Senior Backend Engineer (Node.js)

The company is a leading direct-to-consumer platform for app publishers, processing more than $1B annually. As a Senior Backend Engineer you will build and evolve core backend systems — high-scale, cloud-native services that power critical business flows — with end-to-end ownership from design and architecture to production, monitoring, and continuous improvement. Responsibilities: Design and maintain scalable, high-availability backend services in cloud-native environments. Own features end-to-end: design, implementation, deployment, monitoring, and optimization. Contribute to system architecture, API design, data modeling, and event-driven flows. Write maintainable code and participate in design/code reviews. Optimize performance, reliability, and resource usage. Collaborate with Product on translating business requirements into technical solutions. Mentor other engineers and improve engineering standards. Requirements (must-have): 5+ years building scalable backend systems and end-to-end web applications. Strong Node.js/TypeScript backend development. Microservice architecture design and implementation; event-driven flows. Cloud-based environments (AWS preferred). NoSQL databases (MongoDB) and caching solutions (Redis). Docker containerization experience. Production-grade system architecture and software design knowledge. Ownership mindset, strong problem-solving; startup experience valued. Nice to have: Kubernetes experience.