Company Experience 17

📌 Name of Company: Entelgy Colombia

At Entelgy Colombia, I gained crucial experience supporting backend systems designed to handle high volumes of concurrent users and heavy transactional loads for major financial clients such as Corpbanca, HELMS, and ITAHU 🏦. In my role as an Oracle Service Bus Developer on the Proyecto Portal Único, I architected and implemented robust, scalable middleware solutions using Oracle Service Bus 12c and WebLogic Server, specifically optimized to maintain performance and reliability under intense user demand and heavy traffic conditions ⚙️. I was responsible for configuring JMS queues, connection factories, and data sources to ensure the system could efficiently process tens of thousands of requests simultaneously, providing stable and low-latency access to critical banking operations like credit card transactions and contract management 📈. My design emphasized dynamic routing, comprehensive logging, exception handling, and message queue management, all vital for scaling applications and troubleshooting issues in real time, which directly supports the needs of large-scale, high-traffic applications such as ecommerce sites or public-facing services with heavy user concurrency 🔄. This backend focus, combined with advanced OSB development including proxy services, pipelines, and complex XQuery transformations, demonstrates my ability to support and scale applications facing heavy loads and millions of backend interactions, aligning perfectly with your need for an engineer experienced in scaling and maintaining high-volume user applications—even if not in gaming, the principles and challenges are directly transferable** 🚀.

💼 Role: Oracle Service Bus Developer

📜 Contract: Full Permanent Position

📅 Duration: August 2016 – October 2016 (4 Months)

🏢 Client Name: Corpbanca / HELMS / ITAHU

📞 References: Karol Camargo (+57 1 300 6575057) 🔗 LinkedIn

📝 Role Description:

Technical Consultant | Oracle Service Bus 12c Integrator & Developer

🚀 Project Name: Proyecto Portal Único

💻 Technologies & Tools:

🔹 Oracle Fusion Middleware 12c
🔹 Oracle Service Bus 12c
🔹 BPEL
🔹 XQuery

⚙️ Key Responsibilities & Achievements:

✅ WebLogic Server Setup: Installed and configured WebLogic Server for development and QA environments, including:
🔹 Data Sources
🔹 Enterprise Information System (EIS)
🔹 JMS Settings, Modules, and Queues
🔹 Connection Factories

✅ OSB Development: Designed and implemented Oracle Service Bus 12c integrations to expose stored procedures from Sybase and Oracle. Services included:
🔹 Checking & validation of access
🔹 Credit card operations (addition & consulting)
🔹 Trust and consultation contract management

✅ OSB Architecture & Best Practices: Proposed a robust Oracle Service Bus architecture with:
🔹 Logging & exception handling at OSB and backend levels
🔹 Dynamic routing & cross-referencing
🔹 Standardized variable mapping for business and proxy layers
🔹 JMS queue management

✅ Advanced OSB Development: Strengthened OSB development with:
🔹 Proxy & Business Services
🔹 Pipelines & Routing
🔹 Service Callouts
🔹 XQuery transformations (Replace & Advanced XQuery capabilities)

📌 Analytical Table for Entelgy Colombia

🚀 Project: Proyecto Portal Único