Responsibilities
Define trust and safety problems and determine what content and behavior models should detect.
Work with labelers to create data for moderation models.
Train, evaluate, and deploy classifiers and LLM-based models on self-hosted GPUs.
Own model accuracy, latency, and cost across millions of images and messages per day.
Build image and chat moderation systems for prohibited content and reduce false positives.
Develop rapid retraining, evaluation, shadowing, and deployment workflows.
Automate portions of content review and user banning with appropriate safeguards.
Measure production outcomes and continuously improve deployed models.

Requirements
Demonstrated experience building technically complex products or solving difficult problems at meaningful scale.
Solid product judgment, including user awareness and evidence-based prioritization.
Ability to independently turn ambiguous problems into shipped products and own post-launch outcomes.
Trust and safety experience, ideally involving moderation or safety models at scale and sensitive data.
Rigorous,



pragmatic approach to experimentation, impact measurement, and cost-conscious engineering.
Transparent, concise communication and constructive challenge of ideas.
Curiosity about recent AI models and tools.
Motivation to take significant ownership and maintain high standards.
Experience with all listed technologies is not required.

Benefits
Above-market salary and meaningful equity.
Compensation reviewed every six months, with raises and bonuses tied to impact.
Opportunity for continued growth in scope, influence, and pay without moving into management.
Breakfast, lunch, dinner, and stocked fridges provided every day.
Company card and unlimited workspace budget for food, coffee, software, AI tools, equipment, and workspace setup.
Dog-friendly North Sydney office with a balcony and optional team socials.
In-person work in North Sydney is required.
Visa sponsorship is available for engineers relocating to Australia.

📌 Senior Ai Engineer Sydney
🏢 coreflow
📍 Sydney