Modernise Your Platform on AWS
Improve the architecture supporting your application
Architecture and hands-on AWS engineering for SaaS, AI, data and digital platforms
Habitat3 helps organisations modernise established applications and AWS environments that have become difficult to scale, change, secure or operate.
We work with CTOs and engineering teams to assess the existing platform, identify the constraints holding it back and implement practical improvements across architecture, infrastructure, software delivery and Cloud Operations.
Modernisation does not necessarily mean rebuilding everything. It means making deliberate changes that improve the platform while preserving the application components that continue to provide value.
Your application may be working—but is the platform ready for what comes next?
Many digital platforms evolve gradually.
New features are added, infrastructure is changed under pressure and short-term technical decisions become permanent. Over time, the platform can become harder to deploy, increasingly expensive to operate and more dependent on the knowledge of individual team members.
Common signs that a platform may need modernisation include:
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releases are manual, slow or unreliable
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infrastructure is difficult to reproduce
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scaling requires manual intervention
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development and production environments have drifted apart
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the database or application architecture has become a bottleneck
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monitoring provides limited operational visibility
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AWS costs are increasing without a clear explanation
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security and governance controls are inconsistent
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ageing operating systems or software components are creating risk
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the architecture is making new features or market expansion difficult
Habitat3 helps you determine which parts of the platform should be retained, improved, replaced or redesigned.
What platform modernisation can achieve
Improve scalability
Adjust the platform so applications and infrastructure can respond more effectively to changing customer demand.
Strengthen security
Improve access controls, network design, logging, threat detection and governance across the AWS environment.
Increase reliability
Reduce single points of failure and strengthen availability, backup, recovery and operational resilience.
Reduce operational complexity
Replace fragile manual processes with documented, repeatable and supportable engineering practices.
Accelerate software delivery
Introduce more consistent development environments, Infrastructure as Code and automated deployment processes.
Improve cost efficiency
Align AWS services and resource sizing with the actual requirements of the application.
A practical approach to modernisation
Modernisation should be driven by business and technical priorities—not by a desire to adopt every available AWS service.
A platform may benefit from containerisation, database modernisation or a serverless design. In other cases, improving the existing compute architecture, deployment process or monitoring may deliver greater value with less disruption.
Habitat3 works with your team to understand:
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how the application currently operates
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which technical constraints are affecting the business
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what the product roadmap requires
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where operational risk is concentrated
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what the internal team can reasonably maintain
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which changes will provide the greatest practical benefit
We then develop a staged modernisation roadmap that balances improvement, cost, delivery risk and business continuity.
Habitat3’s platform-modernisation process
Assess → Prioritise → Design → Modernise → Automate → Operate → Improve
Assess
We review the current application architecture, AWS environment, deployment processes, security posture, operational practices and cloud costs.
Prioritise
We identify the constraints creating the greatest risk, cost or friction and agree on the most valuable areas to address first.
Design
We create a target architecture and practical roadmap aligned with the application, business objectives and internal engineering capability.
Modernise
Habitat3 engineers implement the agreed improvements across infrastructure, data services, security, resilience and application delivery.
Automate
We introduce Infrastructure as Code, deployment automation and repeatable environment-management practices where appropriate.
Operate
The modernised platform is supported with monitoring, documentation, backup, security visibility and an appropriate Cloud Operations model.
Improve
The AWS environment can continue to evolve as application requirements, customer demand and business priorities change.
Platform modernisation solutions
Modernise the AWS architecture
Align the platform with current application requirements
An architecture that was appropriate when the application launched may no longer suit its current scale, customer requirements or product roadmap.
Habitat3 reviews the relationships between the application, infrastructure, data and operational processes before recommending architectural changes.
This may involve:
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separating application components
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removing single points of failure
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improving network design
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introducing autoscaling
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strengthening resilience across Availability Zones
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redesigning storage or database services
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improving application and service integration
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reducing unnecessary infrastructure complexity
The outcome is documented through a clear AWS architecture that provides a practical reference for implementation and future decision-making.
Modernise infrastructure with code
Replace manual configuration with repeatable AWS environments
Infrastructure that exists only as manually configured AWS resources is difficult to reproduce, review and maintain.
