anandy@quantumjarvis.com ~ $
all systems converged · changed=0

Anjan Nandy
builds platforms that run like products.

Platform engineer working across the full depth of the stack — bare metal, virtualization, Kubernetes, GitOps, security, and the applications on top. Everything on this domain runs on a private cloud I designed, automated, and operate end to end. This site is served by it.

KubernetesProxmox · CephAnsibleArgo CDHashiCorp VaultKeycloak · OIDCPKI · TLSJava · SpringReact · TypeScriptPostgreSQLNATSObservability
Exhibit A

The platform behind this page

Not a diagram of something I once worked near — the live system serving you this profile. Three physical nodes, a hyper-converged Ceph storage layer, an HA Kubernetes cluster delivered by GitOps, and a deliberately independent “floor” of core services that can repair the cluster if it dies.

WAN edge gateway nginx · TLS/SNI + VPN demux :443 KUBERNETES · 3 masters + autoscaled workers Argo CD · GitOps ingress · cert-manager apps · admin · wiki · nextcloud · finance · lockbox · MinIO… ESO ← Vault · external-dns · OTel · ELK CORE FLOOR · survives a dead cluster Vault HA ×3 · Keycloak · PostgreSQL · DNS ×2 · LDAP private ACME CA · NAS/NFS · VPN · offsite backup BARE METAL · 3 × Proxmox VE · hyper-converged Ceph (RBD + CephFS) every guest reproducible from Ansible · idempotent converge clients · VPN TLS: two-tier PKI public wildcard + internal ACME CA SSO: Keycloak on every UI
delivery path (GitOps) core services — independent of the cluster physical layer
Capabilities

What I do, with proof attached

Each capability below is demonstrated by something running in production on this platform — not a keyword list.

Infrastructure & virtualization

Design and operation of clustered compute and storage from the metal up: hypervisors, distributed storage, guest lifecycle, capacity planning.

3-node Proxmox VE cluster · Ceph RBD + CephFS · reproducible VM/CT tooling · HA + fencing

Kubernetes & GitOps

HA clusters built from kubeadm up, delivered entirely by GitOps: Argo CD owns every namespace, CI builds and syncs, humans never kubectl-apply.

3-master cluster · kube-vip · custom scale-from-standby node autoscaler · HPA · app-of-apps · shared Helm library

Security & identity

Secrets management, PKI, and single sign-on as platform primitives: every service gets TLS and OIDC by default, secrets never live in git.

Vault HA (source of truth, ESO delivery) · two-tier PKI (public wildcard + private ACME CA) · Keycloak SSO fleet-wide · LDAP/SSSD central login · OpenVPN w/ own 3-tier PKI

Automation

Everything as code, everything idempotent: twenty-plus Ansible subsystems where re-running any playbook converges to changed=0.

20+ subsystems · guarded destructive tooling · day-0 host enrollment · zero manual configuration drift

Observability

Metrics, logs, and traces treated as one correlated system — if it can't be observed, it isn't done.

Prometheus + Grafana + Alertmanager · ELK with fleet log shipping · OpenTelemetry + Tempo tracing · trace↔log↔metric links proven

Data & messaging

Relational stores, object storage, and event backbones provisioned with least-privilege consumers and tested backup/restore paths.

PostgreSQL (TLS-only, per-consumer roles) · MinIO S3 · NATS JetStream · event-driven encrypted offsite backup (restore-proven)

Full-stack development

Production application development on the JVM and in the browser — the software layer that makes the platform usable.

Java · Spring Boot · GraphQL · React + TypeScript · Vite · Playwright/vitest/Gradle test gates in CI

Networking & edge

DNS, routing, VPNs, and TLS termination designed as a coherent edge: one front door, split-horizon internal resolution, protocol-aware multiplexing.

single :443 edge multiplexing HTTPS + VPN fallback by SNI preread · split-horizon DNS pair · Cloudflare-managed zone · three-mode OpenVPN
Software

Applications I've built on it

Full products — backend, frontend, schema, CI, and deployment — running as first-class tenants of the platform.

admin

Infrastructure control plane: server registry, certificate distribution engine, access-role management for the whole fleet.

Spring Boot · GraphQL · React
finman

Personal-finance manager: accounts, multi-currency FX, deposits and projections, document storage.

Spring Boot · React · PostgreSQL · MinIO
lockbox

Password manager with AES-256-GCM encryption at rest, scoped sharing with revoke, and an integration API for sibling apps.

Spring Boot · React · AES-GCM
orchestrator

Visual goal/workflow editor and execution platform with its own runner fleet.

React Flow · Spring Boot · CI runners
backup pipeline

Event-driven offsite backup: file events over NATS JetStream, debounced sync to an encrypted cloud remote, weekly reconcile.

NATS · rclone crypt · Vault-delivered creds
credgate

Self-service credential portal: deposits secrets into Vault and objects into S3 with per-app path guards, fully SSO-gated.

REST · Vault · MinIO · Keycloak
“If you would need it in order to fix a dead cluster, it does not live in the cluster.”
— the design rule this platform is built on