Our partner is looking for a Senior Full-Stack Product Engineer | Node. js, AI-Native (Boosters R&D;) based in Spain. Join an early-stage product team building an innovative solution in the personal digital security space, where your engineering decisions will directly shape the product's future. As a Senior Full-Stack Product Engineer, you will take ownership of backend development, infrastructure, and high-impact product features from concept to launch. You will work in a lean, autonomous engineering environment with minimal bureaucracy, collaborating closely with the Tech Lead to define architecture and technical direction. You'll leverage Node. js, TypeScript, AWS, and AI-powered development tools to create reliable, scalable solutions. Accountabilities - Lead the development of product features throughout the entire lifecycle, from ideation and design to implementation, release, and performance analysis. - Build and maintain robust backend services using Node. js and TypeScript, contributing to frontend development with React or Next. js when needed.



- Collaborate with the Tech Lead on software architecture, system design, and technical decisions that support product scalability and long-term growth. - Design, implement, and evolve cloud infrastructure and engineering solutions, ensuring reliability, performance, security, and maintainability. - Help develop an AI-native engineering environment that enables the team to use AI agents and agentic coding tools to build, test, and deploy solutions efficiently and securely. - Establish and improve engineering practices, including automated testing, CI/CD pipelines, and development workflows. - Take ownership of technical initiatives, identify opportunities for improvement, and continuously raise the quality and efficiency of product development. Requirements: - At least 4 years of experience in backend engineering or full-stack development with a strong backend focus, ideally within a product-led company. - Strong pr

📌 Senior Full-Stack Product Engineer | Node.js, AI-Native (España)
🏢 Jobgether
📍 España