62 security engineering intern jobs at 39 companies in California
4w
Save
Mark Applied
Hide
Cyber Security Intern
San Francisco, California, United States
$40-$55/yr HybridInternship
Pursuing Bachelors/Masters in cybersecurity, CS, or related; interest in cloud/data security and SecOps; basic knowledge of GCP/AWS/Azure and SQL; strong communication and analytical skills.
GCP, AWS, Azure, SQL, Cursor, Claude Code, SIEM, CI/CD, LLM
1mo
Save
Mark Applied
Hide
Security Engineer Intern
San Mateo, California, United States
$30-$50/hr HybridInternship
Coursework or projects in security engineering/cloud/DevSecOps; ability to read code and automate with at least one language (Python, Go); familiarity with cloud security, IAM, CI/CD security, containers/Kubernetes; strong communication.
Python, Go, Terraform, OPA, Conftest, GitHub Actions, GitLab, SIEM, CI/CD, OWASP Top 10
4w
Save
Mark Applied
Hide
Platform Security Engineering, Operating Systems
San Francisco or New York City or Seattle
$320k-$405k/yr HybridFull Time
Deep Linux internals and kernel security knowledge, C and systems programming, eBPF experience, familiarity with SELinux/AppArmor/seccomp, track record fixing OS-level vulnerabilities; bachelor's degree or equivalent.
Linux, SELinux, AppArmor, Linux Security Modules, seccomp, eBPF, C, SEV, TDX, SGX, TPM, HSM
1mo
Save
Mark Applied
Hide
Product Security Engineer
San Carlos, California, United States
$138k-$250k/yr OnsiteFull Time
5+ YOE5+ years in product/offensive security; strong Linux internals, penetration testing, cryptography/PKI, cloud/CI/CD security; proficiency in C/C++, Rust, Go or Python; bachelor’s in CS/InfoSec/Engineering or equivalent.
C, C++, Rust, Go, Python, Linux, OP-TEE, fTPM, AWS, GCP, Azure, Kubernetes, CI/CD, HSM, Thales, Utimaco, AWS CloudHSM, ACME, SCEP, NVIDIA Jetson, SBOM, PKI
2mo
Save
Mark Applied
Hide
Senior Security Engineer
Milpitas or Irvine
$131k-$218k/yr HybridFull Time
5+ YOE5–10+ years in security engineering; SOC tooling ownership; strong scripting (PowerShell, Python); Windows/Linux internals; malware analysis; MITRE ATT&CK knowledge.
EDR/XDR, CrowdStrike, Microsoft Defender for Endpoint, SentinelOne, PowerShell, Python, Windows, Linux
2mo
Save
Mark Applied
Hide
Senior Manager, Engineering - Platform Security
Denver or New York City or San Francisco
$228k-$274k/yr HybridFull Time
4+ YOE4+ Mgmt4+ years managing Platform or Site Reliability Engineering teams; 10+ years distributed systems; experience with secrets/workload identity; large-scale production infra in cloud and on-prem; Linux internals; Python or Go a plus.
Kubernetes, PKI, Chef, Python, Go, Terraform, HashiCorp Vault, SPIFFE, SPIRE, Linux
3w
Save
Mark Applied
Hide
Security Engineering Project Intern (Watermark) - 2026 Start (BS/MS)
San Jose, California, United States
OnsiteInternship
Currently pursuing a Bachelors or Masters in CS, CE, Security, AI or other STEM; strong CS fundamentals; proficiency in Python/Go/C++/Java; OpenCV or deep learning experience; able to commit ≥3 months.
Python, Go, C++, Java, OpenCV
1mo
Save
Mark Applied
Hide
Manufacturing Engineering Internship
El Segundo, California, United States
$20-$30/hr OnsiteMultiple Commitments Available
Currently enrolled or recent graduate in Mechanical, Aerospace, or Electrical Engineering; analytical and electrical skills; SolidWorks experience preferred; must be U.S. citizen/permanent resident/refugee/asylee or eligible for required export authorizations; able to obtain government security clearance.
SolidWorks
3w
Save
Mark Applied
Hide
Security Software Engineer Project Intern (Product Security) - 2026 Start (BS/MS)
San Jose, California, United States
OnsiteInternship
Pursuing a BS/MS in CS or STEM, security engineering knowledge (web, mobile, network, OS, crypto, cloud), coding experience in at least one listed language, and strong debugging/problem-solving skills.
JavaScript, Node JS, Go, Python, Java, C++, Rust, LLM, NLP
1mo
Save
Mark Applied
Hide
Physical Security Technology Lead
San Francisco, California, United States
$137k-$206k/yr OnsiteFull Time
2+ YOE2+ years security systems engineering/administration and project management experience; vendor management; proficiency in Microsoft Office and Google applications; ability to develop, procure, and maintain physical security hardware and software; domestic and international travel required.
Microsoft Office, Google applications, Avigilon, OpenPath, Glean, Claude, Gemini, computer-aided drafting systems
1mo
Save
Mark Applied
Hide
Security Engineer II, Detection and Response
San Francisco or Vancouver or Phoenix or Los Angeles or Seattle or Austin or Portland or California or United States or Canada
$123k-$165k/yr RemoteFull Time
2+ YOE2+ years in detection/response or security engineering; experience with incident response, AWS + EKS, AI tooling, MacOS internals, and programming in Python or Golang; familiarity with Slack and GSuite; able to take on-call shifts.
