Jun 2024 – Present · 1 yr 9 mos · Noida, Uttar Pradesh, India · On-site

• Key Responsibilities & Achievements
• Backend Development: Designed, developed, and maintained scalable web applications, RESTful APIs, and full-featured e-commerce platforms using Python, Django, Django REST Framework (DRF), and FastAPI.
• Clean Architecture: Architected robust backend systems with a focus on modularity, microservices, and cloud-native deployments.
• Authentication & Security: Implemented secure authentication and RBAC using JWT tokens, ensuring data privacy, compliance, and user segmentation.
• E-commerce & Workflow Automation: Built and optimized product management workflows, feedback collection systems, and payment integrations (Razorpay, Stripe, PayPal).
• Asynchronous Processing: Designed and deployed Celery + Redis pipelines for background jobs (emails, reporting, order processing, notifications).
• Real-Time Systems: Enabled real-time updates and live notifications using Django Channels + WebSockets, improving user engagement and responsiveness.
• Cloud & DevOps: Deployed and managed infrastructure on AWS (EC2, S3, RDS, Lambda) following scalability, security, and cost-optimization best practices.
• Containerization & CI/CD: Containerized applications with Docker & Docker Compose; implemented CI/CD pipelines with GitHub Actions for automated testing and zero-downtime deployments.
• Database Optimization: Optimized database performance via indexing, query tuning, caching strategies, ensuring high availability and low latency.
• Collaboration & Tools: Used Git for version control, Postman for API testing, and agile collaboration workflows with distributed teams.
• Generative AI & RAG Applications:
• Built RAG pipelines with LangChain, LLMs, and Vector Databases for knowledge retrieval and context-aware responses.
• Developed AI-powered agents to automate workflows and enhance user interactions with customized domain-specific reasoning.
• Integrated LLM-based APIs into backend systems for intelligent chatbots, recommendation systems, and content generation.

Dec 2023 – Jun 2024 · 6 mos · Noida, Uttar Pradesh, India · On-site

• Key Responsibilities & Achievements:
• Designed and developed SmartSchool, a full-featured e-commerce and learning platform using Python, Django, and Django REST Framework (DRF).
• Built robust RESTful APIs for product management, order workflows, user management, and real-time delivery tracking.
• Implemented pagination, filtering, and query optimization to ensure high performance under scale.
• Enhanced Django Admin to streamline internal operations for product, user, and inventory management.
• Secured the platform with Django Authentication, DRF permissions, and role-based access control (RBAC).
• Designed a responsive frontend using Django templates, Bootstrap, and jQuery with full payment gateway integration (Razorpay, Stripe, PayPal).
• Deployed on AWS cloud infrastructure:
• EC2 for server hosting
• S3 for media/static files
• RDS (MySQL) for database
• CloudFront for global content delivery
• Containerized the application using Docker, with Docker Compose for orchestration and multi-service development.
• Handled background processing (e.g., order confirmations, inventory updates, reporting) using Celery with Redis as the message broker.
• Integrated real-time features (order status, admin alerts) using Django Channels and WebSockets.
• Monitored system health and logs using AWS CloudWatch, implementing alerting for failures or slowdowns.
• Applied advanced database indexing, backup strategies, and zero-downtime migrations using Django’s migration tools.
• Focused on clean architecture, scalability, and cloud-native deployment best practices to ensure high availability.