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Tony Ren

@tonyren

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Seasoned Senior Machine Learning Engineer with expertise in AI/ML systems.

United States

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What I'm looking for

I am seeking a role that fosters innovation and collaboration, where I can leverage my expertise in AI/ML to drive impactful solutions and mentor emerging talent.

I am a seasoned Senior Machine Learning Engineer and Data Scientist with over 8 years of experience in designing and deploying scalable AI/ML systems across healthcare, e-commerce, and cloud platforms. My expertise lies in NLP, LLMs, computer vision, and MLOps, with a strong focus on delivering business impact and operational efficiency. I have a proven track record of leading cross-functional teams, driving ML architecture decisions, and mentoring engineers to achieve excellence.

Throughout my career, I have successfully spearheaded initiatives that significantly improved operational metrics, such as reducing provider response times by 30% and increasing internal tool adoption by 40%. My work has involved architecting robust chatbot platforms, integrating advanced AI models, and developing multi-step agentic chains to enhance user workflows. I am AWS Certified and have delivered enterprise-grade solutions that have been adopted by Fortune 500 companies and high-growth startups.

Experience

Work history, roles, and key accomplishments

Current

Senior Machine Learning Engineer

Current

Abridge (AI Health Startup)

Jan 2024 - Present (1 year 7 months)

Spearheaded LLM-driven clinical assistant initiatives, reducing provider response times by 30% and boosting workflow automation. Architected a robust RAG chatbot platform using AWS, increasing internal tool adoption by 40%.

Claude APIs Python PyTorch scikit learn AWS Sagemaker EKS Lambda MLFlow OpenSearch OpenCV DICOM REST APIs Kubernetes RAG Architecture Terraform fastAPI Docker Claude API Function Calling

Machine Learning Engineer / Data Scientist

Amazon Web Services (AWS)

Sep 2020 - Present (4 years 11 months)

Built scalable ML architectures for enterprise clients using AWS ML stack, including SageMaker, Step Functions, and Elastic Inference. Delivered LLM-based solutions for knowledge extraction and document automation using S3, OpenSearch, and DynamoDB.

AWS Sagemaker Python TensorFlow PyTorch OpenCV OCR Libraries (Tesseract)CloudFormation Step Functions API Gateway IAM Docker ECS S3 Cloudwatch Git Lambda OpenSearch DynamoDB Athena

Data Scientist

Shopify

Jun 2017 - Present (8 years 2 months)

Built personalized recommendation systems and dynamic pricing models, increasing CTR by 20% and LTV by 15%. Designed and deployed a hybrid collaborative-content recommendation engine, improving A/B test conversion rates.

Python scikit learn Pyspark Pandas NumPy SQL AWS Lambda Flask TensorFlow XGBoost LightGBM Collaborative Filtering Content Based Filtering Matplotlib Airflow Redis REST APIs Databricks

Education

Degrees, certifications, and relevant coursework

Georgia Institute of Technology

Master of Science, Computer Science

2023 -

Pursued advanced studies in Computer Science, focusing on cutting-edge research and complex problem-solving. Engaged in rigorous coursework and projects to deepen expertise in the field.

Rice University

Bachelor of Science, Computer Science

2013 - 2017

Completed a comprehensive curriculum in Computer Science, building a strong foundation in theoretical and applied aspects. Gained practical experience through various projects and coursework.