MYER
Developed and maintained scalable Warehouse Resource Management software.
Legacy Software Modernisation Services
Modernise Outdated Applications with Risk-Free Solutions
Anglicare
Mobile app with archibus integration kiosk stand software development.
Visuals2Go
Cross platform mobile & tablet app for disabled people.
NobleOak
A complex financial model with end-to-end and ai customised user journey.
SydneyWater
Custom software integration between sap erp and ineight (project controls software).
Hillsong
Mobile donations form with payment gateway integration.
Metro Finance
Design and developed web application to manage & streamline shifts.
Site360
SaaS platform – Geofenced visitor management & fully customisable workflow forms.
Acorn Rentals
Custom accident replacement vehicle system that automates the entire rental process.
TaxToday
Streamlining instant refunds with highly secure cloud native application.
Expert Legacy System Modernisation in Australia
Legacy systems can quietly bleed your business, draining time and costing money, while also limiting growth. At Designpluz, we offer end-to-end legacy software modernisation services for start-ups and enterprises with smarter, scalable solutions. We help migrate outdated software into high-performing, secure, and future-ready systems with zero downtime.
We focus on transforming your existing systems into efficient and cloud-ready solutions with data protection, empowering your business to stay competitive, reduce operational costs, and confidently embrace innovation. With minimal disruption to your operations, our services improve performance, reduce technical debt, protect data and provide the flexibility to integrate with modern platforms. Unlock the full potential of your technology and keep your business future-ready with Designpluz.
Modernise Your System TodayCase Studies
We pride ourselves on the work we deliver and the outcomes we achieve for our clients everyday.
Our commitment to client satisfaction is evident through our genuine 5-star google reviews
I have been working with Designpluz for the past year, and found the team to provide fantastic support in leading various projects.
Steve Jenke
Site 360
The Designpluz team has allowed us to accelerate the time to market for our platform, translating to money in the bank.
David Philips
Biode
I wish I could give you more than 5 Star for the work you have delivered for me Designpluz Team. Your work is fantastic and the professionalism is top notch.
Shashi Singh
YourOSHC
I’ve recently worked with the Designpluz team to develop our site, they have taken a complex offline model and built this into our website.
Sara Gill
NobleOak
I was looking for a design team that could build me a new website and solidify our brand in the market. If I were building a critical website in future, this would be my go-to team.
David Gleig
Bedbug Wholesale
Thx for helping us with our website design and development for our new venture. You made it really easy for us to consider the options available and delivered a great website which presents our services and capability succinctly and professionally to our target clients.
Manish Goklaney
Verveo
The team went above and beyond to launch earlier than expected and handled every challenge with patience and care. They were always responsive, easy to communicate with, and proactive in finding solutions.
Florencia Nicogossian
Topaz Furniture
Working with a dedicated project manager who was our single point of contact made communication seamless and efficient, which allowed us to go live on time and on budget
Mark Camilleri
Bremick
CRC have had a great experience with Designpluz on the development and implementation of our new website. They were thorough in their work making sure our specifications were met with accessibility in mind, and they provided a wonderful contemporary look.
Gwen Rogers
Community Restorative Center
Designpluz is an amazing company to work with! Everyone in their team is lovely to work and collaborate with. They always action task efficiently to make beautiful end results.
Amarni Story
New Age Veneers
Working with Designpluz was a great experience to build our Strathfield Plaza Website. Response time was commendable and overall result was great. Thanks to Mia and the Team!!
Matthew Woo
Strathfield Plaza
An experienced team, a bunch of great people, and simply amazing work. Designpluz was very patient with us as we chopped and changed our project
George Khoury
Knomis
Transparency is key in any partnership, and Designpluz excels in this aspect. They're upfront about their processes, timelines, and costs, which instills trust and confidence in their services.
Trinh Bui
Newington Lane
Priya and Mia have assisted us with our website updates and have been so professional, listening to what we wanted and providing us with updates throughout the process. ...they are so skilled at what they do and excellent at communicating with us on our level!
Joanne Baldwin
KU Legal
Priya and the team were fantastic to work with. They took the time to understand our brief, and deliver amazing results with high attention to detail.
Tommy Lim
SF Capital
The team at Designpluz are fantastic - quick responses; excellent work and just so easy to deal with particularly for website support. They are my go to for any website work.
Anthony Gray
MEAUST
Their answers to questions and general communication was very good which made the whole process a little easier.
Rob Archibald
Emjay Products
They are approachable, responsive, and have consistently taken the time to understand our marketing needs, accommodating all our requests with professionalism and efficiency. Looking forward to continued growth with Designpluz.
Jocelyn Szot
Nover
Our Numbers Tell Our Story
We design and develop high-caliber softwares.
100
Five-star Google reviews showcasing our commitment to excellence.
40
In-house technology experts driving innovation and quality.
50,000
Australians use our software every day to streamline their work
1,000
Successful projects delivered with precision and expertise.
100
Australian-owned family business with 15+ years of proven reliability
40
Processed annually through our software, empowering businesses.
Our Legacy Modernisation
Services Include
Application Modernisation
We re-architect, rebuild, and enhance current applications to improve performance, scalability, maintainability, and user experience. We modernise without disrupting core business processes, where the legacy system will likely be deeply embedded.
Cloud Migration
We offer cloud migration via modern cloud platforms like AWS, Azure, or GCP for greater scalability, flexibility, and cost efficiency.
UI/UX Modernisation
We modernise legacy systems for UI/UX through audits, design work, updates, and usability/accessibility improvements. This delivers modern, intuitive, and responsive digital experiences across web and mobile platforms.
