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Application modernisation without stopping the business

Backendz modernises legacy applications step by step: moving them to the cloud, upgrading old frameworks and rebuilding the parts holding you back, while your team keeps working. The result is software that's faster, safer and ready for AI.

Or see how we engage first — four shapes, no sales call required.

  • Legacy assessments
  • Cloud migration
  • Framework upgrades
  • .NET Framework to .NET 8
  • Database migration
  • SQL Server upgrades
  • Re-architecture
  • API layers
  • Incremental rebuilds
  • Strangler-fig migration
  • UI modernisation
  • Containerisation
  • CI/CD setup
  • Security hardening
  • Performance tuning
  • AI-ready data

We move you off the system everyone is afraid to touch

  • No more software only one retired contractor understands

  • Stop paying for servers in a cupboard that could fail any day

  • Forget frameworks that stopped getting security updates years ago

  • Done with database limits that halt the business without warning

  • Skip waiting weeks for changes that should take a day

  • Say bye to integrations that are impossible because there's no API

Why build application modernisation with us?

Incremental, not big-bang

We replace legacy systems piece by piece, so the business keeps running and risk stays small at every step.

We've done it on live systems

We've upgraded production databases, moved applications to the cloud and migrated live data between environments without stopping operations.

Rewrite only when it pays

We recommend upgrading, re-platforming or rebuilding based on cost and risk, not on what's fashionable.

AI-ready at the end

Clean data, modern APIs and cloud hosting, so you can add automation and AI next.

We buildApplication Modernisation

How we engage

Four ways this usually starts

Most enquiries land in one of these. If yours does not, say so on the call — we would rather shape the engagement than sell you the nearest shape we have.

Most teams start here

You need to know where you stand

Typical timeline: 2–4 weeks

  • Assessment of code, infrastructure, security and data
  • Risks ranked by business impact
  • Modernisation roadmap with options and costs

Best for: businesses that know their system is a risk but not how big

You need to get to the cloud

  • Move applications and databases to Azure or AWS
  • Hosting, backups and monitoring set up properly
  • Cut over with minimal downtime

Best for: businesses on ageing servers or expiring contracts

The framework is out of date

  • Upgrade old frameworks and databases to supported versions
  • Security and performance fixes along the way
  • Automated tests so future changes are safe

Best for: apps on unsupported .NET, PHP or database versions

The system needs replacing, gradually

  • New modules built alongside the old system
  • Users moved across feature by feature
  • Legacy switched off only when nothing depends on it

Best for: core systems too risky to replace in one go

Case studies

Ideas that became systems in production

Every card is a build we shipped and still support. Open one for the decisions behind it.

We serve the best in the industry

Scope

All of it, written down

What falls inside this service. Nothing here is an upsell discovered later.

What we modernise

  • desktop and web applications
  • databases
  • on-premise servers
  • old frameworks
  • monolithic codebases
  • manual deployments

How we do it

  • rehosting
  • re-platforming
  • refactoring
  • re-architecting
  • incremental rebuilds
  • data migration

Keeping it safe

  • full backups
  • staging environments
  • parallel running
  • rollback plans
  • automated tests
  • data validation

Stack

  • .NET 8
  • SQL Server
  • PostgreSQL
  • React
  • Azure
  • AWS
  • Docker
  • Azure DevOps
  • GitHub Actions
  • IIS
  • Linux
  • Tailscale

How it works

  1. We review the code, infrastructure, data and how the business depends on the system.

Planning session with notes on the wall
Testimonials

The people who have to live with what we build

Operations directors, CTOs and plant managers — the ones still using the system a year after the invoice cleared.

5.0
Operations manager holding a tablet in a bright logistics officeFreight operator · 14 depots
We wanted answers our team could check against the original document. Having the relevant clause beside the response makes the assistant useful when reviewing policies and contracts.
Emma CollinsHead of Business Operations at Clearbrook Advisory
We needed scheduling, availability and shift changes in one place. Backendz shaped the system around the way our operations team works and stayed involved after launch to help us refine it.
James CarterOperations Director at Northbridge Facilities
Our rental journey had to work for both vehicle owners and travellers. Backendz brought listings, availability and bookings together into a platform that feels straightforward to use.
Sophie BennettCo-founder at Roamway Rentals

Ask for references and we will put you on a call with the team that runs the system — not a case study PDF.

