Service · Consultancy

Platform modernisation.

Replatforming advice for organisations looking to modernise their IT platform or DevOps platform end to end. We guide you through choosing between lift-and-shift, re-platform, re-architect, re-build and re-place, and we don't disappear once the advice is given. Discovery, architecture, roadmap, pilot and knowledge transfer in one engagement.

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Modernising your IT platform, not just migrating it.

Platform modernisation is broader than a platform migration and more specific than a digital transformation programme. It is the overarching consultancy role that addresses architecture, technology, processes and organisation together: not a single application, not just the cloud, but the entire platform your business runs on. Replatforming inevitably changes how teams work, how releases happen and how costs behave.

We are usually approached by CTOs, CIOs and IT directors who know their platform is due for modernisation but can't see a clear path. What do you modernise first? What do you keep? What do you replace with SaaS? Which cloud fits? How do you keep the lights on during the rebuild? How do you bring the internal team along? We answer those questions with a blueprint and a workable roadmap, not a slide deck that ends up in a drawer. Our role is that of replatforming consultancy and a hands-on partner for the first steps, so the advice doesn't remain abstract.

Our approach works both for the broader IT platform and for specific areas such as modernising the DevOps platform, a data platform or a customer platform. We stay involved until the first module is live and the internal team has taken it over. That is what sets platform modernisation at Appfront apart from traditional replatforming advice, where the consultant disappears after delivering the report.

The primary goal of replatforming is almost never the technology itself, but the business outcome it enables: rolling out new products faster, lower operational costs, better data to base decisions on, or simply retiring a platform whose operational lifespan is coming to an end. We start every engagement with the business question and shape the architecture and roadmap around it. That keeps the modernisation tied to something management recognises.

Five replatforming approaches.

When modernising, we choose the approach that fits each module. A single approach is rarely right for the whole platform; a healthy target state often mixes two or three.

Approach 01

Lift-and-shift

Moving on-premises workloads to the cloud one-to-one, without significant refactoring. Fast and relatively low risk, but you capture little of the cloud's benefit. Good as a first step under time pressure, provided it is followed by re-platforming module by module.

Approach 02

Re-platform

Adapting to a new stack or managed service without changing functionality. For example, replacing a self-managed database with managed Postgres, or a queue with managed messaging. Moderate effort, with a clear payoff in operations and reliability.

Approach 03

Re-architect

Thorough redesign towards microservices, event-driven or cloud-native patterns. Highest effort, highest payoff in scalability, cost and agility. Only sensible once domain boundaries are clear and the team can handle the complexity.

Approach 04

Re-build

Rebuild the module while keeping data and domain rules intact. This makes sense when the existing codebase is past its useful life and the knowledge behind it has been lost. It is the most expensive route, but sometimes the only honest answer to a legacy system that has stalled.

Approach 05

Re-place

Replace it with a SaaS product. Sometimes that is the best choice: why build a CRM when HubSpot or Salesforce covers 90% of what you need? We are not afraid to give that advice. Our role is to recommend what fits, not what generates the most work.

Three types of replatforming engagement.

Depending on the scope and maturity of your current platform. Each engagement combines replatforming advice with guided delivery, not standalone pieces.

Engagement 01

Replatforming assessment

For organisations that know their platform is due for modernisation but do not yet have a clear picture of scope and approach. We map the current stack, identify technical debt and hidden integrations, and deliver a target-state blueprint and a prioritised roadmap. You can take it forward yourselves or continue with us in a follow-on engagement. This is the most requested starting point, and it gives management a solid basis for an investment decision without committing up front to a larger programme.

DiscoveryArchitecture visionRoadmapBusiness case
Engagement 02

DevOps platform modernisation

Designed for IT departments that want to consolidate their build, deploy, observability and security tooling. We advise on CI/CD choices, infrastructure as code, the monitoring stack and the platform engineering model, and help you put it in place. See also our page on cloud-native platform development. Many teams underestimate how much speed a coherent DevOps platform delivers: lower maintenance overhead, shorter lead times from idea to production, and measurably faster mean time to recovery during incidents.