Data Migration
We help migrate and consolidate your data to the new platform securely and efficiently. We ensure application integrity and consistency while minimising downtime.
Security Improvement
We help to reinforce your security protocols and patch vulnerabilities to improve compliance with cybersecurity requirements and standards, even when dealing with limited or missing documentation in legacy systems.
Application Reengineering
Re-engineering applications means building them from the ground up. We leverage modern frameworks to maximise flexibility, production performance, and governance.
Mobile and Tablet Compatibility
We modernise your legacy applications to mobile and tablet layouts, usability, and responsiveness to provide a better experience on any device.
Software Integration
Legacy platforms often lack compatibility with modern APIs and third-party tools, limiting automation and innovation. We bridge this gap with scalable, future-ready integrations that enable seamless connectivity and improved operational efficiency.
Why Choose Designpluz?
Expertise in Modern Tech Stacks
We use modern technologies to develop outdated software with modern and high-performance features that are in line with today's digital standards. We also apply MACH Architecture principles, using Microservices, API-first development, Cloud-native platforms, and Headless systems, to build modular, scalable, and future-ready solutions.
Customised Modernisation Strategy
Our Sydney-based developers create custom legacy modernisation plans aligned with your architecture, technology, and business goals. We address data silos and inefficiencies, and where a full rebuild isn’t needed, we optimise key components to reduce costs and extend system lifespan.
End-to-End Modernisation Services
We provide complete software transformation services, system audits, application re-engineering, deployment and application migration. Our approach gradually replaces components while keeping core operations running, minimising disruption, and reducing cost.
Strong Security & Compliance Focus
We implement enterprise-grade security, encryption, secure APIs, etc., to ensure that your modernised legacy system follow best practices and meets Australia's data and compliance requirements.
Post-Launch Support & Scalability
After launch, we offer ongoing support, performance tuning, and identification of scaling options to keep your system reliable and adaptable.
The core technologies powering our software solutions.
Building future-proof bespoke software tailored to specific business needs requires the right tools and technologies.
Benefits of System Modernisation
Improved Performance
With legacy application modernisation technologies, your applications are faster and more responsive. It eliminates bottlenecks, downtime, and boosts productivity, with faster load times, and is responsive on all devices and platforms.
Reduced Maintenance Expenses
Modernising legacy systems helps reduce technical debt and maintenance costs by replacing or upgrading unstable components. This improves system reliability while freeing up IT budgets and resources, allowing organisations to focus on innovation and strategic growth.
Improved Security & Compliance
Legacy systems often linked to vulnerabilities. Strengthening them improves your overall defence posture, aligns your systems with modern compliance requirements, and helps keep your business up to date with evolving data protection regulations.
Seamless Integration Capabilities
Software can directly integrate with APIs, CRMs, ERPs, and other business applications in a smooth manner so that your system sit alongside newer technologies.
Access to Real-Time Data & Analytics
With legacy system upgrades, you can access your real-time business data without any interruption, which leads to better decisions, operational intelligence, and performance monitoring. With advanced analytics, dashboards, and reporting features provide deeper insights to drive efficiency and growth.
Competitive Advantage
Modern technologies enable greater flexibility to innovate and respond quickly to market changes. Upgrading legacy systems helps businesses stay competitive, adapt faster, and thrive in today’s fast-paced digital environment.
Our Legacy Modernisation Process
Step 1
Discovery and System Audit
We start with a complete audit of your current systems to address gaps, technical debt, and opportunities for a seamless enterprise software upgrade of your legacy systems to fit your business.
Step 2
Define Modernisation Goals & Strategy
Collaboration is key to our strategy. We work with you to establish clear objectives and create a custom roadmap for an effective legacy application upgrade aligned with your vision.
Step 3
Application & Data Modernisation
We reengineer application logic, migrate legacy databases, and modernise system architecture using future-ready technologies, secure transformation practices, and a suite of code refactoring services.
Step 4
Testing & Quality Assurance
Our robust testing ensures the upgraded system functions as intended, integrates with new platforms, and achieves the necessary security and compliance requirements after our legacy system modernisation services.
Step 5
Deployment & Go-Live
By integrating DevOps practices into our modernisation pipeline, we ensure faster deployments, continuous testing, and reliable rollouts across every stage of your software transformation.
Step 6
Post Modernisation Support
Our services don’t end once the systems go live. Ongoing support and performance monitoring are the best ways to ensure that the legacy system modernisation continues to provide continual value and business agility.
Frequently Asked Questions
How do I know if my software needs modernisation?
If your system is costly to maintain, slow, or does not support modern technologies, then it might be the right time to consult a legacy system modernisation company. Explore options like legacy software modernisation services or full-fledged software transformation solutions.
Will I lose my existing data during modernisation?
No. Our standard legacy software modernisation services include secure data migration processes that will migrate your data, ensuring that the data is kept safe and migrated without data loss or downtime.
What guarantees the modernised system will be worth the investment?
Our application modernisation services improve system performance, lower long-term costs, and provide upgrades to modernise your system while future-proofing your legacy systems in terms of measurable ROI and business value.
Is it better to rebuild or upgrade my existing system?
It depends on your system’s condition and goals. We evaluate whether refactoring or a complete rebuild offers the best return on investment with the least disruption.
How long does the modernisation project take?
Timelines vary depending on the project. For the majority of legacy software modernisation services, anticipate between 8 and 20 weeks, depending on the system size, complexity, and migration factors.
What is the difference between upgrade and modernisation?
An upgrade means replacement of certain things, but legacy application modernisation services mean you’re modernising your whole system. They are holistic changes that give a better return on investment because you’re getting the components properly aligned for security, scalability, and usability for the future.
