class Mahendra < Engineer
LOCATION = "Mumbai, India"
COMPANY = "Reliance Jio"
ROLE = "Lead Product Manager & Engineering Lead"
def expertise
{
languages: ["Ruby", "JavaScript", "SQL"],
frameworks: ["Rails", "React", "Hotwire"],
databases: ["PostgreSQL", "Redis", "Elasticsearch"],
devops: ["AWS", "GCP", "AZURE", "Docker", "Kubernetes", "GitLab CI/CD"],
passion: "Solving business problems with code that scales"
}
end
endI don't just build features — I solve business problems with code that scales.
|
Scaled real-time systems handling concurrent WebSocket connections using Action Cable — live dashboards & instant notifications at scale Reduced deployment time by automating CI/CD pipelines with GitLab — cutting release cycles from days to hours on AZURE & GCP Optimized background jobs with Sidekiq — improved async throughput and eliminated queue bottlenecks in high-traffic services |
Designed monitoring infrastructure using Grafana + Elasticsearch — reduced mean time to detect (MTTD) for production incidents Architected VPN & network solutions with WireGuard and MikroTik — secured communications across distributed teams Shipped Hotwire-powered UIs replacing heavy JS frontends — faster page loads with significantly less client-side code |
Manage internet subscribers, monitor usage, automate billing, and control bandwidth from one scalable cloud platform built for ISPs, WISPs, and Wi-Fi operators.
|
Core Features
|
Impact & Scale
|
| Project | What I Did | Impact | |
|---|---|---|---|
 |
Rails API — OAuth2 REST API | Rails 8 API-only + Doorkeeper OAuth2 + Devise + CanCanCan role-based access | Production-ready API with token auth, auto-refresh, RBAC & comprehensive integration tests |
 |
SecureAuth — Two-Factor Authentication | Rails 7.1 + Devise + TOTP 2FA with QR setup, backup codes & AES-256 encryption | Secure login via email/mobile with RFC 6238 OTP, account lockout & replay attack prevention |
 |
Arbuda — Computer Complaint Management | Employee & complaint tracking with dashboard, detail views & status workflows | Streamlined IT complaint resolution with real-time tracking & accountability |
 |
SoftTrash — Soft Delete Ruby Gem | Open-source gem for Rails soft deletion with callbacks, scopes & association support | Reusable plug-and-play gem — trash, restore & filter records without permanent data loss |
 |
AI-Powered Dev Agents | Automated code generation and review agents | Reduced manual review overhead, faster PR turnaround |
 |
Infrastructure Automation | AWS pipelines + Docker + Kubernetes + Grafana | End-to-end containerized multi-app deployment |
 |
Hotwire Interactive UIs | Replaced heavy JS with Turbo + Stimulus | Faster page loads, less client-side JavaScript |
Rails 8 Features | Microservices at Scale | Advanced CI/CD
Load Testing & Performance | Feature Flags & Progressive Rollouts
Building scalable systems, one commit at a time.
From Mumbai with Ruby