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Senior Backend Engineer, Python, FastAPI
Location
India
Posted
6 days ago
Salary
0
Seniority
Senior
Job Description
Senior Backend Engineer, Python, FastAPI
Evnek
• Design and develop scalable backend services using Python and FastAPI. • Build reliable document-processing pipelines capable of handling large PDFs (200+ pages). • Implement AI-driven document classification workflows using taxonomy-based logic and confidence scoring. • Design and maintain document taxonomies, classification schemas, and structured labeling systems. • Support multi-page document assembly using taxonomy-driven rules and page-level signals. • Integrate LLM APIs for document analysis and classification workflows (GPT-4 Vision API preferred). • Build robust asynchronous processing systems using queues, background workers, retry logic, and task orchestration. • Implement audit trails, data lineage tracking, taxonomy versioning, and classification rationale mechanisms. • Develop exception handling and fallback workflows, including 'needs review' paths for uncertain classifications. • Optimize backend performance, infrastructure utilization, and AI inference costs. • Collaborate with cross-functional teams to support compliance-oriented document workflows and business processes. • Support loan-processing workflows by classifying, validating, and assembling borrower documents such as KYC, income proofs, bank statements, and agreements.
Job Requirements
- 8–10 years of strong hands-on backend development experience.
- Expertise in Python and FastAPI framework.
- Strong experience with PDF processing libraries such as PyPDF2, pdf2image, or similar tools.
- Experience integrating LLM APIs for document classification and analysis workflows.
- Hands-on experience with Google Cloud Platform (GCP), including Cloud Storage, Firestore, Cloud Tasks
- Strong understanding of asynchronous job patterns, queues, background workers, and retry mechanisms.
- Experience designing scalable systems with strong focus on error handling, data lineage, audit trails, workflow reliability
- Experience working with OCR and document-processing systems.
- Hands-on experience designing or managing document taxonomies, classification schemas, structured labeling systems, confidence thresholds, rules-based validation systems
- Strong understanding of backend architecture, performance optimization, and system scalability.
- Excellent analytical, debugging, and problem-solving skills.
Benefits
- Compensation will be calculated based on approved working hours
- Remote Timings: 5:30 PM to 2:30 AM IST
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