Officer -  Senior Data Scientist (Overall 10+ years of professional experience)

Role Description

We are seeking an Officer – Senior Data Scientist with deep expertise in applied machine learning and Generative AI/LLM solutions, strong Python skills, and a track record of delivering models and experimentation into production-grade applications/platforms. This role will lead the data science strategy, modeling approach, evaluation standards, and experimentation discipline for GenAI and ML use cases, partnering closely with AI/ML engineers, data engineering, and application/platform teams (including agentic application development). Candidates with experience shaping end-to-end solutions (problem framing → modeling → evaluation → product ionization → monitoring) and influencing architecture/design decisions are preferred.

Roles & Responsibilities

• Lead end-to-end data science delivery across multiple initiatives: problem framing, hypothesis design, feature strategy, model development, evaluation, and iteration.
• Drive development and improvement of ML and GenAI solutions, including model selection, fine-tuning approaches (where applicable), and performance optimization.
• Define and implement evaluation frameworks for ML/LLM systems (offline metrics, test sets, error taxonomy, regression testing, human evaluation loops).
• Provide DS leadership for RAG-based solutions (retrieval strategy, grounding, relevance quality, context optimization) and partner with engineering on implementation.
• Guide data science contributions to agentic applications: tool selection logic, planning/routing heuristics, guardrails, and measurable quality outcomes.
• Partner with AI/ML engineers and software/platform teams to transition models into production: packaging, APIs, monitoring, and continuous improvement.
• Collaborate with data engineers to define data requirements, data quality checks, preprocessing utilities, and feature engineering pipelines.
• Use cloud platforms (Azure preferred / AWS) to run experiments and support scalable training/inference using managed services where appropriate.
• Establish best practices for experiment tracking, reproducibility, documentation, and model governance.
• Communicate insights and recommendations to stakeholders; translate business goals into measurable ML/GenAI objectives and technical plans.
• Mentor senior/junior data scientists; lead reviews for modeling approach, evaluation design, and experiment results.
• Stay current on ML/GenAI advancements and recommend pragmatic adoption aligned with business and platform constraints.

Core/Must have skills

• BS or Master’s in Computer Science, Computer Information Systems, Engineering, Mathematics, or related field.
• 8+ years overall experience with 5+ years hands-on Python for applied data science/ML development.
• Strong knowledge of machine learning algorithms, model development lifecycle, feature engineering, and evaluation methodologies.
• Practical experience with LLMs/GenAI (e.g., GPT/BERT-class models), including prompt-based approaches and/or fine-tuning concepts.
• Strong understanding of LLM evaluation and quality measurement; ability to set up repeatable experimentation and regression testing.
• Experience partnering with engineering teams to productionize models (deployment patterns, monitoring, iterative improvements).
• Hands-on exposure to Azure or AWS ML/AI services and tooling.
• Excellent stakeholder management, communication, and cross-functional collaboration skills.

Good to have skills

• Experience with prompt engineering, prompt routing strategies, and guardrails for enterprise LLM applications.
• Experience with Databricks and/or Azure Machine Learning for scalable experimentation and pipelines.
• Knowledge of agent frameworks/patterns (e.g., orchestration, tool/function calling, memory) and how to measure agent quality.
• Familiarity with Docker/containerization and basic deployment concepts for DS assets.
• Experience with model risk, compliance considerations, and privacy/security patterns for GenAI (PII handling, prompt injection awareness).

Work Schedule

On-premise

Keywords (If any)

Senior Data Scientist, Generative AI, LLM, Applied Machine Learning, RAG, Agentic Applications, Python, Azure, Model Evaluation, Experimentation

About State Street

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