Develop and maintain scalable backend services and APIs for identity document processing and verification. Collaborate with Product, Data Science/Machine Learning, and Infrastructure teams. Champion best practices in coding, code review, testing, performance optimization, security, and CI/CD. Own backend architectural decisions, focusing on API design, microservice architecture, and secure data handling. Analyze production metrics to optimize system performance, scalability, and reliability. Integrate machine learning and computer vision components into the backend pipeline. Collaborate with frontend and mobile engineers to define API contracts and ensure seamless user experience.