6 case studies across 4 industries, from marketplaces and multi-tenant SaaS to serverless backends and AI features. Clients are anonymized by agreement; every number comes from the work itself.
Elasticsearch-backed reporting, timezone-aware goal automation across hundreds of tenants, two-way sync with 75+ practice-management systems, role-specific dashboards and mobile APIs, inside a SOC 2 and HIPAA-compliant Rails product.
A Django marketplace where roasters buy in-stock green coffee from verified suppliers: multi-role accounts, a 7-state order workflow, warehouse-aware shipping and Stripe Connect payouts under separate US and Canadian configurations.
AWS CDK across 18 DynamoDB tables and two Cognito pools, COPPA-grade consent for school programmes, QR-verified rideshare with scheduled settlement, fail-closed audit exports, and a React portal plus React Native app, hardened for a live pilot.
AWS CDK backend for clients and beauty professionals: an 8-state appointment lifecycle, deposits and auto-confirm flows, hourly Stripe Connect payouts in Paris time, reminders over push, SMS and WhatsApp, and a data model built so an AI assistant can drive it safely.
A role-aware assistant built on Claude with typed tools over the marketplace API. It books and confirms, collects deposits, drafts stories and daily summaries, suggests rebookings and helps clients reserve, with the tool list derived from the active space and approval before every write.
Schema-per-tenant Django architecture with PostGIS geofencing for automatic clock-ins, payroll and invoicing automation, a crew mobile app, and a Stripe webhook state machine for subscriptions and affiliate payouts.
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