Problem: Hotspot and WiFi operators needed automated billing, voucher control, and subscriber management without manual reconciliation.

Solution: Built the MobiLink WiFi billing platform with RADIUS integration, package management, captive portal flows, M-Pesa STK payments, and customer self-care.

Results: Faster subscriber onboarding, automated cutoffs, real-time revenue tracking, and multi-site WiFi operations from one dashboard.

Problem: Pool halls needed unattended, pay-per-play billing on physical tables without coin mechanisms or manual supervision.

Solution: Engineered an IoT pool table controller with M-Pesa STK integration — pay from phone, table unlocks automatically, usage logged to cloud.

Results: 24/7 cashless play, accurate session billing, remote device monitoring, and higher table utilization.

Problem: Legacy billing caused revenue leakage and slow provisioning.

Solution: Built a RADIUS-connected billing suite with M-Pesa automation and customer portal.

Results: 38% faster provisioning, automated collections, and centralized NOC visibility.

Problem: Exposed admin tooling and inconsistent firewall baselines.

Solution: Cloudflare Zero Trust + hardened firewall scripts and audit logging.

Results: Closed critical exposures and standardized access across branches.

Problem: Support volumes overloaded human agents.

Solution: RAG assistant across WhatsApp, web chat, and email with human handoff.

Results: 52% ticket deflection within 60 days.

Problem: Field sensors lacked unified telemetry and alerts.

Solution: MQTT ingestion layer with live dashboards and automated SMS alerts.

Results: Reduced MTTR with real-time anomaly detection.