Software Security jobs in California

New Graduate Engineer, Software Security - '26/'27 (Starlink)

Hawthorne, California

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Today

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. NEW GRADUATE ENGINEER, SOFTWARE SECURITY - '26/'27 (STARLINK) At SpaceX we're leveraging our experience in building rockets and spacecraft to deploy Starlink, the world's most advanced broadband internet system. Starl

Full-time

USD 140,000.00 - 175,000.00 per year

New Graduate Engineer, Software Security - '26/'27 (Starlink)

Palo Alto, California

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Today

Full-time

USD 140,000.00 - 175,000.00 per year

Sr. Security Software Engineer (Starlink)

Hawthorne, California

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Today

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SR. SOFTWARE SECURITY ENGINEER (STARLINK) At SpaceX we're leveraging our experience in building rockets and spacecraft to deploy Starlink, the world's most advanced broadband internet system. Starlink is the world's l

Full-time

USD 170,000.00 - 265,000.00 per year

Senior Principal Software Security Engineer

Remote or San Jose, California

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Today

Date Posted: 2026-05-26 Country: United States of America Location: US-AZ-TUCSON-801 ~ 1151 E Hermans Rd ~ BLDG 801 (External Site) Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date At

Full-time

USD 132,400.00 - 251,600.00 per year

Software Security Engineer

Torrance, California

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Today

About the job Software Security Engineer About Castelion Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. Were designing, building, and testing next generation long range strike weapon systems to give America and its Allies a definitive edge and deter future conflicts. Software Security Engineer As a Software Secur

Full-time

USD 150,000.00 - 200,000.00 per year

SOFTWARE SECURITY ANALYST/DEVELOPER - ACS WEB

Remote

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Today

Job Description and Tasks: Serve as Software Security Analyst and developer overseeing/managing the scanning for and resolution of application security vulnerabilities, as needed, while also performing Operation and Maintenance (O&M) software development activities. Work with the team and IRS personnel to ensure that application vulnerabilities are resolved prior to any software release and create plan of action and milestones for vulnerabilities that will not be resolved until a later release.

Full-time

Software Engineer (Agent Security)

Santa Clara, California

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Today

Job Description Responsibility Build AI security solutions for enterprise customers. Design and implement security controls for agentic AI systems, including agents, tools, and agent-to-agent interactions. Work cross-functionally with PM and QA teams to deliver secure and scalable solutions. Develop pre-sales and post-sales tools and environments to support customer evaluations, deployments, troubleshooting, and integration.Research emerging technologies and security trends to identify new oppo

Full-time

Sr. Security Software Engineer (Starlink)

Palo Alto, California

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Today

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SR. SOFTWARE SECURITY ENGINEER (STARLINK) At SpaceX we're leveraging our experience in building rockets and spacecraft to deploy Starlink, the world's most advanced broadband internet system. Starlink is the world's l

Full-time

USD 180,000.00 - 280,000.00 per year

Staff Software Engineer (Agent Security)

Santa Clara, California

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Today

Full-time

Software Engineer, Security - Insider Risk - Global Security Organization

San Jose, California

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Today

Responsibilities The mission of TikTok's Global Security Organization is to build and earn trust by reducing risk and securing our businesses and products. Also known as "GSO", this team is the foundation of our efforts to keep TikTok safe, secure, and operating at scale for over 1 billion people around the world. We work to ensure that the TikTok platform is safe and secure, that our users' experience and their data remain safe from external or internal threats, and that we comply with global

Full-time

USD 162,000.00 - 316,800.00 per year

Software Development Engineer, Security Platform

San Francisco, California

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30+d ago

About Us Twitch is the world's biggest live streaming service, with global communities built around gaming, entertainment, music, sports, cooking, and more. It is where thousands of communities come together for whatever, every day. We're about community, inside and out. You'll find coworkers who are eager to team up, collaborate, and smash (or elegantly solve) problems together. We're on a quest to empower live communities, so if this sounds good to you, see what we're up to on LinkedIn and X

