Comprehensive .NET Development Services
We offer a full suite of .NET development solutions tailored to meet your specific business needs:
Leading .NET Development Company in Sydney
Trusted Microsoft-Certified .NET Developers for Scalable and Secure Solutions
Designpluz is a leading .NET development company in Sydney with over 15 years of experience delivering innovative .NET solutions. Our team of experienced .NET developers are Microsoft Certified Technology Experts, ensuring your project is in expert hands.
.NET Development Company In Sydney
As a leading .NET development company, we design every application with scalability and security in mind. As your business grows, so should your software. Our cloud-native .NET applications effortlessly adapt to increased demands, handling more users and data without costly infrastructure upgrades. Whether you’re a startup with a revolutionary idea, an enterprise aiming to improve customer experience, or anything in between, our .NET development team empowers you to innovate and lead.
.NET Web Application Development
We specialise in building advanced, scalable, and secure web applications using ASP.NET and MVC frameworks. Our solutions are designed to deliver a seamless user experience and high performance.
.NET Application Performance Optimisation
Our backend development expertise ensures that your application performs efficiently under high loads.
.NET Mobile App Development
We create feature-rich, cross-platform mobile applications using Xamarin and .NET MAUI for both iOS and Android platforms.
.NET Windows Desktop Application
Develop secure and high-performance desktop applications using the latest .NET development frameworks.
.NET Cloud Native SaaS Development
Our team builds cloud-based solutions that are highly scalable and secure, ensuring seamless integration with Microsoft Azure and other cloud platforms.
.NET Microservices Development and Deployment
Create flexible and scalable microservices-based architecture using .NET development for enhanced agility and speed.
.NET API Development
We develop custom API integration solutions to enhance connectivity and streamline your business processes.
Migrate to .NET
We help you seamlessly migrate your existing applications to the latest .NET framework for improved performance and security.
.NET Legacy Application Modernisation
Upgrade your existing applications with modern .NET software development techniques, ensuring improved performance and security.
.NET EDI Platforms
Develop efficient EDI platforms to streamline business communications and data exchange.
.NET Custom CRM Solutions
We develop tailored CRM systems using custom .NET solutions to enhance customer relationship management and business processes.
.NET Maintenance And Support
We provide .NET maintenance and support with guaranteed reliability to keep your applications running smoothly and fully updated concerning patches, security upgrades and new features.
Local Expertise, Global Talent
We mesh the strengths of both worlds—global talent and local expertise. Our Sydney-based leaders collaborate with you to identify your business requirements and translate them into technical plans. Our global development team based in India implements these plans with efficiency, providing cost-effective and high-quality solutions.
Future-Proof Technology with MACH Architecture
We adopt the latest MACH architecture approach (Microservices-based, API-first approach, Cloud-Native infrastructure, and a Headless design) to build scalable and adaptable applications.
Our modular architecture ensures flexibility and seamless platform integration. Decoupling the front end and back end enhances customisation and speed with an API-first approach for maximum efficiency.
Discover what our clients have to say about their experiences with us.
Designpluz were quick, efficient, listened to our brief, aligned to our business needs and delivered.
Ben Perrin
Global Head of Strategic Implementation at Lonza
It is rare to find a business that is so attentive these days and delivers such good results!
Jeffrey Tran
Founder At Wok Culture
Why Choose .NET for Your Project?
Here's why you should choose .NET for your project:
High Scalability and Performance
It is created to support high loads with effortless horizontal and vertical scaling.
Strong Security
Intrinsic security capabilities such as authorisation, authentication, and secure communication protocols.
Rich Ecosystem
An Immense library and framework set to speed up development.
Cloud Compatibility
Seamlessly compatible with Microsoft Azure, AWS, and Google Cloud for greater flexibility.
Microservices Architecture
Great for creating microservices-based applications for increased modularity and scalability.
Open Source and Free
Reduced development costs through access to a thriving developer community.
DevOps Integration
Seamless integration with platforms such as Azure DevOps, GitHub Actions, and Jenkins for continuous delivery.
Modern Programming Language
Built using C#, a strong object-oriented language for modern software development.
Rich Development Environment with Powerful Tools.
.NET offers a powerful development environment with tools like Visual Studio and Visual Studio Code for efficient coding and debugging.
Our Promise
At our core, transparency and accountability define our business ethos.
We believe in fostering trust through open communication and clear expectations. Whether we’re handling small-scale tasks or large-scale projects, our commitment remains unwavering. We ensure that every step of the way, our clients are informed and involved, empowering them to make well-informed decisions. Transparency isn’t just a promise; it’s a cornerstone of how we operate, ensuring mutual respect and successful partnerships
We specialise in developing highly scalable cloud native web and mobile applications that streamline business processes and improve customer experience. Outsource your .NET development with Designpluz
Get Started.NET CMS Platforms We Work With
We build content management solutions using leading .NET CMS platforms:
Umbraco
An open-source .NET CMS known for its flexibility and scalability. Suitable for both small and large-scale web applications.
Kentico
A fully integrated ASP.NET platform ideal for developing complex websites, intranets, and e-commerce solutions.
Our Engagement Models
We offer flexible engagement models to suit your project needs:
Fixed-Price Model
Ideal for small projects with a well-defined scope. Best suited for projects lasting less than 2 months.
Time and Materials Model
Our most popular model is suitable for large projects with evolving requirements. We follow Agile development principles to deliver the best results that keep improving over 3 to 12 months.
Dedicated Development Team
Our senior .NET developers have become an extension of your team on a full-time basis for over 12 months, focusing exclusively on your project.
We’ve helped hundreds of Australian businesses lead through digital.
Frequently Asked Questions
What's the average timeline for building a custom .NET solution?
The timeline for a .NET development project varies based on complexity, scope, and specific requirements.
Small to medium projects (e.g., basic web apps, APIs) typically take 3–6 months.
Large or enterprise-level solutions (e.g., custom ERP, SaaS platforms) may require 6–12 months or more.
At Designpluz, we work closely with clients to define realistic timelines that align with business goals. Our structured approach ensures projects stay on track, and we consistently deliver on time without compromising quality.
How much does a .NET project cost when working with a Sydney based company?
The cost of a .NET development project typically ranges from:
30,000–150,000 AUD for small to mid-sized applications (e.g., business web apps, APIs)
150,000–500,000+ AUD for complex enterprise systems (e.g., custom ERPs, scalable SaaS platforms)
At Designpluz, we provide fixed-price quotes or flexible engagement models based on your project’s Complexity. We’re committed to transparent pricing and strict budget adherence—no hidden fees or surprises.
Need an accurate estimate? Book a discovery call to discuss your requirements, and we’ll provide a detailed breakdown.
What types of applications can be built with .NET?
.NET is a versatile framework for developing:
- Web Application
- Mobile Apps
- Desktop Applications
- APIs
- Gaming applications
Why choose .NET for enterprise applications?
.NET excels in enterprise environments due to its:
- Scalability & reliability
- Seamless integration with Microsoft products
- Advanced security & robust error handling
