Senior Backend Engineer - Node.JS (Spain, remote, f/m/d)

We are looking for an experienced Senior Backend Engineer to expand and optimize our digital advertisement SaaS suite of applications. Using technologies such as NodeJS with TypeScript, NestJS federated GraphQL, Docker, AWS and Apache Kafka, you'll be designing microservices and other back-end components, and integrating data storage, monitoring and protection solutions. Your primary focus will be the development of all server-side logic, definition and maintenance of central databases and message busses, and ensuring high performance and responsiveness to requests from the front-end. Additionally you'll conduct regular code reviews, provide guidance to other team members, and contribute to workload estimations, project planning and architecture discussions. You will join a cross-functional team under a Product Owner to contribute to our multi-tenant SaaS product and ad-serving network. To ensure success as a Senior Backend Engineer at Factor-Eleven, you should posse...