Modernise and Migrate Legacy Systems Without Breaking What Australian Customers Rely On
Software modernisation is upgrading or replacing an ageing system so it is maintainable, secure, and able to grow, without a risky full rewrite. MicroPyramid is a 12-year-old senior-led engineering team that audits, modernises, migrates, and rescues legacy systems for Australian startups and SMBs. We work in phases, module by module behind the running product.
Why Australian Teams Trust Us With a Migration
Four reasons Australian founders and product teams choose MicroPyramid to modernise and migrate critical systems
Migration Standups in Step With AEST
AEST runs roughly 4-5 hours ahead of IST, giving a solid afternoon overlap. During a migration that means live standups, same-day cutover decisions, and pull-request reviews plus end-of-day handoffs timed for your morning, not surprises you discover the next day.
Privacy Act & APPs-Aware Migration
Data migration is where compliance risk is highest. We move data with the Privacy Act 1988 and the Australian Privacy Principles in mind (regulator: the OAIC), and AWS ap-southeast-2 (Sydney) is available so Australian customer data stays resident in Australia throughout.
AUD Billing via Stripe
Invoices in Australian dollars, collected via Stripe, with GST-compliant invoicing available on request. No currency-conversion overhead, no wire-transfer friction: billing that fits how Australian businesses actually run a migration budget.
De-Risked, Senior-Owned Delivery
Migrations fail when they are handed to juniors and run as big-bang rewrites. Senior engineers own every cutover, phase, and rollback plan directly. The person scoping your audit is the person running your migration.
Modernisation & Migration Services for Australian Teams
Six services covering the full range of legacy challenges: from audit and framework upgrades to data and cloud migration
Legacy System Audit
A written assessment of your ageing PHP, Django, .NET, or monolithic system: architecture, dependency and support risk, security exposure, and a prioritised roadmap. Australian teams get a clear picture before committing budget to any rebuild.
- Architecture and structure review
- Dependency and end-of-life risk
- Migration options and trade-offs
Framework & Version Upgrades
Safely upgrade ageing Django, Python, or .NET systems off unsupported versions while improving maintainability, performance, and security, without breaking what Australian customers already rely on.
- Django and Python version upgrades
- Dependency cleanup and patching
- Performance bottleneck removal
Product Rescue & Recovery
When a codebase is unstable, undocumented, or inherited from a previous agency, we stabilise production first and create a safe path forward, the situation many Australian SMBs find themselves in after a contractor leaves.
- Production triage
- Technical debt mapping
- Handover recovery
Re-Platforming & Phased Migration
Design migrations that reduce risk and preserve business continuity through module-by-module replacement. No big-bang rewrites: incremental cutover that keeps Australian operations running throughout.
- Phased migration planning
- Module-by-module replacement
- Staged cutover with rollback
Data Migration & Residency
Move off ageing databases with structured, low-risk plans and integrity validation. Migrations are designed with the Privacy Act 1988 and the Australian Privacy Principles in mind, with AWS ap-southeast-2 (Sydney) available for Australian data residency.
- Oracle / MySQL to PostgreSQL
- Data integrity validation
- Australian data-residency handling
Cloud Migration to AWS Sydney
Migrate on-premise or legacy-hosted systems to AWS ap-southeast-2 (Sydney): containerised, observable, and right-sized. Reduce operational risk while keeping Australian customer data within Australian borders.
- Lift-and-shift or re-architecture
- Containerisation with Docker
- ap-southeast-2 (Sydney) deployment
Choose the Right Path
These four paths keep the lane clear. The goal is to pick the smallest change that meaningfully improves the system for your Australian users.
Modernise
Keep the core product, upgrade risky layers, and improve maintainability when the business logic still makes sense for your Australian customers.
Use this path when: Best when the product still works for the business but the codebase is slowing delivery.
Migrate
Move off an ageing framework, vendor, database, or hosting platform in stages while protecting continuity for Australian users and operators.
Use this path when: Best when you need a safer transition plan (including cloud migration to AWS Sydney), not a dramatic rewrite.
Rescue
Stabilise an inherited or failing system first, then decide what should be cleaned up, migrated, or replaced.
Use this path when: Best when the current state is fragile, undocumented, or already causing production pain.
Rebuild
Replace the system only when the current architecture is beyond saving and the business case is genuinely clear.
Use this path when: Best when repair costs and product constraints clearly outweigh a staged replacement.
Australian Teams We Work Best With
If any of these situations match where your Australian system is right now, we should talk
Australian Products That Cannot Evolve
Your product still works, but every change is painful. Delivery is slow, technical debt is high, and nobody on your Australian team trusts the codebase enough to touch it.
SMBs on Unsupported Systems
Running on outdated Django, end-of-life .NET, or ageing PHP that creates ongoing security and compliance risk, and makes Privacy Act and APP obligations harder to meet.
