Rajkumar
000%

Infrastructure. Engineered.

Hey, I'm Rajkumar.
Expert in
Zero Trust Networking

Bridging traditional systems with modern DevOps. Building containerized, zero-trust, self-hosted infrastructure that scales.

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Infrastructure Stack

ProxmoxDockerTrueNASpfSenseTailscalen8nLinuxCaddyWindows ServerKubernetesWireGuardCloudflareGrafanaNextcloudAWSProxmoxDockerTrueNASpfSenseTailscalen8nLinuxCaddyWindows ServerKubernetesWireGuardCloudflareGrafanaNextcloudAWSProxmoxDockerTrueNASpfSenseTailscalen8nLinuxCaddyWindows ServerKubernetesWireGuardCloudflareGrafanaNextcloudAWSProxmoxDockerTrueNASpfSenseTailscalen8nLinuxCaddyWindows ServerKubernetesWireGuardCloudflareGrafanaNextcloudAWS

About Me

Bridging Traditional IT & Modern DevOps

Surat, India

With 7+ years of hands-on experience in complex server management and enterprise networking, I specialise in architecting resilient infrastructure — from bare-metal systems and enterprise firewalls to containerised deployments and self-hosted automation workflows.

I believe infrastructure should be reproducible, auditable, and self-healing. Every system I build is designed for zero-downtime operations, version-controlled configuration, and automated recovery.

Security-first mindset
Bare-metal to cloud architect
Automation obsessed
Version-controlled everything

7+

Years Experience

30+

Enterprise Infrastructure

20+

Zero-Trust Networks

50+

Self-Hosted Systems

100+

Nodes Managed

99.9%

Uptime Architected

Live Infrastructure Topology — 3-Zone · 3-Tunnel Enterprise Architecture
Swipe to explore topology ↔
Enterprise NOC — Live Infrastructure · 3 Active Tunnels
Nodes: 30LIVE2.40 Gbps1.10 Gbps
DIRECT IPSEC FAILOVER
TAILSCALE MESH
WIREGUARD CLOUD EXIT
PHYSICAL ON-PREMISECONTAINERISED SERVICESMULTI-CLOUD EDGE
Gateway
10.0.0.1
pfSense
Firewall/IDS
Core Switch
L3 / PoE
Proxmox 01
HA Node
Proxmox 02
HA Node
TrueNAS
ZFS RAID-Z2
PBS
Backup Server
Access Point
802.11ax
Workstation
10 clients
Mobile
BYOD
IoT Devices
MQTT/Zigbee
Tailscale
Overlay GW
Caddy Proxy
Auto-TLS/WAF
Kubernetes
Cluster · 3n
Docker Swarm
Hub · 8 svcs
Custom App
Deployed
Mailu
Mail Server
n8n
Automation
Nextcloud
Self-Hosted
SFTPGo
File Transfer
Jellyfin
Media Server
Grafana
Observability
Cloud Gateway
SD-WAN/VPN
AWS
EC2/S3/RDS
Azure
VMs/AD/DNS
Oracle Cloud
OCI/VCN
Google Cloud
GKE/GCS
Cloudflare
CDN/Zero Trust
DigitalOcean
Droplets/K8s
Vercel
Edge/CDN
System Log Stream

[T1-Tailscale] pfSense overlay connected — AES-256-GCM · 3.8ms RTT

[T2-WireGuard] Tailscale → Cloud GW: handshake OK · 4.1ms

[T3-IPsec ] Direct failover standby — Phase-2 SA pre-established

[K8s ] Cluster healthy — 3/3 nodes, 11 pods running

[Docker Swarm] 8 services nominal — 0 restarts in 24h

[Grafana ] Alert: all green — 0 firing rules, 12 dashboards active

[PBS ] Backup job complete — 2.1 TB, dedup ratio 3.2x

Proficiency Breakdown

Infrastructure Expertise

The tools, platforms, and techniques I use daily to architect, deploy, and automate production-grade infrastructure.

Core Tech Stack — Daily Drivers

DockerProxmox VEpfSenseTrueNASTailscaleLinuxCaddyn8nKubernetesWireGuardGrafanaNextcloudPBSCloudflareOPNsenseDockerProxmox VEpfSenseTrueNASTailscaleLinuxCaddyn8nKubernetesWireGuardGrafanaNextcloudPBSCloudflareOPNsense
Networking & Security
Live Metrics
live
99.97%
Uptime SLA
30+
Containers Live
50+
Services Managed
12
Backup Jobs/Day
4.2s
Avg Deploy Time
8 VLANs
Network Zones
Infrastructure & Hardware
live
  • Bare-Metal Provisioning
    BIOS → OS in <15 min
  • Proxmox VE Clustering
    2-node HA live-migrate
  • TrueNAS ZFS Pools
    RAID-Z2 + scrub 0 err
  • VM / LXC Orchestration
    30+ containers prod
  • Proxmox Backup Server
    Dedup ratio 3.2×
  • Custom Server Builds
    Rack + tower form
  • RAID Configuration
    RAID 0/1/5/6/Z2
  • iDRAC / IPMI Remote
    Out-of-band mgmt
Automation & Scripting
live
raj@infra-ops:~
RUNNING
Cloud & Multi-Cloud Platforms
AWS
EC2 · S3 · RDS
Azure
VMs · AD · DNS
Oracle Cloud
OCI · VCN · LB
Google Cloud
GKE · GCS · Run
Cloudflare
CDN · Zero Trust
DigitalOcean
Droplets · K8s
Vercel
Edge · Functions
Hetzner
Dedicated · Cloud

Always learning · Currently deepening: Kubernetes CKA · GitOps with ArgoCD · Observability with OpenTelemetry

Infrastructure Portfolio

Featured Architecture

Production-grade infrastructure systems I've designed and deployed — from zero-trust networks to fully self-hosted enterprise stacks.

Live

Zero-Trust Site-to-Site Network

Engineered a secure, zero-trust network utilising Tailscale to bridge physical locations without static IPs, managed entirely through custom subnets and exit nodes.

TailscaleVPNRoutingpfSenseZero-Trust
Live

Self-Hosted Automation Hub

Deployed a fully dockerised Tactical RMM and self-hosted n8n environment to automate daily IT workflows, monitor infrastructure, and reduce manual administration.

n8nTactical RMMDockerCaddyAutomation
Live

Enterprise Homelab & Services

Architected a robust self-hosted environment using Proxmox and Docker Compose, automating deployments for enterprise-grade services like Mailu and Nextcloud.

ProxmoxMailuNextcloudDockerSelf-Hosting

Get In Touch

Let's Work Together

Open to full-time roles, freelance infrastructure projects, and technical consultations.

Secure Transmission

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Global Availability
Available for infrastructure projects
Based in Surat, Gujarat (IST · UTC+5:30)
Open to remote & hybrid roles globally

Typical response time: within 24 hours

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