Senior Backend Engineer (Python / FastAPI)

This is a remote position. Job Title: Senior Backend Engineer (Python / FastAPI) Experience Required: 4+ Years Location: Remote) Notice Period: Immediate Joiners Only Key Responsibilities Design and develop scalable backend services to reliably process large PDFs (200+ pages). Implement AI-based document classification workflows using defined taxonomies and confidence scoring models. Design, version, and maintain document taxonomies that drive classification, grouping, and validation logic. Support multi-page document assembly based on taxonomy-driven rules and page-level metadata. Integrate LLM APIs (preferably GPT-4 Vision) for document analysis and intelligent classification. Build robust asynchronous job workflows using background workers, queues, retry logic, and task orchestration. Implement strong exception handling mechanisms, including fallback paths and needs review workflows. Ensure comprehensive audit trails, data lineage tracking, and classification rationale logging. Opti...