Case Studies

The systems behind real projects

How each system was designed, and why. Every case study below comes from a shipped, in-production system — written up as architecture decisions and trade-offs rather than headline numbers.

FinTech

PCI-compliant payment platform

Real-time multi-currency settlement built to keep cardholder data inside a tokenisation boundary, so most services never touch PCI scope. Migrated from a single-server monolith to a horizontally-scaled architecture.

Node.jsPostgreSQLAWSRedis

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HealthTech

HIPAA-compliant EHR integration

Appointment scheduling, billing and patient communication integrated across a hospital network over FHIR, with audit trails and role-based access designed in from the start rather than retrofitted.

ReactPythonAzureFHIR

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E-Commerce

Headless commerce re-platform

A legacy storefront moved onto a headless architecture: server-rendered catalogue, a search tier that survives traffic spikes, and a checkout funnel rebuilt around fewer failure points.

Next.jsGraphQLElasticsearchGCP

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EdTech

Adaptive learning platform

Real-time quizzes, progress tracking and adaptive difficulty, built mobile-first for tier-2 and tier-3 India — offline-tolerant sync and a payload budget set for 3G rather than office wifi.

ReactNode.jsMongoDBTensorFlow

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