Sr. Machine Learning Engineer
at 6sense
San Francisco, California, United States, senior, full time, USD 2,00,350–2,60,913 / year, 8+ years
posted 20 Aug 2026
- Vector databases
- LangChain
- Retrieval-based systems
- LLM
- Prompt engineering
- LangGraph
- Embeddings
- NLP
- MLOps
- PyTorch
- Transformers
- RAG
- Databricks
- Amazon Bedrock
- AWS
- Python
- TensorFlow
About the role
Posted: 2026-08-20
What you would do
- Own machine learning problems end to end — from data exploration and modeling through deployment, monitoring, and iteration in production.
- Build NLP, LLM, and agentic systems at enterprise scale, including retrieval-based architectures and multi-agent workflows.
- Develop ranking, recommendation, prediction, and optimization models that are explainable rather than black-box.
- Partner with Product and Go-to-Market to turn ambiguous business problems into shipped capabilities.
- Improve the performance, scalability, and reliability of production ML systems, and help shape AI platform architecture.
- Explain your work clearly to technical and non-technical audiences, and engage with customers when needed.
- Mentor engineers and raise the bar for engineering excellence.
What they are looking for
Required
- 8+ years of industry experience building and deploying machine learning systems in production, with clear end-to-end ownership.
- Strong foundation in machine learning and applied statistics, with hands-on depth in NLP, transformers, embeddings, and retrieval-based systems.
- Practical experience with modern GenAI tooling such as LangGraph, LangChain, or Amazon Bedrock.
- Strong Python skills and experience building distributed ML pipelines on cloud infrastructure (AWS, Databricks, or equivalent).
- Solid grasp of feature engineering, model evaluation, and MLOps practices.
- A product mindset — you want to build AI products customers use, and you measure yourself on customer impact.
- Excellent communication: you can explain complex technical work clearly, tell the story of what you’ve built and why, and hold your own with product and business partners.
- Comfort with ambiguity and the judgment to drive execution independently.
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