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NexAI Principal Consultant

Karen Rose
Castaneda

Senior SEO, GEO & AI-Search Optimization Specialist

A results-driven SEO consultant with 18+ years of global and Korea-based experience, specializing in AI-driven search visibility, technical SEO, GEO (Generative Engine Optimization), and information security. Bridging cultural and technical divides across Korean, Southeast Asian, and global markets.

📍 Seoul, South Korea🌐 Available Globally🗣️ EN · FIL · KO18+ yrs Experience
Contact Karen
KRC
🔍

SEO / GEO / AI-Search

  • AI-Search & GEO Optimization
  • Google AI Overview & LLM Strategy
  • Global & Korean SEO
  • Technical SEO & Site Audits
  • Structured Data (Schema Markup)
  • Content Architecture & Keyword Strategy
🔒

Information Security

  • Vulnerability Assessment (VAPT)
  • Identity & Access Management (IAM)
  • API Security & Performance Testing
  • Risk Analysis & Remediation
  • Fintech Domain (PayMaya 3yrs)
📊

Business Analysis & QA

  • Full SDLC Management
  • Requirements Gathering & Analysis
  • Test Case & User Story Design
  • Manual & Automated Testing
  • API, Regression & Integration Testing
SEO / GEO / AI-Search Optimization97%
Technical SEO & Site Audits95%
Structured Data & Schema Markup90%
Content Architecture & Strategy88%
Information Security (VAPT)82%
Business Analysis & QA85%
Apr 2026 – Present

SEO, GEO & Paid Ads Consultant

Medipact Korea · Seoul, South Korea

  • Led SEO, GEO, and Google Ads strategy to improve visibility across organic search, AI Overviews, and paid channels.
  • Created and optimized SEO-focused blog content to strengthen topical authority.
  • Implemented on-page and technical SEO improvements (metadata, internal linking, structured data, indexation).
Feb 2026 – Present

SEO & GEO Consultant (Freelance / Contract)

Confidential (Israel, US & Australia) · Remote

  • Designed and executed SEO and GEO strategies tailored for AI-powered search environments.
  • Enhanced website content and structure to improve visibility in AI Overviews, LLM-generated results, and answer engines.
  • Performed in-depth technical SEO audits covering crawlability, indexation, site architecture, and structured data.
Sep 2018 – Feb 2026

Senior SEO Consultant

Concentrix · Seoul, South Korea

  • Applied GEO and AI-search methodologies to strengthen brand presence in Google AI Overview and LLM-generated results.
  • Developed and executed comprehensive SEO strategies for Korean and international markets.
  • Optimized metadata, site structure, internal linking, structured data (FAQ, Person, Product), and XML sitemaps.
  • Conducted in-depth technical SEO tasks including crawl health analysis and site performance improvements.
Aug 2017 – Dec 2017

SEO Consultant

기술경영발전연구협동조합 · Seoul, South Korea

  • Planned and executed end-to-end SEO strategies for client websites.
  • Conducted keyword research and comprehensive site audits.
2015 – 2017

Business Analyst / API Security Consultant

Da Vinci Technologies · Redcore Pty Ltd · Philippines

  • Gathered and analyzed business requirements for enterprise software projects.
  • Conducted VAPT using Kali Linux, OWASP ZAP, and Nessus.
  • Implemented SailPoint IIQ Identity Access Management configurations.
Aug 2012 – Aug 2015

Business Analyst / Quality Engineer

Smart e-Money (PayMaya) · Mandaluyong, Philippines

  • Operated across QA and Business Analysis for digital payment and e-wallet products.
  • Performed manual and automated testing (SoapUI, Selenium) — API, regression, integration, and system validation.
  • Supported full SDLC from requirements gathering to UAT sign-off.
SEMrushAhrefsGoogle Search ConsoleGoogle AnalyticsScreaming FrogLooker StudioSailPoint IIQKali LinuxOWASP ZAPNessusSoapUISeleniumXML Sitemaps

Post Graduate Studies, Information Systems

Central Queensland University

2010 · Australia

BS, Information & Communications Technology Management

De La Salle University

2005 – 2009 · Philippines

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