96 security researcher jobs at 54 companies in Fairfax, CA
2w
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Security Researcher
San Francisco or Israel
OnsiteFull Time
8+ YOE8+ years in security research or applied security engineering, startup/0→1 experience, research-to-product track record, strong programming (Python/Go/TypeScript), LLM fluency, experiment and benchmark design, and US or Israel work authorization.
Python, Go, TypeScript, LLMs, AWS, GCP
1mo
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Principal Security Researcher
Santa Clara or San Francisco or San Jose
$163k-$263k/yr OnsiteFull Time
Deep hands-on vulnerability research, exploit analysis, IPS/IDS detection, network protocol expertise, strong programming/scripting for research automation, technical leadership, and BS/MS in CS/CE/Cybersecurity or equivalent experience.
3mo
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Security Researcher, Agentic AI Threats
San Francisco, California, United States
$293k-$405k/yr HybridFull Time
Strong security, systems, and software engineering skills; cloud, OS, containers, and CI/CD experience; ability to design security controls and run evaluations; collaborate with stakeholders.
Cloud, Containers, CI/CD, Operating Systems, Security Tools, Penetration Testing
6d
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Staff+ Researcher, Cybersecurity Products
San Francisco, California, United States
$405k-$485k/yr HybridFull Time
7+ YOEDeep cybersecurity expertise, experience building AI-powered security tools, rigorous evaluation skills, clear technical communication, and 7+ years in security research, engineering, or a related field.
GPT-3, Circuit-Based Interpretability, Multimodal Neurons, Scaling Laws, AI & Compute, Concrete Problems in AI Safety, Learning from Human Preferences
5d
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Standards Researcher
San Francisco, California, United States
$140k-$200k/yr OnsiteFull Time
Security research or standards experience; ability to read NIST, ICD 705, and vendor documentation, synthesize primary sources, and write clearly and precisely under editorial pressure.
NIST, ICD 705
2mo
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Applied Researcher 2/ Senior Applied Researcher
Redmond or Mountain View or New York
$102k-$261k/yr HybridFull Time
1+ YOEMaster's (1+ yr) or Bachelor's (2+ yrs) in a relevant field or equivalent; ability to pass Microsoft security screening; research experience with LLMs, CodeLLM or AI IDE preferred; experience publishing and running large-scale ML experiments.
GitHub Copilot, Microsoft VS Code, Microsoft Visual Studio, Copilot CLI, Copilot Code Review, LLM, CodeLLM, RAG, Code agent, AI IDE
3mo
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Laser Postdoctoral Researcher - Advanced Photon Technologies
Livermore, California, United States
$123k/yr OnsiteFull Time
0+ YOEPhD in laser physics or related field; experience with high-energy solid-state lasers, ultrafast lasers, and experimental laser systems; ability to work in multi-disciplinary team; US citizenship for security clearance.
Zemax, Code V, OSLO, FRED, LightTools, ASAP, COMSOL, ANSYS, LabVIEW, Python, MATLAB
2w
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Applied AI/ML Researcher - Vice President
Palo Alto or Houston
$164k-$260k/yr OnsiteFull Time
5+ YOE5+ years in software engineering or applied AI/ML research, advanced degree or equivalent experience, strong Python skills, experience with cloud platforms, containers/Kubernetes, CI/CD, observability, and secure software practices.
Python, AWS, Azure, GCP, Kubernetes
1w
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Senior/Principal R&D Cybersecurity - Formal Verification Researcher, Onsite
Livermore, California, United States
$140k-$281k/yr OnsiteFull Time
5+ YOEBachelor's degree in a relevant discipline plus 5 years of directly relevant experience, or equivalent education and experience; ability to obtain and maintain a U.S. DOE Q-level security clearance and conduct independent R&D.
Haskell, OCaml, Rocq, Python, C, Rust, Verilog, VHDL, NuSMV, TLA, assembly languages, high-performance computing platforms
1mo
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Security Engineer (Corporate IT)
Berkeley or London or United States
$346k-$930k/yr OnsiteFull Time
Build and own corporate IT security for a distributed research org; hands-on experience with endpoint management, IAM/Zero-Trust, email security, compliance (SOC 2/ISO 27001), and translating security requirements for researchers. Bachelor's degree or equivalent required.
MDM/EDR, CI/CD, Zero-Trust, multi-cloud, SOC 2, ISO 27001
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Staff II - Application Security Engineer
Atlanta or Mountain View
$220k-$270k/yr HybridFull Time
12+ YOE12+ years application security experience; expertise in threat modeling, secure design and architecture for cloud-native systems; proficiency reading Java and C++; experience with code review, vulnerability research, and maturing security programs.
