PromotedHiringCafe
Founding Machine Learning / AI Search Engineer
Cupertino, CA, US
$160k-$310k/yr On-SiteFull Time
Build the ML and AI search behind HiringCafe — ranking, recommenders, retrieval, and LLM agents that surface jobs people would never find on their own.
Python, PyTorch, Elasticsearch, LLMs
2w
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Lead Data Scientist (Context Engineering)
Irvine or El Segundo
$154k-$193k/yr OnsiteFull Time
8+ YOE8+ years in data architecture/systems or data engineering; Bachelor's in CS/Info Systems/Data Engineering required, Master's preferred; expertise in semantic modeling, Databricks, vector DBs, LangChain/LlamaIndex, Python and SQL; MarTech/CRM integration experience.
Databricks, Unity Catalog, Delta Lake, Vector Search, LangChain, LlamaIndex, Python, SQL, Salesforce, Braze, CDP, LLMs
2w
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Lead Data Scientist (Agentic Solutions)
Irvine or El Segundo
$171k-$214k/yr OnsiteFull Time
5+ YOE5+ years in ML or applied data science; expertise with agentic frameworks, SLMs, LoRA/QLoRA, token-efficient architectures; expert Python and strong SQL; Bachelor's required (Master/PhD preferred).
LangChain, LlamaIndex, Haystack, Phi, Mistral, Gemma, LoRA, QLoRA, Python, SQL, Databricks, Spark, Delta Lake, Snowplow
2w
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Staff Data Scientist
Irvine, California, United States
$126k-$178k/yr OnsiteFull Time
2+ YOEAdvanced degree in CS/engineering/biostatistics or related plus multiple years experience (varies by degree); expertise in modeling, validation, and scaling ML for healthcare; ability to lead technical strategy and mentor others.
Ray, PyTorch, PyTorch Lightning, DeepSpeed, JAX, CUDA, C++
2mo
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Senior Data Scientist Advisor (Pomona, CA, US, 91768)
Pomona, California, United States
HybridFull Time
7+ YOELead data science initiatives; develop AI models for remote sensing; collaborate with stakeholders.
Python, R, SQL, Tableau, Power BI, AWS, Azure, Google Cloud
1mo
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Staff Environmental Scientist/Certified Site Surveillance Technician
Irvine, California, United States
$75k-$85k/yr HybridFull Time
2+ YOEBachelor's in engineering/geology/environmental science required; CSST or CAC and lead inspector/assessor/project monitor/sampling technician certifications required; 2+ years related experience; valid driver’s license; fieldwork, data collection, and technical writing skills.