Hire Vetted .NET Developers
Every engineer passes a live ASP.NET Core architecture screen covering Entity Framework, CQRS with MediatR, Azure integration, and production observability. No CV screening. No trivia. Real C# depth only.
72 hrs
Shortlist
Flat 15%
Fee
14-day
Guarantee
Top 5%
Accepted
ASP.NET Core CI/CD Pipeline
Katarzyna W.
$85-110/hrASP.NET Core · CQRS · Azure Service Bus
Ravi M.
$60-80/hrC# · Microservices · SQL Server
Ana C.
$75-95/hrBlazor · .NET MAUI · SignalR
.NET Vetting That Goes Beyond the Resume
Anyone can list ASP.NET Core and Azure on a CV. We assess whether they can design a CQRS system, tune EF Core query performance, and build production-ready cloud-native .NET applications.
Live ASP.NET Core Architecture Screen
Every engineer completes a 90-minute live assessment covering ASP.NET Core middleware pipeline, dependency injection lifetime management, Entity Framework Core query optimisation, CQRS with MediatR, and production health monitoring with Application Insights.
Azure & Cloud-Native .NET Depth
We assess Azure Service Bus messaging, Azure Functions serverless, Cosmos DB integration with the .NET SDK, Azure AD / Entra ID authentication, and App Service / AKS deployment patterns -- not just whether they have an AZ-900 badge.
CQRS, Clean Architecture & DDD Verified
We screen for Domain-Driven Design bounded context decomposition, Clean Architecture layering (domain/application/infrastructure/presentation), CQRS read/write separation with MediatR, and event-driven patterns with domain events.
EF Core & Database Performance
Entity Framework Core N+1 query identification, AsNoTracking for read-only queries, compiled queries for hot paths, migrations strategy in CI/CD, and knowing when Dapper is the right tool -- not just blindly using EF Core for everything.
Flat 15% Fee, Published
Our fee is 15% on engineer hours -- written in every contract. No undisclosed markups. A senior .NET engineer at $100/hr through OTF costs $115 total per hour, vs $130-140 through typical Toptal or agency channels.
Dedicated Delivery Management
Every engagement includes a dedicated account manager: weekly delivery reporting, sprint velocity tracking, and a direct escalation path. You manage the product roadmap; we manage delivery quality and contractor compliance.
Sample .NET Developer Profiles
Illustrative profiles from our vetted .NET pool. Every engineer has passed a live ASP.NET Core technical screen and verified production experience.
Katarzyna W.
Eastern Europe · 9 yrs
ASP.NET Core Microservices Architect
Designed CQRS-based microservices for a fintech platform processing 200K daily transactions. Deep MediatR pipeline behaviour expertise, Azure Service Bus message choreography, and Clean Architecture enforcement across 12-engineer teams.
Ravi M.
South Asia · 6 yrs
C# Backend & SQL Server Engineer
API-first backend engineer specialising in high-performance C# with Dapper for complex queries and EF Core for writes. Strong SQL Server skills: query plan analysis, index design, and stored procedure optimisation for reporting workloads.
Ana C.
Latin America · 7 yrs
Blazor & .NET MAUI Full-Stack Engineer
Full-stack .NET engineer building Blazor WebAssembly SPAs and .NET MAUI cross-platform apps. Implemented real-time collaboration features with SignalR hubs and Azure AD B2C authentication flows for enterprise SaaS dashboards.
Tomasz B.
Eastern Europe · 8 yrs
Azure Cloud Native .NET Engineer
Azure-specialist .NET engineer building serverless event-driven architectures with Azure Functions and Durable Functions. Experienced with Dapr sidecar pattern for microservice communication and OpenTelemetry distributed tracing across Azure-hosted services.
Sneha P.
South Asia · 5 yrs
.NET API & Identity Engineer
Identity and API security specialist: IdentityServer/Duende configuration, OAuth2 authorisation code flow, JWT validation middleware, and API versioning. Built multi-tenant SaaS authentication layers with per-tenant claim transformation.
Marc D.
Western Europe · 15 yrs
Principal .NET & DDD Architect
Principal architect with 15 years of enterprise .NET. Specialises in event-sourced systems with Marten (PostgreSQL event store), NServiceBus saga orchestration, and Domain-Driven Design aggregate design for complex financial and logistics domains.