Java, C++, CodeQL
2mo
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Staff Product Security Engineer
San Francisco, California, United States
$180k-$248k/yr HybridFull Time
7+ YOE7+ years in information security with deep application/offensive research or AI/ML security, hands-on assessment of LLM-integrated and agentic systems, proficiency in multiple programming languages, threat modeling, manual code review, and strong communication.
Python, Go, Java, TypeScript, C, C++, SAST, DAST, SCA, fuzzing, OIDC, OAuth 2.0, SAML, CI/CD, LLM, MCP
1mo
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Product Security Analyst
Boston or Austin or Washington or Seattle or San Francisco
$120k-$155k/yr RemoteFull Time
3+ YOE3+ years security testing/vulnerability research on web/mobile apps, strong OWASP Top 10 knowledge, experience with Burp Suite and CVSS, ability to reproduce/validate findings and communicate technical impact in English.
Burp Suite, Common Vulnerability Scoring System (CVSS)
1mo
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Security Software Engineer, Open Source Frameworks
San Francisco or New York City or London or Berlin
$208k-$312k/yr HybridFull Time
4+ YOE4+ years security engineering with hands-on open source contributions; deep JavaScript/TypeScript and Node framework knowledge; vulnerability research, coordinated disclosure, and CVE experience; strong communication.
Turborepo, Nuxt, Svelte, SvelteKit, SWR, Workflow, Nitro, JavaScript, TypeScript, Node, Sigstore, SLSA
2mo
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Senior Security Engineer, AI/ML
Foster City, California, United States
$115k-$140k/yr OnsiteFull Time
6+ YOE6+ years combined software/ML and security research or penetration testing experience; strong Python; experience with Scikit-learn, TensorFlow or PyTorch, LangChain/LlamaIndex, vector DBs (FAISS, Pinecone, Qdrant), cloud (AWS/GCP/Azure), SQL and Pandas.
LangChain, LlamaIndex, AutoGen, CrewAI, FAISS, Pinecone, Qdrant, Python, Scikit-learn, TensorFlow, PyTorch, OpenAI, HuggingFace, MetaGPT, Guardrails.ai, LLM Guard, Tracer, GPT-4, Claude, Mistral, LLaMA, Falcon, SQL, Pandas, AWS, GCP, Azure, MLOps, STRIDE, MITRE ATLAS
6d
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Security Solutions Engineer (Pre-Sales) - Remote/SF Bay Area
San Francisco or United States
$150k-$200k/yr RemoteFull Time
Requires enterprise cybersecurity knowledge, cybersecurity solution sales, pipeline management, solution design, presentation skills, client communication, and market research experience; technical certifications preferred.
1mo
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Head of Research
Luxembourg or Seoul or Paris or San Francisco
OnsiteFull Time
8+ YOE3+ MgmtSenior research leader with 8+ years in identity, digital trust, or cryptography and 3+ years leading research teams; deep eID standards knowledge and familiarity with NFC, biometrics, and secure elements; based in Luxembourg; fluent English.
W3C, ISO, ETSI, sd-jwt-js, NFC, biometrics, secure elements
2mo
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Senior Cybersecurity Architect, Agentic SOC Modernization & AI-Enabled Security Operations
Chicago or Los Angeles or New York City or San Francisco or Seattle or Washington, D.C.
$194k-$262k/yr OnsiteFull Time
7+ YOE7+ years in security architecture/SOC modernization; experience with SIEM/SOAR, detection engineering, AI-enabled SOCs, platform modernization, and executive advisory; willingness to travel; must be eligible to work in the US without sponsorship.
Splunk, Microsoft Sentinel, Google Security Operations, Google SecOps, Chronicle SIEM, Chronicle SOAR, Palo Alto Cortex, ServiceNow SecOps, CrowdStrike, BigQuery, Google Cloud, ChatGPT, MITRE ATT&CK, YARA-L, Sigma, VirusTotal, Wiz, Prisma Cloud, Okta, SailPoint, Mandiant, EDR, XDR, IAM, PAM, DLP, ITSM, SIEM, SOAR
1mo
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Applied AI Research Engineer
Boston or San Francisco or United States
HybridFull Time
3+ YOEBachelor's or Master's in a technical field (or equivalent), 3+ years building AI/ML or applied research systems, strong Python and PyTorch skills, experience with LLM tooling, fine-tuning, retrieval, agentic systems, and experiment design; eligible to obtain U.S. security clearance.
Python, PyTorch, Transformers, vLLM, Hugging Face
2w
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Associate or Full Specialist – Diaz lab
San Francisco, California, United States
$78k-$202k/yr OnsiteFull Time
5+ YOEDevelop and apply reproducible bioinformatics workflows for bulk and single-cell genomic data; proficiency in R/Python and Unix; experience with NGS analysis and secure research data management.
R, Python, Linux/Unix, Git, GitHub
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