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A+ rating

Average 5.00 rating
What's included

Multiple C# .NET capabilities, one accountable team.

You can avail our team according to your requirements – single deliverable, an embedded developer or a complete modernization program.

Azure Cloud API Integration Software
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Custom C# .NET Software Development

Bespoke business applications to streamline your workflow, and not a generic template.

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Dedicated C#.NET Developer Hire

Custom linAn embedded developer or full team working directly in your codebasee-of-business apps built on Dataverse and surfaced directly inside SharePoint.

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ASP.NET Core & MVC Web Development

Secure, scalable web applications on ASP.NET Core, MVC and Blazor.

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Performance & Code Optimization

Profiling and refactoring to fix slow queries, memory leaks and bottlenecks

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C# API & Backend Development

Fine tuning between your existing systems and third-party services with REST and gRPC APIs

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Cloud-Native Development on Azure

C# applications architected for Azure App Service, Functions and containers.

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Legacy .NET Modernisation & Migration

Upgrade .NET Framework and WebForms apps to .NET 8 without a risky rewrite

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Desktop Applications (WPF & WinForms)

Windows desktop software for internal tools and specialist industry systems.

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Platforms

Technologies our C#.NET developers work in

It’s not imposing of rebuild on our preferred tools but integrating a perfect stack to your existing systems.

From custom C# .NET software and ASP.NET Core to MVC, Blazor, APIs and legacy .NET modernisation, we bring together the right technologies for your application needs. Our capabilities also extend across WPF, WinForms, .NET MAUI, Entity Framework Core and SQL Server, supported by Azure App Service, Azure Functions, Docker and Azure DevOps. This approach keeps your C# .NET environment secure, scalable and aligned with your business goals and future growth.

Benefit’s the Services

Get the right C# .NET stack, tailored to your business needs.

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Tailored C# .NET Stack

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Flexible Architecture

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Scalable Azure Infrastructure

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Connected Systems & APIs

Core Language & Frameworks

C#.NET 8ASP.NET CoreMVCBlazor

Data & APIs

Entity Framework CoreSQL ServerWeb APIgRPC

Desktop & Cross-Platform

WPFWinForms.NET MAUI

Cloud & DevOps

Azure App ServiceAzure FunctionsDockerAzure DevOps

How We Deliver

Our C#.NET engagement process

A clear, collaborative approach from initial scoping through launch and ongoing support. We align the engagement with your codebase, goals and preferred delivery model, then build in focused sprints with regular reviews and demos

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Scoping & Analyzing Goals

02

Proposal or Onboarding developer

03

Build in sprints

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Launch & Ongoing support

Codebase Review Goal Alignment Engagement Model Project Scope

We understand your codebase, goals and preferred engagement model — hourly, dedicated, or fixed-price.

Codebase Review Goal Alignment Engagement Model Project Scope

A fixed-price proposal, or a shortlist of matched developers, within 5 business days.

Codebase Review Goal Alignment Engagement Model Project Scope

Weekly demos and code reviews so you can always see working software, not just status reports.

Codebase Review Goal Alignment Engagement Model Project Scope

Go-live plus an optional maintenance retainer for patching, upgrades and small feature work. 

Hey 👋 I am Gokul, Sr. Business Consultant
Hey 👋 I am Gokul, Sr. Business Consultant
Let's talk about your growth
Why CDU for C#.NET

The C#.NET engineers who ship production with accountability, not just to tick a skills box.

We love to be proactive and hence our C#.NET practice sits inside our wider Microsoft & .NET team, Dynamics 365, SharePoint and Azure integrations are second nature, not an afterthought.

Typical outcomes

What changes after a C#.NET engagement

Figures below are typical ranges reported by clients across recent engagements, not guarantees.

User Training

60%

Faster Onboarding

Integrations

130+

Dealerships Connected

Operations

99.9%

Platform Availability
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Client Testimonials

Trusted by Businesses.
Backed by Results.

Real partnerships. Honest feedback. See why organisations across Australia trust Cloud Downunder to design, build, and support their digital products.

A special shout-out to Sam, who was incredibly professional, knowledgeable, and dedicated. Sam took the time to understand my needs and expectations for a future Mercedes-Benz App and went above and beyond. His attention to detail and commitment is evident in every aspect of his work. In addition to his technical expertise, it is clear that Sam is genuinely invested in the success of his clients. If you're looking for a reliable, talented, and customer-focused app development company, look no further than AppGurus.

