ML Engineer: Ranking, Retrieval & Personalization

ActAI; Singapore; Vor Ort; SGD 90.000 - 150.000; Vollzeit

Zusammenfassung

ActAI is building an agent-first mobile AI-native platform. We seek engineers who can bring practical ML to production, focusing on classification, ranking and personalization across real-world data.

You will work on embeddings, vector search, model evaluation and deployment pipelines, shipping reliable ML-powered features used by millions of users with strong ownership and cross-functional collaboration.

Qualifikationen

• Strong foundations in machine learning and modern neural architectures.
• Hands-on experience building and deploying ML models in production.
• Experience in classification, ranking, retrieval, recommendation systems or personalization.
• Understanding of model evaluation, experimentation and performance metrics.
• Comfortable writing production-quality code and working with real-world datasets.
• Able to balance model quality, latency, cost and reliability.
• Strong ownership and problem-solving skills.

Aufgaben

• Build and improve ML models for classification, ranking, retrieval and personalization.
• Develop efficient classifiers and optimize model accuracy, precision, latency and cost.
• Improve search relevance and context retrieval using embeddings, hybrid search and reranking.
• Build personalization models that learn from user behavior while respecting privacy.
• Develop evaluation pipelines, labeled datasets and metrics to measure model quality.
• Fine-tune and adapt existing models when supported by sufficient data.
• Build and maintain ML training, inference and deployment pipelines.
• Debug production issues, monitor model performance and ship improvements based on real-world feedback.

Kenntnisse

ML fundamentals

Production ML

Classification & Ranking

Retrieval & Personalization

Evaluation & Metrics

Production-grade Coding

Data Handling

Ownership & Problem Solving

Ausbildung

MS/PhD in CS/ML

BS in CS/ML

Tools

Python

PyTorch/JAX

Embeddings & Vector Search

Ranking Models

Production ML Pipelines

Jobbeschreibung

ActAI is building an agent-first mobile AI-native platform. We seek engineers who can bring practical ML to production, focusing on classification, ranking and personalization across real-world data.

You will work on embeddings, vector search, model evaluation and deployment pipelines, shipping reliable ML-powered features used by millions of users with strong ownership and cross-functional collaboration.