Hybrid RAG and Knowledge Graph Systems for Explainable AI
J. Hernandez · Manuscript in preparation
Exploring the synergy between vector-based retrieval and structured knowledge representation for explainable, context-aware AI systems.
Emphasizing the intersection of ICT infrastructure, public-sector digital transformation, AI-enabled systems, and education to drive institutional excellence.

My professional journey has evolved from a foundation in web development and IT education to leading public-sector ICT transformation and cloud systems architecture. As an Information Technology Officer, I bridge the gap between building resilient digital infrastructures and the strategic frameworks that govern them.
Currently pursuing a Master's degree in Policy Competency in ICT Convergence at Handong Global University, my research trajectory focuses on how institutions can leverage AI-enabled systems and digital government policies to create sustainable, human-centered ecosystems.
Outside of my professional and academic pursuits, I remain a lifelong student of technology, constantly exploring the latest in cloud infrastructure and cybersecurity.
Researching hybrid retrieval methods that combine semantic search with graph-based reasoning for more explainable and context-aware AI systems.
Investigating policy frameworks and technical implementations that drive efficient, transparent, and inclusive digital public services.
Developing data-driven models for mapping and analyzing the evolving landscape of workforce skills and occupational requirements.
Researching scalable, secure, and cost-effective cloud-native architectures tailored for government and institutional operations.
Exploring immersive technologies and data analytics to enhance educational experiences and understand learner behavior.
J. Hernandez · Manuscript in preparation
Exploring the synergy between vector-based retrieval and structured knowledge representation for explainable, context-aware AI systems.
J. Hernandez · Working Paper
An analysis of the policy and technical requirements for AI integration in public-sector institutions.
J. Hernandez · Case study
A review of modern cloud-native architectures for government service delivery in developing nations.
A selection of research projects, institutional implementations, and technical solutions.

A Hybrid RAG and knowledge graph system for occupation-skills mapping.

A framework for assessing and improving AI readiness in public-sector institutions.

Real-time tabulation systems for major international and local pageants and festivals.
A track record of technical leadership and institutional contribution across the public sector, education, and software development.
Leading ICT initiatives and digital transformation projects within the national vocational education and training authority.
Representing and coaching the national team for international web development competitions.
Provided technical expertise for institutional software and hardware systems.
Led the development of high-impact web systems and tabulation platforms for various organizations.
Delivered technical instruction and supported campus-wide ICT operations.
Gained early professional experience in software development and industry practices.
Expertise in managing cloud services, system architecture, and public-sector ICT infrastructure.
Full-stack development with a focus on scalable architectures and secure data exchange.
Design and management of secure, resilient campus and enterprise networks.
Designing and optimizing data storage solutions for high-performance applications.
Integrating artificial intelligence and data analytics into institutional workflows.
Professional education and mentoring in computer science and ICT competencies.
Focusing on the intersection of technology policy and digital transformation in the context of ICT convergence.
Comprehensive foundation in software engineering, networking, and systems administration.
AWS Certified Cloud Practitioner
Amazon Web Services
Validation of overall understanding of the AWS Cloud platform.
Using Python to Access Web Data
University of Michigan (Coursera)
Advanced Python programming for web scraping and API interaction.
ThriveDX Cybersecurity Bootcamp
ThriveDX
Intensive training in network security, threat detection, and incident response.
2nd Place - Unity Game Jam 2014
Unity Technologies
Recognized for innovative game mechanics and design in a competitive game development marathon.
Gold Medalist - Web Design Competition
National Skills Competition
Awarded for excellence in front-end development, UI/UX design, and standards-compliant coding.
"My mission is to facilitate the seamless convergence of emerging technologies within institutional frameworks, ensuring that technical innovation serves as a catalyst for educational excellence and social progress."
For academic collaboration, research discussion, technology consulting, or professional inquiries, feel free to contact me.
Open to research collaboration, graduate and academic discussion, and public-sector technology consulting.