AppGurus built a platform to manage the driver compliance paperwork and fault reporting system for heavy vehicles. It could automatically review all paperwork, sending notifications when there were issues. AppGurus showed genuine passion for the project, giving invaluable technical insights.

AppGurus managed the project well despite the changes in the scope and design. The team constantly communicated through messaging apps at every key deliverable. They also collaborated through in-person meetings.

AppGurus ensured a smooth workflow through frequent communication and prompt customer support — they were always quick to respond to any queries or concerns. The team was also proactive in terms of sharing helpful ideas. They loved my concept and understood my target market really well.

AppGurus was helpful, timely, and efficient at collaborating via Basecamp. Moreover, they embraced the client's vision very well and were communicative, responsive, and solutions-oriented. They were very quick to embrace my vision, providing me with endless solutions for anything I asked for.

AppGurus offered strong interpersonal relationships that optimized the development process. The apps have remained in the top positions of the education genre in the Apple Store. I appreciate AppGurus' loyalty and understanding. We've formed a bond and trust with each other, and we respect each other's opinions.

We came to AppGurus with an idea and extremely basic wireframe of our concept. They provided priceless industry knowledge, transparency and understanding as part of the design and construction process. As a startup with no app development or programming knowledge, the experience of AppGurus turned our idea into a polished, fully functioning product. The continuing support we have received after completion of our app has been exceptional.

I moved to AppGurus in 2019 after using another company for a number of years and not being satisfied with the quality of work. The change was the best thing I ever did for my app. AppGurus actually listened to exactly what I wanted out of my app and nothing was too hard for them - as well as their pricing was attractive. I would happily recommend AppGurus to anyone whether they are wanting a development done from scratch or already have a product and they are not happy with their current service. I'm very excited about the future of my app knowing I have the backing of AppGurus if I need anything.

Where to begin? We can all conceive that app development is highly specialized. Client expectations have to be managed especially where projects take on a life of their own, creating options that could never have been envisaged at the start. In our case, subject to certain parameters, AppGurus became a quasi partner in fulfilling the dreams we had of our project. The integration of their ideas into our project was priceless. This does not happen in normal business dealings. Big Thumbs Up AppGurus.

I approached the AppGurus to transform my Homeworthy Inspection System into a mobile app. They guided me through the entire process and made Homeworthy a robust platform by utilising my vision and industry experience. Many businesses and individuals now conduct their inspection services using Homeworthy and the numbers are growing. I personally have saved 2 hours per day on inspection reports, by simply using the Homeworthy app. It's a fast and reliable experience.

We never felt that we were dealing with sales people, but rather with a team that had a deep technical understanding. AppGurus built an app to improve communication between the client and their customers. They also integrated an AI element to make custom recommendations to users.

Working with the AppGurus was very professional and streamlined. They took my vague descriptions of what I wanted and turned them into something real and functional. There was a lot of extra guidance which has been quite valuable in shaping Eater Meter to what it is today. I highly recommend AppGurus for any sort of web-app related development.

These guys are great and easy to work with. Their patience and service has been amazing considering we come from a non tech background. Highly recommend them.

AppGurus provided the outcome what I was expecting. I just shared my idea with their team which I wanted to publish in the market and they guided me and made this product in a very efficient way. My apps are available on stores and I am really happy with the service they provided.

App Gurus delivered a fully-optimized product that went beyond the project's original scope, much to the client's delight. The team was highly communicative, and internal stakeholders were particularly impressed with the vendor's team dynamic, work ethic, and solutions-based approach.

The app has earned a significant amount of downloads since its launch. Thus far, the platform has satisfied expectations and matches the original vision. App Gurus is dedicated to the project, ensuring they’re approachable and timely in the case of issues.

App Gurus listened to client needs and ensured any technical issues were resolved quickly. The cost was higher than expected, and there was a slight staffing mishap early on, but user responses have been good.

App Gurus has delivered a functional and easy-to-use app in a timely manner. The team has ensured stellar communication and efficiently addressed the project requirements. Their receptiveness, design competencies, and innovative approach are key elements of their work.

Boasting a strong understanding of the client's needs and goals, allowing them to confidently deliver a solution that matched. The reliable team utilized Basecamp to manage the project and collaborate effectively with the client throughout. Their high-quality design and development work stood out.

Thanks to App Gurus' efforts, the client was able to establish a clear scope for a web-based solution while tailoring the apps for their target audience. The app also allowed businesses to sign up and manage their menus. Overall, the team was easy to work with and dedicated to the project.

