Senior Software Engineer Our client. a fast-growing technology company is seeking a Senior Software Engineer to help architect and build a next-generation real-time platform from the ground up. Working closely with a small senior engineering team, you will design and deliver scalable backend systems, cloud infrastructure and distributed architectures capable of supporting high-concurrency real-time experiences. This is a hands-on role with significant influence over technical direction, infrastructure design and platform foundations. Key Responsibilities Design and build scalable backend services and cloud infrastructure Architect event-driven and distributed systems on AWS Develop APIs, microservices and internal tooling Improve reliability, observability and developer workflows Conduct load testing and performance optimisation Contribute to frontend applications where required About You You are a senior engineer with deep backend and cloud experience gained from operating production systems at scale. Key Skills and Experience Strong Node.js and TypeScript expertise Deep AWS knowledge across networking, IAM, compute and distributed systems Experience with event-driven architectures and high-concurrency systems Infrastructure as Code experience (Pulumi, Terraform or similar) Strong understanding of databases, caching and performance optimisation Experience with observability, monitoring and alerting Comfortable working across the stack when required Strong Linux, Docker an