Teams Inheriting Messy Codebases
A previous agency or contractor left a fragile system behind. You need stabilisation and a clear handover before your Australian team can grow the product again.
Founders Needing a Safer Path
You know the current system has to change, but a full rewrite sounds risky, expensive, and operationally dangerous for a live Australian customer base. You want a de-risked alternative.
Australian Teams Blocked From Adding AI
You want AI search, copilots, or workflow automation, but the current architecture and data model are not ready for it. Modernisation has to come first.
Businesses Facing Migration Deadlines
A hosting provider is sunsetting, a framework hit end-of-life, or a vendor contract is ending. You need a migration owned by senior engineers working in step with your Australian timezone.
Best Fit For
- Australian fintech, healthtech, govtech, and resources-tech teams stuck on ageing PHP, legacy Django, .NET, or monoliths
- SMBs whose data migration has to respect the Privacy Act 1988, the Australian Privacy Principles, and OAIC expectations
- teams that need AWS ap-southeast-2 (Sydney) data residency as part of a cloud migration
- founders who want incremental, de-risked migration with senior ownership, not a speculative rewrite
Not the Right Fit When
- greenfield product builds with no existing system to modernise or migrate
- engagements wanting a big-bang rewrite with no audit, sequencing, or rollback plan
- staff augmentation without delivery ownership of the migration itself
- teams treating AI as a slogan rather than a capability the modernised system should enable
If you are starting a fresh product rather than migrating an old one, see Product Engineering for Australian Teams.
Public proof for Australian teams: Refactored.ai shows complex re-platforming carried out without disrupting live users, and Bough Digital is an agency platform we have modernised and kept stable through change.
How an Australian Modernisation Engagement Starts
Every engagement starts with an audit, so you know exactly what you are dealing with before committing to any changes
Audit the Current System
We assess architecture, dependencies, risks, bottlenecks, and Australian compliance constraints, delivered as a written report.
Define the Right Path
Not every system needs a rewrite. We recommend the smallest viable path that meaningfully improves the situation.
Stabilise Before Big Changes
If the product is fragile, we reduce immediate risk before pushing major migrations or architectural changes.
Migrate in Phases
We prefer phased migration over big-bang rewrites, preserving business continuity and data integrity throughout.
Stack Used for Australian Modernisation & Migration
Deep expertise across the systems we most commonly modernise and migrate, with AWS ap-southeast-2 (Sydney) for Australian data residency
Frameworks
Data & Storage
DevOps & Cloud
How to Get Started as an Australian Team
We recommend starting with a Legacy System Audit: you get a complete picture before committing to any fixes or migrations. All engagements billed in AUD via Stripe.
Legacy System Audit Sprint
Get a clear picture of system risks, bottlenecks, and realistic migration options before committing to any large changes. Priced in AUD.
- Architecture and risk review
- Dependency and support audit
- Migration options and trade-offs
- Written report + roadmap
Modernisation Sprint
Upgrade and stabilise an ageing Django, Python, or .NET system with a concrete improvement plan and measurable outcomes.
- Version upgrades and dependency cleanup
- Performance and security improvements
- Clear deliverables and timeline
Migration Roadmap Sprint
Design a phased migration path for re-platforming or cloud migration to AWS Sydney safely, with sequencing and data-residency planning.
- Phased migration design
- Australian data-residency and continuity planning
- Rollout and rollback sequencing
Modernised Products and Selected Work
Products we have rescued, modernised, and migrated to healthier foundations, including Refactored.ai and Bough Digital.
Refactored
Interactive Python learning platform evolved and re-platformed onto healthier foundations, complex modernisation at scale.
Read case study
Bough Digital
Digital agency platform: campaign management, dashboards, and analytics modernised and maintained for a demanding international agency client.
See portfolio
PRO Music Tutor
Premium online music learning platform migrated and maintained as a stable, scalable full-stack SaaS product.
See portfolio
CREDITABLE
Employee financial wellness platform: fintech-adjacent product modernised for reliability and ongoing feature delivery.
See more workFrequently Asked Questions
Straight answers to what Australian founders and CTOs ask us before starting a modernisation or migration engagement.
What is software modernisation?
Software modernisation is upgrading or replacing an ageing system so it becomes maintainable, secure, and able to grow with the business, without rewriting everything at once. In practice it means upgrading frameworks and dependencies, removing technical debt, fixing performance and security issues, and migrating off unsupported platforms or databases, usually in phases so the product keeps running throughout. Migration is the related step of moving a system off an ageing framework, database, hosting platform, or on-premise server onto a modern, supported one.
Should we rewrite our system from scratch, or modernise it in phases?
