Machine Learning Engineer II- ML Systems, Models and Analysis

Role Summary
This role is suited for a candidate with deeper interest and capability in machine learning systems, model development, model evaluation, inference workflows, experimentation, and analytical problem-solving. The candidate will work on model-driven systems that support product matching, classification, similarity search, explainability, automated decisioning, and quality improvement.
The role requires someone who can understand ML model behavior, analyze outputs, improve inference pipelines, measure performance, and collaborate with science and engineering teams to translate model capabilities into production workflows.

Key Responsibilities

• Build, improve, and maintain ML inference pipelines and model-serving workflows.
• Work on model evaluation, error analysis, performance tracking, and experimentation.
• Analyze model outputs to identify patterns, failure modes, precision / recall trade-offs, and improvement opportunities.
• Collaborate with Data Scientists to operationalize models into production-ready systems.
• Support model training data preparation, labeling strategy, validation sample analysis, and benchmark creation.
• Work on ML systems involving embeddings, vector search, retrieval, classification, ranking, and match verdict generation.
• Develop analytical scripts, notebooks, dashboards, and reports to measure model performance and business impact.
• Help improve model explainability by surfacing signals, evidence, decision factors, and confidence indicators.
• Support automation workflows where model predictions are used for decisioning and downstream product workflows.
• Debug production ML issues related to model outputs, drift, thresholds, retrieval quality, and data inconsistencies.

• Contribute to building reusable ML utilities, evaluation frameworks, and experimentation workflows.

• Required Skills

• Bachelor’s or Master’s degree in Computer Science, Data Science, Machine Learning, Engineering, Mathematics, Statistics, or a related field.

• 2–5 years of relevant experience in ML Engineering, Data Engineering, Data Science Engineering, or Analytics Engineering.

• Strong academic or project experience may be considered for candidates with lower industry experience

• Good understanding of machine learning fundamentals, including classification, embeddings, similarity search, evaluation metrics, and model validation.

• Experience with ML libraries such as scikit-learn, PyTorch, TensorFlow, Hugging Face, sentence-transformers, or similar frameworks.

• Ability to perform model output analysis, error analysis, and metric-driven evaluation.

• Strong analytical skills with the ability to work with datasets, derive insights, and identify improvement opportunities.

• Good understanding of precision, recall, F1 score, confidence thresholds, false positives, false negatives, and sampling strategies.

• Strong in SQL , Python ML Libraries and data extraction for ML analysis.

• Familiarity with model inference pipelines and production ML workflows.

• Experience with LLMs, prompt-based evaluation, RAG systems, or agentic AI workflows.

• Ability to write clean, modular, maintainable code.

• Good communication skills to explain model behavior, analysis findings, and technical trade-offs.

Good to Have

• Experience with NLP, product matching, entity resolution, semantic search, or recommendation systems.
• Exposure to vector databases or retrieval systems such as Milvus, FAISS, OpenSearch, Pinecone, S3 Vectors, or similar technologies.
• Familiarity with ML Ops tools, model monitoring, experiment tracking, and deployment workflows.
• Experience working with e-commerce catalog data, product attributes, brand, size, pack, and taxonomy-related problems.
• Ability to build dashboards or analysis reports