David Lescano

- Developed and deployed backend microservices and REST APIs with .NET Core and Python. - Improved backend performance and reliability through async processing, caching and DB indexing. - Migrated an insurance web application from Blazor to React and built its new .NET REST API. - Built a full-stack analytics dashboard (.NET, React, PostgreSQL) for Rheinmetall. - Deployed and operated production applications on Microsoft Azure. - Implemented GitLab CI/CD pipelines, automating builds and deployments.

- Built internal .NET and React multi-service apps on SQL Server, improving data visibility. - Built a reusable React UI component library, reducing frontend development time. - Optimised frontend performance across React applications. - Introduced SonarQube and SonarLint workflows, reducing critical code-quality issues. - Managed AWS deployments and application versioning, ensuring stable production releases.

- Built an internal quoting web app for insurance agents (car, home and more) from scratch. - Built a public customer portal for instant online insurance quotes. - Developed the .NET backend and APIs, consuming Guidewire APIs for quote details. - Led a team of 4 developers: code reviews, onboarding, training and task estimation. - Implemented secure authentication and authorization with OAuth, JWT and RBAC. - Automated deployments and versioning across environments with GitLab CI/CD.

- Fixed bugs in Salesforce Apex code for a large telecom client. - Tested and documented fixes within IBM’s enterprise delivery processes.