.NET

Consulting

&

Custom

Software

Gold Microsoft Partner | 100% U.S.-Based | Vetted Employee Consultants

With 17+ years of development experience and an average consultant tenure of 5+ years, Keyhole Software delivers high-quality, full-stack .NET solutions. As a Gold Microsoft Partner, we bring proven expertise in C#, .NET Framework, .NET Core, and modern cloud technologies—always using the right tools for each project’s unique needs.

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.NET Consulting Services

Keyhole Software delivers quality, full-stack .NET solutions. As a Gold Microsoft Partner with proven expertise in C#, .NET Framework, .NET Core, and others, we use the right tool for each unique project.

Advisory & PoC Services

We provide strategic analysis and tailored guidance for modernizing legacy .NET applications. Whether it’s migrating to the cloud, implementing microservices, or automating DevOps, we help organizations future-proof their technology.

Custom .NET Application Development

From start to finish, we build scalable, maintainable, and high-performance web, desktop, and mobile applications—or enhance existing solutions with new features that align with your goals.

Architecture & Design

Our architects design robust .NET ecosystems that meet scalability, security, and maintainability requirements—ensuring your system is built to evolve.

Project Augmentation

Need to extend your team? Our proven Keyhole consultants integrate seamlessly into your development team, providing just-in-time expertise in .NET development, architecture, or leadership.

Why Choose Keyhole For .NET Development

Award - Top .NET Developers in Kansas 2025

Award - Top .Software Developers in Kansas 2025

Gold Microsoft Partner

Proven Expertise In .NET

As a Gold Microsoft Partner, Keyhole brings validated expertise in .NET technologies, ensuring businesses get the most out of modern Microsoft solutions.

Elite Competency Tier - This Microsoft partnership level signifies that Keyhole has achieved the highest level of competence with .NET technologies.

Certified Experts – Our team has proven its expertise directly to Microsoft, passing rigorous exams validating their .NET knowledge.

Proven Client Results – Clients recognized our excellence implementing scalable, high-performance .NET solutions across industries.

With direct access to Microsoft resources and a proven track record across industries, we deliver efficient, future-ready software solutions tailored to your business needs.

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Keyhole Experts

Our consultants specialize in C#, .NET Core, Azure, and full-stack cloud architectures, helping organizations build scalable, secure, and high-performance applications.

Keyhole Software's 100% U.S.-based, employee consultants bring an average of 17+ years of experience across industries like healthcare, finance, and energy, ensuring deep .NET expertise and seamless collaboration.

All Keyhole consultants are vetted employees—no C2C or offshore resources—so your project benefits from high-quality code, smooth team integration, and strategic guidance that drives real business value.

.NET Technologies

Technologies and Tools That Our Team Has Used Recently

Keyhole consultants have command over a variety .NET technologies and we’ve helped organizations across healthcare, finance, energy, and insurance modernize and scale their .NET applications. We are tool agnostic, meaning we use the best .NET tool, framework, or technology for each project or requirement. Significant experience surrounds .NET Core, ASP.NET, C#, .NET Maui, and Xamarin.

Recent .NET Client Successes

Transforming Insurance Operations with a Full-Stack Data Solution

Wind Energy Storage App – .NET Enhancement

[.NET & JS] Sr. Consultant Contributions at Healthcare Client

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Recent Thought Leadership In .NET

Stay ahead in the ever-evolving .NET ecosystem with our expert insights. Our thought leadership articles, tutorials, and case studies provide practical strategies, best practices, and deep technical knowledge to help developers and businesses optimize their .NET applications, architecture, and performance.

Long-Running Workflows Made Simple with C# + Azure Durable Functions

Using .NET MAUI to Create a Google Maps App

Keyhole Named Top Software Development Firm in Kansas City By Clutch

.NET Performance Video Insight

Chief Architect Zach Gardner shares the best ways to improve .NET performance including optimizing code, utilizing efficient data structures, and leveraging caching strategies.

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.NET Modernization & Cloud Migration

Future-Proof Your .NET Applications

Modernizing legacy applications is crucial for performance, scalability, and security. Keyhole Software helps businesses replatform, refactor, and migrate their applications to modern architectures—whether moving from .NET Framework to .NET Core, transitioning to microservices, or leveraging Azure’s cloud-native capabilities. Our team specializes in:

Cloud Migration & Optimization
Seamless transitions to Azure, AWS, or hybrid cloud environments.

Legacy System Modernization
Upgrading .NET Framework applications to modern, scalable architectures.

Microservices & Containerization
Breaking down monoliths into agile, high-performance services with Docker, Kubernetes, and API gateways.

Performance Tuning & Cost Optimization
Enhancing application speed, reliability, scalability, and efficiency.

Recent .NET Case Study

Large-Scale COBOL Modernization and Microservices Implementation with .NET Core

"We have a very high respect for [Keyhole Consultant] and he has bailed [us] out of several potentially large, critical problems. He has done very well for us and has reflected well on your company too."
- Engineering Manager, Multi-National Railroad System Corporation

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We've provided .NET solutions to 100+ clients

Here are some frequently asked questions our clients have had about .NET services.

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View Our Successes

We offer flexible engagement models to meet your project’s unique needs:

Software Outsourcing
Our project management + software development team builds end-to-end solutions for you.

Dedicated Dev Teams
A fully integrated, dedicated consulting team works continuously on your long-term .NET project.

Fractional & Advisory Services
Our senior software leaders provide strategic guidance to drive digital transformation.

Staff Augmentation
Our .NET developers and specialized experts join your team to accelerate development.

Whether you need a full team to build a custom .NET application, expert consultants to integrate with your existing team, or strategic guidance to modernize a legacy system, our U.S.-based, vetted consultants provide the right expertise at the right time.

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.NET microservices architecture allows applications to be broken into independent services that can be deployed, scaled, and maintained separately.

With ASP.NET Core, Docker, Kubernetes (AKS), and gRPC, we design high-performance, cloud-native applications that optimize resource utilization, enhance fault tolerance, and improve deployment efficiency. By leveraging Event-Driven Architecture (EDA) and RESTful APIs, we ensure seamless communication between microservices, resulting in a more resilient and scalable system.

We follow best practices for clean code, unit testing, DevOps automation, and security-first development. Our consultants utilize SOLID principles, dependency injection, and CI/CD pipelines with Azure DevOps or GitHub Actions to streamline development and deployment.

With an average of 17+ years of experience, our team ensures that every .NET solution we build is maintainable, efficient, and aligned with business goals.

Yes, legacy system modernization is one of our core specialties. We help organizations transition from monolithic .NET Framework applications to modern, cloud-ready architectures using .NET Core, Blazor, and microservices. Our team has extensive experience migrating COBOL, VB6, and outdated .NET applications to scalable, maintainable solutions that integrate with Azure, AWS, and Google Cloud environments.

Ready For Keyhole's .NET Experts To Accelerate Your Project?

Let Keyhole Software provide the expert .NET developers, architects, and consultants you need to build, modernize, or scale your application

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