Financial Services
Re-platforming a payments product for scale
Rebuilt a monolithic payments stack into modular services, cutting deploy time and unlocking new markets.
The challenge
A monolithic payments platform had become impossible to change safely. Every release was a multi-day event, and expansion into new markets was blocked by a single shared database and a tangled release process.
- Every deploy was a multi-day, high-risk coordinated event
- A single shared database blocked expansion into new markets
- Tangled dependencies made even small changes unsafe
Our approach
We mapped the domain, carved the monolith into well-bounded services, and introduced infrastructure-as-code with automated pipelines. Migration ran incrementally behind feature flags so the business kept shipping the entire time.
- Domain-mapped the monolith and split it into well-bounded services
- Introduced infrastructure-as-code with automated CI/CD
- Migrated incrementally behind feature flags — zero downtime
The outcome
Deploys went from days to minutes, teams could release independently, and two new markets launched on the same platform within the year — with no increase in incident rate.
- Deploy time dropped from days to minutes
- Teams ship independently without cross-team coordination
- Two new markets launched on one platform, no incident-rate rise
How it works
The path a request takes through the system.
- 1Client apps
- 2API gateway
- 3Payment services
- 4Event bus
- 5Ledger DB
Results
- Deploy time cut from days to minutes
- Teams ship independently behind feature flags
- Two new markets launched on one platform
- No increase in incident rate through the migration
What we delivered
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