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Nelkit Chavez
Nelkit ChavezSoftware/ML/AI Engineer

Building AI products that actually ship.

Seven years shipping production mobile apps. Now building products that think, with ML, LLMs, and the instinct to ship that only comes from doing it for real._

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Explore the traditional portfolio

02 Featured Projects.

12 projects · ordered by recency
Sydney Liveability AI
01 · ai

Sydney Liveability AI

Multi-agent LLM web app analysing Sydney liveability by suburb. Combined Reddit sentiment analysis using DeBERTa and GoEmotions, OpenStreetMap, ABS, and TfNSW transport data into a unified assistant. Led the full architecture for a team of five. Won the Best AI LLM Project Award at UTS 2026.

Python · FastAPI · DeBERTa · NextJS · ReactJS · LangChain · CrewAI · ChromaDB · PostgreSQL · RAG · OpenStreetMap · Reddit API
Australia Liveability Gap
02 · ai

Australia Liveability Gap

Interactive data narrative examining the growing tension between housing affordability and public transport access across Australia's 8 capital cities from 2020 to 2025. Built for policy makers using real data from ABS and BITRE.

Python · Streamlit · Plotly · ABS data · BITRE data
NLP Text Analysis & Narrative
03 · ai

NLP Text Analysis & Narrative

Exploratory text analysis and data storytelling project combining topic modelling, sentiment analysis, and visualisation into a cohesive markdown narrative report. Graded H with 90/100.

Python · NLTK · Pandas · Matplotlib · Topic Modelling · Sentiment Analysis
Image Captioning with CNN + LSTM
04 · ai

Image Captioning with CNN + LSTM

PyTorch image captioning model using a CNN encoder and LSTM decoder, trained and evaluated on the VizWiz dataset (7,750 images from people who are blind). Two architectures designed and compared using BLEU-1/2/3/4 metrics.

Python · PyTorch · CNN · LSTM · BLEU
Food101 Transfer Learning
05 · ai

Food101 Transfer Learning

Comparative study of CNN transfer learning strategies on 101-class food image classification. Covered head replacement, frozen backbone training, and layer-by-layer fine-tuning across GoogLeNet, MobileNetV3, and ResNet50.

Python · PyTorch · GoogLeNet · MobileNetV3 · ResNet50
Neural Networks from Scratch
06 · ai

Neural Networks from Scratch

Implemented a Perceptron with forward and backpropagation using only NumPy. Trained a custom neural network on the Japanese MNIST dataset (70k Hiragana images, 10 classes) achieving over 80% accuracy using PyTorch.

Python · NumPy · PyTorch
Crypto Price Prediction Dashboard
07 · ai

Crypto Price Prediction Dashboard

End-to-end ML data product predicting next-day high prices for Bitcoin, Ethereum, XRP, and Solana. Individually responsible for the Ethereum prediction model and the data pipeline and news feed powered by the CoinGecko API. Predictions served via FastAPI and visualised in a Streamlit dashboard.

Python · scikit-learn · FastAPI · Streamlit · CoinGecko API
Sydney Rain Prediction API
08 · ai

Sydney Rain Prediction API

Machine learning service predicting rain in 7 days (binary classification) and cumulative precipitation in 3 days (regression) for Sydney, using Open-Meteo historical data. Deployed as a containerised REST API on Render with Docker.

Python · scikit-learn · FastAPI · Docker · Render · Open-Meteo API
Agromapas Cartographic Viewer
09 · gis

Agromapas Cartographic Viewer

Interactive geospatial platform developed for the Ministry of Agriculture of Honduras, giving users access to maps and data about agri-food sector production across the country. Built end-to-end from backend to frontend.

Python · OpenLayers · Django · ReactJS · GeoServer · Pandas · GeoPandas · PostGIS
Ryte 2.0
10 · mobile

Ryte 2.0

Led the complete rebuild of the Ryte iOS application in Swift 5, achieving a 90% reduction in client-reported bugs and a 40% improvement in performance. Included a full redesign of UX and integration of real-time features.

Swift · SwiftUI · MapBox
Classroom Locstatt
11 · mobile

Classroom Locstatt

iOS application built from scratch in Swift 5, from mockup design in Sketch to App Store release. Used by 20+ enterprise clients to train employees in safety and security practices.

Swift · UIKit · Realm DB
NKAlert Pod Library
12 · mobile

NKAlert Pod Library

Open source Swift UI framework published on CocoaPods, providing a customisable alternative to UIAlertController for displaying messages and custom alerts in iOS applications.

Swift · UIKit · CocoaPods

03 Tech stack.

45 tools · grouped by domain
Pandasscikit-learnNumPyPyTorchGoogLeNetMobileNetV3ResNet50CNNLSTMBLEUNLTKMatplotlibTopic ModellingSentiment AnalysisPlotlyDeBERTaLangChainCrewAIChromaDBRAG

04 Career.

10 years of receipts
PeriodRoleOrganisationStatus
Oct 2022 – PresentFreelance Web & GIS ConsultantSelf-employedSelf-employedCurrent
Oct 2021 – Sep 2022Senior Mobile EngineerSumadiSumadiPast
May 2019 – Oct 2021Senior iOS DeveloperRyteRytePast
Apr 2017 – May 2019Mobile DeveloperLocstattLocstattPast
Jan 2016 – Apr 2017Mobile & Web DeveloperCrayon StarCrayon StarPast

05 Education.

Plus scholarships
PeriodDegreeInstitutionStatus
2025 - PresentMaster of Data Science and InnovationSpecialising in machine learning, NLP, computer vision, and LLM-powered applications. Hands-on projects across the full AI stack from model training to production deployment.University of Technology Sydney (UTS)In Progress
2025 – PresentHonduFuturo ScholarSelected from 100+ applicants as a HonduFuturo scholar, a programme that identifies and funds high-achieving Honduran professionals to pursue postgraduate studies at top universities abroad.HonduFuturoIn Progress
2011 - 2015Information Technology and Communications in EngineeringFoundation in computer science, software architecture, algorithms, and mobile application development. Graduated Summa Cum Laude.Universidad Politecnica de IngenieriaCompleted

06 Recent writing.

notes on building, mobile & ML
Available 2026

Let's build something that ships.

Open to AI engineering and full-stack roles where production instincts matter. Remote, hybrid, or Sydney in person.

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