Microservices Migration: from monolith to a scalable architecture, without downtime
Your monolithic app is hitting its limits: I lead the migration to a scalable, resilient architecture.
The problem I solve
Your monolithic application has served you well, but every deployment is now risky, a single slow feature slows everything else down, and several teams step on each other in the same codebase. Rewriting everything at once is too risky, doing nothing costs more and more. You need a progressive migration that splits the system without interrupting the service.
What you get
- ✓Full audit of your existing codebase
- ✓Progressive zero-downtime migration plan
- ✓Containerized deployment with Docker & Kubernetes
- ✓+45% scalability proven in production
How I work
- 1
Audit of the existing system
Mapping of the code, dependencies and load hotspots. First we check that microservices really are the right answer.
- 2
Domain-driven split
Identification of business contexts (DDD), then choice of the first service to extract: the one with the most value and the least risk.
- 3
Progressive migration
New services behind a Kong gateway, asynchronous communication through RabbitMQ, outbox pattern for data consistency. The old code keeps running during the transition.
- 4
Containers and operations
Docker, Kubernetes, health checks, monitoring and zero-downtime deployments.
Case study
From a monolith to over 10 microservices (Central Test)
Led the progressive migration of the HR SaaS platform to over 10 Laravel and Symfony microservices, communicating through RabbitMQ behind a Kong gateway, containerized with Docker and Kubernetes in collaboration with the DevOps team. Result: +45% scalability in production.
Tech Stack
Frequently asked questions
- Do I really need microservices?
- Not always. If a single team works on the application and the load stays under control, a well-structured modular monolith is often simpler and cheaper. The initial audit is there to decide.
- Can we migrate without interrupting the service?
- Yes, that is the point of a progressive migration: new services replace the monolith feature by feature, behind a gateway, while the existing application keeps running.
- How long does a migration take?
- It depends on the size of the monolith. We first validate the approach by extracting one service, then move forward step by step, each step shipped to production.
- Which stack do you use?
- Laravel and Symfony for the services, RabbitMQ for messaging, Kong as the gateway, Docker and Kubernetes for deployment. I work remotely from Antananarivo, in direct contact with your development and DevOps teams.