CALERO-TECH

MICHAEL A. CALERO / SECURITY ENGINEER

Secure systems.
Build what’s next.

I protect identities, respond to threats, and build tools that make security teams more effective. Over a decade in infrastructure. Hands-on security engineering today.

Explore my work GitHub

Based in New York · Security / Infrastructure / Automation

CERTIFIED IN THE FUNDAMENTALSCompTIA Security+CompTIA Network+Microsoft Azure Fundamentals

01 / PROJECTS

Projects & downloads.

Original applications, browser tools,
and hands-on security engineering.

CHROME EXTENSION · BETA v0.1.0

Dizlexic Reading Comfort

Explore the project & download the beta

Make web pages more comfortable to read. Choose a typeface and adjust text size, line height, letter spacing, and word spacing to suit your reading preferences.

LexendAtkinson HyperlegibleInterLocal preferences
Download beta ZIP

Desktop Chrome 106+ · Manual installation required

Applies only when you activate it on the current page. Includes an off switch to restore the original appearance. No account or analytics.

Dizlexic beta preview showing typeface, text size and spacing controls alongside a sample reading page
Local beta preview with a sample page.
How to install the Chrome beta
  1. Download the ZIP above and extract it into a folder you will keep on your computer.
  2. In desktop Chrome, enter chrome://extensions in the address bar.
  3. Turn on Developer mode, then select Load unpacked.
  4. Select the extracted folder containing manifest.json.
  5. Pin Dizlexic Reading Comfort from Chrome’s Extensions menu.
  6. Open a regular website, open the extension, choose your preferences, and select Apply to this page.

Before you try it

This is a development beta, not a Chrome Web Store release. Automated checks used simulated Chrome APIs; installation and behavior in native Chrome still need manual verification. Chrome internal pages, the Web Store, PDFs, local files, and pages restricted by browser policy are unsupported.

Your preferences stay in your browser. The extension requests activeTab, scripting, and storage permissions to apply your settings on the page you activate. These are personal reading adjustments, with no guaranteed accessibility or medical benefit.

Send beta feedback ↗
SECURITY ENGINEERINGImplemented

Identity events.
Actionable intelligence.

A custom pipeline connecting OneLogin security events to Huntress SIEM, bringing identity activity into automated threat alerting.

OneLoginIDENTITY EVENTSPowerShellOAUTH2 / RESTHuntressSIEM INGESTION
PowerShellAzureRFC-5424 syslog
Inside the project

The challenge

Bring identity security events into a central detection workflow.

My contribution

Engineered a PowerShell data pipeline on Windows Server 2025 in Azure. Used OAuth2-authenticated REST API ingestion and RFC-5424 syslog forwarding to deliver OneLogin events to Huntress SIEM.

The outcome

Enabled automated identity threat alerting through the SIEM integration.

AI + SECURITY OPERATIONSBuilt · 2026

An AI assistant
for the help desk.

An internal security chatbot helping MSP technicians analyze email headers, spot spoofing, and triage SonicWall alerts.

Node.jsClaude APIHTML / CSS / JS
Inside the project

The challenge

Give Level 1 and Level 2 technicians a practical way to use AI during frequent IT and security support tasks.

My contribution

Built a browser interface and Node.js proxy to broker API requests. Added quick-tap shortcuts for common triage workflows, with no external Node.js dependencies.

Current state

Built for internal use. Microsoft Teams Tab embedding was evaluated as the next deployment step.

INDEPENDENT DEVELOPMENTCompleted

A practice space.
Built for guitarists.

A guitar learning app that brings structured lessons, chords, scales, and practice tools into one mobile experience.

React NativeRevenueCatClaude Code
Inside the project

The idea

Support beginners and experienced players with a broad set of learning and practice tools.

My contribution

Independently built the application, using Claude Code for architecture, implementation, and code review. Designed a curriculum, chord and scale libraries, tuner, metronome, tab writer, and ear training games.

Current state

Completed guitar learning application. Subscription architecture uses RevenueCat.

Explore my GitHub profile ↗
ENDPOINT SECURITYCompleted
350users migrated

A coordinated move
to Huntress.

Led a multi-environment migration from Arctic Wolf to Huntress across Windows and macOS, backed by remediation playbooks and technician training.

EDR / MDRWindows + macOSSecurity playbooks
Inside the project

My contribution

Led the migration across client environments, authored AI-assisted remediation playbooks, and mentored Level 1 technicians in endpoint hardening and alert triage.

The scope

350 users across Windows and macOS environments.

02 / EXPERIENCE

A foundation
built in the field.

From supporting critical systems to leading security response, my work connects infrastructure depth with practical defense.

EDUCATION

Computer Networking
& Security

Diploma · Anthem Institute
Manhattan, New York

AUG 2024 — PRESENT

Technical Engineer

Atlantic PC, Inc. Great Neck, NY

Lead incident response, containment, and recovery across SMB and mid-market clients. Build security telemetry integrations and strengthen Microsoft 365 identity controls.

  • Remediated compromised client environments onsite, restoring servers and cleaning affected machines to support recovery.
  • Operationalized weekly SonicWall vulnerability intelligence.
  • Authored a multi-team Incident Response Plan.
  • Implemented emergency access accounts and performed Microsoft 365 security posture reviews.
  • Restored Datto Cloud backups during ransomware and disaster recovery incidents.

JAN 2014 — AUG 2024

System Infrastructure Administrator

Judlau Contracting, Inc. Flushing, NY

Designed and supported multi-region enterprise infrastructure, spanning Cisco Meraki networking, Windows and SQL Server, virtualization, and Azure.

  • Executed ExpressRoute and Microsoft 365 tenant migrations.
  • Managed enterprise backup and recovery using Veritas NetBackup and Azure Recovery Services.

JAN 2012 — JAN 2014

Help Desk Analyst

Services for the UnderServed New York, NY

Supported Exchange, Active Directory, and VMware VDI in a mission-critical environment. Contributed to disaster recovery testing, endpoint remediation, and identity lifecycle operations.

03 / TOOLKIT

Across the security stack.

Security & identity

Incident response · Huntress SIEM · EDR / MDR · Microsoft 365 · IAM · Google Workspace · SonicWall

Infrastructure & resilience

Azure · Windows Server · Cisco Meraki · VMware · SQL Server · Datto · Veritas NetBackup

Automation & development

PowerShell · REST APIs · OAuth2 · Node.js · React Native · Claude Code · OpenAI Codex

04 / GET IN TOUCH

Let’s build
something useful.

Michael.Calero@Outlook.com LinkedIn GitHub