Cheikh Ahmadou Bamba Deme

🚀 Contributing as a key developer for Tap2Use at Worldline Global - an advanced contactless transport solution serving public transit systems worldwide with microservices architecture. 🔧 Key Responsibilities & Impact: 🏗️ Development & Implementation: Designed and delivered 15+ critical features for payment processing microservices, improving system reliability by 25% Developed scalable solutions transforming complex transport payment requirements into maintainable code Built robust REST APIs handling thousands of daily transactions across multiple transit systems ⚡ System Optimization & Migration: Led Apache Camel to Spring JMS migration for message processing, improving throughput by 30% and reducing maintenance overhead Implemented data migration scripts ensuring seamless model evolution during major system updates Resolved complex distributed system issues, maintaining 99%+ system uptime in production 🔄 DevOps & Automation: Enhanced CI/CD processes using GitLab CI/CD and OpenShift, reducing deployment time from hours to minutes Automated comprehensive non-regression testing pipeline, cutting manual testing effort by 60% Streamlined delivery processes improving team productivity and release confidence 👥 Client Support & Problem Solving: Investigated and resolved complex client-reported issues by reproducing bugs in controlled environments Provided production fixes for critical problems, ensuring continuous system operation for client deployments Delivered technical solutions directly to customer teams, improving overall solution stability 🛠️ Technical Stack: Java • Spring Boot • Spring Cloud • PostgreSQL • MongoDB • ActiveMQ • REST APIs • GitLab CI/CD • OpenShift • Docker • Microservices Architecture

💼 Contributed to the Nano-Credit platform for DER F/J - a microfinance solution enabling small business loan processing and management. 🔧 Key Contributions: Resolved critical production issues, debugging complex bugs and delivering fixes that ensured 99%+ system uptime Developed and integrated new features for the loan processing workflow, improving user experience and operational efficiency Optimized application performance by adjusting database queries and design parameters, reducing response times by 35% Worked in agile environment collaborating with cross-functional teams to deliver features on schedule 🛠️ Technical Stack: Java • Spring Boot • React • PostgreSQL • REST APIs • JUnit