Sumit Atre

Sumit Atre

Senior Cybersecurity Engineer · Cloud Security & Infrastructure · Toronto, ON

I specialize in FinOps-aligned cloud telemetry architecture, multi-tenant Azure platforms, DevSecOps pipeline automation, and Identity & Access Governance (Entra ID). Over 15 years architecting resilient hybrid infrastructure, automating security operations, and eliminating cloud ingestion waste.

Active Certifications: CISSP (ISC²) · Azure Administrator Associate (AZ-104)
Previously Held: Azure Solutions Architect Expert · M365 Enterprise Administrator Expert · CompTIA Security+
/ LinkedIn ↗ / GitHub ↗

Writing & Architecture Notes

Technical Articles

Core Competencies

Engineering Disciplines

Cloud FinOps & Enterprise Telemetry Architecture

  • Ingestion Re-Architecture: Overhauling enterprise Azure Log Analytics and Microsoft Sentinel ingestion workspaces. Designing surgical Data Collection Rules (DCRs) and tiered log bifurcation models that reduce monthly workspace expenses by over 90% (capturing over $100K+ CAD in annual recurring OpEx savings) with zero degradation in detection fidelity.
  • Kubernetes Telemetry Optimization: Engineered surgical Azure Monitor Data Collection Rules (DCRs) to filter high-volume, low-signal container stdout/stderr at the edge, retaining actionable security and control plane telemetry while eliminating non-security operational noise from high-cost analytical tiers—slashing container telemetry ingestion costs by over 70% ($50K+ annually).
  • Security Data Lifecycle & Retention: Structuring multi-tiered data retention lifecycles across high-throughput telemetry pipelines, decoupling security intelligence from high-cost analytical tiers and enabling multi-year forensic readiness.
  • Executive Governance: Authored FinOps capacity models, data lifecycle policies, and architectural cost-efficiency baselines for senior technical leadership to benchmark cloud modernization.

Enterprise Identity & Zero Trust Architecture

  • Zero Trust Foundation: Designing and enforcing end-to-end Zero Trust security roadmaps across multi-tenant enterprise platforms using Microsoft Entra ID (Azure AD), Conditional Access policies, Intune MDM/MAM, and Microsoft Purview DLP.
  • Secret Sprawl Elimination: Standardizing enterprise User-Assigned Managed Identity frameworks across multi-subscription environments, eliminating hardcoded credentials, SAS tokens, and API secrets from production automation.
  • Privileged Access Governance: Enforcing Privileged Identity Management (PIM), just-in-time (JIT) access policies, FIDO2/passwordless authentication, and continuous automated auditing of elevated administrative roles.
  • Enterprise PKI & Secure Access: Deploying and administering Active Directory Certificate Services (AD CS) enterprise CAs, certificate lifecycle automation, and RADIUS 802.1X network authentication.

SecOps Automation & Threat Hunting

  • SOAR Playbook Engineering: Developing automated incident response workflows via Azure Logic Apps and Azure Automation (PowerShell/Python runbooks) to triage anomalies, isolate compromised assets, and enrich threat intelligence.
  • Living-off-the-Land (LotL) Detection: Engineering advanced Kusto Query Language (KQL) analytics across endpoint process creation and command-line execution telemetry (Defender for Servers P2 / Defender for Endpoint).
  • MDR Collaboration & Threat Attribution: Serving as technical escalation lead partnering with Managed Detection and Response (MDR) providers (e.g., BlueVoyant) and SOC teams to conduct cross-platform forensic triage, eliminate false positives, and drive root cause remediation.
  • Crisis Response Leadership: Directing containment, forensic isolation, and remediation during critical industry supply-chain incidents and zero-day threat events with zero data loss or tenant compromise.

DevSecOps, Platform Engineering & GRC

  • Infrastructure as Code (IaC) Hardening: Conducting end-to-end security reviews of Terraform modules and cloud functions (e.g., Run From Package tokenization), embedding automated policy-as-code guardrails into CI/CD pipelines (Azure DevOps / GitHub Actions).
  • Attack Surface Management: Deploying Microsoft Defender External Attack Surface Management (EASM) to map public assets 24/7; hardening perimeter WAFs (Azure Front Door Premium with Default Rule Set 2.1).
  • Regulatory Audit Readiness: Translating regulatory frameworks into technical controls for SOC 2 Type II compliance, ISO/IEC 27001 certification, and CIS Benchmarks (Level 1 / Level 2).
  • Non-Functional Requirements (NFR) Architecture: Establishing architectural security baselines across cloud-native application stacks to ensure secure deployment and continuous compliance across enterprise microservices.

Live Threat Radar

OpenCanary Sensor

Real-time attack telemetry intercepted by an isolated decoy honeypot sensor running on this server. Demonstrates why Zero Trust edge shielding (dropping all inbound WAN ports via Cloudflare Tunnels) is essential for origin protection.

SENSOR: ACTIVE (6 DECOYS) POLLING EVERY 20s
Time Origin Target Decoy Attempted Payload / Credentials MITRE Technique
Loading live telemetry stream...