
SaaS Migration:
Multi-Tenant SaaS Architecture
WWG SaaS migration services turn a single-tenant software product, installed or hosted separately for each customer, into one multi-tenant platform delivered as a service. They are for software vendors and companies with a product of their own that want to sell by subscription without multiplying installations. Senior engineers redesign tenancy and data separation, CI/CD pipelines, cloud infrastructure as code and monitoring, so the product can be changed safely while customers are using it.
Definition
What is SaaS migration to a multi-tenant architecture
SaaS migration is the engineering work of moving a software product to a software-as-a-service model built on a multi-tenant SaaS architecture, or of moving an existing SaaS platform onto infrastructure that can carry it. The work covers deployment pipelines, tenancy and data separation, scaling behaviour and release process, because a SaaS product is judged on how safely it can be changed while customers are using it.
specializations
What We Offer
Infrastructure as Code (IaC)
Automate and manage your infrastructure using tools like Terraform and CloudFormation for consistent and repeatable deployments.
CI/CD Pipelines
Design and implement robust Continuous Integration/Continuous Delivery pipelines using industry standards such as Jenkins, GitLab CI, or Azure DevOps.
Cloud-Native Optimization
Optimize your SaaS product for platforms like AWS, Google Cloud, and Azure, ensuring high availability and minimal latency.
Monitoring and Observability
Implement tools like Prometheus, Grafana, and Datadog for real-time insights, performance optimization, and issue resolution.
our advantages
Why Choose SaaS DevOps?
Accelerate time-to-market
Accelerate time-to-market through automated pipelines.
Optimize cloud costs
Optimize cloud costs while maintaining scalability.
Enhance security
Enhance security with proactive monitoring and compliance.
process
Why WWG?
Proven Expertise
Proven Expertise
Tailored Solutions
Tailored Solutions
End-to-End Support
End-to-End Support
Cost Efficiency
Cost Efficiency
Cutting-Edge Tools
Cutting-Edge Tools
saas - advantages
Benefits of SaaS DevOps with WWG
businesses
Who are our web applications suitable for

Small and medium-sized businesses looking to automate operations.

Startups seeking rapid scalability.

E-commerce companies looking to expand into new markets.
What Our Clients Are Saying

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
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.
The engagement
SaaS migration in concrete terms
- Duration
- Set in scoping, according to the perimeter: number of installations to bring onto the platform, data structure, state of code and releases.
- Start
- With the initial assessment of the product and the existing installations, which fixes the phased plan before any code is touched.
- Who does the work
- WWG senior engineers with experience in DevOps consulting and SaaS development. A named technical owner follows the project and documents every decision.
- What we need from you
- Access to code, environments and one representative installation, a point of contact, the list of customers to migrate with their customisations.
- Output
- A multi-tenant platform in production, infrastructure as code, CI/CD pipelines, monitoring and observability, documentation of the tenancy decisions.
- Format
- A phased project from initial assessment to continuous optimisation; optional ongoing operation afterwards for a monthly fee.
The price is set before we start, in scoping, per phase and on the perimeter. We do not publish a price list: two products with the same number of customers can need very different work.
Comparison
SaaS migration and the alternatives
When per-customer installations become a cost that grows with every contract, there are four ways out. This table says what each one is for, so the choice is made on the real problem rather than on the label.
| Criterio | WWG SaaS migration | New SaaS product from scratch | Cloud migration as-is | In-house DevOps team |
|---|---|---|---|---|
| Who it is for | Software vendors and companies with a working single-tenant product and active customers. | Companies that can afford to rebuild the product while maintaining the old one. | Companies that want to leave their own servers without changing the delivery model. | Companies that want to build platform operations competence in-house. |
| What it covers | Tenancy and data separation, infrastructure as code, CI/CD pipelines, cloud-native optimisation, monitoring. | A new system, with customer migration at the end. | Moving servers and data to AWS, Azure or Google Cloud; the code stays the same. | Depends on the people hired and on the time they can give the project. |
| Duration | Set in scoping, in phases; the first customers move onto the platform before the end. | Long and hard to estimate; two products to maintain in the meantime. | Shorter; the cost per installation remains. | Adds hiring and onboarding time to the project itself. |
| What you get | A multi-tenant platform in production, documented, with pipelines, monitoring and a named owner. | A new product, with the risk of losing functions customers relied on. | The same product on different infrastructure. | In-house skills, if the people stay. |
| When it makes sense | When the product is worth it, the customers exist and the per-installation model no longer holds. | When the current product is beyond recovery. | When the problem is hardware, not the delivery model. | When the platform becomes the permanent core of the business and you want to invest in people. |
If you are looking to replace installed software with third-party SaaS applications, this is not the right page: this page is about turning your own product into a SaaS platform.
Published case studies
- Kippy: platform and apps for a pet tracker
Kippy, an IoT startup, was looking for a technology partner to develop a mobile app with localisation and monitoring functions.
- Neotecnica: code audit and Kubernetes cluster
Code audit and security hardening for Neotecnica: over 13,000 issues identified, more than 19 vulnerabilities fixed and a high-availability Kubernetes cluster delivered.
FAQ
Frequently Asked Questions
Related services
What getting to SaaS takes
A multi-tenant product usually means reworking the architecture through microservices migration and moving the workload onto elastic infrastructure through migration to the cloud.
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