Akash Pathak
Machine Learning Engineer | Personalization, Feature Engineering & MLOps
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About
Machine Learning Engineer with 2+ years of hands-on experience designing, training, and productionizing ML models — from gradient boosting to deep learning and NLP — on large-scale user and transactional data. Skilled at translating experimental notebooks into clean, modular, production-ready Python, and deploying models as low-latency REST APIs using FastAPI and Docker. Experienced building high-throughput feature engineering pipelines, monitoring production models for performance drift, and retraining to sustain accuracy.
Comfortable collaborating closely with backend engineers, data engineers, and product managers in fast-moving, in-office teams.
Experience
AI/ML Engineer at RateGain (2025-01 – Present)
- Design, train, and evaluate ML models spanning gradient boosting (XGBoost, Random Forest), deep learning, and NLP frameworks to improve prediction accuracy and downstream decision quality.
- Built large-scale feature engineering pipelines over millions of hotel listing and booking records, combining text normalization, multilingual embeddings, geo-spatial retrieval (BallTree), and FAISS approximate nearest-neighbor search for high-precision entity matching.
- Translated experimental notebook code into clean, modular, production-ready Python services; deployed models as low-latency REST APIs using FastAPI and Docker, processing 2M+ records daily with 35% lower latency through batching, caching, and optimized request handling.
- Containerized and orchestrated production ML services using Docker and Kubernetes (GKE) on GCP Cloud Run, ensuring scalable, reliable serving under production load.
- Set up MLflow-based experiment tracking, model versioning, and performance monitoring to detect degradation and trigger retraining, sustaining model accuracy over time.
- Collaborated cross-functionally with product and engineering stakeholders to scope model requirements, review architecture, and translate business problems into deployable ML solutions.
AI/ML Engineer Trainee at RateGain (2024-07 – 2024-12)
- Performed exploratory data analysis and feature engineering on large-scale transactional booking data using Python and SQL.
- Built and tuned a gradient-boosted (XGBoost) classification model with hyperparameter search to predict booking cancellations.
- Evaluated models using precision-recall, ROC-AUC, and confusion-matrix analysis, and clearly communicated statistical findings to both technical and non-technical stakeholders.
Education
B.Tech in Computer Science and Engineering (AI/ML) – ABES Engineering College, Ghaziabad (2020-09 – 2024-07)