Full-time

USD 143,700.00 - 194,400.00 per year

Security Software Engineer (L6), Security Protocols & Foundations

Remote

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Today

At Netflix, our mission is to entertain the world. Together, we are writing the next episode - pushing the boundaries of storytelling, global fandom and making the unimaginable a reality. We are a dream team obsessed with the uncomfortable excitement of discovering what happens when you merge creativity, intuition and cutting-edge technology. Come be a part of what's next. Open Connect (OC) is a critical group within Netflix that builds and manages a content delivery network (CDN) that delivers

Full-time

USD 499,000.00 - 900,000.00 per year

Software Product Security Engineer - HP IQ

San Francisco, California

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Today

Software Product Security Engineer - HP IQ Description - About the Role As a Software Engineer specializing in Device Security, you will contribute to building secure, privacy-focused technologies for HP IQ's next generation of AI-enabled devices. You'll work alongside experienced security, firmware, operating system, hardware, and cloud engineers to help protect customer data and strengthen the security of our products. In this role, you'll develop and implement security features across embed

Full-time

USD 107,400.00 - 155,700.00 per year

Security Software Engineer (Starshield)

Hawthorne, California

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Today

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. SECURITY SOFTWARE ENGINEER (STARSHIELD) Starshield leverages SpaceX's Starlink technology and launch capability to support national security efforts. While Starlink is designed for consumer and commercial use, Starshi

Full-time

USD 130,000.00 - 160,000.00 per year

Software Supply Chain Security Engineer

Sunnyvale, California

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Today

Cerebras Systems builds the world's largest AI chip, 56 times larger than GPUs. This architecture allows Cerebras to deliver industry-leading training and inference speeds; over 10 times faster than GPU-based hyperscale cloud inference services. This order of magnitude increase in speed is transforming the user experience of AI applications, unlocking real-time iteration and increasing intelligence via additional agentic computation. Cerebras works with the leading model labs, global enterprise

Full-time

Sr. Security Software Engineer, Security Operations

Remote or San Francisco, California

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Today

About Pinterest: Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we're on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product. Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other's unique experiences and embrace the flexibility

Full-time

USD 155,584.00 - 320,320.00 per year

Senior Software Engineer (Security)

Remote or Campbell, California

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Today

Company Description About Mirantis Mirantis, an IREN company, is the Kubernetes-native AI infrastructure company, enabling organizations to build and operate scalable, secure, and sovereign infrastructure for modern AI, machine learning, and data-intensive applications. By combining open source innovation with deep expertise in Kubernetes orchestration, Mirantis empowers platform engineering teams to deliver composable, production-ready developer platforms across any environment-on-premises, i

Full-time

New Graduate Engineer, Security Software (Starshield)

Hawthorne, California

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Today

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. NEW GRADUATE ENGINEER, SECURITY SOFTWARE - '26/'27 (STARSHIELD) Starshield leverages SpaceX's Starlink technology and launch capability to support national security efforts. While Starlink is designed for consumer and

Full-time

USD 130,000.00 - 160,000.00 per year

AI Security Software Engineer (Starshield)

Hawthorne, California

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Today

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars. AI SECURITY SOFTWARE ENGINEER (STARSHIELD) AI is rapidly transforming the national security landscape. SpaceX needs to lead the way by developing AI solutions to solve the most pressing security problems. We can no lo

Full-time

USD 130,000.00 - 160,000.00 per year

Embedded Security Software Engineer II (Onsite)

Remote or Tucson, Arizona

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Today

Date Posted: 2026-10-08 Country: United States of America Location: US-AZ-TUCSON-800 ~ 1151 E Hermans Rd ~ BLDG 800 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required after day 1 Are you ready to explore the world of aerospace and defense?

Full-time

USD 68,900.00 - 131,100.00 per year

Software Security jobs in California, USA