--- type: Leaf title: Cloud Solutions description: Cloud engineering and platform solutions to modernise legacy systems and integrate APIs for growing Australian businesses. Book a cloud assessment. resource: https://nationaldigital.com.au/platform-engineering/api-development-and-management/cloud-solutions/ tags: - platform-engineering - cloud engineering and platform services - API development and integration - legacy system modernisation - mid-market digital transformation - cloud engineering - platform engineering - cloud solutions Australia - system integration - api development - application modernisation - devops vs platform engineering - what is cloud engineering - cloud engineering company timestamp: '2026-07-21T09:01:19.931Z' --- # Cloud Solutions Cloud engineering and platform solutions to modernise legacy systems and integrate APIs for growing Australian businesses. Book a cloud assessment. ## What is cloud engineering and how does it help growing Australian businesses? Cloud engineering designs, migrates and operates infrastructure on platforms like AWS, Azure or Google Cloud, replacing on-premises servers with scalable, secure infrastructure that supports growth without proportional headcount increases. It typically pairs infrastructure migration with API integration work so existing tools like Xero, MYOB, HubSpot or Shopify keep working smoothly during and after the move. **Platform engineering and cloud infrastructure for Australian businesses scaling past spreadsheets, single servers and disconnected SaaS tools.** National Digital designs, migrates and integrates cloud infrastructure for Australian businesses moving beyond legacy systems toward platforms that scale with growth. *Indicative projects: $50,000-$200,000 AUD, delivered over 3-6 months with teams of 5-20 specialists.* *Foundations* ## What is cloud engineering? Cloud engineering is the practice of designing, provisioning and operating infrastructure on platforms such as AWS, Microsoft Azure or Google Cloud, replacing ageing on-premises servers with scalable, pay-as-you-go compute, storage and networking. For a business running Xero, MYOB or Shopify alongside internal line-of-business systems, cloud engineering typically means containerising legacy applications, automating deployment pipelines and connecting everything through well-designed interfaces. It sits alongside broader [API development and management](/platform-engineering/api-development-and-management/) work, because most cloud migrations succeed or fail on how cleanly systems talk to each other. ## Platform engineering vs cloud engineering Platform engineering is the broader discipline: building the internal tools, self-service workflows and golden paths that let development teams ship safely without waiting on infrastructure tickets. Cloud engineering is one component of that—the infrastructure layer itself. In practice, teams of 50-200 people rarely separate the two roles; a small platform team handles cloud provisioning, [Professional authentication solutions for Australian businesses](/platform-engineering/api-development-and-management/authentication), and integration work such as [REST API development best practices for Australian api security standards](/platform-engineering/api-development-and-management/rest-api-development) as one connected capability. ## Cloud Engineering for Scaling Operations **Problem:** Many growing Australian businesses run critical operations on ageing on-premises servers or a patchwork of disconnected SaaS tools, creating manual workarounds, security exposure and reporting delays that worsen as headcount and transaction volume increase. - Time wasted: 15-25 hours per week on manual data reconciliation - Cost: $60,000-$120,000 AUD annually in duplicated admin and system downtime - Opportunity cost: Slower decision-making and delayed product or service launches while competitors scale on cloud-native infrastructure. - **Manual data re-entry across systems** — Staff duplicate data entry between Xero, CRM and operational spreadsheets, increasing error rates and admin hours. - **Ageing infrastructure risk** — On-premises servers approaching end-of-support create security and compliance exposure. - **Limited scalability** — Fixed infrastructure can't absorb seasonal or growth-driven transaction spikes without manual intervention. **Solution:** A structured cloud engineering engagement migrates core systems to managed cloud infrastructure, integrates them through well-designed APIs, and automates manual steps currently absorbing operational capacity. 1. **Architecture assessment** _(Weeks 1-3)_: Map current systems, data flows and integration gaps against a cloud target architecture. 2. **Staged migration** _(Weeks 4-10)_: Migrate workloads in prioritised phases, starting with lowest-risk, highest-impact systems. 