Platform Architect · DevOps · Zero-Trust Security
Santosh Kumar Pathak
I single-handedly designed, built, and operate a zero-trust, cloud-native platform — GKE, ArgoCD, and a custom SSO / RBAC / token-authority core — for a large state-sector power utility. Roughly twenty production microservices, end to end.
The journey
Over three years I took a fragmented estate of independently outsourced portals — each with its own login and no path to scale — and consolidated it into a single secure, observable, automatically-deployed platform. Each solution surfaced the next constraint. Read the full progression →
Case studies
Designing a Zero-Trust Auth Platform
Central SSO, a headless token authority, a custom role × office × app RBAC model, and an HMAC-signed service mesh.
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Migrating 30+ Services from Docker Swarm to GKE + GitOps
From no deployment automation to Kubernetes, Sealed Secrets, and ArgoCD-driven continuous delivery.
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A Shared Platform Library for ~20 Services
One hardened implementation of DB, Redis, storage, rate-limiting, security and internal auth — a single upgrade point.
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Architecture diagrams
System-architecture flowcharts, sequence diagrams, and design notes live in a companion repository: github.com/1TensaZangetsu → system-architecture.