About

Title: Data Scientist
Trading under Citrus International Pty Ltd for Epsilon AU
Brisbane
Data Scientist
How You’ll Make an Impact
As a Data Scientist in our Decision Sciences R&D organization, you will be responsible for researching and building optimization, control theory, simulation, machine learning and AI applications to extend Epsilon Retail Media Onsite ad personalization platform. Epsilon’s business is based on analyzing anonymized data at Internet scale and evaluating tens of billions advertising opportunities per month in real-time. You will work on real-world problems as part of our highly collaborative R&D team, and your solutions will directly and rapidly impact our business. This includes analyzing raw source data and derived data; researching and developing models, algorithms, and applications; building tools and analyses for new and existing products; and presenting findings.
What You’ll Achieve
• Develop an understanding of Epsilon’s ad personalization platform and proprietary datasets.
• Use your optimization, control theory, simulation, machine learning, and AI expertise to research and recommend the best approaches to solving our technology and business problems.
• Design, implement, and validate your solutions primarily in the GCP stack (GCS, Bigquery, VertexAI, Gemini) using Python.
• Work with our Engineering teams to integrate your solutions into Epsilon’s platform.
• Participate fully in our collaborative approach to research and applications projects.

Who You Are
What You’ll Bring with You:
• A Ph.D. in computer science, operations research, electrical engineering, statistics, mathematics, physics, economics, or a related scientific discipline.
• Research experience and coursework in optimization, control theory, machine learning, simulation or NLP/LLMs.
• Fluency in programming. Familiarity with Python.
• Experience working with large data sets.
• Strong understanding of modelling and statistical techniques.
• Desire to work in a highly collaborative environment.

Additional Useful but not Required Skills
• Experience with the GCP stack (GCS, Bigquery, VertexAI, Gemini), or other big-data ecosystems (e.g. Spark).
• Familiarity with SQL, Scala, Golang
• Experience modelling or analyzing consumer behavior, market dynamics, or auctions

Salary: Over threshold
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