References available on request

We wanted a practical way to review PPE and safety-zone events using our existing cameras. The team focused on the situations our site managers need to investigate and made the footage easier to review.
Daniel BrooksSite Operations Manager at Oakmere Construction
A single headcount does not tell us where congestion is developing. The zone-based view gives our team a clearer picture of how people are moving and where attention may be needed.
Olivia ReedVenue Operations Director at Cedarhall Events
The priority was a counting workflow our warehouse team could use during a normal shift. Backendz connected image-based counts with the records we already use and made discrepancies easier to review.
Michael TurnerWarehouse Manager at Harbourline Logistics
Tender preparation involves gathering evidence and getting the right people to review each section. Backendz brought those steps into one workspace, with drafts our team can check and approve.
William ParkerBid Manager at Westhaven Technical Services
Our information was spread across several operational systems. Backendz designed a clearer way to ask questions, inspect the supporting evidence and keep approval with our team before an action is taken.
Charlotte HayesChief Operating Officer at Elmbridge Services Group
Our estimating process needed to reflect how we actually price work. Backendz took time to understand the inputs and rules, then built a quoting journey our team could review and refine.
Thomas MitchellManaging Director at Ridgewell Roofing & Cladding
The reconciliation workflow gives our finance team one place to review mismatches and supporting records. We can trace an exception back to its source and decide what needs attention.
Henry WilsonFinance Director at Ashford Distribution
The team took time to understand how our staff work between appointments. The resulting system brings scheduling and client information together without making the day more complicated.
Amelia FosterHead of Operations at Meadowcrest Care
We had outgrown the spreadsheets that held our pricing rules. Backendz helped turn that knowledge into a quoting tool we can maintain and explain to new colleagues.
George EvansManaging Director at Stonefield Fabrication
We could review working features throughout the build and give specific feedback. That made it easier to keep the product focused on the people using it.
Isabel MorganProduct Director at Brightpath Learning
Connecting our sales and inventory systems was the priority. The integration gives our team a clearer view of updates and a practical way to investigate records that need review.
Jack HarrisonTechnology Manager at Westbrook Retail
Our field team needed access to job details away from the office. The mobile workflow keeps the relevant information close at hand and gives the office a clearer view of progress.
Grace PhillipsOperations Lead at Alderway Field Services
The cloud work started with understanding our existing systems and dependencies. The team documented the setup and gave us a clearer basis for monitoring and ongoing maintenance.
Oscar BennettIT Director at Brookvale Manufacturing
We wanted a client portal that reflected how we deliver our services. Backendz brought documents, requests and progress updates into a straightforward experience for clients and staff.
Lily ThompsonCommercial Director at Willowbank Consulting
The engineers worked alongside our team and explained their decisions clearly. Code reviews and practical documentation helped us stay involved throughout delivery.
Freddie ClarkeHead of Engineering at Redwood Energy Services
Our teams were entering the same information into several tools. Backendz mapped the process with us and built a more connected workflow with clear review points.
Alice CooperBusiness Systems Manager at Fairhaven Property Group
Operations manager holding a tablet in a bright logistics officeFreight operator · 14 depots
We wanted answers our team could check against the original document. Having the relevant clause beside the response makes the assistant useful when reviewing policies and contracts.
Emma CollinsHead of Business Operations at Clearbrook Advisory
Our rental journey had to work for both vehicle owners and travellers. Backendz brought listings, availability and bookings together into a platform that feels straightforward to use.
Sophie BennettCo-founder at Roamway Rentals
A single headcount does not tell us where congestion is developing. The zone-based view gives our team a clearer picture of how people are moving and where attention may be needed.
Olivia ReedVenue Operations Director at Cedarhall Events
Tender preparation involves gathering evidence and getting the right people to review each section. Backendz brought those steps into one workspace, with drafts our team can check and approve.
William ParkerBid Manager at Westhaven Technical Services
Our estimating process needed to reflect how we actually price work. Backendz took time to understand the inputs and rules, then built a quoting journey our team could review and refine.
Thomas MitchellManaging Director at Ridgewell Roofing & Cladding
The team took time to understand how our staff work between appointments. The resulting system brings scheduling and client information together without making the day more complicated.
Amelia FosterHead of Operations at Meadowcrest Care
We could review working features throughout the build and give specific feedback. That made it easier to keep the product focused on the people using it.
Isabel MorganProduct Director at Brightpath Learning
Our field team needed access to job details away from the office. The mobile workflow keeps the relevant information close at hand and gives the office a clearer view of progress.
Grace PhillipsOperations Lead at Alderway Field Services
We wanted a client portal that reflected how we deliver our services. Backendz brought documents, requests and progress updates into a straightforward experience for clients and staff.
Lily ThompsonCommercial Director at Willowbank Consulting
Our teams were entering the same information into several tools. Backendz mapped the process with us and built a more connected workflow with clear review points.
Alice CooperBusiness Systems Manager at Fairhaven Property Group
We needed scheduling, availability and shift changes in one place. Backendz shaped the system around the way our operations team works and stayed involved after launch to help us refine it.
James CarterOperations Director at Northbridge Facilities

Ask for references and we will put you on a call with the team that runs the system — not a case study PDF.