Profiles are illustrative. Actual matched profiles are provided after brief submission. Rates are engineer rates before the OTF 15% management fee.
From Brief to .NET Engineer in 72 Hours
A process built around your .NET stack -- not a generic recruiter flow. We match on .NET version, Azure service usage, and architecture pattern depth.
Submit Your .NET Brief
Tell us your stack (.NET version, framework preferences, Azure or on-premise), the architecture pattern (CQRS, clean architecture, minimal API), type of system (microservices, Blazor SPA, MAUI mobile), seniority, and timezone requirements. A 5-minute form or a Slack message.
Stack-Matched Shortlist in 72 Hours
We match your brief against our vetted .NET pool, filtering by framework depth (ASP.NET Core, Blazor, MAUI), Azure experience (Service Bus, Functions, Cosmos DB), architecture pattern familiarity, and seniority. You receive 2-3 detailed profiles with live screen results and production project summaries.
Technical Call & Selection
You conduct a 30-60 minute technical discussion with shortlisted engineers. We provide a suggested question set based on your stack. Most clients select an engineer within 5-7 business days of brief submission. No placement fee at any stage.
Managed Delivery from Day One
Your engineer onboards with a structured checklist: repository access, Azure subscription permissions, CI/CD pipeline walkthrough, coding standards review. Your dedicated account manager tracks weekly velocity, flags blockers, and handles contract administration. Delivery includes Azure subscription permission handover (contributor roles scoped to resource groups, not subscription-level), NuGet package restore verification in CI, and a review of all EF Core migration scripts against the production database schema to confirm no pending or conflicting migrations.
.NET Specialisations We Match
From ASP.NET Core microservices to Blazor SPAs, .NET MAUI mobile, and Azure cloud-native architectures -- we match the specialisation your project needs.
ASP.NET Core Microservices
Clean Architecture microservices with CQRS, MediatR pipeline behaviours, Azure Service Bus messaging, and distributed tracing with OpenTelemetry.
Hire when you need
- ▸Decomposing a .NET monolith into microservices
- ▸Implementing CQRS with MediatR and pipeline behaviours
- ▸Event-driven integration with Azure Service Bus
- ▸Cross-cutting concerns: logging, validation, caching middleware
Azure Cloud-Native .NET
Azure Functions (Durable, isolated worker), Cosmos DB with .NET SDK, Azure AD / Entra ID integration, and AKS deployment with Helm charts.
Hire when you need
- ▸Building event-driven serverless workflows
- ▸Cosmos DB data modelling and SDK optimisation
- ▸Azure AD B2C or Entra ID authentication
- ▸Containerising and deploying .NET to AKS
Blazor Web Applications
Blazor Server for low-latency enterprise tools, Blazor WebAssembly for offline-capable SPAs, SignalR real-time push, and component library integration.
Hire when you need
- ▸Replacing legacy ASP.NET WebForms with Blazor
- ▸Building real-time dashboards with SignalR and Blazor
- ▸Blazor WASM with PWA for offline enterprise tools
- ▸Shared .NET component libraries across Blazor and MAUI
.NET MAUI Cross-Platform Apps
.NET MAUI for iOS + Android + Windows + macOS from a single C# codebase. Platform-specific service injection, MVVM with CommunityToolkit.Mvvm, and shared business logic.
Hire when you need
- ▸Cross-platform mobile app with shared .NET backend logic
- ▸Migrating Xamarin.Forms apps to .NET MAUI
- ▸Enterprise LOB apps for iOS and Android
- ▸Shared business layer between MAUI and Blazor
Entity Framework Core & Data
EF Core migration strategy, query optimisation with AsNoTracking and compiled queries, multi-tenancy with global query filters, and Dapper for complex read queries.
Hire when you need
- ▸EF Core performance bottlenecks in production
- ▸Multi-tenant SaaS with row-level data isolation
- ▸Database migration CI/CD pipeline strategy
- ▸EF Core + Dapper hybrid data access layer
Legacy .NET Modernisation
.NET Framework to .NET 8 migration, ASP.NET MVC to minimal API or ASP.NET Core, WCF to gRPC/REST, and strangler-fig pattern decomposition.
Hire when you need
- ▸Migrating .NET Framework 4.x to .NET 8 LTS
- ▸Replacing WCF services with gRPC or REST APIs
- ▸Incrementally modernising a legacy .NET monolith
- ▸Windows Services migration to Worker Services
The .NET Ecosystem Explained
API framework choice, data access trade-offs, and the .NET version landscape every hiring decision depends on.
