John Raymond Ledesma

Founded and built Portfolio.ph, a free lifelong digital portfolio platform for Filipino students and teachers — one beautiful page for research, projects, awards, and credentials that learners keep long after graduation. Designed the product end-to-end (evidence-first portfolios, privacy-by-default publishing, school directories, portfolio search, AI resume import) and shipped it with AI-assisted development on Next.js and Supabase. Live at portfolio.com.ph.

• Product Design
• Next.js
• Supabase
• AI-Assisted Development
• EdTech
• UI/UX Design

An in-development adventure RPG built with AI-assisted development workflows, featuring classic monster-battling mechanics — turn-based battles, a party system, and a faithful experience-point economy where battle EXP goes only to participants unless an EXP-share item is held. HARAYA explores how game mechanics beloved by Filipino learners can carry culturally rooted storytelling.

• Game Design
• JavaScript
• AI-Assisted Development
• Claude Code
• Systems Design

A fully offline Mac audio studio combining three AI capabilities in one tool: speech-to-text transcription (Whisper), natural text-to-speech narration (Kokoro), and AI music generation (MusicGen) — with a bundled ffmpeg pipeline for format handling. Everything runs locally: no cloud, no per-use costs, no student data leaving the machine. Built for producing narrated lessons, transcribing lectures, and scoring instructional videos.

• Python
• Whisper
• Text-to-Speech
• Music Generation
• ffmpeg
• Local-First AI

A local-first Mac application that ingests research-paper PDFs and produces grounded summaries with structured, verifiable citations — every claim traceable back to the exact passage in the source document. Built with FastAPI and PyMuPDF for extraction, SQLite for the paper library, and Claude as the analysis engine. Designed for educators and student researchers who need to digest literature quickly without losing academic rigor.

• Python
• FastAPI
• Claude API
• PDF Processing
• SQLite
• Grounded Summarization

Building LIWANAG (Filipino: “light, clarity”), a gamified learning platform for Grades 3–6 aligned to the DepEd MATATAG curriculum on the three-term block system. Students play games, read grade-level Filipino-rooted lessons, and earn badges across Science, Math, and English on any device; teachers get free downloadable print materials, lesson guides, and rubrics with no login required. Built mobile-first with a reusable game-component system.

• Game-Based Learning
• MATATAG Curriculum
• Instructional Design
• Web Development
• Elementary Education

Founder & Developer. Conceptualized and independently built a modular digital learning platform for Philippine secondary science education (Grades 7–11), deployed on Vercel. Engineered JavaScript-based lesson modules integrating LLM workflows that dynamically transform lesson content into structured instructional assets: lesson plans, slide decks, assessments, and worksheets — all aligned to the DepEd MATATAG framework. AI-assisted content pipelines reduce educator preparation time while maintaining strict pedagogical alignment.

• JavaScript
• LLM Workflows
• Curriculum Architecture
• DepEd MATATAG
• Vercel
• Instructional Design

Built a retrieval-augmented (RAG) educational assistant trained on Grade 8 Chemistry textbook content that guides students through concepts using the Socratic inquiry method. Engineered custom prompt workflows that enforce scaffolded hints and targeted questioning instead of direct answers, pushing students toward metacognitive engagement rather than answer-copying.

• RAG
• Prompt Engineering
• AI in Education
• Chemistry Education
• Socratic Method

Middle School · Public School System · USA · August 2023 – Present. Deliver rigorous Grade 8 Science instruction aligned with North Carolina state standards, consistently achieving top-tier academic growth trends within the county across multiple standardized assessment cycles. Design digital inquiry-based learning modules that maximize engagement and higher-order thinking; apply formative and summative learning analytics to close achievement gaps across performance tiers.

• Science Instruction
• NC State Standards
• Learning Analytics
• Inquiry-Based Learning
• Data-Driven Intervention

Beyond lead authorship, serve as editor and reviewer for secondary science manuscripts at REX Bookstore Publishing (RBSI): reviewing chapters for scientific accuracy, correcting content and formatting, resolving authorial queries, and completing author-review rounds to keep nationally distributed textbooks pedagogically coherent and scientifically sound.