In most cases, modernise in phases. A full rewrite is the riskiest option and the one we recommend least. Big-bang rewrites routinely run far over schedule, freeze feature delivery for months or years, and carry a high failure rate, because you are rebuilding a moving target while the business still depends on the old system. We prefer to upgrade or replace the system module by module behind the running product (the strangler approach), so you get value early, keep Australian customers served, and can stop or adjust at any phase. A from-scratch rebuild is reserved for the cases where the current architecture is genuinely beyond saving and the business case is clear.
Do I need to modernise, migrate, rescue, or rebuild?
These are four different paths, and we start every engagement with an audit so the recommendation is the smallest change that actually improves the situation. Modernise when the business logic still works but the codebase is slowing delivery: you upgrade the risky layers and keep the core. Migrate when you need to move off an ageing framework, vendor, database, or hosting platform in stages, including a cloud migration to AWS Sydney. Rescue when an inherited or failing system has to be stabilised before any decision can be made. Rebuild only when the architecture is beyond saving and the business case is genuinely clear.
Will modernisation disrupt our live product?
Protecting business continuity is the whole point of working in phases, so a well-run modernisation should feel like steady improvement, not downtime. We stabilise fragile systems before making major changes, migrate module by module behind the running product, validate data integrity at every step, and plan staged cutovers with rollback paths. Your Australian users and operators keep working throughout. Ideally the only thing they notice is that the product gets faster and more reliable.
How long does modernisation or migration take?
It depends on the size and condition of the system, but you see working improvements in weeks rather than waiting months for a single cutover. A Legacy System Audit takes one to two weeks and gives you a written report and roadmap before any commitment. A focused framework or dependency modernisation is typically a few weeks. A phased migration off an old framework, database, or on-premise host runs across several phases scheduled around your release calendar. Because we deliver in phases with AI-assisted engineering, value lands early and continuously, where many Australian agencies quote four to twelve months for a single big-bang cutover.
Where will our data live during and after a migration, and is it Privacy Act and APP compliant?
You can keep Australian customer data resident in Australia: we deploy and migrate into AWS ap-southeast-2 (Sydney) by default, and design data migration with the Privacy Act 1988 and the Australian Privacy Principles in mind (the regulator is the OAIC). Data migration is where compliance risk is highest, so we treat residency, access control, and integrity validation as first-class parts of the plan rather than an afterthought. As Privacy Act reform rolls out through 2026, keeping personal information on Australian-region infrastructure with a clear data-handling trail is the safe default.
What drives the cost of a modernisation or migration project?
Cost is driven by the size and condition of the existing system, not a fixed menu: the main factors are how much technical debt has to be cleared, how complex the data model and integrations are, your compliance and data-residency requirements, and whether we are modernising in place, re-platforming, or migrating to the cloud. We start with a fixed-scope Legacy System Audit that turns those unknowns into a written roadmap, then give you a fixed estimate per phase so you are never committing to an open-ended modernisation. Engagements are billed in AUD via Stripe, with GST-compliant invoicing available on request.
Can you take over an inherited, undocumented, or unstable codebase?
Yes. That is our Product Rescue work, and it is one of the most common reasons Australian SMBs call us. When a previous agency, freelancer, or former internal team has left a fragile system behind, we triage production issues first, map the technical debt, document what actually exists, and create a safe path forward. You keep full ownership of the code and IP, and we hand back a system your team can actually maintain and build on.
Can you migrate us off old PHP, end-of-life .NET, or an unsupported framework or database?
Yes. Moving off ageing or unsupported platforms is core modernisation work. We upgrade legacy Django and Python off unsupported versions, migrate ageing PHP and .NET systems, and move data off old databases (for example Oracle or MySQL to PostgreSQL) with structured, low-risk plans and integrity validation. Every migration is sequenced in phases with rollback paths so the live product keeps serving Australian users while the move happens underneath it.
Can you migrate our on-premise system to the cloud?
Yes. We migrate on-premise and legacy-hosted systems to AWS ap-southeast-2 (Sydney), containerised with Docker, observable, and right-sized. Depending on the system we either lift-and-shift first and modernise afterwards, or re-architect during the move when the old design is the actual problem. Hosting in the Sydney region keeps Australian customer data within Australian borders and usually lowers operational risk and run cost at the same time.
Do you work Australian hours, and who owns the code?
You work with senior engineers whose afternoon overlaps your Australian morning, and you own everything we build. AEST runs roughly four to five hours ahead of IST, which gives a solid overlap for live standups, same-day cutover decisions, and pull-request reviews timed for your morning. The seniors who scope your audit are the ones who run your migration, and all code and IP are yours, committed to your repositories, with a clean handover at the end of every phase.
Start With a Modernisation Audit
If your current system is slowing the business down, the first step is not panic. It is clarity. We can assess what you have, show you the safest path forward, and help you modernise or migrate with less risk, Privacy Act-aware data handling, and AWS Sydney data residency.