Controllers vs Minimal API vs gRPC
ASP.NET Core (Controllers)
Convention-based MVC / API controllers
Best for
Teams familiar with MVC, complex routing, attribute-based configuration, Swagger generation
Verbosity
Medium -- controller + action methods, route attributes
Testability
Excellent -- IActionResult mocking, WebApplicationFactory
Adoption
Still the majority default for enterprise .NET APIs
Watch out
Controller proliferation in large codebases; often mixed with business logic
Minimal APIs (.NET 6+)
Lambda-based endpoint registration, no controllers
Best for
Microservices, high-throughput APIs, serverless Functions, greenfield projects
Verbosity
Very low -- single-file APIs possible
Testability
Excellent -- same WebApplicationFactory testing
Adoption
Fast-growing; Microsoft's recommended default for new microservices
Watch out
Less tooling support for complex OpenAPI generation; organised differently from MVC -- needs discipline
gRPC / Protobuf (.NET)
Contract-first binary protocol over HTTP/2
Best for
Internal microservice communication, low-latency high-throughput inter-service calls
Verbosity
Low after .proto generation -- strongly typed clients
Testability
Good -- grpc-dotnet test server
Adoption
Growing for internal service-to-service communication replacing WCF
Watch out
Browser support limited (needs grpc-web proxy); not suitable for public APIs without transcoding
Entity Framework Core vs Dapper
Entity Framework Core
Strengths
- +LINQ-based queries with IntelliSense
- +Code-first migrations for schema management
- +Change tracking for simplified CRUD
- +Global query filters for multi-tenancy/soft delete
- +Strong tooling and community support
Trade-offs
- -N+1 queries if relationships not carefully managed
- -Generated SQL can be suboptimal for complex queries
- -Overhead for read-heavy reporting workloads
- -Compiled query warm-up required for hot paths
Best for
Write operations, domain object persistence, migrations, multi-tenant apps
Dapper
Strengths
- +Raw SQL with minimal overhead (~2x faster than EF Core)
- +Full SQL control for complex reporting queries
- +Simple to understand -- no magic
- +Excellent for stored procedures and table-valued functions
Trade-offs
- -No migrations -- schema management is manual or separate
- -No change tracking -- manual update logic
- -SQL strings lose refactoring safety without source generators
Best for
Complex read queries, reporting, data warehouses, performance-critical read paths
Strong .NET engineers use both: EF Core for writes and domain persistence, Dapper for complex reporting and read-heavy queries.
.NET Version Landscape
.NET 8 (LTS)
Current LTSSupport until: Nov 2026
- ▸Native AOT support for minimal APIs
- ▸Frozen collections for performance
- ▸Time abstraction (TimeProvider)
- ▸Keyed DI services
- ▸Primary constructors (C# 12)
.NET 6 (LTS)
MaintenanceSupport until: Nov 2024 (EOL)
- ▸Minimal APIs introduced
- ▸Hot reload
- ▸MAUI released
- ▸C# 10
.NET Framework 4.x
LegacySupport until: Windows lifecycle
- ▸Windows-only
- ▸WCF, WebForms, MVC 5
- ▸Full trust / GAC
- ▸No cross-platform
What We Screen Every .NET Developer On
8 competency domains: C# language, ASP.NET Core, architecture, data access, security, messaging, testing, and Azure/DevOps. Every engineer assessed live.
