principal security engineer Jobs in california

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Associate Cybersecurity Engineer - Network Security Monitoring

Visa Inc.

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Foster City, California, USA

Full-time

Company Description Visa is a world leader in payments and technology, with over 259 billion payments transactions flowing safely between consumers, merchants, financial institutions, and government entities in more than 200 countries and territories each year. Our mission is to connect the world through the most innovative, convenient, reliable, and secure payments network, enabling individuals, businesses, and economies to thrive while driven by a common purpose - to uplift everyone, everywhe
Posted 9 days ago | Updated 10 hours ago

Sr Staff Software Engineer (Agent Security). (Fullstack - REACT, Java)

PaloAlto Networks

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Santa Clara, California, USA

Full-time

Company Description Our Mission At Palo Alto Networks everything starts and ends with our mission: Being the cybersecurity partner of choice, protecting our digital way of life. Our vision is a world where each day is safer and more secure than the one before. We are a company built on the foundation of challenging and disrupting the way things are done, and we're looking for innovators who are as committed to shaping the future of cybersecurity as we are. Who We Are We take our mission of
Posted 8 days ago | Updated 10 hours ago

Senior Application Security Engineer

Roblox

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San Mateo, California, USA

Full-time

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences- all created by our global community of developers and creators. At Roblox, we're building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device.We're on a mission to connect a billion people with op
Posted 23 days ago | Updated 10 hours ago

Senior Security Engineer (SIEM / SOAR / Data Pipeline) - Northeast region (Remote)

GuidePoint Security

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Remote

Full-time

GuidePoint Security provides trusted cybersecurity expertise, solutions and services that help organizations make better decisions and minimize risk. By taking a three-tiered, holistic approach for evaluating security posture and ecosystems, GuidePoint enables some of the nation's top organizations, such as Fortune 500 companies and U.S. government agencies, to identify threats, optimize resources and integrate best-fit solutions that mitigate risk. About the Role We are seeking an experienced
Posted 24 days ago | Updated 7 hours ago

Security Engineer, Cloud Infrastructure

Nuro Inc.

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Mountain View, California, USA

Full-time

Who We Are Nuro is a self-driving technology company on a mission to make autonomy accessible to all. Founded in 2016, Nuro is building the world's most scalable driver, combining cutting-edge AI with automotive-grade hardware. Nuro licenses its core technology, the Nuro Driver , to support a wide range of applications, from robotaxis and commercial fleets to personally owned vehicles. With technology proven over years of self-driving deployments, Nuro gives the automakers and mobility platforms
Posted 10 days ago | Updated 10 hours ago

Mainframe Security Engineer

ApTask

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Remote

Contract, Third Party

Role: Mainframe Security Engineer Role Address: Alpharetta, GA Duration: 3 years Contract The Mainframe Computing Security team is responsible for engineering and managing various mainframe authentication and authorization systems. This position is for a senior engineer in Tooling and Project team responsible to design and execute projects aligned to TopSecret security products and other platform integration solutions. The ideal candidate will be working closely with other infrastructure team
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Posted 32 days ago | Updated 24 days ago

Security Engineer

Pax8

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Remote or Greenwood Village, Colorado, USA

Full-time

Pax8 is the leading cloud-based technology marketplace, simplifying the cloud journey for our partners by integrating technology, business intelligence and proactive service to deliver an unparalleled experience. Serving thousands of partners through the indirect sales channel, our mission is to build the technology marketplace of the future. We are a fast-growing, dynamic and high-energy startup organization, allowing you to make a meaningful impact on the business. Culture is important to us,
Posted 39 days ago | Updated 7 hours ago

Senior Software Engineer, Security and Reliability

Cisco Systems, Inc.

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San Francisco, California, USA

Full-time

Who We Are Cisco ThousandEyes is a Digital Experience Assurance platform that empowers organizations to deliver flawless digital experiences across every network - even the ones they don't own. Powered by AI and an unmatched set of cloud, internet and enterprise network telemetry data, ThousandEyes enables IT teams to proactively detect, diagnose, and remediate issues - before they impact end- user experiences. ThousandEyes is deeply integrated across the entire Cisco technology portfolio and
Posted 20 days ago | Updated 10 hours ago

Senior Security Engineer (Incident Response & Automations)

Headway

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Remote or New York, New York, USA

Full-time

Headway's mission is a big one - to build a new mental health care system everyone can access. We've built technology that helps people find great therapists with the first software-enabled national network of providers accepting insurance. 1 in 4 people in the US have a treatable mental health condition, but the majority of providers don't accept insurance, making therapy too expensive for most people. Headway is building a new mental healthcare system that everyone can access by making it easy
Posted 20 days ago | Updated 10 hours ago

Senior Product Security Engineer, Bug Bounty Operations

DigitalOcean

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San Francisco, California, USA

Full-time

Dive in and do the best work of your career at DigitalOcean. Journey alongside a strong community of top talent who are relentless in their drive to build the simplest scalable cloud. If you have a growth mindset, naturally like to think big and bold, and are energized by the fast-paced environment of a true industry disruptor, you'll find your place here. We value winning together-while learning, having fun, and making a profound difference for the dreamers and builders in the world. We're look
Posted 24 days ago | Updated 10 hours ago

