Donnell Johnson

Developed robust backend systems with Python and Django, deploying scalable applications on AWS services including EC2, Lambda, and RDS. Optimized resource allocation and scaling, leading to a 40% performance improvement. Delivered RESTful APIs and microservices, ensuring reliable performance and security, integrated with third-party services like Stripe, Twilio, and AWS S3.

Transformed legacy SOAP services to REST and GraphQL APIs using Django REST Framework and Apollo Server, reducing response times by 20% and enhancing compatibility with Angular. Integrated multiple payment systems, including Stripe, PayPal, Square, and Apple Pay, to streamline transaction processing, handling over 1.5 million transactions per month with 99.9% uptime. Utilized Node.js for transform

Developed backend systems using Django and Flask, focusing on resilient API design and efficient data storage with MySQL and PostgreSQL. Enhanced API response times by 30% through optimized query structures and index usage. Designed and implemented an ETL pipeline to process 500+ GB of financial transaction data weekly, leveraging Python, Django, Apache Kafka, and Hive for real-time data ingestion

Optimized the performance of 10+ backend services by utilizing Django ORM, enabling efficient processing of more than 500,000 records per day across MySQL and MongoDB. Designed and integrated 20+ RESTful APIs and third-party services, improving data exchange efficiency and system integration by 25%. Used Celery for managing background tasks, reducing task processing time by 30% and improving appli

Grade: 3.88

Completed a Bachelor’s Degree in Computer Science. The curriculum covered fundamental concepts and advanced topics in the field.