Available for Consulting

Marc Castro
Tech Consultant &
Lead AI Engineer

I design and ship enterprise AI systems — from LLM-powered document pipelines and production RAG platforms to MLOps frameworks and data analytics dashboards.
MS Data Science · Published researcher · 4× hackathon medalist.

Marc Castro

Researcher turned
production AI engineer

I started doing AI and data science research during my undergraduate years at UP Diliman in 2018, then continued as a research associate at the Philippine Genome Center, co-authoring papers on SARS-CoV-2 genomic surveillance and building data pipelines for national genomic analysis. That foundation in rigorous, reproducible science shaped how I approach engineering problems today.

From there I moved into industry — data science at AIA (Asia-Pacific's largest insurance group), then managing AI initiatives at TDCX AI in Singapore, and now leading enterprise LLM development at Intelligent AI Solutions, a UK-based consultancy. Along the way I've won 4 national and international hackathons, trained corporate and government teams on AI, and consulted for the premier Philippine Science High School System on data-driven student outcomes.

I’m most energized by the friction between 'it works in a notebook' and 'it runs reliably at scale.' My focus is on the invisible infrastructure that makes AI viable: async pipelines, rigorous evaluation frameworks, rate-limiting, and drift detection. I don’t just build models; I build the architectural systems that move AI out of the lab and into the core of how modern enterprises actually work.

7+ Years in AI/DS
30+ Production-Level Projects
Hackathon wins

Experience

From genomics research to enterprise LLMs — a career built on turning complex data problems into reliable systems.

Lead AI Engineer · Tech Consultant

Intelligent AI Solutions — UK-based Enterprise AI Consultancy

Sep 2024 → Present

  • Led end-to-end development of enterprise LLM solutions: a media monitoring system for large-scale bias detection, and a RAG knowledge management system for a global travel agency — driving operational efficiency and data-driven decision making.
  • Spearheaded AI research and production deployment: advanced RAG architectures, fine-tuning methodologies, scalable LLM implementations, agentic chatbot solutions, and automated workflow systems across multiple industries.

Senior Data Science Consultant

PSHS – Knowledge Innovation Division

Sep 2024 → Present

  • Spearheading data science initiatives for the Philippine Science High School — student performance management and data-driven curriculum enhancement for targeted academic interventions.

Data Science Instructor & Mentor

CIIT & Eskwelabs

Nov 2023 → Present

  • Instructor and mentor for workshops, bootcamps, hackathons, and trainings focused on AI, No-Code AI, and Data Science — clients include government organisations, corporate executives, and professionals from diverse backgrounds.

Global Data Science Manager

TDCX AI — Singapore

Aug 2023 → Sep 2024

  • Developed a Forecasting Model streamlining Workforce Management tasks by integrating predictive analytics and simulation capabilities in a user-friendly interface.
  • Built an LLM-powered web application generating realistic simulation scenarios for agent training — reduced time to proficiency by at least 20% and delivered near-real-life customer conversation experiences during onboarding.

Data Scientist

AIA Digital+ — Asia-Pacific

Aug 2022 → Aug 2023

  • Designed and implemented an end-to-end data pipeline for Next Best Action (NBA) campaigns — reduced required FTE for NBA model development by up to 95%.
  • Developed a comprehensive Fraud Detection solution to automate claim request approvals — projected 25% reduction in processing times, enhancing operational efficiency and customer satisfaction.

Senior Research Associate — Analytics & Visualization

Philippine Genome Center

Sep 2020 → Mar 2021

  • Reduced reporting times for genomic analysis of SARS-CoV-2 samples through custom data pipelines and analytical modules.
  • Co-authored multiple peer-reviewed papers on emerging SARS-CoV-2 variants within the Philippines, published in international journals.

Education

Master of Science in Data Science

Asian Institute of Management

Mar 2021 – Jun 2022 · Graduated 2022

BS Applied Physics — Instrumentation

University of the Philippines – Diliman

Aug 2015 – Jun 2020 · Graduated 2020

Tools & technologies

Full-stack AI Engineering — from model integration to deployment infrastructure.

