ROHAN // WINDOWS INFRASTRUCTURE
SYSTEM ONLINE
Microsoft 365 · Windows · Security · Automation

Rohan
Das.

Windows Infrastructure Engineer and Microsoft 365 Administrator focused on enterprise infrastructure, security engineering, PowerShell automation, monitoring, auditing, migration, and practical IT tooling.

PS C:\Users\Rohan> Get-ProfessionalProfile
Windows Server AD · DNS · IIS · Hyper-V
Microsoft 365 Entra · Exchange · Teams · Intune
Automation PowerShell · Python · APIs
01 // Profile

About the Engineer

Building reliable infrastructure first, then making it secure, observable, and easier to operate.

I work across Windows Server infrastructure, Microsoft 365, Active Directory, networking, virtualization, web hosting, databases, endpoint security, backup and recovery, and enterprise troubleshooting.


My current work increasingly combines administration with engineering: building PowerShell tooling, infrastructure monitoring, DNS migration utilities, audit frameworks, evidence collection, automated reporting, and reusable operational workflows.


The goal is simple: reduce manual effort, improve operational visibility, strengthen security, and make infrastructure easier to maintain.

Windows PowerShell read-only
PS C:\> Get-Summary
Role = "Windows Infrastructure Engineer"
Cloud = "Microsoft 365 / Entra / Exchange"
Automation = "PowerShell / Python / Graph API"
Security = "Endpoint / Network / Identity / Hardening"
Audit = "Evidence / Controls / Compliance / Reporting"
Status = "BUILDING"
02 // Capabilities

Technical Capability Map

Microsoft 365

Exchange OnlineTeamsSharePoint OneDriveEntra IDIntune PurviewGraph APIConditional Access Exchange HybridTenant MigrationLicensing Mail FlowSPFDKIMDMARC

Windows Infrastructure

Server 2016Server 2019Server 2022 Server 2025AD DSGPO DNSDHCPAD CSAD FS IISWDSRDPEvent Logs HardeningPatch Management

Security Engineering

DefenderSophosCrowdStrike WazuhMFAEDR Threat HuntingIncident ResponseIOC Analysis Web Shell DetectionRDP HardeningLeast Privilege Vulnerability Assessment

Networking

TCP/IPRoutingSwitching VLANVPNCisco Catalyst Cisco ISRFortiGateWireshark IDS/IPSDNS SecurityMail Flow

Cloud / Edge Security

CloudflareCDNWAF Reverse ProxySSL/TLSDNS F5 BIG-IPLTMAWAF Fundamentals

Virtualization / DR

Hyper-VProxmox VEVMware Workstation VirtualBoxVM MigrationBackup / Restore AcronisDisaster Recovery

Automation / Development

PowerShellPythonBash REST APIGraph APIScheduled Tasks GitGitHubNode.js ReactPHPLaravel.NET

Databases / Web

SQL ServerMySQLMariaDB PostgreSQLSQLiteIIS ApacheTomcatPlesk win-acmeOpenSSL

Monitoring / Observability

CPU MonitoringMemory MonitoringDisk Monitoring Network MonitoringTCP ConnectionsService Monitoring IIS MonitoringSQL MonitoringEvent Logs PrometheusWindows Exporter
03 // Projects

Selected Engineering Work

Projects focused on solving practical infrastructure, monitoring, migration, security, and audit problems.

01 · Audit Engineering

DLSAR Infrastructure Audit Framework

Reusable audit framework combining PowerShell and Python for evidence collection, security assessment, configurable controls, SHA-256 evidence manifests, traceability, and automated report generation.

PowerShellPythonCompliance Evidence CollectionAudit Automation
02 · Infrastructure Tooling

Windows DNS Migration Toolkit

PowerShell-based toolkit designed to simplify Windows DNS migration and administration, including zone export, record collection, configuration analysis, migration assistance, and evidence collection.

PowerShellDNSWindows Server MigrationAutomation
03 · Monitoring

Enterprise Server Monitoring Platform

Cross-platform monitoring concept using React, Node.js, PowerShell, SQLite, and Bash for CPU, memory, disk, network, TCP connections, Windows services, IIS, event logs, agents, configuration, and dashboard reporting.

ReactNode.jsPowerShell SQLiteBash
04 · Security Automation

Windows Server Security Audit Toolkit

PowerShell-based auditing solution for firewall configuration, SMB exposure, antivirus detection, RDP configuration, local administrator review, event logs, and executive reporting.

PowerShellSecurity AuditHardening Event LogsHTML Reporting
05 · Monitoring

Windows Server Health Dashboard

PowerShell-based health and performance dashboard covering CPU, memory, disk, user sessions, IIS, SQL Server, services, historical reporting, and alerts.

PowerShellHTMLPerformance IISSQL Server
06 · Cloud Administration

Microsoft 365 Automation Toolkit

Administration automation for user provisioning, licensing, mailbox management, Exchange reporting, Teams, SharePoint, Intune reporting, bulk operations, tenant reporting, and Microsoft Graph workflows.

PowerShellGraph APIExchange Entra IDMicrosoft 365
04 // Experience

Professional Experience

DEC 2024 — PRESENT

Windows System Administrator

CloudTechtiq Technologies · Jaipur

Windows Server administration, troubleshooting, Microsoft 365 support, infrastructure operations, security tooling, automation, monitoring, migration activities, backup and recovery, and enterprise support workflows.

05 // Education

Education

2023 — 2025

MCA — Cyber Security

JECRC University

Academic focus around cybersecurity, systems, development, and infrastructure technologies.

2020 — 2023

BCA — Information Technology

Girijananda Chowdhury University

Foundation in software, computing, networking, databases, and information technology.

2020 — 2022

Hardware & Network Engineering

NINT

Hands-on foundations in system administration, networking, and Active Directory.

06 // Credentials

Certifications

Microsoft 365 Administrator Expert (MS-102)Microsoft
Certified Ethical Hacker (CEH Master)EC-Council
Certified Network Defender (CND)EC-Council
Plesk Obsidian ProfessionalPlesk
Acronis Cloud Tech AssociateAcronis
Additional Security & Administration TrainingMultiple platforms
07 // Current Build

What I'm Building Next

From administration to infrastructure engineering

The current direction is to build deeper automation around Windows, Microsoft 365, security, observability, cloud networking, and audit workflows. The emphasis is on reusable tools rather than one-off scripts.

Advanced PowerShell Automation
Microsoft Graph & Microsoft 365 Security
Cloudflare / WAF / Edge Security
F5 BIG-IP / LTM / AWAF
Infrastructure as Code
Vulnerability & Compliance Automation