Hire expert C# developers

Add a senior C# engineer to your team for ASP.NET Core services, EF Core data layers, background workers and .NET Framework modernization, working inside your repositories, reviews and release process.

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Projects delivered: 50+
Average rating: 4.8/5
Response time: 24h

Hire a C# developer

Tell us what you're building. We'll send a plan and a quote within 24 hours — no spam.

A cleaner way to hire C# developers

Krapton lets you hire C# developers who join your team to build and maintain production .NET code: ASP.NET Core APIs, minimal APIs, gRPC services, Entity Framework Core data layers and hosted background workers. C# suits teams that want...

Async code without deadlocks
Senior C# developers know where async goes wrong: sync-over-async calls like .Result or .Wait(), async void outside event handlers, and missing CancellationToken plumbing. They fix thread-pool starvation at the source instead of raising MinThreads, and they use ConfigureAwait correctly in library code.
EF Core that scales
Entity Framework Core is productive until N+1 queries, lazy-loading surprises and change tracking on large result sets pile up. Our developers read the generated SQL, use AsNoTracking and projections for reads, split queries where cartesian explosion appears, and write migrations that are safe to run against live tables.
Framework to modern .NET
Moving from .NET Framework is rarely a single port. Developers convert projects to SDK-style csproj files, multi-target shared libraries, and find replacements for System.Web, WCF services (often CoreWCF or gRPC) and AppDomains, keeping the old application deployable while each piece moves.
Production diagnostics, not guesswork
When a C# service leaks memory or spikes CPU, our engineers collect evidence with dotnet-counters, dotnet-trace and dotnet-dump, read allocations in PerfView or a profiler, and benchmark the fix with BenchmarkDotNet before it ships. Findings go into the pull request, not a chat thread.

Why C#?

What makes C# the right choice for modern engineering teams.

Versatile application development
C# is used for diverse application types, including desktop software, web applications, and game development.
Object-oriented programming
C# follows a powerful object-oriented programming (OOP) paradigm, enhancing code organization, reusability, and modularity.
Integration with .NET Framework
C# seamlessly integrates with the .NET framework, providing a robust foundation for application development.
LINQ (Language-integrated query)
C# supports LINQ, enabling developers to query data directly within the language, enhancing data manipulation capabilities.
Asynchronous programming
C# features native support for asynchronous programming, improving application responsiveness and performance.
Strong typing
C# is statically typed, ensuring type safety and catching errors at compile time for more reliable code.

What you can build with C#

ASP.NET Core APIs
REST and minimal API backends with OpenAPI documents, versioning, JWT or OpenID Connect authentication, rate limiting middleware and ProblemDetails error responses, deployed as Linux containers or to Azure App Service.
Background worker services
Hosted services and worker processes that consume Azure Service Bus, RabbitMQ or Kafka messages, with MassTransit or plain clients, idempotent handlers, retry policies through Polly and dead-letter handling that operators can inspect.
Blazor internal tools
Admin panels and line-of-business screens in Blazor, sharing C# validation and DTOs with the API, using server or WebAssembly render modes depending on latency, offline needs and how much code should reach the browser.
Desktop applications
WPF and WinForms applications kept alive on modern .NET, or new cross-platform clients built with .NET MAUI or Avalonia, with MVVM structure, local SQLite storage and installers signed for enterprise deployment.
Real-time SignalR features
Live dashboards, notifications and collaborative screens using SignalR hubs, with a Redis backplane or Azure SignalR Service when the app runs on several instances, and authorization checked per hub method.
Unity gameplay code
Gameplay systems, tools and editor extensions written in C# for Unity, with attention to garbage-collection spikes, object pooling and the Burst and Jobs systems for code that runs every frame.

Modernizing .NET Framework applications without a freeze

Many teams that search for C# developers are really looking for someone to move a .NET Framework 4.x application onto current .NET without stopping feature work. Krapton’s approach starts with an inventory: which projects are class libraries that can multi-target, which depend on System.Web, WCF server hosting, Windows Workflow Foundation or .NET Remoting, and which NuGet packages have no modern build. Libraries usually move first, converted to SDK-style projects and multi-targeted so the old and new hosts share one codebase. The web layer then moves behind YARP using the System.Web adapters, so authentication and session can be shared while routes migrate one at a time. Each step ships to production on its own, which keeps rollback simple and means the business never waits for a big-bang cutover that may slip.

