17 free courses — no signup wall
Architect-led enterprise cloud, security & AI
320+ downloadable toolkits — instant delivery
Skip to content
Architect-led cloud, security & AI

Cloud, security, and AI systems —
built by the architects who run them.

Citadel designs, secures, and operates production cloud and AI for enterprises — and teaches the same craft in the open. Hire the expertise, or learn from it. No signup wall either way.

For enterprises

Fixed-price consulting and managed AI agents — 425 catalogued agents across 8 domains, governed by design.

For individuals

17 free AWS, Azure & GCP courses and 320+ toolkits. Start in 60 seconds — no account needed.

No credit card. No account needed for free courses. Enterprise engagements scoped and priced up front.

17Free courses
320+Toolkits
54Countries reached
2024Founded
AWS · Azure · GCP certifiedGoverned AI agents — identity, tiers, full loggingFree courses used by engineers in 54 countries

For enterprises

Two ways Citadel ships production work

Senior, multi-cloud delivery with fixed-price scope — or governed AI agents run like employees, not chatbots.

Consulting

Fixed-price cloud, security & identity

Cloud architecture, security & GRC, identity & IAM, AI enablement, and 6R migration — scoped and priced up front, delivered by working architects.

Explore consulting
AI Agents · SIAS

425 agents, one governance model

Production-ready agents across 8 domains — each a first-class principal with its own identity, scoped credentials, and full action logging. Designed, secured, hosted, and monitored by Citadel.

See how SIAS works

How SIAS is governed

Every agent is a first-class principal

Autonomy is set per agent, per action — with full logging behind everything.

T1

Autonomous

Read-and-report work — triage, analysis, drafting. Runs unattended.

T2

Supervised

Writes to systems of record within scoped credentials and change windows.

T3

Human-gated

Anything touching money, people, or legal is draft-only behind named approvers.

Free Cloud Courses

Six of our 17 free courses, built by a Senior Multi-Cloud DevSecOps Architect. No signup wall.

FREE

AWS Cloud Certification

Master AWS services, architecture patterns, and earn your certification.

Start Free →
FREE

Azure Cloud Certification

Build expertise in Microsoft Azure infrastructure, DevOps, and security.

Start Free →
FREE

Google Cloud Platform

Learn Google Cloud core services, networking, and data engineering.

Start Free →
FREE

DevOps & SDLC Mastery

End-to-end software delivery with CI/CD, containers, and automation.

Start Free →
FREE

Cloud Security & Zero Trust

Protect cloud workloads with identity, compliance, and zero-trust models.

Start Free →
FREE

Cloud AI & Machine Learning

Build intelligent cloud applications with ML pipelines and AI services.

Start Free →

Featured Products

Enterprise-grade cloud toolkits, AI resources, and career accelerators.

Leadership & Management

Engineering Culture Assessment Toolkit

Principal-Level Engineering Leadership: Engineering Culture Assessment Toolkit After leading platform teams…

$45.00$62.10
Leadership & Management

Technology Partnership Evaluation Guide

Principal-Level Engineering Leadership: Technology Partnership Evaluation Guide After leading platform teams…

$49.00$70.56
Leadership & Management

Succession Planning for Technology Leaders

Principal-Level Engineering Leadership: Succession Planning for Technology Leaders After leading platform…

$55.00$79.20
Leadership & Management

Engineering Communication Style Guide

Principal-Level Engineering Leadership: Engineering Communication Style Guide After leading platform teams of…

$35.00$50.75
Leadership & Management

Multi-Cloud Governance Framework

Principal-Level Engineering Leadership: Multi-Cloud Governance Framework After leading platform teams of…

$69.00$93.84
Leadership & Management

Compliance Program for Engineering Leaders

Principal-Level Engineering Leadership: Compliance Program for Engineering Leaders After leading platform…

$79.00$114.55
Leadership & Management

Innovation Lab Creation Guide

Principal-Level Engineering Leadership: Innovation Lab Creation Guide After leading platform teams of 12-45…

$67.00$93.13
Leadership & Management

Post-Merger Technology Integration Guide

Principal-Level Engineering Leadership: Post-Merger Technology Integration Guide After leading platform teams…

$89.00$127.27

How engagements run

Governed delivery, evidenced end to end

The scenarios below are representative of how Citadel scopes and governs work. Named client outcomes will be published here as engagements clear for reference.

Representative engagement

SOC triage at T1, isolation human-gated

A mid-size provider runs phishing- and alert-triage agents at Tier 1 and evidence collection at Tier 2, cutting analyst time on routine triage while every isolate or disable action stays human-gated at Tier 3.

Representative engagement

Fixed-price cloud migration, 6R assessment

A platform team gets a scoped 6R migration plan with cost and risk called out up front — delivered against a fixed price, not an open-ended time-and-materials meter.

Who builds this

Architect-led, multi-cloud by default

Senior cloud, security & AI practitioners

Citadel is run by senior cloud and security architects who design, secure, and operate production systems — and teach the same craft in the open. The free courses and toolkits are drawn from real delivery work, not theory.

Named architect profiles and credentials are being published here as part of the redesign. In the meantime, every engagement is scoped and delivered by working practitioners across AWS, Azure, and GCP.

Architect certifications

AWSAzureGCP

Frameworks we deliver against

SOC 2ISO 27001HIPAAFedRAMP-alignedCMMC
Follow on LinkedIn