Senior Backend Developer - Node.jsRemote | EuropeA fast-growing general consumer technology company is looking for a Senior Node.js Backend Developer to join its international engineering team. The organisation builds innovative real-time digital products used daily by millions of users worldwide. Their platform focuses on creativity, self-expression, and enhancing online communication experiences through advanced audio technology.The RoleAs a Senior Backend Developer, you will take ownership of server-side architecture, backend services, and data infrastructure while working closely with DevOps and product teams to scale systems globally. You’ll play a key role in designing performant, secure, and scalable backend solutions supporting real-time user interactions. Their tech stack includes:- Node.js (Express)- MongoDB- Redis- Google Cloud Platform (GCP)- Kubernetes- Docker- GitLab / CI/CDResponsibilities:- Build and maintain scalable backend services and APIs- Collaborate with product and engineering teams to design new features- Optimise services for performance, scalability, and reliability- Implement security and data protection best practices- Design and manage data storage solutions- Develop reusable backend components and libraries- Contribute to testing strategies including unit and E2E testingRequirements:- 5+ years’ experience as a Backend Developer- Strong experience building and consuming REST APIs- Experience with SQL and/or NoSQL databases- Proven ability to write clean, maintainable, and efficient code- Solid understanding of TDD, SOLID principles, and software design practices- Experience with Docker, Kubernetes, Git, and CI/CD workflows- Experience monitoring and optimising system performance- At least B2 level English language skillsIn return, they can offer:- Annual salary of €60-70k- Flexible working hours- Remote working options- Remote working allowance- Learning & language development support