The harder decisions are the ones without a drop-in replacement. WCF services can move to CoreWCF when clients cannot change, or to gRPC or REST when they can. Windows-only dependencies such as COM interop, the registry or System.Drawing on servers may mean the service stays on Windows hosting for a while, which is a valid interim state. Our developers also check behavior changes that bite after an upgrade: different default JSON serialization in System.Text.Json compared with Newtonsoft.Json, culture and globalization differences on Linux containers, and stricter nullable warnings once they are switched on. Every migrated project gets characterization tests before code moves, so regressions show up as failing tests in CI rather than as support tickets after release. You end up on a supported LTS runtime with a codebase your own engineers can keep upgrading.

C# in action

using System;
using System.Collections.Generic;

namespace LibraryDemo {
    class Program {
        static void Main(string[] args) {
            var library = new Library();

            library.AddBook(new Book("1984", "George Orwell"));
            library.AddBook(new Book("To Kill a Mockingbird", "Harper Lee"));

            Console.WriteLine("Books in library:");
            foreach (var book in library.Books) {
                Console.WriteLine($"{book.Title} by {book.Author}");
            }
        }
    }

    public class Library {
        public List<Book> Books { get; private set; }

        public Library() {
            Books = new List<Book>();
        }

        public void AddBook(Book book) {
            Books.Add(book);
        }
    }

    public class Book {
        public string Title { get; private set; }
        public string Author { get; private set; }

        public Book(string title, string author) {
            Title = title;
            Author = author;
        }
    }
}

What our C# developers know

Every Krapton developer is vetted with real production experience in C# across multiple industry domains.

C# programming proficiencyExpertise in writing, debugging, and maintaining C# code for diverse applications.
Object-oriented designMastery of object-oriented principles for creating modular, scalable, and maintainable code.
.NET Framework integrationSkills in leveraging the .NET framework for efficient application development.
Asynchronous programmingProficient in implementing asynchronous patterns for responsive and efficient applications.
LINQ usageExperience in using LINQ for language-integrated querying and data manipulation.
Strong typing practicesAbility to utilize C#'s strong typing for robust and error-resistant code.

What our C# developers go deep on

Modern C# language features
Records, pattern matching, nullable reference types, primary constructors and collection expressions used where they clarify intent, with nullable warnings treated as errors in new projects so null bugs surface at compile time.
Dependency injection and configuration
Correct service lifetimes in the built-in container, avoiding captive dependencies such as a scoped DbContext inside a singleton, plus the options pattern with validation on start so bad configuration fails before traffic arrives.
Testing with xUnit and Testcontainers
Unit tests with xUnit or NUnit, WebApplicationFactory for in-memory API tests, and Testcontainers for real SQL Server or PostgreSQL instances instead of the EF Core in-memory provider, which hides translation bugs.
Security in ASP.NET Core
Authentication with OpenID Connect and Microsoft Entra ID, policy-based authorization, antiforgery for cookie flows, Data Protection keys persisted correctly across instances, and dependency scanning with dotnet list package --vulnerable in CI.
Observability with OpenTelemetry
Traces, metrics and logs exported through OpenTelemetry to Azure Monitor, Grafana or Datadog, with ILogger structured logging, correlation across HTTP and message hops, and health checks wired to the orchestrator.
Data access beyond EF Core
Dapper for hot read paths, raw SQL with parameters, SqlBulkCopy for large imports, and compiled queries where profiling justifies them, chosen per query rather than as a blanket rule across the codebase.

Common C# projects we deliver

Porting a WebForms app to ASP.NET Core
WebForms has no direct equivalent in modern .NET, so the work is a rewrite of the UI layer behind a strangler proxy such as YARP, moving pages one route at a time while shared business logic is multi-targeted and keeps running.
Fixing slow ASP.NET Core endpoints under load
A developer profiles the hot path, finds sync-over-async calls, chatty EF Core queries or missing indexes, then adds output caching, response compression or HybridCache where data allows, and proves the change with load tests in k6.
Building a multi-tenant SaaS backend in C#
Tenant resolution in middleware, EF Core global query filters for row-level isolation, per-tenant configuration through the options pattern, and integration tests that assert one tenant can never read another tenant’s rows.
Containerizing .NET services for Azure or AWS
Developers produce small Linux images with the SDK container publishing support or multi-stage Dockerfiles, add health checks, structured logging with Serilog, and deploy to Azure Container Apps, AKS or Amazon ECS through a CI pipeline.