Habitat3 uses Terraform and Infrastructure as Code to translate agreed architecture into version-controlled configuration. This enables AWS environments to be deployed and changed more consistently. The same design-and-code approach is already central to Habitat3’s architecture and new-platform services.
Infrastructure as Code can help your team:
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reduce configuration drift
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peer-review infrastructure changes
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reproduce test and production environments
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improve technical documentation
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recover or rebuild infrastructure more confidently
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reduce dependence on individual administrators
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support expansion into additional environments or regions
Modernise application hosting
Use AWS services that better match the workload
Some platforms remain tied to large, manually managed servers even when their applications would benefit from more flexible hosting models.
Depending on the application, Habitat3 may help move workloads toward:
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better-structured Amazon EC2 environments
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containerised applications using Amazon ECS
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serverless components
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managed databases
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scalable storage
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content-delivery services
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managed load balancing
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automated environment provisioning
The goal is not to remove servers at any cost. It is to select an operating model that improves scalability, maintainability and reliability without creating unnecessary complexity.
Containerise suitable application components
Improve deployment consistency and workload portability
Containerisation can package an application and its dependencies into a consistent deployment unit.
For suitable workloads, this can reduce differences between environments and make application releases, scaling and infrastructure management more predictable.
Habitat3 can help assess whether containerisation is appropriate, prepare the supporting AWS architecture and introduce services such as Amazon ECS and AWS Fargate.
A containerisation engagement may include:
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workload suitability assessment
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Docker and image-management guidance
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container registry configuration
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ECS or Fargate architecture
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networking and security controls
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CI/CD integration
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monitoring and logging
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scaling and availability configuration
Containerisation is recommended where it solves a genuine delivery or operational problem—not simply because it is a modern technology.
Modernise databases and data services
Address performance, scalability and support constraints
The database is often one of the most sensitive components of an established platform.
Legacy database versions, oversized servers, manual maintenance and tightly coupled application dependencies can restrict modernisation.
Habitat3 can help assess opportunities to:
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move self-managed databases to managed AWS services
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upgrade ageing database engines
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improve high availability and backup
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separate database workloads
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redesign storage and retention
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introduce read replicas or caching
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improve performance visibility
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migrate to a more suitable database engine where justified
Database modernisation requires careful assessment, testing and rollback planning. It may therefore be delivered as a staged initiative rather than part of a single large platform change.
Modernise software delivery
Make releases more repeatable and less dependent on manual intervention
Infrastructure modernisation delivers limited value when application releases remain fragile or inconsistent.
Habitat3 helps engineering teams improve the connection between source code, testing, deployment and AWS infrastructure.
This may include:
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CI/CD pipeline design
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automated builds and testing
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deployment approvals
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Infrastructure as Code integration
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consistent environment configuration
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release visibility
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rollback processes
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secrets and parameter management
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deployment documentation
Improved delivery processes can help developers release changes more confidently while reducing operational pressure around production deployments.
Modernise monitoring and operations
Improve visibility into how the platform behaves
A modern platform should provide enough operational visibility to identify risks and investigate issues before they become prolonged customer-facing incidents.
Habitat3 can improve monitoring across infrastructure, applications, databases, deployments, backups, costs and security findings.
This may include:
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Amazon CloudWatch configuration
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centralised logging
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application and infrastructure metrics
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dashboards
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actionable alerting
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deployment monitoring
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backup oversight
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cost anomaly detection
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operational documentation
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incident and escalation processes
After implementation, Habitat3 Cloud Operations can provide ongoing AWS engineering and operational oversight.
Modernise security and governance
Strengthen the foundation around a growing platform
Security controls that were sufficient during an application’s early stages may not meet the requirements of larger customers, new markets or a growing engineering team.
Habitat3 can help improve:
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AWS account structures
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identity and access management
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least-privilege permissions
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multi-factor authentication
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network segmentation
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encryption
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secrets management
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centralised logging
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threat detection
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security findings management
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backup and recovery controls
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governance guardrails
Where the existing AWS foundation is no longer suitable, we can introduce or improve an AWS Landing Zone as part of the modernisation program. Habitat3 positions secure foundations as the starting point for its migration, modernisation and Cloud Operations engagements.
