Jaffer Silva Email & Phone Number

Led the development of a new REST API used to manage users' financial planning, solving key issues related to cross-platform discrepancies and performance.- Financial Planning API: Developed a REST API to unify the financial planning experience across Android, iOS, and Web platforms. This project significantly reduced customer complaints by eliminating inconsistencies and improved performance through the implementation of caching strategies.- Open Finance Integration: Developed… Show more Led the development of a new REST API used to manage users' financial planning, solving key issues related to cross-platform discrepancies and performance.- Financial Planning API: Developed a REST API to unify the financial planning experience across Android, iOS, and Web platforms. This project significantly reduced customer complaints by eliminating inconsistencies and improved performance through the implementation of caching strategies.- Open Finance Integration: Developed new API features for automatic bank integration using Open Finance Brasil, an initiative led by the Central Bank of Brazil aimed at fostering innovation, increasing competition, and improving the availability of financial products and services for consumers.Key Contributions:- Unified financial planning data across multiple platforms, improving user experience and reducing client complaints;- Optimized API performance with caching strategies, reducing system load and enhancing responsiveness;- Contributed to innovation in the financial ecosystem by integrating Open Finance Brasil standards.Technical Details:- Backend: Used C#, .NET Core, and ASP.NET Core for API development.- Database and ORM: Managed data with Dapper (ORM) and Microsoft SQL Server.- Architecture and Performance: Employed CQRS for better separation of concerns and used Redis for caching to boost performance.- Observability and Monitoring: Monitored performance and system health with Elastic Stack and leveraged Azure Functions for serverless computing and enhanced scalability. Show less

Contributed to the development and maintenance of microservice projects focused on Asset Management and Wealth Management, playing a key role in optimizing performance and ensuring system resilience.- Microservices for Fund Management: Developed and maintained microservices following Clean Architecture and Domain-Driven Design (DDD) principles. These services were designed to be resilient, incorporating Retry Patterns, Rate Limiter, and message queuing with RabbitMQ.-… Show more Contributed to the development and maintenance of microservice projects focused on Asset Management and Wealth Management, playing a key role in optimizing performance and ensuring system resilience.- Microservices for Fund Management: Developed and maintained microservices following Clean Architecture and Domain-Driven Design (DDD) principles. These services were designed to be resilient, incorporating Retry Patterns, Rate Limiter, and message queuing with RabbitMQ.- Performance Optimization: Achieved a 95% reduction in the average processing time of a critical service by implementing advanced caching strategies using Redis.- Code Quality and Monitoring: Ensured high code quality through the use of Sonar for static analysis and monitored system health and behavior using DataDog and Elastic Stack (ELK).Key Contributions:- Significantly improved service performance and scalability through caching strategies;- Built resilient services to ensure seamless performance under high loads;- Monitored and maintained system stability and performance using ElasticSearch, DataDog, and other observability tools.Technical Details:- Backend: Developed microservices using C#, .NET Core, and ASP.NET Core.- Data Management: Used Dapper (ORM) for database access and Microsoft SQL Server as the database.- Messaging and Resilience: Implemented RabbitMQ for message queuing and Redis for caching.- Monitoring: Utilized the Elastic Stack (ELK) and DataDog for logging, monitoring, and performance analysis. Show less

I worked on various initiatives to improve the company's services, including:- Single Page Application (SPA) for Locating Healthcare Providers: Developed a SPA that allows users to find the best accredited doctors near their location, offering a seamless and efficient user experience.- Microservices Architecture: Contributed to the development of APIs based on a microservices architecture, with each service responsible for distinct areas such as customer registration management,… Show more I worked on various initiatives to improve the company's services, including:- Single Page Application (SPA) for Locating Healthcare Providers: Developed a SPA that allows users to find the best accredited doctors near their location, offering a seamless and efficient user experience.- Microservices Architecture: Contributed to the development of APIs based on a microservices architecture, with each service responsible for distinct areas such as customer registration management, subscription management, and integration with payment gateways.- Developer Training: Provided JavaScript training to junior developers and interns, helping them improve their technical skills and contribute effectively to the team.- Automation and Scripting: Developed Python scripts to automate various tasks, streamlining internal processes and improving efficiency.Key Contributions:- Improved user experience with a highly responsive and accessible healthcare provider search tool;- Delivered robust APIs that enhanced system modularity, scalability, and maintainability;- Fostered a collaborative team environment by mentoring junior developers.Technical Details:- Backend: Used Node.js, Express, and NestJS to build microservices, with SQL Server as the database.- Frontend: Built with React.js, leveraging Context API for state management and Styled Components, Bootstrap, and Ant Design for UI/UX design.- Automation: Created Python scripts to support various automation needs. Show less

I worked on the development of systems for two main projects:- Service Order Management System: Led the development of a new version of an existing system, with a focus on improving performance, scalability, security, and usability. Participated in all development phases, from requirement gathering to implementation, ensuring the automation and optimization of the company’s workflow.- Sanitary Surveillance Management System: Developed key features for monitoring and controlling… Show more I worked on the development of systems for two main projects:- Service Order Management System: Led the development of a new version of an existing system, with a focus on improving performance, scalability, security, and usability. Participated in all development phases, from requirement gathering to implementation, ensuring the automation and optimization of the company’s workflow.- Sanitary Surveillance Management System: Developed key features for monitoring and controlling sanitary inspections, ensuring compliance with regulatory standards and improving audit processes.Key Contributions:- Enhanced internal process efficiency by automating manual tasks;- Developed scalable systems, with a focus on usability and performance;- Collaborated with cross-functional teams to ensure timely project delivery.Technical Details:- Developed systems using a monolithic architecture, with a clear separation between frontend and backend layers.- Backend: Built RESTful APIs using Node.js, Express, and NestJS, with SQL Server as the database. Additionally, leveraged Azure Functions for serverless computing to optimize scalability and flexibility.-Frontend: Implemented using React.js, with state management through Redux and Redux-Saga for handling side effects. Utilized Bootstrap and Ant Design for responsive and visually appealing UI components. Show less