3. **Integration & automation** _(Weeks 11-16)_: Connect migrated systems via APIs and automate manual handoffs between finance, operations and CRM tools. **Expected outcome:** Reduced manual admin, faster reporting cycles and infrastructure that scales with transaction volume without proportional headcount growth. ## Cloud Engineering: What Operations Leaders Need to Know Cloud engineering succeeds when infrastructure migration, API design and organisational readiness are planned together—not treated as separate, sequential projects. - **Cloud engineering replaces fixed infrastructure with scalable, managed services** Moving compute, storage and networking to AWS, Azure or Google Cloud lets operations scale usage up or down with demand instead of over-provisioning hardware. - **Platform engineering and cloud engineering are related but distinct disciplines** Platform engineering builds the internal tooling and workflows developers use daily; cloud engineering delivers the underlying infrastructure those workflows run on. - **Legacy system modernisation rarely requires a full rebuild** Wrapping legacy logic in modern APIs and migrating the data layer incrementally reduces risk compared with a single, high-stakes cutover. - **API design decisions determine how well cloud migrations age** Poor API versioning and authentication choices made early in a migration create integration debt that becomes expensive to unwind later. ## Cloud Engineering: In-House, Partner or Stay As-Is? Businesses weighing cloud engineering investment typically choose between building an internal team, engaging a specialist delivery partner, or delaying migration—each with different cost, speed and risk trade-offs. - **Build an in-house cloud team** — Hiring dedicated cloud and platform engineers gives full-time internal capability and institutional knowledge, but requires sustained investment in specialist salaries that are scarce and expensive in the current Australian market. - **Engage a cloud engineering delivery partner** — A specialist partner delivers migration, integration and API work as a defined project, bringing pattern-matched experience from similar engagements without the overhead of permanent hires. - **Delay migration and patch legacy systems** — Continuing to maintain existing on-premises or ageing systems defers upfront cost but typically increases technical debt, security exposure and integration complexity over time. ## Cloud Adoption and Risk Data for Australian Businesses The following figures from Australian Government sources illustrate the scale of cloud adoption and the security stakes involved in platform engineering decisions. - **Cloud computing adoption: Approx. 51%** — The ABS Characteristics of Australian Business survey found roughly half of Australian businesses purchased cloud computing services in 2021-22, with adoption highest among mid-sized firms. _(Source: https://www.abs.gov.au/statistics/industry/technology-and-innovation/characteristics-australian-business/latest-release)_ - **Notifiable data breaches: 483 notifications** — The OAIC recorded 483 data breach notifications in the July-December 2023 reporting period, with malicious or criminal attacks the leading source—reinforcing why cloud security architecture matters. _(Source: https://www.oaic.gov.au/privacy/notifiable-data-breaches/notifiable-data-breaches-statistics)_ - **Digital economy strategy target: $167 billion** — The Australian Government's digital economy strategy estimated the digital economy could contribute significantly to GDP, with cloud and platform capability cited as a core enabler for business growth. _(Source: https://www.dta.gov.au/about-us/who-we-are/our-strategy)_ **Methodology:** Figures are drawn from published Australian Government statistical releases and regulator reports; some values are approximate pending each source's most recent update cycle. ## Readiness Checklist for Cloud Engineering Projects Before starting a cloud engineering or legacy modernisation project, businesses typically need clarity on current architecture, stakeholder alignment and data governance obligations. ### Technical readiness - **Documented current-state architecture** _(must have)_: An inventory of existing systems, integrations and data flows so the migration team can scope risk and dependencies accurately. - **Identified system of record for core data** _(must have)_: Clarity on which system holds the authoritative version of customer, financial or operational data before integration begins. ### Organisational readiness - **Executive sponsor assigned** _(should have)_: A senior stakeholder empowered to make scope and budget decisions keeps migration projects moving without repeated escalation delays. - **Change management plan for affected