C# Language
C# 12 features: primary constructors, collection expressions
Generics, covariance, contravariance
async/await, Task, ValueTask, CancellationToken
LINQ query expressions and method syntax
Records, pattern matching, switch expressions
ASP.NET Core & APIs
Controller-based and Minimal API routing
Middleware pipeline and request lifecycle
OpenAPI / Swagger / Scalar documentation
gRPC with Protobuf contracts
SignalR for real-time WebSocket communication
Architecture & Design
Clean Architecture (domain/application/infrastructure)
CQRS with MediatR commands and queries
Vertical Slice Architecture
Domain-Driven Design (aggregates, value objects)
Event Sourcing and outbox patterns
Data Access
Entity Framework Core (migrations, queries, N+1)
Dapper for performance-critical raw SQL
Repository and Unit of Work patterns
EF Core performance: compiled queries, split queries
MongoDB / Cosmos DB with .NET SDK
Security & Identity
ASP.NET Core Identity with custom stores
JWT bearer authentication and validation
OAuth2 / OpenID Connect with IdentityServer / Duende
Policy-based and claims-based authorisation
Data protection API and secret management
Messaging & Background Work
Azure Service Bus with MassTransit
RabbitMQ producer/consumer with MassTransit
IHostedService and BackgroundService workers
Hangfire for persistent background jobs
Azure Functions event-driven triggers
Testing
xUnit with Fact / Theory / InlineData
Moq and NSubstitute for mocking
FluentAssertions for readable assertions
WebApplicationFactory for integration tests
Testcontainers for DB and message broker tests
Azure & DevOps
Azure App Service, AKS, Container Apps deployment
Azure DevOps pipelines (YAML)
Application Insights + OpenTelemetry tracing
Azure Key Vault secrets management
Docker multi-stage builds for .NET
Skill levels reflect pool inclusion minimums. Engineers specialise in 2-3 domains at depth. Azure cloud and gRPC assessments are only required when specified in your brief.
How to Interview a .NET Developer
Questions that reveal real ASP.NET Core and C# depth. Syntax quizzes and LeetCode puzzles tell you nothing about Clean Architecture, EF Core performance, or Azure integration skill.
Walk me through how you implement a CQRS command in a Clean Architecture .NET solution -- from the API controller receiving a request to the database being updated, naming every layer and the responsibility of each.
Why this question
Tests Clean Architecture + MediatR depth: controller dispatches IMediator.Send(command), application layer has ICommandHandler<CreateOrderCommand> containing business logic, domain layer holds the Order aggregate and raises domain events, infrastructure layer has the EF Core repository implementation, and the response flows back through Result<T> or FluentValidation errors. Strong candidates draw the dependency inversion clearly -- domain knows nothing about infrastructure.
Red flag answer
I put the logic in the controller and call the DbContext directly. No understanding of CQRS, MediatR dispatch, or layer separation.
Your ASP.NET Core API is producing N+1 queries when loading a list of orders with their line items. How do you identify the problem and what are your resolution options with Entity Framework Core?
Why this question
Tests EF Core depth: enabling detailed logging with LogTo or EF Core query logging to spot N+1, Include/ThenInclude for eager loading, AsSplitQuery for cartesian product avoidance on multi-collection includes, projection to DTOs via Select (avoiding entity tracking for read-only queries), compiled queries for hot paths, and when to drop to Dapper for complex read scenarios.
Red flag answer
I would add .Include() everywhere. No understanding of query analysis, split queries, projections, or when EF Core is the wrong tool.
Design an ASP.NET Core authentication system for a multi-tenant B2B SaaS: each tenant authenticates users via their own Azure AD tenant, and API resources must be scoped by tenant context.
Why this question
Tests ASP.NET Core identity and Azure AD depth: multi-issuer JWT validation using AddMicrosoftIdentityWebApi with multiple schemes or a dynamic issuer validator, middleware to extract tenant ID from the token's tid claim or custom header, IHttpContextAccessor for downstream tenant context propagation, and policy-based authorisation with IAuthorizationRequirement for tenant resource isolation.
Red flag answer
I would validate the tenant ID in each controller action. No understanding of JWT multi-issuer validation or tenant context propagation through the middleware pipeline.
How would you implement a reliable distributed messaging system in .NET using Azure Service Bus with guaranteed at-least-once delivery, idempotent consumers, and a dead-letter handling strategy?
Why this question
Tests Azure Service Bus + MassTransit depth: MassTransit consumer with IConsumer<TMessage>, idempotency via inbox pattern (recording processed message IDs in a DB), ReceiveEndpoint configuration for retry policies (UseMessageRetry), dead-letter queue consumer for poison message handling, and outbox pattern (UseEntityFrameworkOutbox) to ensure message publish is part of the same DB transaction as the state change.
Red flag answer
I would catch exceptions and not re-throw so messages don't go to dead letter. No understanding of idempotency, retry policies, or the outbox pattern.
A .NET microservice handling 10,000 concurrent requests is showing high memory allocation and GC pressure. Walk me through your profiling and optimisation approach.