Modernisation does not have to happen all at once
A complete platform rewrite can create significant technical, financial and business risk.
For many established applications, a staged approach provides a better outcome.
For example, the first stage may establish stronger security, monitoring and Infrastructure as Code around the existing application. Later stages may modernise the database, introduce containers or redesign individual application components.
This approach allows the organisation to:
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address urgent risks first
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preserve business continuity
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test new architecture incrementally
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spread investment across manageable stages
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generate value before the complete roadmap is delivered
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adjust priorities as more is learned about the platform
Habitat3 can help define the target state while creating a delivery sequence that reflects the organisation’s immediate priorities and capacity for change.
Rehost, replatform or refactor?
Rehost
Move the existing workload with minimal architectural change.
This can be appropriate when speed or infrastructure end-of-life is the immediate priority. It should generally be treated as a starting point rather than the end of the modernisation journey.
Replatform
Move the application onto improved infrastructure or managed AWS services without fundamentally rewriting it.
This may provide stronger scalability, resilience or maintainability with less effort than a full refactor.
Refactor
Change parts of the application so it can take greater advantage of cloud-native architecture and AWS services.
Refactoring can provide significant long-term benefits but normally requires deeper application involvement, testing and development effort.
Habitat3 helps determine which approach is appropriate for each part of the platform rather than applying one strategy to every workload.
Common platform-modernisation scenarios
“Our application works, but it is becoming difficult to scale”
We assess where performance and scaling constraints exist and recommend targeted architecture changes.
“Our infrastructure was built manually”
Habitat3 can document the current environment and progressively convert suitable infrastructure into Terraform.
“Deployments are risky and depend on a few people”
We improve CI/CD, environment consistency and deployment automation to create a more repeatable release process.
“Our AWS environment has grown without a clear architecture”
We review the existing platform and establish a target architecture and staged improvement roadmap.
“We are running ageing operating systems or database versions”
Habitat3 can help plan upgrades, migrations or adoption of supported managed AWS services.
“Our platform lacks visibility”
We establish monitoring, logging and actionable alerting across infrastructure and relevant application components.
“AWS costs are increasing as we grow”
We assess resource usage and architecture to identify improvements without compromising customer experience or reliability.
“Larger customers are asking more security questions”
We strengthen identity, logging, governance, backup and security controls to improve technical assurance.
Who platform modernisation is for
Habitat3’s platform-modernisation services are particularly suited to:
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established SaaS businesses
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web and mobile application providers
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ecommerce platforms
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AI and data businesses
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software companies that have outgrown their initial infrastructure
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organisations that have completed a lift-and-shift migration
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teams dealing with ageing application infrastructure
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engineering teams with heavily manual deployment processes
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businesses preparing for enterprise customers or expansion
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organisations needing AWS expertise to complement their developers
We work directly with CTOs, founders, technical managers, engineering leaders and application-development teams.
Business outcomes
Greater scalability
Infrastructure better aligned with changing application and customer demand.
More reliable releases
Repeatable environments and more consistent software-deployment processes.
Stronger resilience
Improved availability, backup, recovery and operational readiness.
Better security
More consistent access controls, logging, monitoring and governance.
Reduced technical risk
Fewer manual dependencies and a clearer understanding of the platform.
Improved cost control
AWS services and resources aligned more closely with actual workload requirements.
Greater developer productivity
Less time spent working around fragile infrastructure and manual deployment processes.
A clearer growth path
Architecture capable of supporting new features, customers, regions and business requirements.
How Habitat3 works with your development team
Habitat3 focuses on AWS infrastructure, architecture, automation and Cloud Operations.
We collaborate with your application developers to understand how the software is built, deployed and operated, and to coordinate any infrastructure changes that affect the application.
A typical division of responsibility may include:
Habitat3
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AWS architecture
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infrastructure design and implementation
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Terraform and Infrastructure as Code
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AWS security and governance
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CI/CD infrastructure and integration
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monitoring and operational controls
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AWS cost optimisation
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Cloud Operations
Your development team
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application code
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application-level testing
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code changes required for modernisation
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feature development
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application-specific configuration
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validation of application behaviour
Where application refactoring is required, Habitat3 can work alongside your internal developers or nominated application-development partner.