Decided on App Gurus to save time and effort. They understood what I wanted, and I loved their enthusiasm and energy from the beginning and felt that they were the right people to work with. They provided various options and a quote that was unbeatable which was a contributing factor to my decision to work with them within a specific budget. They guided me through the processes step-by-step and I received some great advice along the way.

App Gurus has successfully delivered a fully functional website and mobile app, satisfying the client's needs. The team utilizes their in-depth knowledge to deliver quality outputs and provide helpful advice. The partners interact through email and messaging apps. Their knowledge is impressive.

Love the design of my app and very happy with the progress. Sam and his developers have gone the extra mile to give me a great product. Looking forward to launching this summer!!

I have been very happy to work with App Gurus on my project. It was a complex project, and it took time to refine it to conform to my ideas. They approached it with patience and professionalism, and I am definitely pleased with the final outcome.

My company engaged App Gurus to create a new portal linking several off the shelf software items using API. Not only was App Gurus affordable, their work was completed within timely and correctly. I would have no hesitation in recommending Sam and App Gurus for your next project.

When I was looking for a company to take on my app, most companies wanted to charge me more than my budget just to create a proof of concept. App Gurus came up with a plausible solution on how to make my idea work at our first meeting. This was my first app development project and the team walked me through the process to not only build the app, but also assisted with all things Apple and getting it on to the App Store. The result is a very professional and funky product.

Despite setting high expectations, App Gurus managed to exceed them. I had a unique job that required some out of the box thinking and App Gurus was up to the challenge. Their ongoing support was excellent - actively seeking my feedback, being patient with all my requests and prudently addressing them. I’d highly recommend their services if you’re looking for a job to be done right.

01 / 30

4.8

Average Rating

Across Leading Review Platforms

Independent reviews that speak for us
Top B2B Company
4.8
out of 5
Verified Google Reviews
4.8
out of 5
Top Software Development Company
4.8
out of 5
Client Testimonials

Frequently Asked Questions

Everything you need to know about Cloud Downunder's services, process, and Australian-local approach.

Still have questions?

We're here to help. Reach out directly and our specialists will respond within 2 business hours.

Responds within 2 business hours.

Rates vary by seniority and engagement model: junior C#.NET developers typically sit at the lower end of the market, while senior engineers with ASP.NET Core, Azure and architecture experience command a premium. Hourly, dedicated-team and fixed-price terms all price differently, so we give you indicative AUD market rates upfront and a firm quote after a short scoping call — no guesswork before you commit.

Fixed-price suits well-defined projects with a clear scope, like a single application build or an API integration. A dedicated developer or team suits ongoing product work, evolving requirements, or when you want an engineer embedded directly in your codebase long-term. We'll recommend the right model once we understand your roadmap during scoping — and you're never locked into one approach.

Yes. Legacy .NET modernisation is one of our most requested services — we upgrade .NET Framework and WebForms applications to .NET 8 incrementally, migrating module by module rather than forcing a risky big-bang rewrite. This keeps your application running throughout the migration and lets you validate each piece before moving to the next.

ASP.NET Core is the underlying framework; MVC is a pattern for building traditional server-rendered web apps on it, while Blazor lets you build interactive UIs in C# instead of JavaScript, running either server-side or in the browser via WebAssembly. We'll recommend the right fit based on your team's skills, performance needs and how interactive the application needs to be.

Yes. We architect C# applications for Azure App Service, Azure Functions and containers, and our C#.NET practice sits inside our wider Microsoft and Azure team — so Dynamics 365, SharePoint and Azure integrations are handled natively rather than bolted on by a separate vendor.

We build REST and gRPC APIs that integrate your existing systems with third-party services, internal tools, and other applications in your stack. Whether it's a new API layer or fine-tuning an existing one, the goal is clean, well-documented integration points rather than fragile point-to-point connections.

There's no developer lock-in. If a hired C#.NET developer isn't the right technical or cultural fit, we replace them promptly at no extra cost to you, so your project timeline isn't held hostage to one individual placement.

Yes. Our C#.NET developers are Australia-based and deliver stand-ups, demos and support aligned to AEST/AEDT business hours — not overseas overnight shifts — so your team gets real-time collaboration rather than waiting a day for a reply.

Ready to scale your growth?

We help ambitious teams build digital products and campaigns that convert.

200+ clients
48h response
How can I get in touch?

Reach us via the contact form, email, or phone. We'll connect you with the right expert.

What support do you offer?

From strategy and design to development, cloud, AI, and ongoing support we're with you every step.

How fast will I get a reply?

We typically respond to all enquiries within 1 business day.

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