Senior Security Engineer, Offensive Security

Rippling

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Remote

Full-time

About Rippling Rippling gives businesses one place to run HR, IT, and Finance. It brings together all of the workforce systems that are normally scattered across a company, like payroll, expenses, benefits, and computers. For the first time ever, you can manage and automate every part of the employee lifecycle in a single system. Take onboarding, for example. With Rippling, you can hire a new employee anywhere in the world and set up their payroll, corporate card, computer, benefits, and even
Posted 23 days ago | Updated 10 hours ago

Systems Engineer Vulnerability Security / Contract / Remote

Motion Recruitment Partners, LLC

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Remote or Boston, Massachusetts, USA

Full-time

We are partnering with a leading healthcare organization in New York City to build a Vulnerability Remediation Tiger Team. This is a 6-month engagement focused on addressing critical vulnerabilities across a massive and complex IT environment, spanning on-premise systems, cloud infrastructure, and networking. This is an opportunity to be part of a fully supported, high-priority Tiger Team reporting directly to the CISO's office. You'll work in a fast-paced, Scrum-style environment with the abili
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Posted 6 days ago | Updated 7 hours ago

Senior Staff Software Engineer (Cloud NW & AI Security)

PaloAlto Networks

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Santa Clara, California, USA

Full-time

Company Description Our Mission At Palo Alto Networks everything starts and ends with our mission: Being the cybersecurity partner of choice, protecting our digital way of life. Our vision is a world where each day is safer and more secure than the one before. We are a company built on the foundation of challenging and disrupting the way things are done, and we're looking for innovators who are as committed to shaping the future of cybersecurity as we are. Who We Are We take our mission of
Posted 27 days ago | Updated 10 hours ago

Senior Enterprise Security Engineer (InfoSec)

PaloAlto Networks

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Santa Clara, California, USA

Full-time

Company Description Our Mission At Palo Alto Networks everything starts and ends with our mission: Being the cybersecurity partner of choice, protecting our digital way of life. Our vision is a world where each day is safer and more secure than the one before. We are a company built on the foundation of challenging and disrupting the way things are done, and we're looking for innovators who are as committed to shaping the future of cybersecurity as we are. Who We Are We take our mission of
Posted 24 days ago | Updated 10 hours ago

Software Engineer Graduate (Privacy & Security) - 2026 Start (BS/MS)

TikTok

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San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A114038 Apply to this job Share this listing: Responsibilities TikTok Privacy & Security team is responsible for building compliant and user-friendly privacy solutions for TikTok, with the goal of building trust among TikTok users, regulators, and the public. The team is working on TikTok's privacy-related products, including user/underage protection, data access controls, data retention policies etc. We are looking for talented ind
Posted 10 hours ago

Sr. Security BI Engineer

Veear

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Oakland, California, USA

Contract

The Senior analyst will provide support to advance security risk reduction across the Enterprise. This position will work closely with internal leaders and subject matter experts while interacting with other stakeholders across the Company to build visuals, dashboards and other products to support security program Conducts analysis on variances, forecasts and risk reduction trends. Monitors and reports on operational, productivity and efficiency metrics and scorecards. Works closely with our
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Posted 41 days ago | Updated 3 hours ago

Senior Network Security Engineer

Centene Corporation

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Missouri, USA

Full-time

You could be the one who changes everything for our 28 million members by using technology to improve health outcomes around the world. As a diversified, national organization, Centene's technology professionals have access to competitive benefits including a fresh perspective on workplace flexibility. Position Purpose: A Senior Network Security Engineer is expected to be knowledgeable in all aspects of firewall deployment, configuring, and management. This expertise includes policies, and thr
Posted 15 days ago | Updated 10 hours ago

Application Security Engineer/ Hybrid in Atlanta & Dallas 2-3 days/ 6 Month Contract to Hire

Motion Recruitment Partners, LLC

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Los Angeles, California, USA

Full-time

A global tech-driven organization in hiring a hybrid Application Security Engineer on a 6-month contract-to-hire basis. This role is based in Dallas or Atlanta and offers a flexible hybrid setup. You'll help secure modern cloud applications running across AWS, Azure, or Google Cloud Platform. This is a hands-on opportunity to shape security in a fast-moving product environment. You'll lead threat modeling, code reviews, and guide secure development across global teams. Ideal for someone with a s
Easy Apply
Posted 41 days ago | Updated 7 hours ago

Security Engineer Graduate (BRIC Anti-Automation) - 2026 Start (BS/MS)

TikTok

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San Jose, California, USA

Full-time

Location : San Jose Employment Type : Regular Job Code : A221739 Apply to this job Share this listing: Responsibilities Anti-Automation Solutions (AA) is part of Business Integrated Risk Control(BRIC) team. Automated fraud refers to technical methods used by hackers to perform API abuse at scale using scripts and tools. Our vision is to establish an industry-leading team with a focus on end-to-end defense-in-depth systems with privacy and business needs in mind. We are responsible for con
Posted 10 hours ago

Data Engineer Intern (TikTok-Privacy and Security-Data Infra) - 2026 Summer(BS/MS)

TikTok

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San Jose, California, USA

Full-time

Location : San Jose Employment Type : Intern Job Code : A02944 Apply to this job Share this listing: Responsibilities The Data Infra, Privacy & Security team is missioned to ensure the safety of company-level big data products and compliance with local principals and regulations. We are adding privacy features to TikTok tech stack, and building world-class data security & privacy framework on top big data technology. It's an emerging area where many companies and industry are heavily inve
Posted 10 hours ago