Senior Product Security Engineer, Application Security (Remote)

CrowdStrike; United States; On-site; USD 160,000 - 250,000; Full time

Job summary

CrowdStrike in the United States is seeking a Senior Application Security Engineer to protect our applications and ship secure code on a mission-driven platform. You will dig into web apps, fix defects, and influence security across engineering teams.

You will build threat models, review code in Go, Python, or JavaScript, and help harden our products while automating security tasks and driving secure development practices.

Qualifications

• 10+ years in CyberSecurity with ability to identify defects and work with engineering teams to fix them.
• Deep understanding of software product lifecycles in Agile/DevOps environments.
• Experience with threat modeling frameworks, especially STRIDE.
• Proven hands-on secure code review for apps built with Go, Python, or JavaScript.
• Strong browser security expertise across Chrome/Firefox on desktop and mobile (TypeScript, React, Node.js, Electron).
• Experience reviewing and testing API endpoint security.
• Working knowledge of cloud-native and containerized apps in AWS, Azure, GCP.
• Experience using/applying SAST, DAST, CSPM, DSPM, ASPM suites.
• Solid understanding of common weaknesses beyond OWASP Top 10 and app penetration testing.
• Demonstrated ability to collaborate across technical teams.

Responsibilities

• Join engineering teams as a security expert and advisor, shaping product security.
• Create and mature threat models to reduce attack surface.
• Review application source code for security defects and risks.
• Attack applications throughout the Secure Development LifeCycle.
• Work with developers to explain defects and implement proven fixes.
• Build integrated tools and automation to aid security.
• Lead bug bounty responses, hunt for similar issues, strengthen app security.

Skills

Cybersecurity experience

Agile/DevOps

Threat modeling STRIDE

Secure code review (Go/Python/JS)

Browser security (TypeScript/React/JS)

API security testing

Cloud-native / multi-cloud

AppSec tooling (SAST/DAST/CSPM/DSPM/AS

OWASP & AppPenTesting

Cross-team collaboration

Automation for AppSec tasks

AI for security workflows

Tools

SAST

DAST

CSPM

DSPM

ASPM

Job description

As a global leader in cybersecurity, CrowdStrike protects the people, processes and technologies that drive modern organizations. Since 2011, our mission hasn't changed — we’re here to stop breaches, and we've redefined modern security with the world's most advanced AI-native platform. We work on large scale distributed systems, processing almost 3 trillion events per day and this traffic is growing daily. Our customers span all industries, and they count on CrowdStrike to keep their businesses running, their communities safe and their lives moving forward. We're proud to work for a mission-driven company leveraging AI to transform the way we work. CrowdStrikers drive their careers through flexibility and autonomy while also being expected to contribute to a culture of responsible AI adoption, experimentation, and innovation. We use an AI-first mindset as a force multiplier to proactively and continuously accelerate execution, build expertise, uncover insights, and solve complex problems. We’re always looking to add talented CrowdStrikers to the team who have limitless passion, a relentless focus on innovation and a fanatical commitment to our customers, our community and each other. Ready to join a mission that matters? The future of cybersecurity starts with you.

About The Role:

Help us protect CrowdStrike and its customers from the most advanced threats by securing our applications. CrowdStrike’s Product Security team breaks the mold of traditional internal security, and focuses on active threats to CrowdStrike’s products. As a Senior Application Security Engineer you will dig deep into web applications, find design and implementation flaws, help our product engineers fix defects, and play a role in shipping secure code. You’ll be actively involved in fixing defects rather than just reporting them and hoping for the best. Additionally, you will be integral to cross-cutting projects to further harden internal systems and processes against active and emerging threats.

