Case Studies
Engineering outcomes from payment platform engagements.
Results from architecture reviews, platform re-designs, and infrastructure optimization work across payment gateways, wallet platforms, and fintech processors.
The challenge
A payment gateway processing mid-market transaction volumes was experiencing cascading timeout failures during peak load. The authorization success rate was degrading under load spikes, the system had no circuit breaker patterns, and a single-region deployment meant that infrastructure events caused complete service unavailability. The engineering team was in frequent incident mode and deploying changes required maintenance windows.
What we did
- 01
Conducted a full architecture review, mapping all service dependencies and failure modes
- 02
Introduced circuit breaker patterns at PSP integration and internal service boundaries
- 03
Re-designed the deployment topology for active-passive multi-region operation
- 04
Rebuilt the deployment pipeline to enable zero-downtime deployments with automated rollback
Results
12 weeks engagementp99 Latency
13× faster
Authorization Rate
now 98.4%
Uptime
near-zero downtime
Peak TPS
throughput increase
MTTR
incident recovery
Deploy Frequency
12× more often
Facing a similar challenge on your platform?
Start with an assessmentThe challenge
A digital wallet platform was experiencing recurring ledger inconsistencies that required manual reconciliation intervention. The root cause was a combination of missing idempotency guarantees, race conditions in concurrent balance updates, and an audit trail that did not support reliable reconciliation. Reconciliation failures were generating operational overhead and eroding confidence in the platform's financial accuracy.
What we did
- 01
Redesigned the ledger architecture around event sourcing, with immutable transaction records and derived balance views
- 02
Implemented idempotency keys across all transaction creation paths, eliminating duplicate processing
- 03
Rebuilt the reconciliation pipeline with automated matching, exception detection, and escalation workflows
- 04
Introduced a comprehensive audit trail suitable for regulatory reporting
Results
8 weeks engagementReconciliation Failures
fully eliminated
Manual Ops Overhead
engineering time saved
Settlement
same-day settlement
Audit Trail Coverage
full coverage
Regulatory Report Time
faster compliance
Facing a similar challenge on your platform?
Start with an assessmentThe challenge
A transaction processor's cloud infrastructure costs were growing at 40% YoY while transaction volume was growing at 18%. The gap was driven by over-provisioned compute, missing reservation coverage, inefficient data transfer patterns, and a proliferation of underutilized services accumulated through rapid scaling. Infrastructure spend had become a significant operational concern.
What we did
- 01
Conducted a full cloud cost audit across compute, storage, networking, and data transfer
- 02
Right-sized compute instances based on actual utilisation profiles
- 03
Implemented a reservation strategy covering baseline compute capacity
- 04
Identified and decommissioned 14 underutilized services and consolidated redundant infrastructure
- 05
Optimized data transfer patterns and inter-region communication costs
Results
4 weeks engagementMonthly Cloud Spend
immediate savings
Cost Per Transaction
unit economics improved
Reserved Coverage
cost-predictable base
Services Removed
decommissioned
Payback Period
on engagement cost
Facing a similar challenge on your platform?
Start with an assessmentWant results like these for your platform?
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