13 ir engineer jobs at 10 companies in Cotati, CA
1mo
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AI Engineer, Search & Knowledge Systems
San Francisco, California, United States
OnsiteFull Time
Experience building production search, retrieval, and knowledge systems; strong software engineering in Python or TypeScript; hands-on with RAG, embeddings, vector search, rerankers, and IR concepts; security and production-readiness mindset.
Python, TypeScript, Embedding models, Rerankers, Lexical search, Semantic search, Hybrid search, Vector search, PostgreSQL, Docker
4d
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Senior Engineer - VCL Compiler
Denver or New York City or San Francisco
$181k-$217k/yr HybridFull Time
5+ YOE5+ years compiler or systems engineering experience; production C development in POSIX/Linux; strong compiler internals (parsing, AST, IR, codegen); refactoring large codebases; testing and CI/CD; strong written communication.
C, POSIX, Linux, Varnish, VCL, VCC
2mo
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Vision Systems Engineer
San Francisco, California, United States
OnsiteFull Time
5+ YOE5+ years in IR sensor systems, EO payloads, or space imaging; strong Kalman filtering, tracking, data association; CNNs/ML for real-time embedded inference; MATLAB/Python with production C++ experience.
Kalman filters (EKF, UKF), multi-target tracking, data association (JPDA, MHT), MATLAB, Python, C++, CNNs, embedded FPGA and GPU, radiometric modeling, Monte Carlo, hardware-in-the-loop
2w
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Senior Security Engineer II
San Francisco, California, United States
$149k-$235k/yr HybridFull Time
5+ YOESeveral years owning cloud security in production (including on-call), hands-on AWS and GCP, self-managed Kubernetes, Python and Terraform coding, detection/IR experience, and strong architecture and IAM skills.
AWS, GCP, Kubernetes, MongoDB, CrowdStrike, Tenable, Python, Terraform, SIEM
3mo
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Senior Staff Applied AI Engineer - Context Retrieval
Mountain View or San Francisco
$229k-$343k/yr HybridFull Time
10+ YOE10+ years software engineering; deep IR and retrieval systems experience; expertise in LLM-era retrieval and agentic systems; experience building 0→1 retrieval stacks and multi-source data retrieval.
BM25, Lucene, Elasticsearch, OpenSearch, FAISS, ScaNN, HNSW, embeddings, nDCG, MRR, Recall@K, RAG, Python, Java, SQL
2mo
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Applied Research Engineer
San Francisco, California, United States
$145k-$196k/yr HybridFull Time
3+ YOE3+ years in applied research, NLP/IR/ML; 1+ year production AI/ML; strong IR; RAG; Python; communicate findings.
Python, Jupyter Notebook, Vector databases, Information retrieval, RAG, LLM evaluation, ranking models, cross-encoders
2mo
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Senior Applied Research Engineer
San Francisco, California, United States
$167k-$226k/yr HybridFull Time
5+ YOE5+ years in applied research, data science, or ML focusing on NLP/IR; 2+ years building production AI/ML systems; strong IR/RAG experience; Python proficiency; ability to communicate findings; bonus in compliance/doc-heavy domains.
Python, Jupyter, Vector Databases, LLMs, RAG, Cross-Encoders, Learning-to-Rank, Evaluation Metrics, Notebooks
2mo
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Staff Applied Research Engineer
San Francisco, California, United States
$221k-$299k/yr HybridFull Time
10+ YOE10+ years in applied research or ML; 2+ years producing AI/ML systems; strong IR/NLP knowledge; Python proficiency; experience communicating research; bonus in compliance domain.
Python, Vector databases, LLMs, RAG, Machine Learning
1w
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Staff Machine Learning Engineer, Applied Research
San Francisco or United States
$189k-$390k/yr RemoteFull Time
6+ YOEMS/PhD in CS/ML/NLP/Statistics/Information Sciences,6+ years industry experience,ML/IR research experience,mastery of Java,C++,Python or ML frameworks (Tensorflow,Pytorch,MLFlow),strong communication and problem-solving skills.
Java, C++, Python, Tensorflow, Pytorch, MLFlow
3w
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Manager III, Applied Science, PXT Central Science
Boston or Bellevue or Seattle or Arlington or San Francisco
$184k-$286k/yr OnsiteFull Time
3+ Mgmt3+ years managing scientists/ML engineers; deep ML, NLP, IR knowledge; experience with causal inference, building production ML systems, and leading hiring and talent strategy.
machine learning, NLP, Information Retrieval, computer vision, deep learning, large language models, LLMs, Generative AI
2mo
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Manager, Forensic Technology
San Francisco or Santa Clara
OnsiteFull Time
5+ YOE5+ years digital forensics/IR experience, bachelor’s in CS/engineering/forensics, DFIR tool proficiency, scripting/programming (Python,Rust,C++,C#,Java), relevant certifications, ability to travel, U.S. work authorization required.
Digital Forensics and Incident Response (DFIR), Python, Rust, C++, C#, Java, Artificial Intelligence (AI)
2mo
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Senior Associate, Forensic Technology
Los Angeles or Sacramento or San Diego or San Francisco or Santa Clara or Washington or Chicago or New York or Dallas or Houston
OnsiteFull Time
3+ YOE3+ years digital forensics/IR experience, Bachelor\u0002s in CS/engineering/forensics or equivalent, DFIR investigations on iOS/macOS/Windows, scripting/programming (Python,Rust,C++,C#,Java), travel as needed, US work authorization required.
Digital Forensics and Incident Response (DFIR), Python, Rust, C++, C#, Java, Magnet, Cellebrite, Artificial Intelligence (AI)
3w
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Senior Manager, SIRT
Seattle or San Francisco or Irvine
$175k-$272k/yr OnsiteFull Time
5+ YOE5+ MgmtLead security incident response team; 5+ years managing incident handlers or 2+ years management plus 3+ years hands-on IR; experience with threat intelligence, detection engineering, cloud/host/network/app security, automation using scripting languages; strong communication.
Go, Python, Ruby, Bash