Shailendra Kumar Sunkewar

About Shailendra Kumar Sunkewar

Python Full Stack Developer with 5+ years of experience building scalable…

Experience

1. Software Engineer

   Stripe

   Mar 2024 — Present · San Francisco, CA, US

   Built and shipped full-stack AI-powered web applications using FastAPI and Django for backend services, integrated with React.js and Tailwind CSS for modern, responsive UIs • Reduced API response time by 35% for document summarization endpoint using asynchronous FastAPI and Redis-based caching.• Leveraged FastAPI for scalable microservices and Django for internal tools that required built-in admin interfaces, ORM, and session management. • Integrated OpenAI APIs to deliver intelligent features such as document summarization, semantic search, and conversational agents across Stripe’s internal platforms. • Deployed serverless APIs using AWS Lambda, API Gateway, and Amazon RDS, enabling scalable, low-latency data pipelines for real-time processing. • Engineered background task processing with Celery and Redis, and implemented data access layers using SQLAlchemy and Django’s ORM for high-throughput workloads. • Built reliable API schemas using Python Dataclasses, type hints, and Django REST Framework serializers, ensuring strict contract enforcement and maintainability. • Implemented secure authentication with OAuth2 and JWT, enforcing role-based access controls across microservices and frontend apps.• Automated end-to-end CI/CD using GitHub Actions, Docker, and Amazon EKS (Elastic Kubernetes Service) to deploy features with confidence and zero-downtime rollouts.• Worked cross-functionally with product managers, ML researchers, and SRE teams to bring high-impact features to production with a strong focus on quality and performance. • Ensured PCI DSS and GDPR compliance and secure handling of financial data, payment tokens, and personally identifiable information (PII) across data processing pipelines. • Monitored infrastructure and application performance using Amazon CloudWatch, AWS X-Ray, and Prometheus, enabling observability and rapid incident response.