teams** _(should have)_: Staff using migrated systems need training and communication plans so adoption doesn't stall after go-live. - **Defined success metrics** _(should have)_: Agreed measures such as reporting speed or reduced manual handling time make it possible to evaluate the project objectively. ### Data & compliance readiness - **Data residency and privacy obligations mapped** _(nice to have)_: Understanding Australian Privacy Principles obligations and any sector-specific requirements before selecting cloud regions and providers. - **Existing security incident history reviewed** _(nice to have)_: A review of past breaches or near-misses helps prioritise which systems need security hardening first during migration. **Estimated preparation time:** 2-4 weeks ## Typical Cloud Engineering Project Timeline A typical cloud engineering and legacy modernisation project for a business of 50-200 employees runs across four phases, from architecture discovery through to optimisation after go-live. ### Discovery & architecture (3-4 weeks) Audit current systems, map integration points and design target cloud architecture aligned to business priorities. - Current-state architecture map and dependency register - Target cloud architecture and migration sequencing plan ### Migration & integration build (6-8 weeks) Migrate prioritised workloads to cloud infrastructure and build the API layer connecting new and legacy systems. - Migrated core workloads running in staging environment - API integration layer connecting cloud and legacy systems ### Testing & security hardening (2-3 weeks) Validate functionality, performance and security controls before production cutover, including load and penetration testing. - Test results and remediation log - Security hardening report against Essential Eight controls ### Go-live & optimisation (2-3 weeks) Cut over to production, monitor performance closely, and tune infrastructure costs and configurations based on real usage. - Production go-live with monitoring dashboards - Cost and performance optimisation recommendations **Total duration:** 13-18 weeks ## Indicative Cloud Engineering Project Costs Indicative cost range for a cloud migration and integration project covering architecture, migration, API development and security hardening for a business of 50-200 employees. ### Discovery & architecture Assessment of current systems and design of the target cloud architecture and migration plan. - **Architecture assessment & roadmap** — AUD 8,000–AUD 15,000: Covers stakeholder workshops, system audits and production of a detailed migration roadmap document. - **Security & compliance review** — AUD 4,000–AUD 8,000: Baseline review against Australian Privacy Principles and Essential Eight controls before migration begins. ### Migration & integration Core technical delivery: moving workloads to cloud infrastructure and building the API integration layer. - **Cloud infrastructure migration** — AUD 25,000–AUD 70,000: Scope depends on the number of systems, data volume and complexity of legacy dependencies being migrated. - **API development & integration layer** — AUD 15,000–AUD 45,000: Custom API build connecting migrated cloud systems with remaining legacy or third-party tools such as Xero or HubSpot. ### Testing, hardening & go-live Validation, security testing and production cutover support. - **Performance & security testing** — AUD 6,000–AUD 14,000: Load testing and penetration testing to confirm the new environment performs and holds up under real usage. - **Go-live support & optimisation** — AUD 5,000–AUD 12,000: Hands-on monitoring and configuration tuning during the first weeks of production operation. **Total:** AUD 63,000–AUD 164,000 **Payment terms:** Indicative only; typically structured as milestone-based payments tied to phase completion, confirmed in a fixed-scope proposal following discovery. **ROI (12 months):** Expected reduction in manual admin hours and infrastructure costs typically becomes measurable within the first 12 months of operation, though actual results vary by starting baseline. *Modernisation* ## When to modernise legacy systems Most growing Australian businesses reach a modernisation trigger point: finance runs on Xero or MYOB, sales runs on HubSpot or Shopify, but the core operational system—an ageing on-premises database, a bespoke intranet, or a patchwork of spreadsheets—can't keep pace. Signs it's time to modernise include manual data re-entry between systems, nightly batch jobs that delay reporting, security patches that no longer ship for the underlying platform, or a vendor sunsetting support. Application modernisation doesn't always mean a full rebuild; it often means wrapping legacy logic in modern interfaces, migrating the data layer to managed cloud services, and exposing core functions