Job Summary We are seeking a highly skilled Senior Backend Developer with strong experience in the IoT domain to design, build, and scale backend systems for connected devices and real-time data processing. The ideal candidate has hands-on expertise in Node.js (TypeScript) and/or Python, deep knowledge of MQTT, microservices architecture, and cloud-native deployments on AWS. Key Responsibilities: • Design, develop, and maintain scalable backend services using Node.js (TypeScript) and/or Python • Build and optimize IoT platforms handling device communication, telemetry, and real-time data ingestion • Implement and manage MQTT-based messaging systems for reliable device communication • Design and develop micro services architectures with RESTful APIs • Implement authentication and authorization using Keycloak • Work with MySQL and MongoDB for high-performance data storage and retrieval • Containerize applications using Docker and manage deployments using container orchestration tools • Write and maintain Shell scripts for automation, monitoring, and deployment tasks • Deploy, monitor, and optimize applications on AWS (EC2, S3, RDS, IAM, etc.) • Ensure system reliability, performance, security, and scalability • Collaborate with cross-functional teams including frontend, DevOps, and product teams • Participate in code reviews, architecture discussions, and technical decision-making Requirements Required Skills & Qualifications • 6+ years of experience in backend development • Strong expertise in Node.js (TypeScript) and/or Python • Proven experience working in the IoT domain • Hands-on experience with MQTT protocol • Strong database skills in MySQL and MongoDB • Experience implementing Keycloak for authentication and authorization • Solid understanding of microservices architecture and RESTful APIs • Experience with Docker and container orchestration (Kubernetes/ECS preferred) • Strong Shell scripting skills (Bash or similar) • Good working knowledge of AWS services • Experience with Linux-based systems • Strong problem-solving and debugging skills Nice to Have • Experience with high-throughput or real-time systems • Knowledge of event-driven architectures • Familiarity with CI/CD pipelines • Exposure to Kubernetes and Infrastructure as Code (Terraform, CloudFormation) • Experience with monitoring tools (Prometheus, Grafana, CloudWatch)