Our experience delivers results
OrderArt
A more modern, secure and scalable AWS platform
Habitat3 worked with OrderArt to re-architect its AWS environment and establish a more modern, secure and scalable cloud platform designed to support future growth.
The engagement demonstrates how an established application can be improved through deliberate changes to its AWS architecture rather than treating the existing environment as fixed.
Why Habitat3?
Habitat3 works with digital businesses to design, automate, secure and operate AWS environments that support the requirements of their applications. Its broader AWS consulting work spans architecture, migration, platform engineering, security, reliability, cost management and ongoing Cloud Operations.
Our approach combines:
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AWS architecture advice
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hands-on engineering and implementation
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Terraform and Infrastructure as Code
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DevOps and deployment automation
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security and Landing Zone expertise
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cost optimisation
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ongoing Cloud Operations
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close collaboration with internal engineering teams
We focus on creating platforms that are not only well designed, but also repeatable and practical to operate.
Frequently asked questions
What is platform modernisation?
Platform modernisation is the process of improving the infrastructure, architecture, deployment practices and operational model supporting an existing application.
It may involve Infrastructure as Code, containerisation, managed databases, CI/CD automation, stronger security, improved monitoring or changes to the application architecture.
Is platform modernisation the same as rewriting an application?
No. A full rewrite is only one possible approach and is often unnecessary.
Modernisation may involve improving selected parts of the platform while retaining application components that continue to work effectively.
Can Habitat3 modernise an application that is already running on AWS?
Yes. Habitat3 can assess an existing AWS environment and identify improvements across architecture, scalability, security, automation, resilience, observability and cost.
The resulting work can be delivered as one project or through a staged modernisation roadmap.
Can Habitat3 modernise an application while migrating it to AWS?
Yes. Migration can create an opportunity to replatform or modernise suitable components.
However, where migration speed and business continuity are the main priorities, it may be better to migrate first and modernise selected areas after the application is stable on AWS.
Does platform modernisation require application-code changes?
Not always.
Some improvements—such as Infrastructure as Code, monitoring, network redesign, backup, security controls or resource right-sizing—may require little or no application change.
Containerisation, database changes or architectural refactoring may require development work and application testing.
Can Habitat3 convert our existing AWS infrastructure to Terraform?
Yes. Habitat3 can assess manually configured AWS infrastructure and develop a practical approach to bringing suitable resources under Terraform management.
This should be carefully planned to avoid disrupting production resources.
Can Habitat3 help us containerise our application?
Yes. Habitat3 can assess whether containerisation is appropriate and design the AWS infrastructure required to support the containerised application.
Where code or Dockerfile changes are required, we work alongside the customer’s development team.
Can Habitat3 help modernise our database?
Yes. Habitat3 can assess the current database architecture and help plan upgrades, migrations to managed AWS services, availability improvements or changes to the database engine.
Database modernisation is normally supported by detailed testing, data-migration planning and rollback procedures.
Can Habitat3 improve our deployment process?
Yes. Habitat3 helps organisations improve CI/CD pipelines, Infrastructure as Code, environment consistency, deployment automation and release visibility.
Related service: AWS DevOps Consulting
Can Habitat3 improve the security of an established AWS platform?
Yes. Habitat3 can assess and strengthen identity, access controls, logging, network security, threat detection, backups and AWS governance.
Where appropriate, we can also introduce or improve an AWS Landing Zone.
How do you decide what to modernise first?
We assess the platform against business priorities, operational risk, technical constraints and delivery effort.
The modernisation roadmap then prioritises improvements that provide the greatest value or address the most significant risks.
Does Habitat3 provide support after modernisation?
Yes. Habitat3 Cloud Operations can provide ongoing monitoring, infrastructure support, security visibility, cost management and continuous platform improvement after the project is complete.
Prepare your AWS platform for its next stage of growth
Speak directly with an Australian AWS specialist about your modernisation priorities
Your application may not need to be completely rebuilt—but the platform supporting it may need to evolve.
Talk to Habitat3 about improving the architecture, automation, security, reliability and operational maturity of your AWS environment.