C# solutions by industry

Finance
Ledger services, reconciliation jobs and reporting APIs where decimal arithmetic, audit trails, idempotent payment handling and strict code review matter more than framework novelty.
Healthcare
Patient portals and integration services that exchange HL7 FHIR resources using the Firely .NET SDK, with role-based access, encryption at rest and access logging for compliance reviews.
Manufacturing
Shop-floor and ERP integrations, often Windows-based, where C# services talk to OPC UA servers, SQL Server databases and legacy WCF endpoints that cannot be switched off overnight.
Gaming
Unity client code, editor tooling and ASP.NET Core game backends for matchmaking, inventories and leaderboards, sharing C# models between client and server where it helps.

C# vs Java

C# and Java solve the same class of backend problems, and both run well in containers. The honest difference is ecosystem fit: C# pairs naturally with Azure, SQL Server, Windows desktop and Unity, while Java has deeper roots in large enterprise middleware, Android history and the Kafka and Spark world. Language features in C# tend to arrive faster; Java offers more vendor choice in runtimes.

C# vs Java
Dimension	C#	Java
Main framework	ASP.NET Core, minimal APIs, EF Core	Spring Boot, Spring Data, Hibernate
Release cadence	Yearly .NET release, LTS every two years	Six-monthly JDK release, LTS every two years
Async model	async/await with Task, mature and pervasive	Virtual threads since JDK 21, plus reactive options
Cloud fit	Strongest on Azure, runs well on AWS and GCP	Neutral across clouds, strong vendor runtime choice
Desktop and games	WPF, WinForms, MAUI, Avalonia and Unity	JavaFX and Swing, little game engine use
Native compilation	Native AOT for small, fast-starting services	GraalVM native image for fast startup

How to hire C# developers in 5 steps

A transparent, low-risk process — from first call to onboarded engineer in about two business days.

01Day 0
Share your brief
Tell us the stack, scope, seniority and the timezone overlap you need on a free 30-minute discovery call. No obligation, no sales pitch.
02Within 24 hours
Review matched profiles
We shortlist 2–3 pre-vetted C# engineers from our in-house bench, with CVs and directly relevant work — usually within one business day.
03Days 1–2
Interview & test
Interview each developer yourself, run a paid trial task, or do a live pairing session. You decide who joins — we never push a profile.
04Within 2 days
Onboard securely
Sign a free NDA, then plug the developer into your Jira, repository and Slack. Engagements are month-to-month with no lock-in.
05Ongoing
Scale or replace
Scale the team up or down month by month as the roadmap changes. If the fit is not right, you get a free replacement within the first 30 days.

Other backend technologies we work with at Krapton.

Three ways to hire C# developers

Pick the engagement that matches how you actually work. No multi-year contracts — scale up or down month by month.

Dedicated developer
Most popular
Full-time C# engineer who reports only to you. Best for ongoing products, long-term roadmaps and teams that need a core hire without the HR overhead.
- 40 hours / week
- Your Jira, your repo
- Month-to-month
Hourly / time & materials
Pay only for billable hours. Ideal for research spikes, code audits, or variable-load C# work where scope is still being discovered.
- Weekly timesheets
- Slack-first comms
- No minimum commit
Fixed-price milestones
Scoped delivery with clear milestones and acceptance criteria. Best for well-defined C# builds like an MVP, a migration or a specific module.
- Scope locked upfront
- Milestone acceptance
- Predictable budget

Compare ways to hire C# developers

Pick the model that matches how you work. Switch between them as your C# project evolves — no multi-year contracts.

Compare ways to hire C# developers
Engagement	Dedicated developer (popular)	Hourly / time & materials	Fixed-price milestones
Best for	Ongoing products & long-term roadmaps	Exploratory or variable-load work	Well-scoped MVPs, modules & migrations
Billing	Monthly, full-time (~160 hrs)	Per billable hour	Per accepted milestone
Commitment	Month-to-month, no lock-in	No minimum commitment	Scope locked up front
Flexibility	Scale up or down monthly	Highest — pay for what you use	Lowest — defined deliverables
You manage	Day-to-day in your tools	Weekly priorities	Acceptance criteria only
Reporting	Daily standups	Weekly timesheets	Milestone demos

Hire C# developers from anywhere

Our New Delhi team partners with founders and engineering leaders across eight key markets, with enough daily timezone overlap to feel in-house.