CI/CDIaCObservabilityPlatform engineering
Engagement 03

End-to-end IT platform modernisation

The full engagement: discovery, target state, vendor selection, build-versus-buy advice per module, guided pilot implementation, skills transfer and change management. Suited to mid-market and enterprise organisations that want to fundamentally redesign their platform without shutting down the business. Often combined with replacing legacy software module by module. We work in defined phases with go/no-go decision points, so the board can reassess at each turning point whether the path still fits business priorities.

BlueprintVendor selectionPilotSkills transferChange management

What a replatforming engagement delivers.

Concrete deliverables you can act on yourselves, not abstract reports.

Current-state report

Components, integrations, technical debt and operational risks mapped out.

Target-state blueprint

Architecture vision, the desired cloud, data and integration layer, and build-versus-buy decisions.

Prioritised roadmap

Which modules come first, with business impact, dependencies and risk per step.

Vendor and SaaS advice

Which cloud provider, iPaaS, observability stack and SaaS replacements fit.

Guided pilot

The first module goes live according to the blueprint, so the approach is tested in practice.

When platform modernisation becomes urgent.

Four patterns in which we typically guide organisations through replatforming.

Age

Platform five to fifteen years old

The application still runs, but new features keep getting more expensive. Releases slow down, faults keep recurring, and no one dares take big steps any more. Modernisation restores predictability and turns further development back into a healthy investment rather than a risk.

Cloud route

To the cloud, but without a compass

Your CTO knows the platform needs to move to the cloud, but it is unclear what should go first, what can stay, and what the path looks like. We work together on a blueprint and a phasing plan that fits your risk profile and budget rhythm, and the skill set your IT organisation has today.

DevOps

Consolidating your DevOps platform

Different teams have their own tooling, their own pipelines and their own monitoring. The CI/CD stack has become a patchwork of accidents. Modernising your DevOps platform brings calm, speed and a lower operating budget, and gives your platform engineering team a coherent foundation to build on.

Concern

Multi-brand or multi-site stack

After mergers and acquisitions, each brand runs on its own platform. That means operational inefficiency, duplicated maintenance and awkward data reporting. We build a consolidation path that keeps every brand running, often combined with enterprise software development for the shared core components.

End-of-life

Vendor or OS reaching end of life

The vendor of your core ERP, database or operating system is withdrawing support. Patches stop, audit requirements tighten, and waiting times for consultants grow. Replatforming guidance helps you choose in good time between upgrade, re-platform or replacement, before the market makes the decision for you.

Scaling problems

The platform can no longer keep up with volume

The business is growing, but the platform is not scaling with it. Peaks cause outages, batch jobs run longer every night, and the operational burden weighs on the team. A targeted re-architecture of the most demanding components gives you breathing room without rebuilding the entire platform.

Compliance

New data or security requirements

NIS2, DORA, sector-specific audit requirements or stricter data residency rules force architectural changes. We translate those requirements into concrete platform choices, such as encryption strategy, observability level and the identity layer, and weigh them against the wider modernisation.

Who we provide replatforming guidance for.

Our clients are typically mid-market and enterprise organisations with a platform that has seen better days. CTOs and CIOs who have been given a mandate internally to modernise, but do not yet have the roadmap. IT directors who notice that technology is slowing the business down rather than speeding it up. Architects who have the target state in their heads but not the bandwidth to draw it out. We fill exactly that gap.

We also work with IT departments that want to tackle the modernisation of their DevOps platform specifically: building a coherent platform engineering layer on which product teams can safely deliver themselves. That is a type of engagement we can run on its own, or within the wider IT platform modernisation. As a replatforming advisory firm we deliberately stay small. Our role is direction and steering, not supplying an army of consultants.

The specific profiles we often support are organisations with multiple brands or locations looking to consolidate their stack, B2B companies with an in-house customer platform that no longer meets production requirements, and organisations with an internal data platform where the number of integrations has got out of hand. In all these cases, replatforming guidance only delivers value when it is tied to a concrete first pilot, otherwise it stays at good intentions.

How our replatforming advice works.