LLMs & Generative AI

OpenAI GPT-4o / o1 Anthropic Claude Google Gemini Azure OpenAI Ollama · Local LLMs Stable Diffusion Hugging Face Fine-tuning · LoRA Prompt Engineering

RAG & Information Retrieval

RAG Architectures Agentic RAG ChromaDB Azure AI Search Semantic · Hybrid Search Cohere Rerank LlamaIndex LangChain OCR · Document AI

ML & Data Science

scikit-learn PyTorch XGBoost · LightGBM Time Series Forecasting Computer Vision NLP · Text Processing Statistical Analysis Pandas · NumPy

Backend & APIs

Python FastAPI Flask · Quart REST · Async APIs Pydantic Laravel Node.js

Agentic Dev & AI Tooling

Claude Code Cursor GitHub Copilot Agentic Workflows Multi-agent Systems Tool Use · Function Calling MCP Servers

Automation & No-Code

n8n Zapier No-Code AI Workflow Automation API Integration

Databases & Storage

PostgreSQL · MySQL DuckDB CosmosDB SQLite ChromaDB · Vector DBs Redis Azure Blob Storage

MLOps & Pipelines

MLflow DVC Evidently AI Papermill Docker CI/CD · GitHub Actions Weights & Biases

Cloud & Infrastructure

Azure · Azure OpenAI Azure AI Foundry Azure Container Apps GCP · Vertex AI AWS Azure AD · RBAC Bicep · IaC

Analytics & Visualisation

Streamlit Power BI · Tableau Plotly · Matplotlib Jupyter NetworkX SQL Analytics No-Code AI

9 production ML/AI projects

Each project below is a bespoke enterprise solution. Since these involve proprietary IP, I’ve shared curated logic fragments that showcase my custom engineering—solving for things like drift and high-throughput orchestration. These snippets highlight the 'why' behind the architecture. I am happy to discuss the broader technical challenges of these projects in a 1-on-1 setting.

Awards & Publications

🏆 Hackathon Record

🥇 Champion

[NATL.] ICSC Hack-A-Street 2025

Won a 2-day offline hackathon against 13 data-savvy teams across the Philippines. Built a gravity-based model to identify optimal bike rack locations — same approach retailers use for franchise site selection.

🥇 Champion

[NATL.] DOH-DAP Hack4Health 2024

Emerged champion in a 3-day face-to-face hackathon against 100+ teams. Developed an all-in-one fraud detection platform merging DOH and DAP technological capabilities.

🥈 2nd Place

[INTL.] UN Big Data Hackathon 2023 — Youth Track

Placed 2nd among 122 teams worldwide. Created a solution addressing UN SDG goals. Also awarded Best Youth Team in the Asian region.

🥉 3rd Place

[NATL.] USHER Hackathon 2022

Awarded 3rd place for developing an ML pipeline interpreting early warning signals of building damage.

📖 Peer-Reviewed Publications

Detection and genome sequencing of SARS-CoV-2 belonging to the B.1.1.7 lineage in the Philippines. doi: 10.1128/MRA.00219-21 ↗
Genome sequencing and analysis of an emergent SARS-CoV-2 variant characterised by multiple spike protein mutations from Central Visayas, Philippines. doi: 10.1101/2021.03.03.21252812 ↗
A directed minimum connected dominating set for protein-protein interaction networks. isbn: 9780367814656

Speaking & Training

Delivering AI education to government agencies, universities, and corporate teams across the Philippines and Southeast Asia.

🏛 Government

AI Technology Government Trainings

Department of Information & Communication Technology · ICT Literacy and Competency Development Bureau

Aug 2025 · Nov 2025

BANT.AI: Revolutionising Fraud Detection with Unified Health Data

Department of Health · 20th National Health Research Forum for Action

Oct 2024

🎓 Universities & Colleges

The Art of Data Storytelling and Data Visualization

University of Santo Tomas — Dept. of Computer Science · HORAIZON

Mar 2023

Breaking Bias in AI

Far Eastern University Institute of Technology · FEU Tech ACM

Jun 2023

Breaking into Tech Consulting Within 5 Years

Asian Institute of Management - Career Services Office

Mar 2025

🏢 Corporate Trainings

Generative AI & Low Code for Corporate Teams

Ayala Group — Various organisations from the Ayala Group of Companies

Jun 2025 – Sep 2025

N8N: Automation Tools for E-Commerce

Carousell Singapore · IT, Marketing & HR teams

Aug 2025

Let's build something together

I'm open to senior ML engineering roles, technical consulting engagements, speaking invitations, and research collaborations in LLMs, RAG architectures, and production AI systems.