You will get Blazor Developer | .Net Backend Developer | Multi-Tenant SaaS Platform
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Project details
Need a secure multi-tenant SaaS platform?
I can help you design and develop a production-ready SaaS system where tenant isolation, data security, and subscription management work correctly from the foundation up. Multi-tenancy affects every layer, so the right architecture helps avoid tenant data leaks, billing errors, and scaling bottlenecks later.
As a blazor developer, I can build a Blazor Server or WASM frontend with tenant-aware routing, custom branding, and clean tenant workflows. With .net blazor experience, I can connect the interface with onboarding, configuration, billing, and admin logic.
As a .net developer, I can define the right database isolation model: shared database, schema-based separation, or per-tenant database strategy with configurable options per tier. My .net full stack experience covers APIs, RBAC, tenant-scoped permissions, admin hierarchy, Stripe Billing or custom billing, usage metering, quota enforcement, and tenant admin panels.
As a .net backend developer, I also support automated tenant provisioning, secure APIs, scalable architecture, and long-term SaaS maintainability.
Let’s build a SaaS foundation that is secure and ready for growth.
I can help you design and develop a production-ready SaaS system where tenant isolation, data security, and subscription management work correctly from the foundation up. Multi-tenancy affects every layer, so the right architecture helps avoid tenant data leaks, billing errors, and scaling bottlenecks later.
As a blazor developer, I can build a Blazor Server or WASM frontend with tenant-aware routing, custom branding, and clean tenant workflows. With .net blazor experience, I can connect the interface with onboarding, configuration, billing, and admin logic.
As a .net developer, I can define the right database isolation model: shared database, schema-based separation, or per-tenant database strategy with configurable options per tier. My .net full stack experience covers APIs, RBAC, tenant-scoped permissions, admin hierarchy, Stripe Billing or custom billing, usage metering, quota enforcement, and tenant admin panels.
As a .net backend developer, I also support automated tenant provisioning, secure APIs, scalable architecture, and long-term SaaS maintainability.
Let’s build a SaaS foundation that is secure and ready for growth.
Programming Languages
HTML & CSS, ASP.NET, C#Coding Expertise
Cross Browser & Device Compatibility, Localization, SecurityWhat's included $3,000
These options are included with the project scope.
$3,000
- Delivery Time 7 days
- Number of Revisions 3
- Number of Pages 7
- Responsive Design
- Source Code
Optional add-ons
You can add these on the next page.
Additional Page
(+ 1 Day)
+$200Frequently asked questions
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LP
Liudmyla P.
Jun 12, 2026
.NET Full Stack Developer / .NET Developer / Blazor Developer
Excellent .NET Full Stack developer. Serg delivered clean, maintainable C# code, handled API integrations perfectly and showed great skills with Blazor and MySQL. Very responsible and independent
HK
Hanna K.
May 1, 2026
.NET Full Stack Developer (Blazor .NET Core Specialist)
It was a pleasure to work with such a detail-oriented professional. As a highly skilled .NET Full Stack expert, he seamlessly handled everything from .NET Core microservices to sophisticated Blazor Developer interfaces. His expertise as a .NET Developer across the entire Microsoft ecosystem, including legacy systems and MySQL optimization, is truly impressive. Clear communication and exceptional code quality throughout the project. Highly recommended
FK
Friedrich K.
Mar 24, 2026
build youtube downloader tool
GK
Gleb K.
Mar 15, 2026
Senior Developer | .NET | MAUI
Serg worked on my team for over a year as a Senior MAUI/C# Fullstack Developer. He quickly adapted and became productive with minimal guidance. He worked efficiently both independently and with other developers, QA, and managers, and consistently delivered on time. He is skilled in iOS development, Swift, C#, .NET MAUI, the Mescius ComponentOne framework, and REST APIs. His work designing and implementing an in-memory SQLite database architecture was a breakthrough that significantly contributed to the success of the entire project. He followed solid engineering practices such as design-first thinking, TDD, and effective use of AI tools. Serg demonstrated strong work ethic and communication. The project was successfully completed. Thank you for all your contributions! I look forward to working with you again.
MP
Matthew P.