Why this question
Tests .NET performance depth: dotnet-trace and dotnet-counters for live metrics, PerfView or Visual Studio Diagnostic Tools for allocation profiling, identifying LOH (Large Object Heap) pressure, using Span<T> and Memory<T> to reduce heap allocations, ArrayPool<T> for buffer reuse, ValueTask vs Task for hot async paths, compiled EF Core queries, and response caching with IMemoryCache or IDistributedCache.
Red flag answer
I would upgrade to more powerful hardware. No profiling methodology, no knowledge of .NET memory model or allocation reduction techniques.
Design a Blazor WebAssembly front-end architecture for a complex SaaS dashboard: component state management, API communication, authentication, and offline capability.
Why this question
Tests Blazor depth: Flux/Fluxor for component state vs cascading parameters for simple sharing, HttpClient with IHttpClientFactory and named clients for API calls, MSAL.NET for Azure AD authentication in WASM, PersistentComponentState for pre-rendering, and PWA service worker configuration for offline caching. Strong candidates also discuss Blazor Server vs WASM trade-offs for this use case.
Red flag answer
I would use static fields to share state between components. No understanding of state management, IHttpClientFactory, or Blazor authentication patterns.
6 Red Flags in .NET Developer Interviews
Puts business logic in controllers
Service layer or controller contains business rules that should live in the domain. Candidates who cannot name any layers beyond 'controller' and 'database' have not worked in maintainable .NET codebases.
No async/await discipline
Uses .Result or .Wait() on async methods (causing deadlocks in ASP.NET Core), ignores CancellationToken propagation, or mixes sync and async code paths inconsistently.
EF Core by cargo-cult only
Can scaffold a model but cannot explain lazy vs eager loading, does not know what N+1 queries are, and has never used AsNoTracking() for read-only queries. EF Core misuse is the most common .NET performance killer.
No understanding of DI lifetime scoping
Registers everything as Singleton or does not understand Transient vs Scoped vs Singleton. Injecting a Scoped service into a Singleton (captive dependency) is a common production bug.
Cannot write a meaningful integration test
Has never used WebApplicationFactory<TProgram> or Testcontainers. Tests only unit-test isolated classes -- no end-to-end HTTP + database integration test experience.
Azure = 'just click deploy' experience
Has deployed to Azure App Service via the portal but cannot configure a YAML Azure DevOps pipeline, set up Key Vault references, or explain App Service vs Container Apps vs AKS trade-offs.
.NET Developer Rate Benchmarks by Region
| Region | Junior (1-3 yrs) | Mid (3-7 yrs) | Senior (7+ yrs) |
|---|---|---|---|
| South Asia | $30-50/hr | $50-80/hr | $80-110/hr |
| Eastern Europe | $55-80/hr | $80-115/hr | $115-150/hr |
| Latin America | $45-65/hr | $65-100/hr | $100-130/hr |
| South-East Asia | $35-55/hr | $55-85/hr | $85-115/hr |
| Western Europe | $85-115/hr | $115-150/hr | $150-185/hr |
| North America | $95-135/hr | $135-170/hr | $170-215/hr |
Rates are engineer rates before the OTF 15% management fee. Azure architects, IdentityServer/Duende specialists, and Blazor engineers command a 10-20% premium. .NET 8 MAUI and Blazor expertise is in particularly high demand.
.NET Developer Rates by Region & Seniority
Published engineer rates before the OTF 15% management fee. Senior .NET engineers with Azure architecture and distributed systems experience remain among the highest-demand profiles globally.
