31 principal security engineer jobs at 20 companies in Cotati, CA
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Principal Security Engineer
San Francisco or California
$319k-$479k/yr RemoteFull Time
10+ YOE10+ years developing production software, 5+ years focused on scaling security practices, technical leadership at principal level, strong system design, security expertise, and ability to write production-quality security automation code.
2mo
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Principal Security Engineer
San Francisco or Denver or New York City
$240k-$310k/yr OnsiteFull Time
10+ YOE10+ years security engineering experience; architecting secure systems, threat modeling, infra-as-code, and translating HIPAA/SOC2/PCI/HITRUST into engineering requirements; strong technical leadership and communication.
2mo
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Principal Software Engineer, Platform Security
San Francisco, California, United States
$197k-$314k/yr HybridFull Time
10+ YOE10+ years in software development; strong in databases, APIs, data pipelines; experience with large projects and security infrastructure.
API development, REST APIs, SDLC, AWS, GCP, Azure, Python, Ruby, Unix/Linux, Security infrastructure
2mo
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Principal Engineer - Stablecoin
Jersey City or Seattle or Plano or San Francisco or Charlotte
$157k-$230k/yr HybridFull Time
Experience designing and building secure, scalable financial blockchain apps and smart contracts; multi-cloud, multi-region; cloud providers (AWS, GCP, Azure); web3 protocols; Solidity/Rust; cryptography; DeFi; code reviews and security analysis; integration with external systems.
Solidity, Rust, Web3, Truffle, Hardhat, Remix, Web3.js, Ethers.js, Terraform, AWS, GCP, Azure
2w
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Offensive Security Agent Engineer
New York City or Seattle or Washington or San Francisco or United States
$347k-$490k/yr RemoteFull Time
Staff/principal-level offensive security expertise, domain knowledge in cloud/Kubernetes/web/Linux/macOS, experience building production software and agent systems, strong judgment and communication.
Kubernetes, Linux, macOS
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Lead Principal Firmware Engineer
Nashville or United States or San Francisco or Austin or Seattle
$146k-$306k/yr OnsiteFull Time
10+ YOE10+ years firmware engineering experience; hands-on BIOS/BMC/UEFI firmware; knowledge of secure boot/TPM, server firmware stacks and standards; strong communication and cross-team leadership skills.
EDKII, OpenBMC, Redfish, IPMI, PLDM, UEFI, ACPI, PCIe
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Principal Information Security Engineer
Eden Prairie or San Francisco or United States
$113k-$193k/yr RemoteFull Time
7+ YOEAssociate's degree, 7+ years Palo Alto firewall experience, 5+ years cloud security and security architecture experience, firewall policy compliance and remediation, Splunk/AlgoSec familiarity, strong communication and leadership.
Palo Alto Networks, AlgoSec, Firemon, Splunk
3w
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Sr. Principal Software Engineer - Network Security - PanOS
Santa Clara or San Francisco or San Jose
$170k-$277k/yr OnsiteFull Time
12+ YOEBachelor's or higher in CS (or equivalent),12+ years engineering experience with senior technical leadership, strong C/C++ on Unix, networking and security knowledge, mentoring and performance optimization experience.
C, C++, Unix, TLS
2mo
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Principal Forward Deployed Engineer
Bellevue or Chicago or San Francisco or Toronto
$269k-$369k/yr RemoteFull Time
10+ YOE10+ years in production software with distributed systems and identity; expertise in OAuth 2.0/OIDC/SAML, agent security, fine-grained authorization; proven AI hands-on; strong customer-facing authority; independent, founder’s mindset.
OAuth, OIDC, SAML, SCIM, OPA, Cedar, OpenFGA, MCP, A2A, ISO/IEC 42001, EU AI Act
2mo
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Principal Systems Engineer - IAM
San Francisco, California, United States
$184k-$276k/yr HybridFull Time
10+ YOESenior IAM engineer with 10+ years, PKI and privileged access management expertise; strong security governance knowledge; excellent communication and vendor management.
PKI, Identity and Access Management, Privileged Access Management, Active Directory, Security governance, IAM platforms
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Principal/Senior Principal Mechanical Engineer
Hawthorne or El Segundo or Los Angeles or Washington or San Francisco or San Diego or Seattle or London
$160k-$260k/yr OnsiteFull Time
10+ YOEBachelor's in Mechanical Engineering, 10+ years mechanical design and system integration experience in aerospace/defense, launcher design experience, CAD and FEA proficiency, electro-mechanical integration, MIL-STD familiarity, ability to obtain U.S. security clearance.