Dec 27, 2024
Convert .NET 8 MVC/EF/DevExpress website to Blazor/Dapper/DevExpress
About Serg
.NET Full Stack | Blazor Developer | .Net Developer | AI-Assisted Dev
100%
Job Success
Kiev, Ukraine - 10:00 pm local time
✔️ You need one engineer who owns backend and UI instead of coordinating two.
✔️ Your legacy .NET app blocks every new feature and nobody wants to touch it.
✔️ Your reporting screens are so slow that users export everything to Excel.
✔️ Performance and tech debt have started reaching your customers.
✔️ You want software that survives the developer who wrote it.
If any of that sounds familiar, we should talk.
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Core expertise
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I work as a .net developer first: C#, ASP.NET Core, APIs, SQL, and service boundaries that still make sense a year later. On top of that I ship as a blazor developer on blazor server and blazor webassembly, and I close the loop as a .net full stack engineer from schema to interface. Most of my work falls into three buckets: new business applications, migrations off aging .NET Framework code, and rescuing systems that grew faster than their architecture. Over 15+ years I have covered architecture, implementation, database design, and delivery, with C# as my primary language and SQL as the backbone of nearly everything I build.
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What I deliver
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As a .net developer I build asp.net, ASP.NET Core, ASP.NET Web API, ASP.NET MVC, .NET Framework, and .net core services with restful api backends that stay clean while the product grows. Data access runs on Entity Framework or tuned SQL against Microsoft SQL Server and MySQL, depending on what the workload deserves. As a blazor developer I build interactive applications with blazor webassembly, blazor server, .net blazor, and blazor c#, using MudBlazor plus blazor syncfusion or blazor telerik when a project needs dense grids and real reporting. Migration work is a specialty: .NET Framework and WCF systems moved to .net core in stages, each step deployable, no feature freeze. For cross-platform work I build with blazor maui as a maui developer and c sharp developer, applying a clean mvvm structure. Where serverless fits, I deploy with azure serverless and azure function.
On the frontend I am comfortable with HTML, HTML5, CSS, CSS 3, JavaScript, and jQuery for classic web work, and with Angular, AngularJS, React, and Node.js when a project already lives there. I also handle Web Design, WordPress integrations, and light Adobe Photoshop work when a project needs an engineer with an eye as well as a compiler.
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Best-fit project types
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• Legacy .NET Framework to .net core migrations without a rewrite
• New business applications built to outlive their first year
• Reporting and back-office platforms with heavy data grids
• Secure API and backend systems led by a .net developer
• Blazor web platforms led by a blazor developer
• .net full stack dashboards and internal tooling
• Xamarin to MAUI moves and cross-platform apps
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Why clients hire me
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You get a senior .net developer who can own the domain model and the APIs, a blazor developer who ships the UI without a second contractor, and .net full stack ownership from the first commit to production. I finish features end to end instead of leaving seams between layers, I stay reachable after delivery, and I look for the cause instead of patching the symptom. When I disagree with a technical decision, I say so before it is expensive.
🛠️ Broader collaboration scope
I also work with Angular, AngularJS, React, Node.js as a react node developer, along with xamarin, wordpress, figma, Adobe Photoshop, Web Design, flutterflow, and obs for streaming setups. I can slot into a java developer heavy team and keep css responsive layouts consistent across devices. As an AI-Assisted Dev I use Cursor, cursor.ai, Claude, GitHub Copilot, and agentic ai in a review-first workflow: the tools draft, I verify, the tests decide. It speeds up refactoring, test coverage, and documentation without shipping code nobody understands.
🧩 Delivery approach
Discovery → technical alignment → architecture definition → iterative implementation → documentation → handover. You always know what is being built, why, and what comes next.
📍 Availability
Based in Ukraine with solid working overlap for EU and US teams. I communicate clearly in English, keep a predictable schedule, and treat your codebase like it has to outlive the contract, because it usually does. If you need a senior .net developer, a strong blazor developer, and real .net full stack ownership in one hire, let's talk.
Steps for completing your project
After purchasing the project, send requirements so Serg can start the project.
Delivery time starts when Serg receives requirements from you.
Serg works on your project following the steps below.
Revisions may occur after the delivery date.
Tenant architecture and isolation strategy
I will review your product requirements and deliver an architecture document covering tenant isolation approach, data partitioning, subscription and billing integration, onboarding flow, RBAC model, and infrastructure scaling plan