Senior Personalization & Recommendation Scientist

Gotogroup; Jakarta Pusat; Hybrid; IDR 600,000,000 - 900,000,000; Full time

Job summary

GoTo Group's GoPay Data Science team seeks a senior Data Scientist to develop and optimize personalization and recommendation models that deliver relevant offers, merchants, and experiences to GoPay users. You will apply DS techniques, prototype rapidly, and deploy end-to-end ML pipelines in production.

You will collaborate with product and engineering teams, analyze online/offline metrics, and iterate based on real-world feedback while contributing to the broader personalization roadmap across

Qualifications

• 6–8 years of relevant experience in applied data science or ML.
• Proficiency in Python; familiarity with Scikit-learn, TensorFlow, or PyTorch.
• Solid understanding of ML fundamentals including supervised learning, ranking, embeddings, and evaluation metrics.
• Experience with large-scale datasets using Spark, MaxCompute (MC), or other distributed data environments.
• Strong analytical and problem-solving skills with ability to translate data insights into actionable recommendations.
• Good communication skills to engage with cross-functional partners and present results clearly.
• Hands-on experience with search/recommendation/ads systems with improvements to ranking or targeting models.
• Familiarity with LLMs/LLVMs and integrating them into search or recommendation pipelines is a strong plus.
• Demonstrated ability to innovate with new algorithms/tools and drive measurable impact using LLMs/LLVMs.

Responsibilities

• Join a cross-functional team to build DS solutions that boost customer engagement and GoPay transactions.
• Rapidly prototype DS solutions and contribute to product discussions.
• Analyze large volumes of data to generate actionable insights.
• Own end-to-end solutioning from problem formulation to deployment with engineers.
• Participate in conferences and workshops.
• Design and implement search/recommendation/ads algorithms to drive discovery and conversion.
• Build user behavior and query/assortment models using LLMs/LLVMs to improve matching.
• Collaborate with product/engineering/DS teams to define problems, run experiments, deploy scalable solutions.

Skills

Python

ML fundamentals

Analytical skills

Communication skills

English communication

Cross-functional teamwork

Experimentation

Cloud/Big data

Education

Master's or Ph.D. in a quantitative discipline

Tools

Spark

MaxCompute

Job description

GoTo Group's GoPay Data Science team seeks a senior Data Scientist to develop and optimize personalization and recommendation models that deliver relevant offers, merchants, and experiences to GoPay users. You will apply DS techniques, prototype rapidly, and deploy end-to-end ML pipelines in production.

You will collaborate with product and engineering teams, analyze online/offline metrics, and iterate based on real-world feedback while contributing to the broader personalization roadmap across