SolidWorks, NASTRAN, ABAQUS, ANSYS, COMSOL
3mo
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Principal Software Engineer, AI Onboarding
San Francisco, California, United States
$240k-$250k/yr HybridFull Time
10+ YOE10+ years software engineering; expert in Java, Spring, REST, microservices; strong AI tooling knowledge; cloud, security, and containerization savvy.
Java, Spring Framework, REST, Microservices, AWS, Azure, Google Cloud, Docker, Kubernetes, SQL, ElasticSearch, Redis, CI/CD, Kafka, Git, GitHub, GitLab, Maven, Ant, IntelliJ, Eclipse, Q, Github Copilot, Cursor
1w
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Principal Engineer, Backend Engineering
San Francisco, California, United States
$210k-$274k/yr OnsiteFull Time
Expert backend engineering to design and lead an AI proxy platform, ensure high availability, cost-efficiency, security integration, and mentor engineering teams.
Codex, Cursor, Claude Code, Rovo CLI
2mo
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Principal Engineer - Stablecoin
Jersey City or Seattle or Plano or San Francisco or Charlotte
$157k-$230k/yr OnsiteFull Time
10+ YOE10+ years experience designing and delivering secure, scalable blockchain and stablecoin solutions; smart contract development (Solidity,Rust); Web3 protocols; cloud (AWS/GCP/Azure); cryptography and DLT security.
AWS, GCP, Azure, Solidity, Rust, Ethereum, Solana, Hyperledger, Truffle, Hardhat, Remix, Web3.js, Ethers.js, Terraform, Chainlink
4w
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Principal/Sr Principal Material Process Engineer
Santa Rosa, California, United States
$104k-$155k/yr OnsiteFull Time
5+ YOEBS in STEM and 5+ years (or MS and alternative experience) in thin‑film/process engineering, ability to work with chemicals and PPE, ability to obtain Secret security clearance and SAP access, Microsoft Office experience.
Microsoft Word, Microsoft PowerPoint, Microsoft Excel, TFCalc, OptiLayer
3w
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Principal Research Software Engineer
San Francisco or United States
RemotePart Time
10+ YOE10+ years experience leading technical strategy for research software and data platforms; expert Python and SQL; experience with AI, data architecture, secure/regulated health data, and multi-institutional collaborations.
Python, SQL, PostgreSQL, MySQL, Parquet, DuckDB, Linux, Git, CI/CD
1mo
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Principal Engineer
San Francisco or Atlanta
$280k-$320k/yr HybridFull Time
8+ YOE3+ Mgmt8+ years software development experience with 3+ years technical leadership; expertise in full‑stack (React.js, Python, Go/Rust), cloud (AWS), microservices, containerization, CI/CD, data architecture, and security/compliance.
React.js, Python, Go, Rust, AWS, Docker, Kubernetes, ECS, CDK, CloudFormation, CI/CD, MLOps, Revit, AutoCAD, IFC
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Technology Engineer – Principal (1044) – Networks Specialty - Citywide (C00099)
San Francisco, California, United States
$171k-$244k/yr OnsiteFull Time
5+ YOEAssociate degree in CS/CE/IS or equivalent (or one-year experience substitution), 5 years technical experience installing/configuring/maintaining systems/platforms, ability to lead projects or supervise, passing Tech Engineer – Networks Core Exam required; some roles require security clearances.
EIGRP, CCNA, VLANS, 802.1x Authentication
1mo
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Principal Security TPM, AGS Security Engineering
Seattle or Arlington or New York or Herndon or San Francisco
$177k-$275k/yr OnsiteFull Time
7+ YOE7+ years technical product/program management, 5+ years security/compliance/risk experience, Bachelor's in CS/Engineering (or equivalent), experience driving roadmaps and cross-functional security programs; ACLS/other certs not required.
1mo
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Principal Engineer - Isovalent Secure Workload Observability (remote)
Milpitas or San Jose or Sunnyvale or Mountain View or San Francisco or Palo Alto
$231k-$332k/yr HybridFull Time
10+ YOE10+ years building software (Go, C++, Java), 5+ years technical leadership, degree in computer science/engineering or related field, experience with scalable distributed systems, Kubernetes, cloud APIs, algorithms and performance engineering.
Go, Golang, C++, Java, Kubernetes, AWS, Azure, GCP, eBPF, Cilium
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