through APIs that new tools can consume safely. ## A practical application modernisation approach A structured approach typically starts with an architecture audit to map dependencies, followed by staged migration rather than a single cutover—reducing risk for teams that can't tolerate extended downtime. Well-governed API layers, including [Professional graphql implementation solutions for Australian businesses](/platform-engineering/api-development-and-management/graphql-implementation) where flexible data queries matter, let new cloud services talk to legacy systems during transition. Version control matters here too: [How to implement api versioning for Australian api security standards](/platform-engineering/api-development-and-management/api-versioning) keeps existing integrations stable while new capability rolls out gradually, rather than forcing every connected system to upgrade simultaneously. ## Cloud Solutions and Platform Engineering FAQs Common questions from operations and IT leaders evaluating cloud engineering and legacy modernisation projects. ### What is cloud engineering? Cloud engineering is the discipline of designing, building and operating infrastructure on platforms such as AWS, Microsoft Azure or Google Cloud. It covers provisioning compute and storage, automating deployment pipelines, and connecting systems through APIs—replacing fixed on-premises servers with infrastructure that scales with business demand rather than requiring upfront hardware investment. ### Is cloud engineering hard to learn or hard to hire for? Cloud engineering has a steep learning curve because it spans networking, security, automation and multiple provider ecosystems. Specialist talent is genuinely scarce in Australia, which is why many businesses in the $10-100 million revenue range engage a delivery partner for a defined project rather than building a permanent in-house team from scratch immediately. ### Devops vs platform engineering vs cloud engineering: what's the difference? DevOps is a set of practices for faster, safer software delivery. Platform engineering builds the internal tools and self-service workflows that make those practices scalable across teams. Cloud engineering focuses specifically on the underlying infrastructure—compute, storage, networking—that platform and DevOps work runs on top of daily. ### What is application modernisation and when do we need it? Application modernisation updates ageing software—wrapping legacy logic in modern interfaces, migrating data to managed cloud services, or exposing functions through APIs—without necessarily rebuilding from scratch. It's typically needed when manual workarounds, vendor support gaps or integration limits start slowing operations down measurably each quarter. ### How does API development fit into a cloud engineering project? APIs are the connective layer between cloud infrastructure and existing business systems such as Xero, MYOB, HubSpot or Shopify. Well-designed, versioned APIs let new cloud services exchange data with legacy systems safely during migration, and they remain the integration backbone once migration is complete, reducing the risk of broken connections later. ### How much does a cloud engineering project typically cost in Australia? Indicative costs for a scoped cloud migration and integration project for a business of 50-200 employees typically range from $60,000 to $165,000 AUD, depending on the number of systems, data volume and integration complexity, delivered over approximately 13-18 weeks with milestone-based payments. ## Related **Parent:** - [API development and management](/okf/platform-engineering/api-development-and-management.md) **Related:** - [REST API development best practices for Australian api security standards](/okf/platform-engineering/api-development-and-management/rest-api-development.md) - [Professional graphql implementation solutions for Australian businesses](/okf/platform-engineering/api-development-and-management/graphql-implementation.md) - [How to implement api versioning for Australian api security standards](/okf/platform-engineering/api-development-and-management/api-versioning.md) - [Professional authentication solutions for Australian businesses](/okf/platform-engineering/api-development-and-management/authentication.md) # Citations - [ABS Characteristics of Australian Business](https://www.abs.gov.au/statistics/industry/technology-and-innovation/characteristics-australian-business/latest-release) — ABS data on cloud computing service adoption among Australian businesses by size and industry. - [OAIC Notifiable Data Breaches Report](https://www.oaic.gov.au/privacy/notifiable-data-breaches/notifiable-data-breaches-statistics) — Regulator data on breach notification trends relevant to cloud infrastructure security decisions.