154 principal security engineer jobs at 49 companies in Pacifica, 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.
3mo
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Principal Engineer, Identity Data Security and Trust
Menlo Park, California, United States
$264k-$380k/yr OnsiteFull Time
12+ YOE12+ years software engineering; 5+ years as principal/architect; security, DLP, cloud infra.
Java, Go, C++, AWS, GCP, Azure, TLS, HTTP, DNS
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 Offensive Security Engineer
Palo Alto, California, United States
$168k-$271k/yr OnsiteFull Time
8+ YOE8+ years in Offensive Security/Red Teaming, cloud expertise (GCP/AWS/Azure), Kubernetes security, IaC/CI–CD security, and led pentests/red team ops.
Kubernetes, Container Security, IaC, CI/CD, Cloud Security
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Principal Embedded Security Engineer
Sunnyvale, California, United States
$296k-$375k/yr HybridFull Time
Design and deliver security for internet-connected embedded devices, incorporate hardware-based security (HSM, TrustZone, Secure Boot), cryptography and PKI knowledge, system-level kernel/bootloader experience, and strong communication skills.
Python, C++, C, Go, QNX, Azure, GCP, TrustZone
2w
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Principal Security Engineer
Redmond or Mountain View
$166k-$296k/yr HybridFull Time
8+ YOEBachelor's in CS or related and 8+ years engineering experience coding in C/C++/C#/Java/JavaScript/Python; expertise in firmware/hardware security, cryptanalysis, and Confidential Computing; must pass Microsoft security screenings.
C, C++, C#, Java, JavaScript, Python, Rust
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Principal Embedded Security Engineer
Sunnyvale, California, United States
$296k-$375k/yr HybridFull Time
Design and deliver security systems for internet-connected embedded devices; incorporate hardware-based security (TrustZone, Secure Boot, HSMs); strong cryptography/PKI knowledge; system-level (kernel/bootloader) experience; proficiency in Python, C++, C, or Go.
Python, C++, C, Go, QNX, Azure, GCP, TrustZone, Secure Boot, Hardware Security Modules, Public Key Infrastructure
2mo
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Principal Engineer, Firmware Security
San Jose or Longmont or Folsom
$161k-$318k/yr OnsiteFull Time
10+ YOEBachelor's degree, 10+ years security firmware experience, applied cryptography and post‑quantum expertise, proficiency in C and Python, experience with SoC/FPGA debugging, and knowledge of storage security standards.
C, Python, Rust, JTAG, FPGA, SoC, Caliptra
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Senior Principal Engineer, Offensive Security (2026-345)
San Jose, California, United States
$190k-$240k/yr OnsiteFull Time
12+ YOEBachelor's in CS/CE/EE or related,12+ years offensive security experience,expertise in hardware/firmware/embedded/cloud or AD,proficiency in Python/C/C++/assembly,knowledge of MITRE ATT&CK,track record driving remediation.
Python, C, C++, Assembly, Azure, MITRE ATT&CK, PCIe, CXL, COSMOS
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
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Principal Cyber Security Engineer, Strategy and Architecture
Carlsbad or Reston or Marlborough or Tempe or San Jose or New York City
$230k-$363k/yr HybridFull Time
10+ YOEBachelor's or Master's in a technical field, 10+ years in security/systems/network engineering, strong risk analysis and secure system design experience, hands-on with enterprise security tools, US citizenship, up to 20% travel.
firewalls, IDS/IPS, PKI, SIEM/SOAR, EDR/NDR, CSPM/CNAPP, zero-trust, NIST, ISO 27001, GDPR, CCPA
3w
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Principal Engineer — Product & Application Security
San Mateo, California, United States
$241k-$298k/yr HybridFull Time
12+ YOE12+ years securing cloud-native multi-tenant SaaS, deep application/product security expertise, threat modeling, CI/CD security (SAST/DAST/SCA), coding ability in modern languages, and experience defining org-wide security standards.
Snyk, Snyk Code, Sonatype Nexus, Ruby, Java, Go, Python, JavaScript, TypeScript, Terraform, CloudFormation, Kubernetes, Claude, LangGraph, SAST, DAST, SCA, IaC, SBOM, CI/CD, SIEM, SSPM
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
1mo
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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
1mo
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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
2mo
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Principal Security Data Engineer, Infrastructure Security Engineering - DGX Cloud
Santa Clara or California or United States
$272k-$431k/yr OnsiteFull Time
15+ YOE15+ years building and operating production data pipelines/lakes at scale; production-grade coding (Python, Go, Scala, SQL); data modeling, distributed systems, and security-minded data handling; Bachelor's or equivalent experience.
Python, Go, Scala, SQL, OCSF, ECS, DCGM, Redfish, BMC, InfiniBand, SIEM, DGX Cloud, LLM
2mo
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Principal Security Data Engineer, Infrastructure Security Engineering - DGX Cloud
Santa Clara or California or Canada or United States
$272k-$431k/yr HybridFull Time
15+ YOE15+ years building and operating production data pipelines/lakes, production-grade coding (Python/Go/Scala/SQL), data modeling, distributed data systems, security-minded data handling, analytics enablement; Bachelor's or equivalent.
DGX Cloud, Python, Go, Scala, SQL, SIEM, OCSF, ECS, DCGM, Redfish, BMC, InfiniBand
1mo
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Principal Enterprise Security Engineer
San Mateo, California, United States
$294k-$343k/yr HybridFull Time
9+ YOE9+ years of relevant experience; deep expertise in IAM, endpoint, network and SaaS security; familiarity with zero trust, threat modeling, SOC 2/ISO 27001; experience with Google Workspace, Okta, MDM, SSPM, and cloud-native environments.
Google Workspace, Okta, MDM, SSPM, ZTA, SOC 2, ISO 27001
2mo
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Sr. Principal Engineer
Fremont, California, United States
$179k-$257k/yr OnsiteFull Time
15+ YOESenior-level engineering position focused on network engineering and security; extensive hands-on experience with Cisco tech, WAN/LAN, and project leadership.
Cisco, VPN, SDWAN, Python, Ansible
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