South Asia
Junior (1-3 yrs)
ASP.NET Core basics, limited production depth
Mid-level (3-7 yrs)
EF Core, Clean Architecture, Azure experience
Senior (7+ yrs)
CQRS/MediatR, microservices architecture
Eastern Europe
Junior (1-3 yrs)
Strong C# foundation, solid ASP.NET Core fundamentals
Mid-level (3-7 yrs)
DDD, MediatR, Azure Service Bus depth
Senior (7+ yrs)
Architecture leadership, Duende/IdentityServer
Latin America
Junior (1-3 yrs)
Entry-level .NET, some production experience
Mid-level (3-7 yrs)
Microservices, REST APIs, Azure deployment
Senior (7+ yrs)
Architecture, cloud native, CI/CD ownership
South-East Asia
Junior (1-3 yrs)
ASP.NET Core basics, some framework experience
Mid-level (3-7 yrs)
Shipped enterprise .NET applications
Senior (7+ yrs)
Full architecture ownership, mentorship
Western Europe
Junior (1-3 yrs)
CS background, strong C# fundamentals
Mid-level (3-7 yrs)
Enterprise .NET, DDD, event-driven architecture
Senior (7+ yrs)
Principal engineer, architecture governance
North America
Junior (1-3 yrs)
Entry-level with .NET/Azure background
Mid-level (3-7 yrs)
Production ASP.NET Core, distributed systems
Senior (7+ yrs)
Staff/principal, .NET + Azure architecture
Specialisation Premiums
Azure architect / Solution Architect
+15-25%Duende IdentityServer / OAuth2 specialist
+15-20%.NET MAUI cross-platform mobile
+10-20%Blazor WebAssembly / Blazor Server
+10-15%.NET performance engineering (Span<T>, profiling)
+15-25%HIPAA / PCI-DSS / SOC 2 compliant .NET systems
+15-25%.NET 8 is the most performant server-side platform Microsoft has shipped, with benchmark throughput exceeding Node.js and rivalling Rust in several workloads. Senior .NET engineers who understand Azure-native deployment and performance engineering are in consistently high demand.
Open IT Freelancers vs Other Options
.NET-specific vetting is the difference. A developer who followed a Udemy tutorial and a developer who architected a multi-tenant SaaS on Azure look identical on Upwork -- not in our pool.
| Criterion | Open IT Freelancers | Toptal | Upwork | Staffing Agency |
|---|---|---|---|---|
| Vetting method | Live ASP.NET Core architecture screen: CQRS, EF Core, identity, Azure integration, and .NET performance | Algorithm & coding tests -- limited .NET/Azure-specific depth | Self-reported profile and portfolio | CV review, occasional take-home task |
| EF Core / Dapper depth assessed | Yes -- N+1 queries, AsNoTracking, split queries, projection to DTOs tested live | Not systematically assessed | Not assessed | Not typically assessed |
| Clean Architecture / CQRS verified | Yes -- MediatR command/query separation, layer responsibilities, DI lifetime scoping assessed | Not verified | Not verified | CV claim only |
| Azure integration experience tested | Yes -- Service Bus, Key Vault, App Insights, deployment pipeline knowledge assessed when required | Not screened | Not screened | Not screened |
| Management fee | Flat 15% -- published in every contract | ~30-40% markup (undisclosed) | 10-20% platform fee on engineer | 25-40% markup, often undisclosed |
| Time to shortlist | 72 hours | 1-2 weeks | Immediate (unvetted) | 1-3 weeks |
| Matching fee | $0 | $0 (fee in rates) | $0 (fee in rates) | $0-5,000+ |
| async/await discipline verified | Yes -- deadlock patterns, CancellationToken propagation, ValueTask assessed | Limited | Not verified | Not typically verified |
| Replacement guarantee | 14-day free replacement | Trial period (varies) | No guarantee | Varies, often fee applies |
| Weekly delivery reporting | Yes -- dedicated account manager | Not included | Not included | Sometimes, at extra cost |
| Production experience verification | Yes -- live project references, architecture walkthroughs | Not managed | Not managed | Not enforced |
What the Fee Difference Means in Practice
A mid-level .NET engineer at $90/hr working 40 hrs/week for 16 weeks = $57,600 engineer cost.
Open IT Freelancers
$66,240
You pay $66,240 total
Toptal (est. 35%)
$77,760
~$11,520 more than OTF
Agency (est. 40%)
$80,640
~$14,400 more than OTF
Rates illustrative. OTF fee is published -- others are estimates based on typical market markups.
.NET Developers for Every Industry
From PCI-DSS payment services to HIPAA healthcare APIs, Blazor SaaS dashboards, and .NET MAUI cross-platform apps -- our engineers have shipped across regulated and consumer verticals.
Fintech & Financial Services
- ▸PCI-DSS compliant payment APIs with ASP.NET Core + Azure Key Vault
- ▸Real-time transaction streaming with Azure Service Bus + MassTransit
- ▸Audit logging with Event Sourcing and Cosmos DB
- ▸Multi-tenant identity with Duende IdentityServer + Azure AD
.NET advantage
.NET's tight Azure integration, mature security libraries, and high-throughput HTTP pipeline make it the dominant choice for Microsoft-stack financial platforms.
