Raza Jahangir
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Case Study
Custom PHP
Intersys Ltd.

Global VPN Infrastructure

Secure VPN infrastructure with automated server provisioning and zero-knowledge privacy architecture.

The Challenge

Build secure VPN infrastructure with automated server provisioning, subscription management, and zero-knowledge user privacy guarantees across a global server network.

The Architecture

Implemented automated server deployment pipelines, subscription lifecycle management with Stripe, and distributed server allocation algorithms ensuring optimal latency. Built monitoring and alerting infrastructure.

The Impact

Achieved 99.99% uptime across global server network; scaled to support 100,000+ concurrent connections with sub-50ms routing; zero security incidents.

Technology Stack

Custom PHP Development
MySQL
PHP
VueJS
Linux
Server Administration
Networking
Nginx
REST API

Code Level Analysis

  • Ansible playbooks for zero-touch server provisioning
  • Load balancer with geo-aware routing (latency-based)
  • Prometheus + Grafana monitoring stack
  • Zero-knowledge auth using ephemeral session tokens

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