building internal platforms, developer tools, or automation frameworks /liliExposure to AI‑assisted workflows, intelligent routing, or decision automation /liliBackground in process improvement, Lean, or Operational Excellence environments /liliKnowledge of Lean Six Sigma concepts /liliExperience documenting platforms or creating reusable technical patterns /li /ulpbr/ppbWhat We Offer /b /pulliPermanent contract through Hays. /liliFlexible remote working model, with one day per month on-site at the office in Sant Cugat del Vallès (Barcelona area). /liliTravel expenses fully covered by the company. /liliCompetitive salary package. /liliWork on a high‑impact internal platform used by global teams /liliJoin a stable, innovation‑driven pharmaceutical environment with a long‑term mindset /liliOpportunity to contribute to automation and future AI initiatives in a regulated, meaningful industry /li /ulpbr/pp If you are interested in working in an international environment and building internal automation platforms that improve omnichannel processes, enable intelligent workflows, and integrate seamlessly with enterprise systems, we would love to hear from you. /p