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Brian – Machine learning, Data Science, Big Data, experts in Lemon.io

Brian

From Canada (UTC-4)flag

Machine Learning Engineer|Senior
Data Scientist|Senior
AI Engineer
Team lead
Lemon.io stats
2
projects done
1032
hours worked
1
offers now 🔥

Brian – Machine learning, Data Science, Big Data

This engineer has experience with Python, SQL, cloud services, and various data science-related ecosystem tools. He also has a strong understanding of some of the cloud-related MLOps concepts. Brian is adept at effectively managing non-technical stakeholders and communicating complex ideas clearly. Proficient in developing and deploying LLMs, ML models, and pipelines, Brian is a skilled AI engineer as well. Outside of daily work, Brian can be found practicing some sports, including muay thai!

8 years of commercial experience in
Adtech
AI
Consulting services
Fintech
Machine learning
Marketing
Music and audio
AI software
Platforms
Main technologies
Machine learning
5.5 years
Data Science
5.5 years
Big Data
5.5 years
MLOps
2.5 years
Python
5 years
Additional skills
AI
Data Warehouse
PyTorch
GCP
AWS
Apollo GraphQL
Apache Kafka
Docker
Terraform
PySpark
Kubernetes
CI/CD
Deep Learning
Apache Airflow
FastAPI
Apache Spark
Pandas
Scikit-learn
NumPy
BigQuery
LLM
OpenAI
Web scraping
Tensorflow
LangChain
Pydantic
Prompt engineering
Vector Databases
Testimonials
#38149642144AI Engineer – Genre Classification for African Music

"Brian is excellent as well. Very pleased so far!"

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Experience Highlights

Senior AI Engineer
Apr 2024 - Nov 20247 months
Project Overview

A multi-strategy hedge fund management firm that now focuses on delivering a financial platform for investors.

Responsibilities:
  • Architected hybrid Natural Language Processing (NLP) + LLM pipelines to convert unstructured financial calls, news, and filings into structured, actionable investment signals, enabling clients to identify market-moving events faster and reducing time-to-insight for high-value investment decisions.
  • Led fine-tuning of transformer and LLM models (FinBERT, BERT, GPT variants) for financial event extraction, sentiment analysis, and summarization, increasing signal accuracy and cutting manual analyst effort by 40%, directly improving operational efficiency and platform scalability.
  • Integrated multi-source financial signals into production pipelines, implementing embeddings and ranking systems to surface high-impact events in real-time, accelerating client decision-making and enhancing platform value for enterprise investment teams.
  • Developed advanced embeddings and clustering frameworks to identify recurring financial events and emerging market trends, enabling proactive alerts that empowered clients to capitalize on high-priority investment opportunities ahead of the market.
Project Tech stack:
LLM
GCP
Vertex AI
Senior Machine Learning Engineer
Mar 2021 - Mar 20243 years
Project Overview

The world’s leading digital cross-device graph. It enables marketers to identify a brand customer or related household across multiple devices, unlocking critical use cases across programmatic targeting, media measurement, attribution, and personalization globally.

Responsibilities:
  • Spearheaded the migration from a deterministic device matching system to a scalable ML-driven cookieless household clustering pipeline, improving privacy-compliant ad targeting and increasing campaign ROI by 20–30%;
  • Built and productionized high-accuracy household and individual clustering models, reducing targeting errors by 25% and improving operational efficiency across ad campaigns;
  • Led the Data & AI Platform initiative, designing and deploying core ML platform components across GCP, PyTorch, Vertex AI, and TFX, streamlining experimentation pipelines and accelerating model iteration cycles;
  • Acted as a technical multiplier for the team, managing and mentoring engineers on ML productionization, which directly improved deployment reliability and accelerated team velocity;
Project Tech stack:
AI
Machine learning
Senior Machine Learning Engineer
Jun 2019 - Dec 20201 year 6 months
Project Overview

Data & AI platform solutions for various IBM external clients across diverse industries for ensuring the scalability of their data and machine learning models.

Responsibilities:
  • Spearheaded the design and implementation of distributed ML systems for enterprise clients, translating complex client requirements into scalable solutions that directly improved operational efficiency;
  • Deployed scalable real‑time data pipelines on PySpark and Airflow/Kubernetes, processing millions of records daily with automated anomaly detection, improving data reliability and operational visibility for enterprise clients;
  • Designed internal Data & AI platform supporting terabyte‑scale distributed pipelines and CI/CD on Kubernetes, boosting developer productivity 2x and reducing infrastructure costs 40%;
Project Tech stack:
Python
React
MongoDB
Apache Kafka
PySpark
Pandas
Kubernetes
Jenkins
AI
Data Scientist
Oct 2018 - Jun 20198 months
Project Overview

The team provided data modeling solutions to various external clients in multiple industries through IBM, addressing their specific business use cases.

Responsibilities:
  • Built ML models (XGBoost, Random Forest) for oil well failure prediction, improving accuracy by 11% via custom metrics and NLP feature engineering.;
  • Developed an NLP classifier using TensorFlow, achieving 92% accuracy, and built an Angular dashboard for legal teams as an MVP, securing a business deal with IBM valued at over $1 million.;
  • Automated rule-based analytics on DB2, identifying 1,200+ high-risk cases for government audits.;
Project Tech stack:
Python
Data Analyst
Jan 2016 - Jun 20171 year 5 months
Project Overview

The revenue service of the Canadian federal government, and most provincial and territorial governments. The CRA collects taxes, administers tax law and policy, and delivers benefit programs and tax credits.

Responsibilities:
  • Built an ML pipeline (Scrapy, Scikit-Learn) to flag non-compliant businesses, improving audit targeting efficiency by 30%, recovering over $1 million dollar back in taxes.;
  • Implemented a web scraping solution using ScraPy, BeautifulSoup with features like rotating proxies, dynamic user-agents, and rate limiting to handle anti-scraping mechanisms and ensure reliable data extraction to support auditors.
Project Tech stack:
Python
Machine learning
Web scraping
C#

Education

2017
Statistics & Computer Science (Specialist in Machine Learning & Data Science)
Bachelor's

Languages

English
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