What You’ll Do:

• Join engineering teams working on applications as a security expert and advisor, influencing the design and capabilities of our products
• Create, maintain, and mature threat models to drive security architecture review and eliminate threat surface area
• Review application source code, looking for security defects and risk
• Attack applications throughout the Secure Development LifeCycle
• Work with developers to help them understand defects, risks, design weaknesses, etc. and implement proven solutions
• Build integrated tools and automation to make life easier for you, your team, and our engineering partners
• Drive response efforts to our bug bounty program, hunt for similar issues across the platform, and improve the security of our applications

What You’ll Need:

• 10+ years of experience in CyberSecurity, with expertise in identifing security defects and engage with engineering teams to find solutions
• A deep understanding of how software products are created and shipped in Agile/DevOps like environments
• Experience with threat model framework(s), especially using STRIDE
• Proven experience in manual secure code review for apps built with Go (Golang), Python, or JavaScript
• Deep expertise in browser security implementations across platforms (Chrome, Firefox, etc. for desktop and mobile) with strong experience across the following: TypeScript, React, Node.js, Electron
• Demonstrable proficiency in hands-on review and testing of API endpoint security
• A working knowledge of secure configuration of cloud-native and containerized apps in multiple Cloud environments (GCP, Azure, AWS)
• Experience using and/or maintaining commercially available AppSec tools like SAST, DAST, CSPM, DSPM, and ASPM suites
• A solid understanding of common software weaknesses that impact cloud and web applications (not just the OWASP Top 10) and demonstrable experience in application penetration testing
• Examples of collaborating across technical teams: asking technical questions, challenging assumptions, getting or providing context for decisions, etc.
• Demonstrable experience developing/maintaining automation for application security tasks and defect identification.
• Proven experience utilizing AI technologies to enhance decision-making, streamline workflows and processes, improve efficiency and drive business outcomes.

Bonus Points:

• Experience working at extremely large scale
• Comfortable with ambiguity and capable of determining direction
• Example(s) of having a positive working relationship with product engineers (software product development experience is a huge bonus)
• Deep knowledge of Docker and Kubernetes (k8s)
• Experience with WebAssembly (WASM), Kotlin, or Scala
• Engaged in providing security enhancements to open source projects
• Experience in mentoring, coaching, and/or improving team culture

Education/Certifications:

Technical security certifications or academic background are a plus.

Benefits Of Working At CrowdStrike:

• Market leader in compensation and equity awards
• Comprehensive physical and mental wellness programs
• Competitive vacation and holidays for recharge
• Paid parental and adoption leaves
• Professional development opportunities for all employees regardless of level or role
• Employee Networks, geographic neighborhood groups, and volunteer opportunities to build connections
• Vibrant office culture with world class amenities
• Great Place to Work Certified across the globe

CrowdStrike is proud to be an equal opportunity employer. We are committed to fostering a culture of belonging where everyone is valued for who they are and empowered to succeed. We support veterans and individuals with disabilities through our affirmative action program.

CrowdStrike is committed to providing equal employment opportunity for all employees and applicants for employment. The Company does not discriminate in employment opportunities or practices on the basis of race, color, creed, ethnicity, religion, sex (including pregnancy or pregnancy-related medical conditions), sexual orientation, gender identity, marital or family status, veteran status, age, national origin, ancestry, physical disability (including HIV and AIDS), mental disability, medical condition, genetic information, membership or activity in a local human rights commission, status with regard to public assistance, or any other characteristic protected by law. We base all employment decisions--including recruitment, selection, training compensation, benefits, discipline, promotions, transfers lay-offs, return from lay-off, terminations and social recreational programs--on valid job requirements.

If you need assistance accessing or reviewing the information on this website or need help submitting an application for employment or requesting an accommodation, please contact us at [e-mail] for further assistance.

Find out more about your rights as an applicant.

CrowdStrike participates in the E-Verify program.

Notice of E-Verify Participation

Right to Work

CrowdStrike, Inc. is committed to fair and equitable compensation practices. Placement within the pay range is dependent on a variety of factors including, but not limited to, relevant work experience, skills, certifications, job level, supervisory status, and location. The base salary range for this position for all U.S. candidates is $160,000 - $250,000 per year, with eligibility for bonuses, equity grants and a comprehensive benefits package that includes health insurance, 401k and paid time off.

For detailed information about the U.S. benefits package, please click here.

Expected Close Date of Job Posting is:09-29-2026,

Education/Certifications:

Technical security certifications or academic background are a plus.