Systems I designed and built

A distributed multi-tenant SaaS unifying CRM and sales, operations, a developer API and a client contact portal, across responsive web and native mobile.

• Commercially validated — paying customers run their day-to-day operations on it today, acquired entirely by word of mouth with no marketing spend.
• Enterprise security and RBAC: JWT with certificate validation, 2FA, full tenant isolation, granular per-user CRUD permissions, and a complete audit trail.
• Real-time updates via SignalR, and a REST API with HMAC-SHA256 signed webhooks.

.NET 10 · MassTransit/RabbitMQ · Redis · PostgreSQL · Angular · React · Flutter · Firebase — ~10 services containerised on Kubernetes with auto-scaling and full observability.

notevex.com

A bespoke distributed platform running a business's day-to-day operations, analytics and invoicing end to end.

• Real-time dashboards turning operational data into decisions; invoicing generated directly from live operational data.
• Shares Notevex's event-driven architecture, giving it a proven path to a future multi-tenant SaaS offering.

.NET 10 · MassTransit/RabbitMQ · Redis · PostgreSQL · Vue.js — ~10 services on Kubernetes with auto-scaling and full monitoring.

The regulated-fintech platform I own at work, described by its architecture. Transaction and profile monitoring, client onboarding, risk assessment and sanctions/PEP screening.

• Transaction and profile monitoring — ~30 microservices designed and delivered start to finish: gateway APIs, MCP servers, and the consumers and processors behind a complete monitoring solution.
• Client onboarding — ~28 microservices across a gateway layer (REST/gRPC and reporting APIs) and single-responsibility processors coordinated by SAGA orchestration; broker-absorbed back-pressure replaced dropped requests from partners without correct rate limiting or throttling.
• In flight — risk assessment being extracted from the monolith onto the same architecture; sanctions and PEP transaction screening fully architected and queued for delivery.

The same event-driven platform extended into a vertical suite in active development.

• Hotelvex (hotel management), Payrovex (payroll), Accountvex (accounting) and Eventvex (event management and booking).
• 10+ products built independently across web and mobile — 3 running in production today, 5+ live including marketing sites — plus automation bots and MCP servers.