15 hours ago
China (city not specified)Senior
Responsibilities
- Develop and improve classification, retrieval, ranking, and personalization models.
- Build classifiers and ranking models optimized for accuracy, precision, latency, and inference cost.
- Improve search relevance and context retrieval using embeddings, hybrid search, and reranking.
- Develop personalization models using user behavior and product data.
- Build evaluation pipelines, datasets, and metrics to measure model quality and detect regressions.
- Train, fine-tune, and deploy models through production machine learning pipelines.
- Monitor model performance, debug production issues, and improve models based on evaluation results and user feedback.
Requirements
- At least 3 years of machine learning engineering experience, including deploying models to production.
- Strong Python programming skills and experience with PyTorch or JAX.
- Solid understanding of machine learning algorithms, model training, and evaluation.
- Experience with classification, ranking, retrieval, recommendation, or personalization models.
- Experience with embeddings, vector search, or information retrieval systems.
- Experience building data pipelines, training workflows, and model inference services.
- Ability to evaluate model performance using relevant metrics and experimentation.
- Understanding of trade-offs among model accuracy, latency, computational cost, and reliability.
- Preferred experience with transformer models, LLM fine-tuning, embedding models, hybrid search, reranking, retrieval evaluation, recommendation systems, personalization in consumer applications, or large-scale ML training and inference infrastructure.
Categories
About Bjak
Bjak builds an online insurance marketplace for consumers in Malaysia and Southeast Asia, enabling comparison and purchase of car, health, life, and travel policies. Its business model is aggregator-based, earning commissions and fees from insurers and partners while streamlining digital applications and renewals. Founded in 2019 and headquartered in Selangor, it is privately held and is expanding from insurance comparison into broader fintech services via a planned finance super app.