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Hi, I'm Shainaz Sultana, a seasoned Full Stack Developer with 4+ years of hands-on experience building enterprise-grade applications using C#, .NET Core, ASP.NET, Web API, EF, and SQL Server. I focus on scalable architectures, performance, maintainability, and secure design, delivering RESTful APIs and backend services while also crafting responsive UIs. I'm comfortable integrating AI-driven features, third-party services, and authentication/authorization mechanisms, and I enjoy collaborating in Agile teams to drive automation and data-driven workflows. I’ve helped reduce errors, boost client satisfaction, and improve collaboration through clear communication and diligent problem-solving.…Hi, I'm Shainaz Sultana, a seasoned Full Stack Developer with 4+ years of hands-on experience building enterprise-grade applications using C#, .NET Core, ASP.NET, Web API, EF, and SQL Server. I focus on scalable architectures, performance, maintainability, and secure design, delivering RESTful APIs and backend services while also crafting responsive UIs. I'm comfortable integrating AI-driven features, third-party services, and authentication/authorization mechanisms, and I enjoy collaborating in Agile teams to drive automation and data-driven workflows. I’ve helped reduce errors, boost client satisfaction, and improve collaboration through clear communication and diligent problem-solving.

Shainaz Sultana

Full Stack Developer, Back-End Developer, Front-End Developer, +4

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Hi, I'm Shainaz Sultana, a seasoned Full Stack Developer with 4+ years of hands-on experience building enterprise-grade applications using C#, .NET Core, ASP.NET, Web API, EF, and SQL Server. I focus on scalable architectures, performance, maintainability, and secure design, delivering RESTful APIs and backend services while also crafting responsive UIs. I'm comfortable integrating AI-driven features, third-party services, and authentication/authorization mechanisms, and I enjoy collaborating in Agile teams to drive automation and data-driven workflows. I’ve helped reduce errors, boost client satisfaction, and improve collaboration through clear communication and diligent problem-solving.…Hi, I'm Shainaz Sultana, a seasoned Full Stack Developer with 4+ years of hands-on experience building enterprise-grade applications using C#, .NET Core, ASP.NET, Web API, EF, and SQL Server. I focus on scalable architectures, performance, maintainability, and secure design, delivering RESTful APIs and backend services while also crafting responsive UIs. I'm comfortable integrating AI-driven features, third-party services, and authentication/authorization mechanisms, and I enjoy collaborating in Agile teams to drive automation and data-driven workflows. I’ve helped reduce errors, boost client satisfaction, and improve collaboration through clear communication and diligent problem-solving.

Available to hire

Hi, I’m Shainaz Sultana, a seasoned Full Stack Developer with 4+ years of hands-on experience building enterprise-grade applications using C#, .NET Core, ASP.NET, Web API, EF, and SQL Server. I focus on scalable architectures, performance, maintainability, and secure design, delivering RESTful APIs and backend services while also crafting responsive UIs.

I’m comfortable integrating AI-driven features, third-party services, and authentication/authorization mechanisms, and I enjoy collaborating in Agile teams to drive automation and data-driven workflows. I’ve helped reduce errors, boost client satisfaction, and improve collaboration through clear communication and diligent problem-solving.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Work Experience

Sr. Full Stack Developer at Exito Inc

October 1, 2025 - Present

Develop and maintain scalable backend services using C#, .NET Core, ASP.NET Web API, and Entity Framework Core for enterprise-grade applications. Design, build, and enhance RESTful APIs to support secure communication between internal platforms, client systems, and third-party services. Build reusable service components and business logic modules, improving code maintainability and reducing duplication across multiple applications. Develop user-facing components using HTML5, CSS3, Bootstrap, Razor views to improve usability and responsiveness. Optimize SQL Server queries, stored procedures, and data access layers to support high-volume transactional processing. Implement authentication and authorization mechanisms using secure access controls. Engineered a robust solution for handling dynamic web content and HTTP requests, resulting in a 30% increase in data retrieval efficiency. Boosted real-time data processing and alert functionality, increasing accuracy by 40% in real-time contexts

Software Engineer at Task Impetus Inc

November 1, 2024 - October 1, 2025

Developed web-based business applications using ASP.NET Core, C#, MVC, and Web API to support internal operations, workflow automation, and business process improvements. Built backend modules for data validations, business rules, reporting logic, and user management with strong focus on performance and reliability. Integrated SQL Server databases with application services using Entity Framework and optimized database queries for improved response times. Designed and consumed REST APIs for communication between distributed systems and external service providers. Enhanced usability and interface responsiveness using HTML5, CSS3, Bootstrap, Razor views, delivering a consistent user experience. Implemented exception handling, logging, debugging, and secure coding practices to reduce production issues and improve support efficiency. Orchestrated seamless integration of web scraping and listing data for second-hand marketplaces, enhancing new product listings visibility by 35%.

Software Engineer at NOWSA Global Pvt Ltd

November 1, 2020 - August 1, 2022

Developed and supported enterprise applications using C#, ASP.NET MVC, ADO.NET, and SQL Server based on business requirements. Created dynamic web pages, forms, reports, and dashboards using HTML, CSS, Bootstrap, and Razor views for internal and customer-facing systems. Designed database objects including stored procedures, views, functions, and tables to support backend processing and reporting. Implemented CRUD operations, data validations, and business rules across multiple modules. Assisted in integrating third-party APIs and internal services to improve system connectivity, data exchange, and automation. Supported intelligent workflow enhancements by assisting in AI-related integrations, including automation-focused service calls and smart search/document processing features. Architected a technical support framework with clear documentation to communicate technical concepts clearly, ensuring a 20% reduction in issue resolution time and enhancing team collaboration.

Junior .Net Developer at RSOFT Systems & Services Pvt Ltd

July 1, 2018 - October 1, 2020

Assisted in the development of web applications using C#, ASP.NET, MVC, and SQL Server for business processes and data management. Developed backend logic for forms, reports, validations, and data-driven modules under guidance. Created and maintained database objects, including stored procedures, views, and functions. Fixed bugs, updated existing code, and supported system enhancements based on user feedback. Built UI components using HTML, CSS, Bootstrap, and Razor views for responsive and user-friendly pages. Participated in unit testing, debugging, troubleshooting, and code correction activities to improve application quality. Achieved high uptime and elevated user satisfaction through reliable, maintainable systems.