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C# Development Services

Gain access to top-tier C# development expertise to build secure, scalable software solutions. As a Microsoft Solutions Partner, we have confirmed our profound practical experience in developing and deploying applications and services using C#.

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Top .NET Developers 2025

 

Clutch Top 1000 Companies

Digital & App Innovation

 

Digital & App Innovation

Web Exellence Awards

 

Web Exellence Awards

ISO 9001

ISO 9001:2015

ISO 27001

ISO 27001:2022

Stevie Silver Award 2024

Silver Stevie Award 2024

Clutch Top .NET Development Companies 2024

Top 1000 Companies 2023

Clutch Top .NET Development Companies 2024

Top .NET Developer 2024

Best PropTech company of the Year

Global Business Tech Awards

Netty Awards winner

Apps & Software

Digital & App Innovation

ISTQB Gold partner

Gold Partner

When to use C#

C# is a strongly typed programming language at the core of the .NET ecosystem. It addresses complex business needs across multiple platforms, integrates seamlessly with Microsoft technologies, and сan easily leverage existing native code. ​

C# automatically manages memory, which helps improve developer productivity and speed up time to market​.

C# is also one of the main reasons our customers choose .NET as the primary platform for their existing or brand-new projects.

C# services we provide

 icon
Web development icon

Web development

Desktop development icon

Desktop development

Cross-platform mobile development icon

Cross-platform mobile development

SaaS solution development icon

SaaS solution development

Dedicated C# developers icon

Dedicated C# developers

Advantages of C# application development

Rich frameworks: .NET Core, ASP.NET Core icon

Rich frameworks: .NET Core, ASP.NET Core

Full-stack development capabilities icon

Full-stack development capabilities

High performance icon

High performance

Type-Safe  icon

Type-Safe

OOP and functional programming icon

OOP and functional programming

Powerful language features​ icon

Powerful language features​

Automatic garbage collection​ icon

Automatic garbage collection​

Large developer community​ icon

Large developer community​

Rich frameworks: .NET Core, ASP.NET Core icon

Rich frameworks: .NET Core, ASP.NET Core

Full-stack development capabilities icon

Full-stack development capabilities

High performance icon

High performance

Type-Safe  icon

Type-Safe

OOP and functional programming icon

OOP and functional programming

Powerful language features​ icon

Powerful language features​

Automatic garbage collection​ icon

Automatic garbage collection​

Large developer community​ icon

Large developer community​

C# Stack We Cover

Language features

Language features

  • Versatility​
  • Type safety​
  • Garbage collection​
  • Compiled​
  • Simple asynchronous programming​
  • Multithreading and Parallel execution​
  • OOP nature​
  • Functional capabilities​
  • Ahead-of-time compilation​
  • Interoperability
Frameworks & libraries​

Frameworks & Libraries​

  • .NET Core up to .NET 9.0​
  • .NET Framework​
  • ASP.NET Core​
  • Entity Framework Core​
  • Blazor Server​
  • Blazor WebAssembly​
  • .NET MAUI​
  • Xamarin.Forms​
  • SignalR​
  • ML.NET
Application development

Application Development

  • Web: ASP.NET Core (MVC, Razor Pages, Minimal API), Blazor​
  • Desktop: WPF, WinForms​
  • Mobile: .NET MAUI, Xamarin Forms​
  • Cloud: Azure, AWS, GCP​
  • Microservices & API Development​
  • Multi-tier apps​

C# solutions
we developed

all cases
C#
.NET
ASP.NET Core
Angular
MySQL
Dapper
AWS
Global Payment Processing Provider
C#
.NET
ASP.NET Core
Angular
MySQL
Dapper
AWS

Global Payment Processing Provider

Leobit became a technology partner for one of the fastest-growing California-based payment innovation leaders. Leobit’s business analysts and our technology team are working on a complex payment processing solution with a multi-module ecosystem. Leobit expertise is used to digitize processes previously done by hand, optimize and simplify workflows, and develop functionality for the automated calculation risk level of merchants in multiple vertical-specific industries. Our team successfully solves all business-related challenges to streamline the customer’s operations, increase profitability and surpass competitors on the global market.