Healthcare & Life Sciences
- ▸HIPAA-compliant patient data APIs with ASP.NET Core + SQL Server encryption
- ▸HL7 FHIR-compliant .NET services for EHR system integration
- ▸Azure Health Data Services integration for interoperability
- ▸Background processing with IHostedService for clinical batch jobs
.NET advantage
.NET's C# type safety, HIPAA-aware Azure cloud services, and mature encryption libraries make it a natural fit for regulated healthcare workloads.
E-Commerce & Retail
- ▸High-throughput product catalogue APIs using Minimal APIs + output caching
- ▸Order management with CQRS + Azure Service Bus saga orchestration
- ▸Azure Cognitive Search integration for product search
- ▸Blazor Server admin dashboards for inventory management
.NET advantage
.NET 8 Minimal APIs deliver some of the lowest latency HTTP throughput of any server-side platform, critical for peak e-commerce load handling.
SaaS & Enterprise Software
- ▸Multi-tenant SaaS backends with per-tenant EF Core schema isolation
- ▸Blazor WebAssembly SPAs for data-intensive B2B dashboards
- ▸SignalR real-time collaboration features (notifications, live updates)
- ▸.NET MAUI cross-platform desktop and mobile client apps
.NET advantage
The .NET ecosystem offers the most complete Microsoft-stack path for SaaS: Blazor for frontend, ASP.NET Core for APIs, and Azure for infrastructure -- with a single language and shared libraries throughout.
Sample Client Briefs We Match
ASP.NET Core Fintech API -- Azure Service Bus + CQRS
Senior .NET engineer for a payment processing microservice. Requirements: Clean Architecture with MediatR CQRS, MassTransit + Azure Service Bus for event publishing with outbox pattern, EF Core with SQL Server (read/write replica routing), Duende IdentityServer JWT validation, and Application Insights telemetry. xUnit + Testcontainers integration testing required.
Blazor SaaS Dashboard + SignalR
Mid-level .NET engineer for a B2B analytics SaaS. Frontend: Blazor WebAssembly with Fluxor state management and Radzen component library. Backend: ASP.NET Core Minimal APIs with Azure AD multi-tenant auth. SignalR hub for live dashboard updates. EF Core + SQL Server for data layer. Azure Container Apps deployment via GitHub Actions.
.NET MAUI + API -- Cross-Platform Enterprise App
Senior .NET engineer for a cross-platform field operations app (iOS + Android + Windows) with .NET MAUI. MVVM architecture with CommunityToolkit.MVVM, offline-first SQLite local storage, background sync to ASP.NET Core API via Azure Functions triggers. Azure Active Directory B2C authentication. Must have shipped .NET MAUI or Xamarin apps to production.
.NET Hiring Questions Answered
Clean Architecture vs Vertical Slice, EF Core vs Dapper, Blazor, MAUI, Azure -- the real questions clients ask before hiring .NET engineers.
Before You Hire
Free Developer Hiring Guides
Written by our engineering team - no fluff, just the frameworks that work.
Cost of Hiring Remote Developers in 2026
Developer rates by region, hidden cost breakdown, TCO comparison across DIY vs managed platforms, and a complete budgeting guide.
How to Vet a Developer in 2026
The 7-day vetting framework, technical interview questions, take-home test design, and red flags - built for non-technical founders.
Freelance vs In-House vs Agency Developers
Stage-by-stage decision framework for founders and CTOs. Cost, speed, and risk tradeoffs - with a clear verdict for each company type.
Our Vetting Funnel
Only the top 5% of .NET applicants join our talent pool.
Hire a Vetted .NET Developer
Submit your brief. Receive matched .NET profiles within 72 hours. Flat 15% management fee -- no surprises.
72-hour shortlist
Matched .NET profiles delivered within 72 hours of your brief
Live ASP.NET screen
Every engineer passes a 90-min .NET-specific technical assessment
14-day replacement
Free replacement within 14 days if the engineer is not the right fit
Flat 15% fee
Published in every contract -- no hidden markups or placement charges
EF Core depth verified
N+1 queries, projections, and migration strategies assessed live
CQRS / MediatR tested
Clean Architecture command/query separation verified in screen
Azure experience
Service Bus, Key Vault, App Insights knowledge assessed when required
Production verified
Live project references and architecture walkthroughs required
No placement fee. No lock-in contracts. 14-day free replacement guarantee.