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AI/ML Engineer building intelligent systems
Experiences Skills

experience.log

commit 1111abc | 2025-2026

AI Engineer

@ Moneydolly - AI Agent (Finn)

Built Finn, a multi-autonomous AI Agent for Moneydolly's fundraising platform.Finn leverages MCP server for tools, enabling users to create fundraising campaigns instantly, send messages, escalate...

commit 2222abc | 2026

AI Engineer

@ Cooks Florist - AI Phone Assistant (Kayla)

Designed Kayla, a SOL-style AI voice agent that answers and places calls, sends texts/emails, and guides customers through Cook's Florist orders.I architected an API + MCP toolchain for knowledge,...

commit 3333abc | 2024 to 2025

AI Engineer

@ Team Floral

AI Assistant Development & Website Creation for TeamFloralI designed and developed Rosie, an advanced AI assistant for TeamFloral, that automates report generation, internet searching, and web...

commit 4444abc | 2023 to 2024

AI Engineer

@ New Age Media Group

Developed an advanced audio matching system to identify commercial audio within radio station streams, ensuring accurate playback timing. Implemented a comprehensive Text-to-Speech (TTS) function...

commit 5555abc | 2021 to 2023

AI Product Engineer

@ Zero Company Marketing Performance, USA

Built an AI Chief Marketing Officer (AICMO) that provides different kinds of marketing tools, from building a marketing plan to creating landing page to ad copies with one push of a button.

commit 6666abc | 2021 to 2023

Senior Machine Learning Engineer

@ Boredhumans.com, USA

Created bunch of AI web applications for boredhumans.com. The website was originally created for people who want to try AI Applications without coding or hassle. Trained models including CV,...

commit 7777abc | 2019 to 2022

Chief Technology Officer / Machine Learning Engineer

@ MetrocityAI Start Up, Philippines

Built Hiring AI that reads CVs using OCR and NLP to compare with Job Descriptions. Also added an Audio-to-Text feature to analyze applicant responses in interviews.

commit 8888abc | 2021 to 2022

Machine Learning Developer

@ Thobias.com

Developed Photoshoot Selection using Pose Estimation and Learning to Rank. Built a Raw Video to Production pipeline using GANs and Pose Estimation. Also developed Deep Fashion for...

commit 9999abc | 2020 to 2021

Data Scientist / Machine Learning Engineer

@ Job Tensor UK / DE

Fine-tuned transformer models to generate occupations from job posts. Used NLP to extract company locations from job descriptions.

commit 101110abc | 2020 to 2021

Software Developer / Machine Learning Engineer

@ Monster Group UK LTD., UK

Created a web app to detect invoice discrepancies using AI.

commit 111221abc | 2019 to 2020

Software Developer / Machine Learning Engineer

@ BlickLabor Start Up, Germany

Built an ML software for automated checkout detecting grocery products in supermarkets.

commit 121332abc | 2017 to 2020

Content Automation Specialist / RPA Developer

@ Reed Elsevier Share Services, PH

Built process automation, including 'Nimmer QC Automation' which reduced processing from 1 month to 3 days.

skills.json

Python

MediaPipe CV OpenCV Tensorflow Pytorch MXNet NLTK Spacy Gensim HuggingFace Numpy Pandas Flask Boto3 (AWS) Matplotlib Requests BeautifulSoup RestAPI Web Scraping PyQT Tkinter Pymongo Scrapy LangChain LangGraph LlamaIndex Pydantic Scikit-learn Keras FastAPI Streamlit Gradio