Four phases, with a go/no-go decision at every point. You are not committed to the full journey before the first phase is complete.

01Discovery→ 02Blueprint & roadmap→ 03Pilot→ 04Rollout & skill transfer

Discovery

Architecture review, interviews with IT, business and operations. We document components, integrations and the hidden complexity that always lurks somewhere.

Blueprint & roadmap

Target-state architecture, build-versus-buy decisions, a vendor shortlist and a phased roadmap with business impact and dependencies per module.

Guided pilot

We build or guide the first module live according to the blueprint. This tests the architecture and builds confidence for the wider rollout.

Rollout & skills transfer

Modules go live one by one. At the same time, control shifts to your own team, with clear runbooks, training and a shared way of working.

The stacks we work with.

For each engagement, we choose what fits your existing environment and your target state. We have no preference for one vendor, but we have experience with the most common cloud, integration and DevOps stacks. See also our page on custom enterprise software development for the build side of a modernisation.

Cloud & infrastructure
AWSAzureGCPKubernetesTerraformPulumi
DevOps & observability
GitHub ActionsGitLab CIArgoCDDatadogGrafanaOpenTelemetry
Data & integration
PostgreSQLKafkaSnowflakedbtBoomiMuleSoft

Frequently asked questions about platform modernisation.

What is the difference between platform modernisation and digital transformation?
Digital transformation is the broad strategic change within an organisation: new business models, processes, customer journeys and culture. Platform modernisation is its IT component: the architecture, technology and operations of the platform the business runs on. We cover the IT side; for the wider strategy, see our page on digital transformation consultancy.
What is the difference between replacing legacy software?
Replacing legacy concerns a single application or module that has reached the end of its life. Platform modernisation is the overarching programme in which we decide, component by component, whether that legacy system is rebuilt, replaced or modernised. A modernisation often starts with a replatforming assessment, and legacy replacement becomes a sub-project within that roadmap.
Which replatforming approaches do you recommend?
We work with the five well-known approaches: lift-and-shift, re-platform, re-architect, re-build and re-place. In practice, a sound target state often combines two or three of these, depending on the module, its business criticality and the amount of technical debt. We choose pragmatically, not ideologically.
How long does a replatforming project take?
A replatforming assessment for one clearly defined platform domain can be completed within a few sprints. A full end-to-end modernisation typically runs through several phases with go/no-go decision points. We start with discovery and a blueprint, and only then agree on an execution rhythm. We do not make a fixed promise on timelines without understanding your context.
What are the biggest risks in platform modernisation?
We see three risks most often: scope creep, as hidden integrations surface late; knowledge loss, when the internal team is not brought along; and big-bang thinking, which stalls the business during the transition. Our blueprint addresses all three explicitly: discovery before commitment, skills transfer built in, and a phased rollout with a fallback for each module.
How do you choose the cloud provider or vendors?
We are vendor-neutral. We assess AWS, Azure and GCP against your specific workloads, existing contracts, data residency requirements and your team's skill profile. For iPaaS, observability and data warehousing we take the same approach: a short shortlist per layer, with clear trade-offs. The choice remains yours; we make it well-founded.
What determines the cost of a platform modernisation?
The main cost drivers are scope (a single sub-platform or the entire IT stack), whether you opt to re-architect or rebuild rather than lift-and-shift, the number of integrations that need rewiring, and the duration of the guided pilot. We work in clearly defined phases so the budget per phase stays predictable and you can steer along the way.
Pilot or big bang: what do you recommend?
Almost always a pilot or a module-by-module approach. A big-bang replatforming sounds efficient but concentrates risk and often brings the business to a standstill. By modernising module by module, we deliver value faster, learn from the first go-live, and keep the lights on. See also our approach to platform migration as a sub-project.

Talk to us about modernising your platform.

A thirty-minute introductory call, no strings attached. We listen to the state of your IT or DevOps platform, ask about your business goals, and suggest a first direction for the replatforming path. No sales deck, just a conversation that moves you forward.

Schedule an introductory callEmail fabian.vandijk@appfront.nl

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