Company Experience 20 - Manuela Cortés Granados's CV

ScotiaGBS Colombia Global Business Service (ScotiaBank) 🏦

At ScotiaGBS (Scotiabank), I worked as a Platform Engineer Specialist for two years, where I gained extensive experience supporting and scaling mission-critical backend systems designed to handle heavy loads from tens of thousands of users worldwide in a demanding financial and compliance environment 🏦. I developed and optimized Java-based APIs and services built on IBM OpenPages, ensuring they could sustain high-throughput, concurrent RESTful traffic with strict performance, reliability, and security requirements 🔧. My work involved resolving production issues under intense system usage, guaranteeing system stability and responsiveness at scale even during peak demand hours ⚡. I engineered robust integrations like a JIRA REST API tracker and a Git log analysis system to monitor real-time activity and performance metrics, applying best practices such as caching, pagination, and rate-limiting to optimize API calls and reduce latency 🚀. I automated complex workflows using background job schedulers like Hangfire and Quartz.NET, and deployed scalable cloud-native solutions on Azure Functions and AWS Lambda, ensuring elastic scaling and high availability in a distributed architecture ☁️. Throughout this experience, I honed my skills in designing and maintaining backend applications that can support tens to hundreds of thousands of concurrent users, tackling the challenges of heavy traffic, load balancing, and system resilience 💪. This role directly aligns with the needs of environments requiring backend engineering expertise for large-scale applications under high volume and demanding concurrency, making me well-equipped to handle backend systems for public-facing apps, e-commerce platforms, or even gaming services where performance and scalability are paramount 🎯.

📌 Position: Programmer Analyst Advisory / Platform Engineer Specialist
📅 Duration: October 2019 – October 2021 (2 years)
👤 Reference Contact: Pablo Andrés Esteban (Direct Manager)

• 🔗 LinkedIn: Pablo Andrés Esteban Vargas
• 📞 Phone: +57 314 215 1175

Key Achievements & Contributions:

☕ Java Development & IBM OpenPages

• Expertise in IBM OpenPages Java API (v8.0) for custom solution development.
• Deep understanding of OpenPages Java architecture (action classes, Java triggers).

🛠️ Jira & Service Desk Solutions

• Resolved 31+ Jira development tickets involving OpenPages XML configurations & Java code.
• Completed 1106+ commits in Git across develop branches.
• Identified & managed pending production issues for approval.
• Created Loss Impacts as per business requirements.

📖 Documentation & Knowledge Sharing

• Authored 200+ pages of Confluence documentation, covering:
  • User manuals for multiple modules.
  • Java API best practices & implementation.
  • IBM Security Rules & internal system details.

🚀 Java Prototype Developments

📌 GIT LOG System

• Developed a MySQL-based logging system to store and analyze Git logs.
• Generated useful statistics such as:
  • Commits consolidated by author & branch.
  • Code contributions by developer & date.
  • Top developers by commit count & lines of code added/changed.

📌 JIRA REST API Tracker

• Developed a JIRA API integration to track project progress in a database.
• Features included:
  • Tracking all sprints related to a project.
  • Listing user stories per sprint.
  • Summarizing activity (comments, changes, updates) per sprint.

📋 Service Desk Contributions

• Resolved 41+ tickets in the internal Service Desk system.

�C# Development for JIRA API Integration

✔ Developed and automated JIRA API integration using C# .NET Core, enabling seamless project and issue management.
✔ Designed and implemented RESTful API clients with HttpClient and Refit to interact with JIRA Cloud and Server APIs.
✔ Automated ticket creation, updates, and workflow transitions, improving task tracking and sprint management.
✔ Developed custom reporting tools for extracting JIRA data, including:

• 📌 Issue Tracking Reports – Status, priority, and assignment details.
• 📊 Sprint & Agile Reports – Sprint progress, velocity, and burndown charts.
• ⏳ Worklog & Time Tracking Reports – Logged hours per user and project.
• 📈 Custom Dashboard Integrations – Real-time JIRA insights via Power BI / Angular / React dashboards.
  ✔ Implemented OAuth 2.0 and API Key authentication for secure API communication.
  ✔ Optimized API calls with pagination, rate-limiting, and caching to enhance performance.
  ✔ Developed background services using Hangfire / Quartz.NET to automate JIRA data synchronization.
  ✔ Integrated JIRA webhooks to trigger real-time actions on status updates and workflow changes.
  ✔ Built exportable reports (📄 Excel, 📂 PDF, 📊 CSV) using EPPlus, iTextSharp, and FastReport.NET for project analytics.
  ✔ Deployed the solution on Azure Functions / AWS Lambda, ensuring scalability and high availability.

📌 Analytical Table for ScotiaGBS Colombia (ScotiaBank) 🏦

🚀 Key Achievements & Contributions

🏆 Achievements

🛠️ Technologies & Tools Used