Wilbert O.

Microsoft Contractor via Persistent Systems. Working on Public Sector Project (SAT - Sistema de Administración Tributaria, in Spanish). SAT is the highest tax goverment authority, responsible for collecting taxes in Mexico. 1. Migrate dozens of apps (56) to Azure Cloud using different approaches (Cloud Service Extended Support, App Services, Azure Kubernetes Services, Azure Functions). Most of those apps were running originally as Cloud Service Classic apps on Azure and others running in on-prem servers. 2. Build and maintenance of Continuous Integration (CI) and Continuous Delivery (CD) pipelines in AzureDevOps for migrated apps, using ARM Templates and Azure Bicep. 3. Create infrastructure to enable environments like Development, UAT and Production for each migrated app. 4. Replicate cloud services across different regions in Azure Cloud for high availability and fault tolerance. 5. Automation of cloud configuration tasks creating scripts in power shell and python. 6. Doing coding changes over app codebases to upgrade .NET versions. 7. Doing static code analysis using tools such as Fortify. 8. Document security vulnerabilities from existing code and fixing them if any. 9. Create and document runbooks to migrate apps on Azure. 10. Troubleshooting and fixing issues founded. Technologies: C#, .NET 4.8 / 8.0, xUnit, ASP .NET MVC, ASP .NET Web API REST, Git, Azure (Cloud Services Extended Support, Virtual Machines VM, App Services, Azure Functions using HTTP Triggers and Timer Triggers, API Gateway, API Management, Load Balancing, V-NET, Web Federation, KeyVault, Blobs and Tables as Storage, Azure Service Bus, EventHub), AzureDevOps (CI/CD Pipelines, ARM Templates, Azure Bicep, Powershell scripts, Python Scripts), Fortify Static Code Analyzer (SCA), Azure RedHat Openshift (ARO), Azure Kubernetes Services (AKS), Docker, VS Professional 2019 & 2022, Windows Server, Linux.

1. Modernize apps running on zOS/mainframe on-prem servers. 2. Lead the design of new software architecture based on Event-Driven and Microservices on IBM Cloud and Openshift for a specific module (Seller Comission Calculations) as part of a Financial System Workflow. 3. Design and built Spark Apps using Scala as programming language to run in batch processing thousands of ETL processes at the same time in Openshift cluster. 4. Design and built web apps with Java and Spring Boot running as microservices, serving as REST APIs, Producers and Consumers from topics in Kafka, and web jobs running in background. 5. Integrate new apps with other existing systems within the Financial System Workflow, using sagas, CDC and coreography with Kafka as the way to coordinate distributed transactions and eventual consistency. 6. Instrument and monitoring microservices to collect metrics, logs and doing a distributed tracing using tools like New Relic, Prometheus, logDNA and Openshift. 7. Document technical decisions and software architecture using C4 Model, UML and BPMN notation. 8. Mentoring and giving technical advise to development team members (10). 9. Provide initial project structure to developers. 10. Doing code reviews for implemented user stories within Sprints. 11. Collaborate with DevOps Team to configure CI/CD pipelines with Jenkins and Openshift. 12. Collaborate with Product Owner, Architects and Managers to review technical proposals. 13. Collaborate with Business Analyst to create and review user stories. 14. Collaborate with Tester Team to provide technical details about the software architecture. 15. Collaborate with different teams across regions around the world (India, China, US, Brazil, Europe). Technologies: Apache Spark, Scala, Java, ScalaTest, Junit, Spring Boot, PHP (Laravel), Angular, IBM Cloud (Storage, Kafka, DB2), OpenShift, Docker, Kubernetes, nginx, New Relic, Pager Duty, Jenkins, SonarQube, Cucumber, Github, Git, IntelliJ, VS Code, Linux.