Slack, Apple MacOS, GSuite, SIEM, Orchestration platforms, AWS, EKS, AI tooling, Python, Golang
2mo
Save
Mark Applied
Hide
Infrastructure Security Engineer
San Francisco, California, United States
OnsiteFull Time
BS in CS/EE or equivalent; Rust/Go/Python; Linux internals; Kubernetes security; software supply chain security; identity and secrets management; experience protecting assets; detection and response; multi-cloud (AWS, GCP, Azure, CoreWeave, Crusoe).
Rust, Go, Python, Kubernetes, SBOM, signing, attestation, AWS, GCP, Azure, CoreWeave, Crusoe
1mo
Save
Mark Applied
Hide
Principal Security Researcher, OT/Healthcare
Santa Clara, California, United States
$163k-$263k/yr OnsiteFull Time
4+ YOE4+ years' hands-on experience; strong firmware/boot ROM reverse engineering, kernel internals and secure boot knowledge; hardware debugging (UART, JTAG, SWD, oscilloscopes, logic analyzers); programming in C/C++ and Python; strong communication skills.
ARM, MIPS, x86_64, UART, JTAG, SWD, oscilloscopes, logic analyzers, C/C++, Python, AI
2mo
Save
Mark Applied
Hide
Security Engineer, Level 5, Detection & Response
Los Angeles or Palo Alto or Santa Monica
$178k-$313k/yr HybridFull Time
6+ YOE6+ years in security fields; strong Python/Go; cloud and OS internals knowledge; threat hunting and incident response.
Python, Go, macOS, Windows, Linux, Kubernetes, AWS, Google Cloud Platform
1mo
Save
Mark Applied
Hide
Security Software Engineer II, Detection and Response
San Francisco or United States
$124k-$255k/yr RemoteFull Time
Experience in intrusion detection and incident response in cloud environments; SIEM query writing, telemetry analysis (EDR, osquery, firewall logs), scripting (Python/Go/Ruby), networking fundamentals, and OS internals (macOS/Linux/Windows).
SIEM, EDR, Osquery, Python, Go, Ruby, MacOS, Linux, Windows, TCP/IP
1w
Save
Mark Applied
Hide
Game Security Software Engineer
El Segundo, California, United States
$146k-$200k/yr OnsiteFull Time
Strong C++ and Windows internals knowledge, ability to analyze x64 assembly, develop user/kernel-mode security features, and design anti-cheat defenses; anti-cheat or kernel-driver experience preferred.
C++, IDA, Ghidra, WinDbg, x64dbg
1mo
Save
Mark Applied
Hide
Senior Game Security Programmer
Montreal or Cary or North America or California or New York or Washington
OnsiteFull Time
Expert C/C++ skills, deep Linux and Windows OS internals knowledge, experience debugging x86-64 binaries, reverse engineering, familiarity with multiplayer architectures and data analytics to detect and prevent cheating.
Unreal Engine 5, Epic Online Services, C, C++, Linux, Windows, x86-64
3w
Save
Mark Applied
Hide
Administrative Business Partner, Cloud Security Engineering
Sunnyvale, California, United States
$96k-$138k/yr OnsiteFull Time
3+ YOE3 years administrative experience in technology or international environments; core tasks include travel coordination, expense reports, calendar management, facilities coordination, event planning; executive support experience preferred.
2mo
Save
Mark Applied
Hide
Staff Software Engineer - Security
San Mateo, California, United States
$220k-$270k/yr HybridFull Time
7+ YOE7+ years in cloud/platform/infrastructure security, strong AWS experience, proficiency with Python or Go, familiarity with SIEM and vulnerability management, experience reviewing system designs/RFCs, and ability to build internal security tooling.
AWS, Python, Go, SIEM, Kubernetes, SSO, SCIM, FedRAMP, SOC 2, ISO 27001, Texas RAMP, CJIS
1d
Save
Mark Applied
Hide
Boeing Summer 2027 Internship Program (Paid) – Information Digital Technology & Security (IDT&S)
Everett or Saint Charles or Mukilteo or Berkeley or Hazelwood or El Segundo or Renton or Seattle or Auburn or Bellevue or Kent or Plano or Arlington or Ridley Park or Tukwila or Mesa or North Charleston
$44k-$89k/yr OnsiteFull Time
Enrolled student eligible to work full-time for 10–12 weeks Summer 2027; majors in computing, data, engineering or related fields preferred; strong academics and teamwork; ability to relocate as needed.
Python
Explore Jobs
Expand Your Job Search
Top Cities in California for Security Engineering Intern
- Security Engineering Intern jobs in Los Angeles, CA
- Security Engineering Intern jobs in San Diego, CA
- Security Engineering Intern jobs in San Jose, CA
- Security Engineering Intern jobs in San Francisco, CA
- Security Engineering Intern jobs in Fresno, CA
- Security Engineering Intern jobs in Sacramento, CA
- Security Engineering Intern jobs in Long Beach, CA
- Security Engineering Intern jobs in Oakland, CA
- Security Engineering Intern jobs in Bakersfield, CA
- Security Engineering Intern jobs in Anaheim, CA
- Security Engineering Intern jobs in Santa Ana, CA
- Security Engineering Intern jobs in Riverside, CA
- Security Engineering Intern jobs in Stockton, CA
- Security Engineering Intern jobs in Chula Vista, CA
- Security Engineering Intern jobs in Irvine, CA
- Security Engineering Intern jobs in Fremont, CA
- Security Engineering Intern jobs in San Bernardino, CA
- Security Engineering Intern jobs in Fontana, CA
- Security Engineering Intern jobs in Modesto, CA
- Security Engineering Intern jobs in Oxnard, CA