Client
Meridian Financial
Industry
Fintech / Lending
Duration
5 Months
Services
Product Engineering, Cloud & DevOps, Data Engineering
Meridian Financial experienced significant latency spikes and occasional reconciliation discrepancies in their payment database. Multiple microservices attempted to query and debit ledger balances simultaneously, leading to database lock contention, slow API responses (averaging 1.2s), and extensive manual validation effort required by finance administrators every morning to locate discrepancies.
We designed a decoupled system architecture. First, we implemented an immutable double-entry ledger ledger database model with transaction safety checks (optimistic locking) to ensure balances cannot slide. Second, we built a Redis-backed queue system that processes transaction actions asynchronously, responding to API callers immediately. Third, we established secure SFTP and API integrations directly with banking networks for real-time reconciliation logs.
We design clean system flows that separate concern layers. Check out how data moves securely through this operational framework.
We removed raw SQL transaction locks by designing a credit/debit journal model, transforming updates into rapid inserts and caching running balances in Redis.
We refactored the checkout flow to respond with a correlation ID instantly, processing the actual credit validation asynchronously in a worker pod.
We stay accountable for database performance and business outcomes.
“They replaced a complex, legacy two-year roadmap with a high-availability working platform in five months. The database and cloud architecture still hasn't needed a rewrite.”
We provide ongoing SLA monitoring, server patches, scaling adjustments, and security IAM audits under a monthly operability agreement.
Discuss your system constraints, data structures, and compliance rules with a senior software architect.