Hire C# developers in India
Full working-day overlap
Krapton is an on-shore C# studio in New Delhi. Hire C# developers in India and get senior, full-time engineers at roughly 50–70% of US/UK rates — with English-fluent communication and IST working hours.
Hire C# developers in USA
4–6 hours of daily overlap — your morning, our evening
Hire dedicated C# developers for your USA team without the local price tag. US companies work with our vetted, full-time C# engineers at 50–70% lower cost than local contractors, with enough daily overlap for live standups, pairing and code review.
Hire C# developers in UK
Overlap across your whole morning (our afternoon)
Hire dedicated C# developers for your UK team without the local price tag. UK companies work with our vetted, full-time C# engineers at 50–70% lower cost than local contractors, with enough daily overlap for live standups, pairing and code review.
Hire C# developers in Canada
4–6 hours of daily overlap with ET and PT
Hire dedicated C# developers for your Canada team without the local price tag. Canada companies work with our vetted, full-time C# engineers at 50–70% lower cost than local contractors, with enough daily overlap for live standups, pairing and code review.
Hire C# developers in Australia
Strong overlap — our morning is your afternoon
Hire dedicated C# developers for your Australia team without the local price tag. Australia companies work with our vetted, full-time C# engineers at 50–70% lower cost than local contractors, with enough daily overlap for live standups, pairing and code review.
Hire C# developers in UAE
Near-complete overlap — just 90 minutes apart
Hire dedicated C# developers for your UAE team without the local price tag. UAE companies work with our vetted, full-time C# engineers at 50–70% lower cost than local contractors, with enough daily overlap for live standups, pairing and code review.
Hire C# developers in Germany
Overlap through your morning and our afternoon (DACH)
Hire dedicated C# developers for your Germany team without the local price tag. Germany companies work with our vetted, full-time C# engineers at 50–70% lower cost than local contractors, with enough daily overlap for live standups, pairing and code review.
Hire C# developers in Singapore
Near-complete overlap — only 2.5 hours apart
Hire dedicated C# developers for your Singapore team without the local price tag. Singapore companies work with our vetted, full-time C# engineers at 50–70% lower cost than local contractors, with enough daily overlap for live standups, pairing and code review.

C# developer rates

Hire dedicated C# developers from Krapton's team in India. Rates below are blended hourly bands; dedicated developers are billed monthly with no lock-in.

Junior (1–3 yrs)
Feature work under senior review
$22–$28/hr
Mid-level (3–6 yrs)
Owns modules end-to-end
$28–$36/hr
Senior / lead (6+ yrs)
Architecture, reviews, mentoring
$36–$45/hr

Why teams hire C# developers from Krapton

Projects delivered: 50+
In-house engineers: 60+
Average client rating: 4.8/5
On-time delivery: 98%

Vetted, full-time engineers
Every C# developer is a full-time, in-house Krapton engineer — never a freelancer or subcontractor.
Ready in 24 hours
Shortlisted C# CVs within a business day and an onboarded developer within two.
Clear hourly rates
Published hourly bands by seniority, billed monthly, with no lock-in.
Your IP, your repos
Full IP assignment, free NDA on request, and all code in your accounts from day one.
30-day replacement
Not the right fit? Free replacement within five business days in the first 30 days.
Real timezone overlap
4–6 hours of daily overlap with US, UK, EU, UAE and AU teams for live collaboration.

Most C# engagements also benefit from these Krapton services. Browse full offerings on the services page.

Hire C# developer

Free consultation · No commitment

Hiring C# developers — answered

Practical answers to the questions CTOs and founders ask us most often before they hire.

How quickly can I hire a C# developer from Krapton?

Within 24 hours of the initial call. We keep a bench of pre-vetted C# engineers, so once you confirm the brief we line up two or three shortlisted CVs within a business day and can onboard the selected developer within two.

How much does it cost to hire a dedicated C# developer from India?

Blended hourly rates for senior C# engineers typically fall in the $22–$45 USD range depending on seniority and engagement length. Dedicated developers are billed monthly with no lock-in.

Are your C# developers full-time employees or freelancers?

Every C# developer you hire through Krapton is a full-time, in-house engineer — we never subcontract to freelancers or agencies. That means consistent code quality, signed NDAs, and a single point of accountability for your project.

