Gen AI Data Scientist — Build Production AI Solutions

CommBank; Sydney; On-site; AUD 110,000 - 150,000; Full time

Job summary

CommBank is seeking a Data Scientist to build, validate and deploy generative and agentic AI across digital and assisted channels, improving customer experiences and outcomes. You will work on grounded evaluations, model selection and production deployment with strong governance and safety controls.

You will join a team advancing agentic and generative AI at scale, shaping secure foundations, governance, and collaboration between people and AI agents across engineering, product and governance

Qualifications

• A tertiary qualification in data science, statistics, computer science, engineering or another quantitative discipline, or equivalent demonstrated experience.
• Strong Python and SQL skills.
• Practical experience with large language models and agent frameworks, vector stores and cloud AI platforms.
• Experience in prompt and context engineering, retrieval design and evaluation of non-deterministic systems.
• Experience delivering generative AI or machine-learning solutions into production, ideally in a regulated environment.
• Knowledge of responsible AI, privacy and model-risk controls, including safety testing and guardrails.
• Ability to explain model behaviour, limitations and risks to technical, non-technical and governance audiences.
• Experience working in agile, cross-functional teams with engineers, product owners and designers.

Responsibilities

• Build and evaluate generative AI solutions, including retrieval-augmented generation and conversational assistants.
• Design agentic workflows that plan, use approved tools and complete multi-step tasks with oversight.
• Engineer prompts, system instructions and retrieval pipelines to improve grounding and response quality.
• Create evaluation harnesses and golden datasets covering groundedness, accuracy, task completion, latency and cost.
• Select and tune models for different use cases, balancing quality, cost, latency and data-residency requirements.
• Apply responsible AI controls, including hallucination mitigation, prompt-injection testing, privacy handling and risk-review evidence.
• Work with engineering colleagues to deploy and monitor solutions, including guardrails, telemetry and drift detection.

Skills

Python

SQL

LLMs

Agent frameworks

Vector stores

Cloud AI platforms

Agile teamwork

Education

Data science / statistics / CS / engineering degree or equivalent

Tools

Vector databases

Cloud AI platforms

Job description

CommBank is seeking a Data Scientist to build, validate and deploy generative and agentic AI across digital and assisted channels, improving customer experiences and outcomes. You will work on grounded evaluations, model selection and production deployment with strong governance and safety controls.

You will join a team advancing agentic and generative AI at scale, shaping secure foundations, governance, and collaboration between people and AI agents across engineering, product and governance