Full Stack & ML Engineer who builds end-to-end products - from React frontends and Django backends to production ML models. Experienced in shipping scalable systems, real-time pipelines, and data-driven applications.
class FullStackMLEngineer: def __init__(self): self.name = "Richard" self.stack = { "frontend": ["React", "TypeScript"], "backend": ["Django", "FastAPI"], "ml": ["PyTorch", "scikit-learn"], "devops": ["Docker", "CI/CD"] } def build(self): return "End-to-end ML products"

Interactive Streamlit app for real-time stock analysis, forecasting, and visualization. Powered by Yahoo Finance, technical indicators, and machine learning models (ARIMA, SARIMA, Random Forest, XGBoost). Key Features: Real-time data updates • Technical indicators (RSI, MACD, Bollinger Bands, etc.) • Forecasting & ML predictions •

A web-based platform that connects users with skilled professionals such as mechanics, plumbers, and electricians. Users can post tasks with images and descriptions, while professionals can bid, communicate, and manage work directly through the platform. Built with Node.js, Express.js, MongoDB, EJS, and Passport.js for authentication.

A secure, gesture-driven two-factor authentication (2FA) framework combining motion detection, facial verification, and dynamic hand gesture recognition. Built with Python, YOLOv8, ArcFace, RetinaFace, and MediaPipe, it introduces a transformer-based gesture validation module and anti-repetition filtering for robust spoofing resistance.

A Flask-based REST API for facial recognition tasks including face enrollment, search, similarity matching, and verification. Designed for attendance management and identity verification systems. Built with Python, Flask, and face recognition libraries for accurate and efficient face detection and comparison.
$ whoami
Hi, I'm Gratus Richard Anthuvan Rosario - a Full Stack & ML Engineer who builds end-to-end products, from React frontends to Django backends to production ML models.
$ cat expertise.txt
Frontend: React, TypeScript, Next.js
Backend: Django, FastAPI, PostgreSQL
ML/AI: PyTorch, scikit-learn, MLOps
DevOps: Docker, CI/CD, AWS, GCP
$ location
Based in Nottingham, UK. MSc AI @ University of Nottingham.
$ status
Open to Full Stack Engineer, ML Engineer, and Software Engineer roles building impactful products.
Building Software Products and ML Systems that scale.
Open to contract work and full-time roles.