• Architected and deployed RESTful APIs using Flask and FastAPI for real-time payment processing systems, ensuring high availability and scalability of banking applications.

• Developed responsive React.js dashboards integrated with Python backend APIs for merchant payment analytics, enabling real-time transaction monitoring and self-service reporting features.

• Engineered automated ETL data pipelines using Python, Apache Airflow, and Celery to process financial records from multiple sources, decreasing manual intervention by 50%.

• Designed and implemented microservices architecture using Docker and Kubernetes for payment validation, fraud detection, and reconciliation services, improving deployment efficiency by 40%.

• Optimized PostgreSQL database performance by redesigning schemas, creating appropriate indexes, and implementing connection pooling for high-volume transaction searches.

• Integrated AWS cloud services including S3 for secure document storage, Lambda for serverless payment notifications, and CloudWatch for application monitoring and logging.

• Conducted comprehensive unit and integration testing using PyTest and Unittest, reducing production errors by 20% through automated testing and quality assurance processes.

• Developed backend components for Freshdesk customer support SaaS platform using Django and PostgreSQL, supporting enterprise healthcare clients including hospitals and medical practices.

• Designed and implemented REST APIs for customer data management, ticket automation, and reporting workflows enabling

seamless integration with third-party CRM and EHR systems.

• Built HIPAA-compliant data handling features ensuring secure PHI management, implementing field-level encryption, audit logging,

and role-based access control.

• Created React.js frontend components for ticket management interface with real-time updates using WebSockets, improving agent productivity by 20%.

• Engineered data validation and processing pipelines using Python, Pandas, and NumPy to handle large volumes of client-generated records, reducing data inconsistencies by 40%.

• Integrated third-party APIs including Twilio for SMS notifications, SendGrid for email, and Stripe for billing using OAuth 2.0 and JWT authentication mechanisms.

• Collaborated with DevOps team to implement CI/CD pipelines using Jenkins and GitLab CI, reducing deployment time from 2 hours to 30 minutes. Participated in Agile ceremonies including sprint planning and retrospectives.