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Microservices Migration

Transform Your Monolithic Architecture into Agile, Scalable Microservices

Microservices Migration

WWG microservices migration consulting is the phased move of a production monolith into independent services, run by senior engineers without stopping the business. It is for CTOs and technical leaders at European companies whose monolith slows releases or fails to scale. You get an analysis of the current architecture, a phased migration plan, services decoupled and deployed one at a time, performance and security testing, and monitoring after go-live.

Definition

What is microservices migration

Microservices migration is the engineering work of breaking a monolithic application into independent services, each with its own functional boundary, its own release cycle and communication over APIs. It proceeds in phases: the existing architecture is analysed, the separable components are identified, then each one is extracted and deployed on its own while the system keeps running for the whole duration of the work.

our advantages

Why Choose WWG?

01

Proven Expertise

A strong track record of successfully migrating diverse businesses to microservices architectures.

02

Custom Solutions

Tailored strategies designed to meet your unique operational and business goals.

03

Scalable Results

Achieve a future-proof system that grows with your business demands.

06

Faster Time-to-Market

Deliver new features and updates with greater speed and agility.

4.8

Clutch rating

  • Clutch badge: Top AI Consulting Company Italy 2026
  • Clutch badge: Top Software Developers Italy 2026
  • Clutch badge: Top IT Services Company Italy 2026
  • Clutch badge: Top Web Developers Real Estate Italy 2026

specializations

How We Help Businesses

Accelerated Development

Shorter development cycles enable faster feature deployment and innovation.

Enhanced Scalability

Easily adapt your systems to changing business needs without compromising performance.

Improved Fault Isolation

Minimize downtime by isolating failures to specific services.

Cost Efficiency

Optimize resources by scaling individual services as needed.

process

How Do We Work?

01

Discovery Phase

Analyzing your existing architecture and defining clear migration objectives.
02

Service Identification

Identifying components within your system that can be decoupled into microservices.
03

Migration Strategy Development

Creating a detailed, phased plan to ensure stability and scalability throughout the migration process.
04

Implementation

Incrementally decoupling and deploying microservices to avoid system disruption.
05

Testing & Optimization

Rigorous testing to validate performance, security, and interoperability of all services.
06

Ongoing Support

Providing continuous monitoring and enhancements to ensure the long-term success of your microservices environment.

platforms

Technologies We Use

Containerization: Docker, Podman
Orchestration: Kubernetes, OpenShift
API Management: REST, GraphQL, gRPC
Cloud Solutions: AWS, Azure, Google Cloud
CI/CD Pipelines: Jenkins, GitLab CI/CD, CircleCI
Databases: MySQL, PostgreSQL, MongoDB.
reviews

What Our Clients Are Saying

Clutch rating
"WWG's competencies in technical and management aspects were impressive."

WWG successfully delivered a project document and software that fully met RAG requirements. WWG's project management was efficient — they delivered everything on time. Moreover, they showcased clear communication and strong technical capabilities, which were key to the project's success.

Francesco Adinolfi

R&D, Innovaway SpA

Custom Software Development

WWG provided custom software development services for an ICT company. The team designed and developed an innovative ICT software system capable of supporting RAG services.

Paese
Naples, Italy

The engagement

Microservices migration in concrete terms

Duration
Several months to over a year, depending on system complexity and the number of services to decouple. Set in scoping, after discovery.
Start
With the discovery phase: analysis of the existing architecture, objectives and perimeter fixed before any code is touched.
Who does the work
WWG senior engineers. A named technical owner follows the project from discovery to ongoing support and documents every decision.
What we need from you
Access to code, environments and data, one point of contact who knows the system, a few hours of interviews. Your team keeps working.
Output
Architecture analysis, phased migration plan, services decoupled and in production, performance and security test reports, documentation, monitoring.
Format
A phased project with scope and estimate agreed per phase; the monolith stays in service for the whole duration.

The price is set in scoping, per phase, on the perimeter that comes out of discovery. We do not publish a price list: two monoliths with the same number of users can need very different migrations.

Comparison

Microservices migration and the alternatives

When a monolith slows releases, four routes with different costs and risks land on the table. This table says what each one is for, so the choice is made on the problem you need solved rather than on the architecture of the moment.

CriterioWWG microservices migrationFull rewriteModular monolithIn-house hire
Who it is forCompanies with a production monolith that has to keep running while it changes.Companies that can afford to pause product evolution and start again.Smaller systems with a small team and infrequent releases.Companies that want to build platform and DevOps competence in-house.
What it coversDiscovery, service identification, phased plan, incremental implementation, testing, ongoing support.A new system built in parallel, with data migration at the end.Internal refactoring of the monolith: clear module boundaries, no separate deployment.Depends on the people hired and on the time they can give the project.
DurationSeveral months to over a year, in phases, with the first services in production early.Long and hard to estimate; no benefit until the switch-over.Shorter; does not solve per-component scalability limits.Adds hiring and onboarding time to the project itself.
What you getIndependent services in production, documentation, pipelines and monitoring, with a named owner.A new system, with the risk of reproducing the old one's functions incompletely.A tidier, more maintainable monolith, still released as one unit.In-house skills, if the people stay; the project depends on their continuity.
When it makes senseWhen releases are slow, scaling is per function and the system cannot stop.When the monolith is beyond recovery and the business can sustain a pause.When the problem is code quality, not scale or release independence.When the migration is the start of a permanent platform investment.