I'm immensely proud to be a part of this journey and look forward to continued success as we impact the FinTech sector together.

case study
Azure Cognitive Search
Azure AI Video Indexer
.NET
Angular
ASP.NET
C#
Legal Case Management Platform
Azure Cognitive Search
Azure AI Video Indexer
.NET
Angular
ASP.NET
C#

Legal Case Management Platform

The platform is a leading civil and criminal case management software tailored for defenders and prosecutors within the US judicial system. Its primary goal is to streamline workflows, drive cost efficiencies, and enhance the effectiveness and agility of legal teams. With its cloud-based storage and robust search functionality, legal professionals can efficiently enter, archive, search, retrieve, and generate reports on case information.

case study
C#
.NET 8.0
ASP.NET WebAPI
Azure SQL
GCP BigQuery
AppScript
Modernised Data Architecture Based on BigQuery for a Real Estate Platform
C#
.NET 8.0
ASP.NET WebAPI
Azure SQL
GCP BigQuery
AppScript

Modernised Data Architecture Based on BigQuery for a Real Estate Platform

An efficient data management architecture capable of collecting and processing large volumes of data from multiple sources. The solution deals with a complex data architecture involving numerous tables. The data architecture has not been changed for several years, so the Leobit team had to deal with a complex system, completely restructure the data integration flows, and provide an innovative architecture devoid of performance bottlenecks, limited capacities, and poor organization, peculiar to its predecessor.

Our team showcased great speed and efficiency in improving the customer’s data management architecture. In three weeks, we provided the client with a modernized architecture allowing them to make data collection more performant and scalable, as well as preparing it for gradual updates that wouldn't trigger the entire process.

case study

C# language
alternatives

C#

C#

Services:

Paradigm

Object-oriented, multi-paradigm​

Performance

High (compiled, JIT in .NET)

Concurrency Model

Thread-based, async/await​

Platform

Cross-platform (.NET Core)

Use Cases

Enterprise, web, game development (Unity)​

Community & Libraries

Strong, Microsoft-backed, NuGet

Learning Curve

Moderate

Standard Library

Rich

Java​

Java​

Services:

Paradigm

Object-oriented, multi-paradigm​

Performance

High (compiled, JIT in JVM)

Concurrency Model

Thread-based, reactive streams​

Platform

Cross-platform (JVM)​

Use Cases

Enterprise, mobile (Android), web, back end​

Community & Libraries

Strong, large ecosystem (Maven, Gradle)

Learning Curve

Moderate​

Standard Library

Rich

JavaScript​

JavaScript​

Services:

Paradigm

Multi-paradigm (functional, OO, event-driven)​

Performance

Moderate (interpreted, JIT in V8)

Concurrency Model

Event-driven, single-threaded

Platform

Cross-platform (Web, Node.js)

Use Cases

Web, front end, back end (Node.js), serverless

Community & Libraries

Very large (NPM ecosystem)​

Learning Curve

Easy

Standard Library

Moderate

Ruby

Ruby

Services:

Paradigm

Object-oriented, multi-paradigm

Performance

Low to moderate (interpreted)​

Concurrency Model

Thread-based, GIL limited concurrency

Platform

Cross-platform​

Use Cases

Web (Rails), scripting, prototyping​

Community & Libraries

Moderate, Gems ecosystem​

Learning Curve

Easy

Standard Library

Moderate​

Why Leobit for C#​ Development

Team photo Leobit
  • Microsoft Solution Provider (Gold Certified Partner since 2018)​
  • Pure .NET company: 100+ .NET projects, 70+ ASP.NET, 45+ Azure projects, 20+ Blazor projects​
  • 78 Microsoft certified engineers​
  • Recognized among Clutch Top 1000 companies ​
  • Expertise in .NET Consulting: Assessment, Review, Migration, Strategy services

FAQ

Definitely. This outsourcing gives you access to a vast pool of talent at a low cost. Ukrainian developers have a high-quality technical education and huge motivation. Therefore, they guarantee a high-quality result.

Ukrainian C# developers have international certifications and a solid technical base. Many giants, such as Amazon, Google, etc., open their R&D centers here. Ukraine is considered one of the best locations for outsourcing development services, especially everything related to C#.

You can contact local recruitment companies. However, we offer developers of various levels with extensive expertise and big experience with a wide range of services. So feel free to contact us.