• Editorial Review
• Science Communication
• Curriculum Alignment
• Content Accuracy

Pililla Senior High School, Department of Education · 2016 – 2023. Taught Physical Science, Earth & Life Science, and Research aligned to DepEd competencies. As Science Content Specialist, developed contextualized teaching materials, ICT-based instructional devices, and learner-centered performance tasks. Served as Grade Level Coordinator — consolidating academic reports and mentoring co-teachers in teaching and learning practices.

• DepEd Curriculum
• Materials Development
• ICT Integration
• Mentoring
• Research Instruction

University of Rizal System, Morong & Pililla campuses · 2015 – 2019. Taught Biotechnology, Earth Science, and People & Earth's Ecosystem to science and business administration students using contextualized, performance-based approaches. Mentored science-major students in content mastery, teaching strategies, and the technicalities of secondary science instruction.

• Higher Education
• Biotechnology
• Earth Science
• Student Mentoring

Pililla National High School (Junior High), Department of Education · 2013 – 2016. Taught Earth Science, Biology, Chemistry, and Physics; prepared lesson plans and instructional materials; submitted academic performance reports.

• General Science
• Lesson Planning
• Classroom Management

Selected as a Filipino Delegate to the YSEALI Regional Workshop: Empowering Educators in Southeast Asia, organized by the U.S. Embassy and StartUp Malaysia in Kuala Lumpur (2019). Represented Philippine educators in regional dialogue on educational innovation, leadership, and cross-border collaboration.

• Educational Leadership
• International Collaboration
• Policy Dialogue

Recognized as Best Oral Presenter at the World Interdisciplinary Research Conference (Lyceum of the Philippines · Bangkok, Thailand, 2019), presenting original research to an international academic audience.

• Research Presentation
• Academic Writing
• Public Speaking

Graduated Cum Laude with a Bachelor of Secondary Education, Major in Physical Sciences, from the University of Rizal System, Morong (2008–2012).

• Academic Excellence

Completed the International Training of SSG Officers and Advisers on Sustainable Development Goals (Smarter Philippines · Tagaytay City, 2017), focused on integrating the SDGs into student governance and school programs.

• Sustainable Development Goals
• Youth Development
• Program Design

Served as Student Regent of the University of Rizal System — the highest student leadership position in the university, sitting as the student representative on the URS Board of Regents and taking part in university-wide governance and policy decisions on behalf of the entire student body across all campuses.

• Governance
• Student Representation
• Policy
• Leadership

Elected President of the student council during college at the University of Rizal System (Morong), representing student interests to the administration and leading campus programs and student-welfare initiatives.

• Student Leadership
• Public Speaking
• Program Coordination
• Student Representation

Selected for the Ayala Young Leaders Congress (Ayala Foundation, Inc., 2011) — one of the Philippines' most competitive leadership programs, gathering outstanding student leaders nationwide for intensive leadership formation.

• Leadership
• Civic Engagement
• Servant Leadership

Lead Author of Science Links 8, a nationally distributed, DepEd-aligned Grade 8 Science textbook published by REX Bookstore (RBSI) and deployed across private school systems nationwide. Designed the complete structural learning framework, conceptual chapters, inquiry-based activities, and competency-aligned assessments; reviewed manuscripts and resolved authorial queries to ensure pedagogical coherence and scientific integrity.

• Curriculum Writing
• Assessment Design
• Science Education
• Editorial Review
• Inquiry-Based Learning

Built a monetized educational community of 30,000+ subscribers with 60+ high-quality instructional videos across Physics, Chemistry, Biology, and scientific research methodologies. The channel produces visually driven, accessible science content that simplifies complex concepts for secondary learners and educators across the Philippines.

• Video Production
• Science Communication
• Visual Storytelling
• Community Building