01 /
The monolith slows change
New features affect too many modules and require cautious releases.
Migration / modernization
Migrate PHP → Go
with behavior intact.
A staged move of critical components: map contracts and dependencies, migrate a bounded slice, and verify compatibility.
PHP → Go
API contracts
Data
Rollout
Staged system transitionrazrabotchik.com / MIGRATION
EXISTINGPHP
NEW SERVICEGo
API contracts01 / PRESERVE
Bounded migration02 / CHANGE
Verify and switchRisk control
First step
Dependency map
Essential check
API compatibility
Before release
Rollout plan
When it matters
Change the system gradually while the product keeps working.
Migration makes sense when the current architecture slows progress and a full rewrite carries too much risk. The goal is to move a defined responsibility to a better suited service.
Before implementation, define what must stay compatible for clients and internal teams.
02 /
A critical bottleneck
A specific component needs a different performance or concurrency model.
03 /
API must remain stable
Clients and integrations depend on current contracts and data.
How the work proceeds
Each stage has a verifiable boundary.
01 /
Map the system
Dependencies, data, APIs, and critical journeys.
02 /
Set the boundary
Choose the migration slice and connection to the old system.
03 /
Implement
Go service, contract tests, and behavior comparison.
04 /
Switch traffic
Monitoring, success criteria, and rollback plan.
Example solution
Define the boundary before the move.
If a PHP system serves clients and internal integrations, migration starts with dependencies and contracts. A bounded Go service is introduced in stages, with compatibility checked before traffic moves.
Migration scope and sequence follow a review of the system.
Staged migration
Compatibility at every stage
Contracts · data · staged rollout
Questions
Must the whole PHP project move?
Usually this is decided component by component. Start where the benefit is clear and dependencies are manageable.
How do we avoid breaking the API?
Record existing contracts, compare key journeys in old and new implementations, and roll out in stages.
Can the timeline be estimated in advance?
A useful estimate follows a review of migration scope, dependencies, and compatibility criteria.
Next step
Describe your challenge.
Describe the system, goal, and constraints. You will receive a proposed next step, delivery format, and plan for technical oversight.