What kind of development work do you specialize in?

I specialize in building web applications, RESTful APIs, backend services, and communication platforms. I provide end-to-end solutions—from architecture design to deployment—primarily using C#, ASP.NET, and JavaScript.

What technologies do you use most often?

My core stack includes C#, ASP.NET Core, JavaScript (ES6+), Entity Framework, SQL Server, HTML/CSS, and Twilio APIs. I also work with third-party services and tools like Azure, Git, and REST APIs

Do you work with existing codebases or only from scratch?

Both. I can jump into an existing codebase to fix bugs, optimize performance, or add new features. I'm equally comfortable starting a project from scratch using modern architecture and clean code practices.

Can you handle both frontend and backend tasks?

Yes, I’m a full stack developer. I can design and develop the backend in .NET and handle frontend development with HTML, CSS, JavaScript, and modern frameworks like Blazor or jQuery.

What .NET technologies do you work with (e.g., ASP.NET Core, Blazor)?

I work extensively with ASP.NET Core for web APIs and MVC applications, and I also use Blazor for client-side development. I can also support legacy .NET Framework applications.

Can you build RESTful APIs in .NET?

Absolutely. I design secure, scalable REST APIs using ASP.NET Core, Entity Framework, and follow best practices for versioning, authentication, and error handling.

Do you provide help with database integration (SQL Server, EF Core, etc.)?

Yes. I can design and manage database schemas, write stored procedures, and implement data access using Entity Framework Core or raw ADO.NET when necessary.

Can you assist with legacy .NET application upgrades or migrations?

Yes. I help clients modernize their applications by upgrading from older .NET Framework versions to .NET Core/.NET 6+ with minimal disruption to business operations.

What Twilio services can you integrate (SMS, Voice, WhatsApp, Video)?

I can integrate Twilio's full range of services, including SMS, Voice Calls, WhatsApp Messaging, Video Calls, and Twilio Studio for visual flow builders.

Can you build custom communication workflows using Twilio Studio or Functions?

Yes. I’ve built multiple automated workflows using Twilio Studio and have experience writing custom logic with Twilio Functions for dynamic and scalable communications.

Have you worked with Twilio for two-factor authentication (2FA)?

Yes. I can integrate Twilio Verify or build custom 2FA systems using Twilio SMS/Voice to ensure secure authentication flows for your users.

Can you integrate Twilio with CRM systems or custom applications?

Definitely. I’ve integrated Twilio with CRMs, custom admin dashboards, and internal tools to streamline customer communication and automate processes

Can you create custom web applications tailored to my business needs?

Yes. I work closely with clients to understand their requirements and deliver custom solutions that are scalable, secure, and aligned with business goals.

Do you build secure and scalable APIs?

Yes. I implement secure authentication (JWT, OAuth), role-based access control, and follow best practices for API performance and reliability.

Do you provide documentation and testing for APIs you build?

Absolutely. I use Swagger (OpenAPI) for documentation and can write unit and integration tests to ensure quality and reliability.

What is your typical workflow for a new project?

I start with a discovery call or message to understand your goals. Then, I create a project plan, set milestones, begin development, and keep you updated throughout the process.

How do you communicate with clients during development?

I’m available through Upwork messages, Zoom, Google Meet, or any preferred platform. I provide regular progress updates and am always responsive to feedback.

Do you provide ongoing maintenance and support?

Yes. I offer post-delivery support, bug fixes, and long-term maintenance contracts to ensure your application continues to perform well.

What time zone do you work in, and are you available for meetings?

I work in Pakistan Standard Time (PKT / UTC+5) , but I’m flexible with meeting times to accommodate international clients across various time zones.

.NET Developer Full Stack | Twilio API Developer

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Hey, I’m Muhammad Abubakar

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.NET Developer Full Stack | Twilio API Developer_

<p>Leveraging modern technologies such as .NET Core, C#, Entity Framework, and Twilio (SMS, Voice, WhatsApp), I build robust full-stack applications and real-time communication systems.</p>