Esmeralda C. Cabrera Ventura
Articles and dossiers, paired

Project details

Every project in one place. Each has two write-ups: an article that walks the reasoning in a single sitting, and a dossier with the full technical record.

Identity & Access · Engineering dossier

Employee Identity Lifecycle Automation

A desired-state PowerShell engine for joiners, movers and leavers. 983 lines, 30 functions, one audited write path, and four lifecycle events verified 14 of 14 against a live Active Directory domain.

Status
AD path validated in lab; cloud connectors implemented
Published
September 2026
Stack
PowerShell · Active Directory · Microsoft Graph · Entra ID · Intune · Azure Virtual Desktop
Serverless · Engineering dossier

Serverless Contact Form

A contact pipeline for a static site on Amazon SES and AWS Lambda. Zero stored credentials, one IAM action, a success contract that never trusts a 200, and a full CORS incident analysis.

Status
Live in production
Published
August 2026
Stack
Amazon SES · AWS Lambda · Function URL · IAM · S3 · CloudFront
Agentic AI · Engineering dossier

Autonomous Cybersecurity Multi-Agent System

Six deployed AI services on IBM watsonx. Five specialist agents chained under a supervising orchestrator, grounded by trusted hybrid retrieval, executed as a deterministic single pass.

Status
IBM SkillsBuild capstone
Published
July 2026
Stack
IBM watsonx.ai · watsonx Orchestrate · LangGraph · Llama 3.3 70B · Vector RAG · Python
Serverless · Engineering dossier

Recruiter Verification Gateway

A serverless identity gate on AWS. Six services, one public route, a five-test tri-state policy engine proven across all 162 of its states, and signed fifteen-minute approval credentials.

Status
Live in production
Published
July 2026
Stack
AWS Lambda · API Gateway · S3 · CloudFront · IAM · CloudWatch · LinkedIn OIDC · Node.js
Full-stack · Engineering dossier

Fridge2Meal

An ingredient-first meal platform. Five orchestrated services, 16 normalized tables, weighted compatibility ranking, Keycloak identity, and a containerized runtime that starts from one command.

Status
Full-stack prototype · Computer Science capstone
Published
July 2026
Stack
React · Node.js · Express · PostgreSQL · Keycloak · Docker Compose