Who owns the code and IP my C# developers write?

You do — 100%. IP assignment and confidentiality are covered by the contract and a free NDA on request. All code lives in your repositories, on your infrastructure, under your accounts from day one.

What should I expect a senior developer to know when I hire C# developers?

Expect fluent async/await, including why sync-over-async deadlocks or starves the thread pool, and correct dependency injection lifetimes. A senior C# developer also reads EF Core’s generated SQL, understands memory allocation and the garbage collector well enough to use Span<T> or pooling where profiling shows a need, and can explain when to choose a record, a struct or a class. A short review of a real pull request reveals these skills faster than trivia questions.

Should we build our backend in C# or Java?

Choose the one your team and platform already favor, because both are mature, fast and well supported. C# is the stronger fit if you run on Azure, use SQL Server, need Windows desktop clients or share code with Unity. Java fits better when your organization already runs Spring Boot services, JVM tooling and Kafka-heavy data pipelines. Rewriting a working service from one to the other rarely pays back on technical grounds alone.

Can a hired C# developer migrate our .NET Framework app to modern .NET?

Yes, provided the migration is planned incrementally rather than as one rewrite. The developer inventories blockers such as System.Web, WCF hosting and Windows-only APIs, moves shared libraries first by multi-targeting, and then migrates the web layer route by route behind YARP. Some components may stay on .NET Framework for a period, and that is acceptable. Characterization tests protect behavior at each step, and every step is deployable on its own.

How do you find performance problems in a C# service?

Measure first, then change code. Developers watch live counters with dotnet-counters for GC pauses, thread-pool queue length and allocation rate, capture traces with dotnet-trace, and analyze memory dumps when a leak is suspected. Common culprits are blocking async calls, large object heap churn, N+1 EF Core queries and unbounded in-memory caches. Fixes are benchmarked with BenchmarkDotNet and load-tested before release, so the improvement is shown rather than assumed.

Which .NET version should a new C# project target?

Target the current Long Term Support release unless you need a feature only available in the newer Standard Term Support version. .NET ships a major version every November; even-numbered releases are LTS with three years of support, odd-numbered ones receive shorter support. Plan an upgrade every one or two years, keep NuGet dependencies current with Dependabot or Renovate, and turn on analyzers so deprecated APIs show up as build warnings early.

Keep exploring

More ways to plan your C# build and team with Krapton.

Ready to build with C#?

Get a free 30-minute consultation with our C# team. Clear roadmap, transparent pricing, no obligation.

Hire a developer Schedule a call

Free NDA on request
Response within 24 hours
Certified C# developers
Flexible engagement models
US, UK, UAE & India clients served

Hire a C# developer

A cleaner way to hire C# developers

Async code without deadlocks

EF Core that scales

Framework to modern .NET

Production diagnostics, not guesswork

Why C#?

Versatile application development

Object-oriented programming

Integration with .NET Framework

LINQ (Language-integrated query)

Asynchronous programming

Strong typing

What you can build with C#

ASP.NET Core APIs

Background worker services

Blazor internal tools

Desktop applications

Real-time SignalR features

Unity gameplay code

Modernizing .NET Framework applications without a freeze

C# in action

What our C# developers know

What our C# developers go deep on

Common C# projects we deliver

Porting a WebForms app to ASP.NET Core

Fixing slow ASP.NET Core endpoints under load

Building a multi-tenant SaaS backend in C#

Containerizing .NET services for Azure or AWS

C# solutions by industry

Finance

Healthcare

Manufacturing

Gaming

C# vs Java

How to hire C# developers in 5 steps

Share your brief

Review matched profiles

Interview & test

Onboard securely

Scale or replace

More backend technologies

Three ways to hire C# developers

Dedicated developer

Hourly / time & materials

Fixed-price milestones

Compare ways to hire C# developers

Hire C# developers from anywhere

Hire C# developers in India

Hire C# developers in USA

Hire C# developers in UK

Hire C# developers in Canada

Hire C# developers in Australia

Hire C# developers in UAE

Hire C# developers in Germany

Hire C# developers in Singapore

C# developer rates

Why teams hire C# developers from Krapton

Vetted, full-time engineers

Ready in 24 hours

Clear hourly rates

Your IP, your repos

30-day replacement

Real timezone overlap

Services that pair well with C#

API development

Custom software services

Application development