Machine Learning

Deepseek Gemma OpenAI (API) OpenAI Function Calling OpenAI Tools Calling Llama Llama2 GPT-J GPT2 GPT3 GPT4 LORA VICUNA FLAN-T5 Text Embeddings/Vectors Sentence Transformers Semantic/Document Search Stablediffusion Facial Recognition Pose Estimation Image Recognition / Classification Object Detection YoloV3/V4 EfficientNet DeepLabV3 Facebook Detectron Transformers HuggingFace Attention Models Language Translation Models HuggingFace Neural Networks Computer Vision OpenCV GAN (General Adverial Network) BigGan StyleGAN Reinforcement Learning OpenAI RL Environment GYM OpenAI Dall-E OpenAI Clip Deep Tagging Deep Fashion Claude / Anthropic API Claude Code Claude AI Agents MCP Server OpenClaw Text to Speech (TTS) Speech to Text (STT) Whisper Twilio VAPI Gemini Mistral CrewAI AutoGen RAG (Retrieval Augmented Generation) Vector Databases (Pinecone, ChromaDB, Weaviate) MLOps MLflow Prompt Engineering Fine-tuning LLMs ONNX Agentic AI JAX Google Vertex AI Amazon SageMaker Azure Machine Learning IBM Watson Studio Comet ML Weights & Biases (W&B) DVC (Data Version Control) Kubeflow Apache Airflow Dagster Ray Dask OpenAI Swarm Microsoft Semantic Kernel Haystack Rasa Llama 3 Claude 3.5 Sonnet Cohere API Qwen Phi-3 SDXL (Stable Diffusion XL) ControlNet Flux AI ComfyUI Diffusers (HuggingFace) TensorRT OpenVINO BentoML Triton Inference Server vLLM Text Generation Inference (TGI) Ollama OpenRouter Groq API Together AI Replicate RunPod RLHF (Reinforcement Learning from Human Feedback) DPO (Direct Preference Optimization) QLoRA PEFT (Parameter-Efficient Fine-Tuning) DeepSpeed llama.cpp Multimodal AI Vision Language Models (VLMs) LLaVA GPT-4 Vision LangSmith

Cloud

AWS (AMAZON WEB SERVICES) AWS Lambda AWS Transcribe AWS Rekognition AWS Sagemaker AWS Polly AWS Bedrock AWS Route 53 AWS S3 AWS Elastic Beanstalk AWS EC2 AWS Codepipeline AWS Lightsail AWS API Gateway GCP (GOOGLE CLOUD PLATFORM) GCP Cloud Functions GCP Cloud Storage GCP Charts GCP APIs Supabase Supabase Edge Function

Programming Languages

ReactJS Typscript Deno NodeJS Jquery Javascript Javascript ES6 HTML CSS Bootstrap MySql Docker Git Ajax GraphQL Shopify Liquid MongoDB PostgresSQL VB.NET Java C++

projects/

rolepleyai

./Rolepley.ai

LLM / NLP / ML Engineer

AI chatbot platform offering personalized, judgment-free conversations with AI companions. Offers both free and subscription tiers.

articulacyapp

./Articulacy.app

Machine Learning Engineer

Web app that improves users’ communication, vocabulary, and argumentation skills.

equalai

./Equal.AI

Machine Learning Engineer

Job Ads website using GPT-3 to neutralize gender bias. Computes applicant-job similarity using Transformer embeddings and vector databases.

policeauction-chatbot

./PoliceAuction Chatbot

Machine Learning Engineer

Chatbot for PoliceAuctions.com using GPT-3 prompt engineering with memory and embeddings.

openai-clip-and-biggan-music-video

./OpenAI Clip and BigGAN Music Video

Machine Learning Developer

Project for Yannic Kilcher using OpenAI Clip and BigGAN to auto-generate music videos based on lyrics.

reddit-automation

./Reddit Automation

Machine Learning Developer

One-click app that scrapes Reddit posts, turns them into creative videos, and auto-uploads to YouTube.

machine-learning-with-only-numpy-(mnist-dataset)

./Machine Learning with only NUMPY (MNIST DATASET)

Machine Learning Developer

Trained an ML model on MNIST from scratch using only Numpy without any ML frameworks.

about.md

jayr@portfolio:~$ whoami
JayR Castro | AI/ML Engineer
jayr@portfolio:~$ cat interests.txt
Dad / Bassist / Musician / Woodworker / Luthier / Cobbler / Cat Lover
jayr@portfolio:~$ cat education.txt
BS Computer Engineering - Collegio De Montalban (2014)

contact.sh

jayrcastro.py@gmail.com www.linkedin.com/in/jayrcastro/ jayrcastropy