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atharva chandakAC
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atharva chandak

@atharvachandak

Machine Learning Engineer at eBay

India
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At eBay, I built high-precision multimodal models that match seller listings to catalog products for recommendations, boosting GMV by $20 million. I also improved catalog-matching precision by 2.5%, coverage by 4%, and recall by 2% across multiple categories.

I'm researching and fine-tuning vision LLMs for fine-grained image extraction in the Collectibles segment. I optimized and deployed LLMs to improve throughput by 30%, and prototyped a RAG-based buyer assistant for personalized recommendations and agentic assistance.

At Wells Fargo, I built a RAG-based LLM assistant for merchant workflows from prototype to production, reducing loan application time by up to 30%. I also engineered credit-card services processing more than 1 million transactions per month across 18,000+ merchants.

My research includes continual object detection for autonomous driving at Mila / Robotics and Embodied AI Lab, University of Montreal, where my undergraduate thesis work cut catastrophic forgetting in object detection by 73%. I also proposed the AdQuesta VQA framework, which doubled QA accuracy compared with previous state-of-the-art approaches.

Experience

Work history, roles, and key accomplishments

Mila - Robotics and Embodied AI Lab, University of Montreal logoMM

Research Assistant

Mila - Robotics and Embodied AI Lab, University of Montreal

Jan 2023 - Jun 2023 (5 months)

Researched continual object detection in autonomous driving for undergraduate thesis, cutting catastrophic forgetting in OD by 73%. Created on-device incremental OD methods for robotics, achieving domain incremental avg mAP50 of 68.63.

AirLab, Carnegie Mellon University logoAU

Intern

AirLab, Carnegie Mellon University

Aug 2021 - Dec 2021 (4 months)

Implemented the vision pipeline for TartanAviation, generating 3.1M high-resolution images across 550 terminal airspace sequences. Engineered calibration and auto-labeling frameworks for precise aircraft detection.

Education

Degrees, certifications, and relevant coursework

Birla Institute of Technology and Science, Pilani logoBP

Birla Institute of Technology and Science, Pilani

Bachelor of Engineering, Computer Science

Pursued a Bachelor of Engineering in Computer Science with coursework in data structures, algorithms, machine learning, and computer vision.

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