References available on request

We wanted a practical way to review PPE and safety-zone events using our existing cameras. The team focused on the situations our site managers need to investigate and made the footage easier to review.
Daniel BrooksSite Operations Manager at Oakmere Construction
The priority was a counting workflow our warehouse team could use during a normal shift. Backendz connected image-based counts with the records we already use and made discrepancies easier to review.
Michael TurnerWarehouse Manager at Harbourline Logistics
Our information was spread across several operational systems. Backendz designed a clearer way to ask questions, inspect the supporting evidence and keep approval with our team before an action is taken.
Charlotte HayesChief Operating Officer at Elmbridge Services Group
The reconciliation workflow gives our finance team one place to review mismatches and supporting records. We can trace an exception back to its source and decide what needs attention.
Henry WilsonFinance Director at Ashford Distribution
We had outgrown the spreadsheets that held our pricing rules. Backendz helped turn that knowledge into a quoting tool we can maintain and explain to new colleagues.
George EvansManaging Director at Stonefield Fabrication
Connecting our sales and inventory systems was the priority. The integration gives our team a clearer view of updates and a practical way to investigate records that need review.
Jack HarrisonTechnology Manager at Westbrook Retail
The cloud work started with understanding our existing systems and dependencies. The team documented the setup and gave us a clearer basis for monitoring and ongoing maintenance.
Oscar BennettIT Director at Brookvale Manufacturing
The engineers worked alongside our team and explained their decisions clearly. Code reviews and practical documentation helped us stay involved throughout delivery.
Freddie ClarkeHead of Engineering at Redwood Energy Services

Why Backendz

5 yrs

In production

Ops CopilotTender Response DrafterPolicy & Contract AssistantPallet CountingConstruction Site PPE & Safety MonitoringCrowd Density MonitoringDigital Security PlannerVirtual EstimatorJoblogyPamacraftsRollBnBVenus AestheticsShiftTrackerFreight DispatchInvoice Reconciliation AIChilled TraceabilitySteel Quoting EngineFactory Floor AppFleet Driver App

We quote fixed and we hold it

2

Platforms run in-house

Legacy assessmentsCloud migrationFramework upgrades.NET Framework to .NET 8Database migrationSQL Server upgradesRe-architectureAPI layers
Cloud Strategy & ArchitectureCloud MigrationCustom ERP DevelopmentInfrastructure ModernisationCloud EngineeringERP ImplementationCloudOpsERP IntegrationDevOpsSupport & Managed Cloud ServicesERP Customisation & ModulesCloud Cost OptimisationERP Data MigrationCloud Security & ComplianceAI & Edge InfrastructureERP Support & OptimisationSaaS Stack AuditCustom CRM DevelopmentCustom HR & Workforce ManagementCustom Job & Field Service ManagementCustom Client Portals & BookingSaaS Data Migration & ExitAI Proof of Concept & MVP
Incremental rebuildsStrangler-fig migrationUI modernisationContainerisationCI/CD setupSecurity hardeningPerformance tuningAI-ready data
AI Agent DevelopmentCustom AI Assistants & ChatbotsGenerative AIAI Workflow AutomationNatural language processingCustom Software DevelopmentComputer Vision DevelopmentWeb App DevelopmentMobile App DevelopmentAI Video Analytics for CCTVProduct DevelopmentMVP DevelopmentUX/UI DesignApplication ModernisationSoftware Testing & QAMachine Learning & Predictive AnalyticsERP & operationsAI Product DevelopmentData & cloudProduct & designAutomation & integrationsSupport & operations

45

Services, one team

An engineer at work on a production system

Senior engineers, not account managers

24/7 production support and monitoring

Bring us the part of the business that still runs on workarounds

FAQ

The things people ask before they commit.

Still have questions?

Ask it on the call. We would rather answer an awkward question early than discover it in month three.

Book a call
What is application modernisation?

Application modernisation is updating legacy software so it runs on current technology: moving it to the cloud, upgrading old frameworks and databases, or rebuilding parts of it. The goal is software that's more secure, faster to change, cheaper to run and able to connect with modern tools and AI.

Should we modernise or rebuild from scratch?

It depends on the code's quality and how much it holds the business back. Many systems can be upgraded or moved to the cloud at far lower cost and risk than a rewrite. Backendz assesses the system first and recommends rebuilding only the parts where it pays.

Can we modernise without downtime?

Usually, yes. By modernising in stages, running old and new systems in parallel and planning each cut-over carefully, most migrations happen with little or no interruption to daily work.

How long does application modernisation take?

An assessment typically takes 2 to 4 weeks. A cloud move or framework upgrade can take weeks; a gradual replacement of a core system usually runs over several months, delivered in stages.

What is the strangler-fig approach?

The strangler-fig approach replaces a legacy system gradually: new features are built as separate modules alongside the old system, and users are moved across piece by piece until the old system can be switched off. It avoids the risk of a single big-bang replacement.

Will modernising make our software AI-ready?

It lays the foundation. Modern APIs, clean and accessible data, and cloud hosting are what AI tools and automation need to connect to your systems. Many clients add AI features once modernisation is complete.