Justin Jonany
Machine Learning Research Engineer
About Me
Currently at Thema AI creating end-to-end pipelines, revenue models, and multi-agent systems that help investors discover their next great acquisition.
Education
University of Waterloo
BMath Data Science
Graduating June 2027
GPA
86.27%
Standing
Term Distinction (All Terms)
Clubs & Leadership
Basketball Intramurals, Volleyball Intramurals, Indonesian Student Association PR Lead, Board Game Designer
Scholarship
University of Waterloo President's Scholarship of Distinction (2023)
Experience
Machine Learning Research Engineer
Thema AI
- Engineered end-to-end data enrichment pipelines using SERP APIs, web scraping, and LLMs for 6M+ product and company data
- Lead development of AI-powered acquisition target ranker using multi-agent systems
- Performed topic modeling and dimensionality reduction (UMAP) to standardize 10M+ data points
- Developed statistical revenue prediction models with 95% confidence bounds 20% tighter than traditional providers
- Built concurrent company search engine that identifies 3x more relevant companies than OpenAI while being 4x faster and 10x cheaper
Data Science Intern
Ontario Securities Commission (OSC)
- Developed graph-based algorithm to identify 500+ suspicious trader groups among 20M+ individuals
- Engineered hybrid pipeline combining NLP, OCR, LLM, and RAG with 95% accuracy
- Led development of LLM evaluation frameworks based on academic papers
Remote Web Developer
PT Alto Sentosa
- Increased customer engagement by 30% in three months by leading design and implementation of a responsive 10+ page React web experience.
- Partnered with creative and project teams to iterate on UX flows, driving a noticeable rise in customer inquiries and conversions.
Featured Projects
Spotlight
Forward Looking Active Retrieval Generation (FLARE)
July 2024 – Oct 2024
- Developed advanced RAG architecture based on research paper, specializing in long-form text generation
- Reduced LLM hallucinations by 80% through statistical analyses
- Increased accuracy of traditional LLM PDF extraction from 91% to 97%
- Multi-input deep learning model for structuring scientific abstracts based on research paper
- 40% faster training on PubMed 200k RCT dataset with 2M sentences through optimization.
- 90% accuracy with modified Bi-LSTM with token, character, and positional embeddings.
Phylogenetic Analysis of COVID-19 Variants
Feb 2022
- Constructed phylogenetic trees from Southeast Asian SARS-CoV-2 genomes using NCBI GenBank datasets and MEGA X workflows.
- Applied the Kimura 2-parameter model with maximum likelihood inference and 1,000 bootstrap replications to validate evolutionary relationships.
- Mapped viral mutation patterns and geographic spread, revealing Vietnam's variant most similar to the Wuhan reference while Thailand diverged across eight months.
- Recognized with a Gold Award at LIVI 2022.
- Achieved a 94% F1-score on Indonesian Padang food Image classification.
- Boosted baseline accuracy by 4% after fine-tuning TensorFlow Hub's EfficientNetV2 feature extractor.
- Engineered data augmentation pipeline to stretch sixty image per class training data.
- Built a car sales forecasting system that blends classical ML models with custom neural network.
- Implemented forward/backward passes and gradient descent enitrely from sctach, without TensorFlow or PyTorch, to create a blending model.
- Achieved 7.6% MAPE—35% better than best Scikit-Learn models—using MLP/DNN architectures with ReLU/Leaky ReLU.
Coursework Snapshot
Core math, statistics, and computer science classes.
Fall 2022 · 1A
Term GPA 89.60%- CS 135 Designing Functional Programs
- MATH 135 Algebra for Honours Mathematics
- MATH 137 `Calculus` 1 for Honours Mathematics
Winter 2023 · 1B
Term GPA 86.40%- CS 136 Elementary Algorithm Design and Data Abstraction
- MATH 136 Linear Algebra 1 for Honours Mathematics
- MATH 138 Calculus 2 for Honours Mathematics
- STAT 230 Probability
Spring 2023 · 2A
Term GPA 85.00%- CS 246 Object-Oriented Software Development
- MATH 235 Linear Algebra 2 for Honours Mathematics
- MATH 237 Calculus 3 for Honours Mathematics
Winter 2024 · 2B
Term GPA 85.40%- CS 241 Foundations of Sequential Programs
- CS 245 Logic and Computation
- CS 251 Computer Organization and Design
- STAT 231 Statistics
Winter 2025 · 3A
Term GPA 84.75%- CS 240 Data Structures and Data Management
- CS 348 Introduction to Database Management
- MATH 239 Introduction to Combinatorics
- STAT 331 Applied Linear Models
Winter 2026 · 3B
Term GPA TBD- STAT 332 Sampling and Experimental Design
- STAT 341 Computational Statistics and Data Analysis
- CS 341 Algorithms
- STAT 333 Stochastic Processes 1
Beyond The Keyboard
When I am not working, you can find me sipping a cup of tea, while I watch korean dramas or hitting gym while l listen to alternative music!
Tea Enthusiast
My pantry is a rotating library of lapsang souchong, pu-erh bricks, gyokuro, genmaicha, smoked earl grey... (the list keeps going)
Gym, Running, and Hiking
Me and my friend hiking in Cold Springs, New York
Cooking
When I miss home, I recreate some of my favorite dishes! In the picture, is a Chinese-Indonesian dish called kwetiaw goreng!