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Rivac AI Labs
Security, Risk & Compliance

Cloud Security Architect

Cloud environments get insecure gradually (an overly permissive IAM role here, an open storage bucket there) until the blast radius of a single compromised credential is the entire company. This service designs zero-trust, cloud-native security architecture for AWS, Azure, or GCP environments: least-privilege IAM, network segmentation, workload isolation, and logging that actually gets reviewed. It's for teams that have grown their cloud footprint faster than their security posture and need someone to map the actual attack surface, not just run a checklist against a shared-responsibility model. The outcome is a cloud environment where a single misconfiguration doesn't compromise everything downstream.

This is a capability we deliver for you as a service, not a role we’re hiring for.

How We’d Approach This

A clear, staged plan, not a black box

These are the service-specific steps inside our six-step process.

  1. 1

    Diagnose the current cloud environment for IAM sprawl, exposed services, and network segmentation gaps.

  2. 2

    Pilot the zero-trust redesign on one account or VPC to validate least-privilege policies don't break production workflows.

  3. 3

    Review the hardened architecture and rollout sequence with infrastructure teams before touching production accounts.

  4. 4

    Roll out the segmented, least-privilege architecture across remaining accounts with monitoring for policy drift.

What You Get

Deliverables from this engagement

  • Cloud security architecture assessment and findings
  • Least-privilege IAM policy redesign
  • Network segmentation and workload isolation plan
  • Centralized logging and drift-detection configuration

Six Ways We Could Architect This

Different engagement, different build, pick the shape that fits

There’s more than one way to deliver on this service. Browse a few of the ways we’d structure the work, depending on your speed, budget, and integration needs.

Read all 6 architectures as text

Lean Fast-Start Architecture

Single Account Audit

  • Cloud Console IAM Review
  • AWS IAM Access Analyzer
  • Storage Bucket Inventory

Manual Findings

  • Overly Permissive Roles Listed
  • Exposed Storage Buckets Found
  • Spreadsheet of Findings

Remediation

  • Least Privilege Policy Rewrite
  • Bucket Access Locked Down
  • Public Access Blocked Org Wide

Validation

  • Manual Retest of Fixed Items
  • Findings Closed Out
  • Next Account Scheduled for Review

Cloud-Native / Managed Services Architecture

Cloud Landing Zone

  • Multi Account Organization
  • Control Tower Guardrails
  • Baseline Account Templates

Managed Identity Layer

  • Managed IAM Roles
  • Managed VPC Segmentation
  • Managed Service Control Policies

Managed Monitoring

  • CloudTrail Centralized Logging
  • GuardDuty Threat Detection
  • Managed KMS for Encryption

Outcome

  • Segmented Least Privilege Environment
  • Security Findings Dashboard
  • Quarterly Posture Review

Event-Driven & Automation-First Architecture

Triggers

  • IAM Policy Change Made
  • New Resource Deployed
  • Scheduled Compliance Scan

Automated Guardrails

  • Config Rule Evaluation Fires
  • Auto Remediation Lambda Runs
  • Drift Detected Against Baseline

Alerting

  • Security Channel Alert Sent
  • Ticket Auto Created for High Risk Change
  • Severity Auto Classified

Human Review

  • Architect Reviews High Risk Change
  • Policy Approved or Reverted
  • Baseline Updated After Review

Enterprise-Grade & Compliance-Ready Architecture

Governance

  • Access Review Board
  • Break Glass Procedure
  • Least Privilege Policy Standard

Enterprise Controls

  • Cross Account Audit Logging
  • Compliance as Code Conformance Packs
  • Mandatory Encryption at Rest

Redundancy

  • Multi Region Log Replication
  • Redundant KMS Key Backup
  • Failover Account Standby

Compliance Evidence

  • Mapped to SOC 2 and ISO 27001
  • Continuous Evidence Collection
  • External Audit Package Export

AI-Augmented, Human-in-the-Loop Architecture

IAM and Log Data

  • CloudTrail Activity Logs
  • Current IAM Policy Set
  • Resource Access Patterns

AI Policy Analysis Engine

  • AI Detects Anomalous Permission Usage
  • AI Drafts Least Privilege Policy Rewrite
  • AI Simulates Policy Impact

Cloud Architect Approval Gate

  • Architect Reviews Proposed Policy Change
  • Architect Tests Change in Staging Account
  • Architect Signs Off for Production

Deployment

  • Approved Policy Applied to Production
  • Rejected Change Sent Back to AI
  • Change Logged to Audit Trail

Integration-Heavy / Ecosystem-Connected Architecture

Client Ecosystem

  • Identity Provider Okta or Azure AD
  • Terraform or IaC Pipeline
  • Existing On Prem Network

Cloud Security Core

  • IAM and Segmentation Design
  • CSPM Tool
  • Policy as Code Engine

Two Way Sync

  • SSO Integration for Access
  • Policy as Code Pushed via Pipeline
  • VPN or Direct Connect Bridge

Reporting

  • Findings Synced to Ticketing
  • Cost and Posture Dashboard
  • Executive Risk Summary

More in Security, Risk & Compliance

Ready to get started?

Tell us what you’re trying to get done and we’ll help you find the highest-leverage place to start, scoped small enough to prove itself before you commit to anything bigger.

Talk to us about Cloud Security Architect

Most engagements like this start as a $500–$2,500 pilot, see full pricing.

Questions? Book a free call