Discovery can conclude that a modular monolith is the right choice for you. In that case we say so, and the work stops there.

Published case studies

FAQ

Frequently Asked Questions

Microservices are small, independent services that communicate through APIs and are developed, released and scaled separately. A monolithic system bundles every component into one application: each change requires a release of the whole system, and a failure in one module can take everything down. With microservices each service has a defined boundary, its own release cycle and fault isolation that limits the impact of a problem to one part of the system.
A microservice is not just an API. The API is the contract through which other services reach it; the microservice also owns its own data, its own deployment and its own scaling behaviour. Splitting a monolith into endpoints that still share one database and one release is a distributed monolith, which combines the drawbacks of both models. In the service identification phase we draw boundaries around business capabilities and data, not around URLs.
The benefits of migrating to microservices are four, and they only count if the monolith is actually denying them: faster development and deployment cycles, because each service releases on its own; targeted scalability, because you scale the component under load rather than the whole application; better fault isolation, which reduces the impact of failures; easier and more frequent updates. In the discovery phase we check with you which of these are real in your case.
Some companies are moving away from microservices, usually because they split too early or drew boundaries that forced services to talk constantly. What replaces them in those cases is a modular monolith: one deployable unit with clear internal boundaries. Microservices remain the right answer when parts of a system need independent scaling, independent releases or separate ownership. Our discovery phase says which of the two fits your system, and the honest answer is sometimes the modular monolith.
WWG's microservices migration covers the whole path in six phases: discovery, where we analyse your existing architecture and define objectives; service identification, where we find the components that can be decoupled; migration strategy, a phased plan for stability and scalability; implementation, where services are decoupled and deployed incrementally; testing and optimisation for performance, security and interoperability; ongoing support with monitoring and enhancements. Each phase produces something you can check before the next one starts.
A microservices migration takes a time that depends on the complexity of your system and the number of services being decoupled: projects range from several months to over a year for larger, more complex systems. The duration for your case is set in scoping, after the discovery phase, and the plan is phased: the first services reach production well before the end of the project, so the benefits arrive progressively rather than at the end.
A microservices migration is priced before it starts, on the perimeter that comes out of discovery: how many components need separating, the state of the code and tests, the target infrastructure. The work is organised in phases with agreed scope and estimate, so each phase has a known cost before it begins. We do not publish a price list, because two monoliths with the same number of users can need very different migrations.
WWG senior engineers do the migration, with a named technical owner who follows the project from discovery to ongoing support and keeps a record of every decision taken. From you we need access to code, environments and production data, one point of contact who knows the system, and a few hours of interviews with the people who build and run it. Your team keeps working on the system throughout the migration.
No, existing operations are not disrupted during the migration. The approach is incremental: each service is decoupled, tested and deployed on its own while the monolith keeps serving everything else. Performance, security and interoperability tests run before each step, so downtime stays minimal and any phase can be paused or rolled back without affecting the rest of the system. Your business continues to operate throughout.
For microservices migration we use established industry tools: Docker for containerisation, Kubernetes for orchestration, REST or GraphQL APIs for communication between services, and cloud platforms such as AWS, Azure and Google Cloud to run them. The specific choice depends on your current stack and on your team's skills, because the migrated system has to be manageable by whoever inherits it, not only by whoever migrated it.
After the migration the microservices system enters ongoing support: continuous monitoring, corrective work and enhancements agreed with you. You receive documentation of the architecture, the pipelines and the choices made, so your team can take the services over on its own or continue with us through our software maintenance service. That decision is yours and is not tied to the migration project.
Microservices migration is for companies with a production monolith that slows releases, cannot scale its most used functions independently, or concentrates too much risk in a single deployment. They are usually European mid-market companies with a digital product, an e-commerce or a B2B platform that has to grow. For small systems or small teams, discovery may conclude that a well structured monolith is the better choice, and we will say so.

Related services

What breaking up a monolith involves

The decision is made on evidence, and the evidence comes from technology stack analysis. Shipping many independent services needs the pipelines of DevOps engineering, and the result is measured through system optimization work.

Tell Us What's Broken

Mohamed Deramchi

Mohamed Deramchi

Founder & CEO of WWG

20+ years in IT leadership, product, and cloud consulting. Leads delivery strategy and senior technical direction.

Phone+39-02-8148-0719
Emailbusiness@wwg.it
AddressCorso Europa 15, 20122 Milano (IT)

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