Expertise
GCP Cloud Security Engineer — Zero Trust, Chronicle, IAM & GKE
Abraham O. Samuel designs and implements GCP security controls across identity, network boundaries, workloads, software delivery and security operations, using services including Cloud Armor, Chronicle, SCC, IAM, VPC Service Controls, KMS and GKE.
Last reviewed: 19 July 2026
Who this is for
Product and platform teams running sensitive or regulated workloads on Google Cloud, especially teams that need security controls to be deployable, observable and maintainable.
Problems I help solve
- Excessive IAM permissions and long-lived credentials
- Public attack surface and weak service boundaries
- Fragmented logging, detection and incident triage
- GKE workload and software supply-chain risk
- Missing audit evidence and control monitoring
How I approach the work
- 01
Start with asset, identity and data-flow discovery
- 02
Design least-privilege access and explicit trust boundaries
- 03
Codify controls with Terraform and policy-as-code
- 04
Centralize telemetry and detection engineering
- 05
Test controls and preserve evidence for operations and audits
Related case studies
Cybersecurity · 2025
GCP Zero-Trust Architecture with Cloud Armor
I designed and deployed a production-grade zero-trust security architecture on GCP — identity-first, policy-driven access controls across every service boundary, with no implicit trust for any user, device, or service.
ExploreCybersecurity · 2024
Cloud SIEM: GCP + Chronicle Security Operations
I designed and deployed a cloud-native SIEM environment using Google Chronicle — complete log ingestion pipeline, 14 custom YARA-L detection rules, automated incident triage, and a documented incident response playbook.
ExploreDevSecOps · 2025
Kubernetes Security Hardening Playbook
I built a comprehensive GKE security hardening reference implementation — RBAC design, pod security, network segmentation, admission control, and runtime threat detection, all codified in Terraform and Kubernetes manifests.
ExploreCybersecurity · 2025
GCP SCC Custom Findings & Security Posture Management
I deployed GCP Security Command Center Premium and extended it with four custom security findings for organisation-specific threats — plus a security posture dashboard tracking finding resolution over time and a Jira integration for CRITICAL and HIGH findings.
ExploreCybersecurity · 2025
Security Incident Response Automation on GCP
I built an automated incident response system that contains threats, collects evidence, and notifies the right people — all within minutes of an SCC finding, before a human analyst has even opened their laptop.
ExploreDevSecOps · 2024
GCP VPC & Firewall Audit Tool
I built an automated GCP VPC and firewall rule auditing tool that scans all projects in an organisation, risk-scores each rule, maps them against security baselines, and produces a prioritised remediation report — what normally takes 3 days takes 15 minutes.
ExploreCybersecurity · 2025
Audit Log Integrity Verification System
I built a cryptographic audit log integrity verification system — using SHA-256 hashing, KMS-signed hash registries, and immutable Cloud Storage to create a tamper-evident audit trail that satisfies HIPAA, ISO 27001, and SOC 2 log integrity requirements.
ExploreCybersecurity · 2025
IAM Access Review Automation
I built a quarterly IAM access review automation system — pulling all IAM bindings across a GCP organisation, risk-scoring access, routing certification tasks to managers, tracking responses, and producing SOC 2 / ISO 27001 audit evidence.
ExploreRelated writing
Google Cloud · Jul 2026
Diagnosing Cloud Run Deployments: Build, Revision, IAM and Runtime Failures
A systematic way to isolate Cloud Run failures across source builds, image publication, revision startup, identity and request handling.
ExploreCloud Security · Jul 2026
Debugging 403 Permission Failures in Event-Driven GCP Systems
A principal-first method for resolving 403 errors across Scheduler, Pub/Sub, Cloud Run, Tasks and notification services without over-granting IAM.
ExploreKubernetes Security · Jul 2026
GKE and DevSecOps Supply-Chain Hardening: From Commit to Runtime
Layered controls for source review, dependency scanning, signed images, admission policy, workload identity and runtime detection on GKE.
ExploreAI Security Engineering · Jul 2026
Designing an Agentic Security Harness with Tools, Memory and Evolving Skills
Engineering principles for orchestrating security tools and LLM agents while keeping actions bounded, evidence traceable and learned playbooks reviewable.
ExploreRelated services
Cloud Security Audit
I run a comprehensive security posture assessment of your GCP or Azure environment — firewall rules, IAM bindings, org policies, and encryption controls — and deliver a prioritised remediation report with exact fix commands.
ExploreZero-Trust Architecture Design
I replace perimeter-based security with identity-first access controls across your entire cloud environment — BeyondCorp access policies, Cloud Armor WAF, VPC Service Controls, and Workload Identity Federation.
ExploreSecurity Incident Response Automation
I build automated incident response systems that contain cloud security threats in minutes — SCC-triggered Cloud Functions that quarantine compromised VMs, revoke suspicious IAM bindings, and notify your team before a human has even opened their laptop.
ExploreIAM Access Review & Governance
I conduct quarterly IAM access reviews across your GCP organisation — risk-scoring every binding, routing certification decisions to the right managers, revoking excess access immediately, and producing BigQuery evidence for SOC 2 and ISO 27001 audits.
ExploreFrequently asked questions
What does a GCP cloud security engineer do?
The role connects IAM, network controls, workload security, logging, detection, key management and governance so risks are addressed across the full cloud system.
Which GCP security services do you work with?
My portfolio covers Cloud Armor, Security Command Center, Chronicle, IAM, Cloud IAP, VPC Service Controls, Cloud KMS, Secret Manager, Cloud Audit Logs and GKE security controls.
Can you help with zero-trust architecture on GCP?
Yes. My approach uses identity-aware access, workload identity, least privilege, explicit service perimeters and continuous telemetry rather than a trusted network perimeter.
Do you provide penetration testing?
The services here focus on architecture, hardening, detection, secure delivery and technical control implementation. Any offensive testing scope should be agreed separately and explicitly.
Discuss a technical problem
Share the system, constraint or control you are working through. I will help clarify the engineering scope and the next useful step.
Contact Abraham O. Samuel