Samuel Lewis Email & Phone Number

Teaneck, New Jersey, United States

• Developed microservices and APIs using design patterns, Docker images, and automation to streamline multiple business processes, maintaining a 99% uptime.• Led IT software projects, supervising business analysis and quality assurance teams to establish a high-performing software development environment.• Designed and developed key modules such as Smart Loan, Fund Management, Policy Number Generation, and Leads Generation for insurance and pension fund management.• Re-engineered legacy ASP.NET MVC and Web Forms applications into microservices using .NET Core, resulting in a 25% performance improvement in scalability and speed.• Developed APIs using gRPC, achieving over a 35% improvement in system performance.• Created RESTful APIs and backend services using ASP.NET Web API and Entity Framework, supporting a mobile application with over 1 million active users.• Managed critical software upgrades for banking systems, leading to a 40% increase in performance.• Enhanced the code review process, reducing production bugs by 60%.• Diagnosed and resolved complex technical issues, optimized database queries and schema design, reducing query execution times by 20% and improving overall application performance.• Implemented best practices for code quality, including unit testing, code reviews, and static code analysis, which led to a 40% reduction in bug density.• Secured web applications and APIs by implementing OAuth 2.0, JWT, and other authentication and authorization mechanisms.• Collaborated with mobile development teams to optimize backend services, ensuring smooth and responsive mobile user experiences.• Automated repetitive tasks, saving over 500 man-hours annually.• Developed advanced reporting systems that increased operational efficiency by 30%, supporting better decision-making processes.• Created Cashierfit, a management decision-making system, accelerating decision-making and performance measurement by 15%.

Santa Clara, California, United States

• Developed Web APIs on the .NET Core platform, integrated them into web-based applications, and consumed third-party APIs for check scanning and depositing processes. Created unit tests using NUnit to ensure code quality.• Developed and maintained mobile applications using React Native, focusing on user experience and integration with backend services.• Developed dynamic mobile applications and integrated them with backend services, ensuring a cohesive user experience across platforms.• Integrated backend services with mobile applications to provide seamless user experiences, including features such as push notifications and real-time updates.• Optimized APIs for mobile performance to ensure fast response times and efficient data handling, supporting high-traffic mobile applications.• Cross-Platform Development:• Implemented client-side and server-side validation, session management, and optimized data access management using ASP.NET MVC 5.2.• Worked closely with frontend teams using React JS, understanding the importance of mobile-responsive design and contributing to mobile-friendly API designs.• Wrote and optimized stored procedures in SQL for efficient data retrieval and management.• Applied CI/CD pipelines using GitLab CI for deploying .NET back-end and Angular front-end applications to AWS Lambda via the Serverless framework and AWS S3.• Enhanced ASP.NET Web Forms by writing and modifying back-end code to improve functionality and performance.• Developed WinForms, WPF, and Silverlight applications using C# and Visual Studio, ensuring robust and scalable desktop applications.• Developed rich desktop applications using WPF, leveraging its data-binding capabilities to create interactive and dynamic user interfaces.• Implemented the Presentation Layer in ASP.NET MVC using Views, Partial Views, Web Controls, layout pages, HTML, and CSS for a seamless user experience.

New York, New York, United States

• Developed backend services and APIs to enable real-time communication with hardware-embedded systems, facilitating sensor data collection and actuator control.• Architected and developed APIs and applications using .NET Core, ensuring robust and scalable solutions.• Created custom controls and user controls in WPF to enhance reusability and maintainability across multiple projects.• Designed and implemented service-oriented architectures (SOA) using WCF to facilitate communication between distributed systems.• Developed and consumed SOAP-based and RESTful services using WCF, ensuring secure and reliable communication for enterprise applications.• Utilized WCF Error Handling and Fault Contracts to provide detailed error information and improve fault tolerance in distributed applications.• Implemented Windows-specific features such as custom UI controls and local data storage solutions, enhancing application functionality and user experience.• Integrated backend services with mobile applications to provide seamless user experiences, including features such as push notifications and real-time updates.• Optimized APIs for mobile performance to ensure fast response times and efficient data handling, supporting high-traffic mobile applications.• Cross-Platform Development:• Collaborated with the mobile development team, providing support and guidance during the integration process.• Assisted in feasibility analysis, cost estimation, and business process optimization related to hardware and IoT systems, aiding decision-making for management.• Created a web application using Blazor technology with the .NET Core framework, delivering modern and responsive web solutions.• Contributed to an Agile team by releasing regular, iterative updates to the website, following TDD principles (MSTest) and participating in code reviews.