Application Security Engineer

Posted Yesterday
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Herzliya, ISR
In-Office
Mid level
AdTech • Marketing Tech
The Role
Lead application and product security across the SDLC: threat modeling, architecture reviews, code reviews, vulnerability scanning, pentesting, incident response, automation of security in CI/CD, and developer training to enforce secure-by-design practices.
Summary Generated by Built In

AppsFlyer’s Security team is looking for a highly skilled and security-savvy Application Security Engineer to lead our product and application security efforts. In this role, you will drive security design, ensure secure coding practices, and validate our services and environments against the highest security standards.

You will work closely with our R&D and Product teams to identify, mitigate, and prevent security risks throughout the software development lifecycle (SDLC). You will own security initiatives, mentor developers on security best practices, and play a key role in shaping the security posture of AppsFlyer’s products.

The ideal candidate is highly motivated, eager to learn, and has a “security by design” mindset. This role provides career growth opportunities, enabling you to deepen your expertise in AppSec, DevSecOps, and cloud security.

What you'll do:

  • Partner with development and product teams to integrate security best practices into the SDLC
  • Lead threat modeling and architecture security reviews to proactively identify and mitigate risks
  • Conduct security assessments, including code reviews, vulnerability scans, penetration testing, and secure product design reviews
  • Stay up to date with emerging security threats, vulnerabilities, and industry trends, ensuring AppsFlyer remains ahead of evolving risks.
  • Support and contribute to security incident response activities, including root cause analysis and post-incident improvements
  • Automate security processes and integrate security tools within CI/CD pipelines
  • Develop and deliver secure coding training to engineering teams

What you have:

  • 3+ years of experience in Application Security, Penetration Testing, or Product Security in a SaaS company
  • Deep understanding and hands-on experience of web application security, including OWASP Top 10, authentication, encryption, and secure coding principles
  • Proficiency in scripting or programming languages (Terraform, Python, JavaScript, Go, etc.) for security automation and infrastructure.
  • Experience with cloud security best practices (AWS, GCP, or Azure)
  • Strong communication skills, with the ability to explain security risks and recommendations to technical and non-technical stakeholders, including executive management
  • Experience working with large-scale, complex R&D environments

Bonus Points:

  • Hands-on experience with DevSecOps and integrating security tools into CI/CD pipelines
  • Bachelor's degree in Computer Science, Information Security, or a related field (or equivalent experience)
  • Being introduced by an AppsFlyer team member 

As a global company operating from 25 offices across 19 countries, we reflect the human mosaic of the diverse and multicultural world in which we live. We ensure equal opportunities for all of our employees and promote the recruitment of diverse talents to our global teams without consideration of race, gender, culture, or sexual orientation. We value and encourage curiosity, diversity, and innovation from all our employees, customers, and partners.

“As a Customer Obsessed company, we must first be Employee Obsessed. We need to make sure that we provide the team with the tools and resources they need to go All-In.” Oren Kaniel, CEO

Skills Required

  • 3+ years in Application Security, Penetration Testing, or Product Security in a SaaS company
  • Deep understanding and hands-on experience with web application security (OWASP Top 10, authentication, encryption, secure coding)
  • Proficiency in scripting or programming for security automation and infrastructure (Terraform, Python, JavaScript, Go)
  • Experience with cloud security best practices (AWS, GCP, or Azure)
  • Strong communication skills to explain security risks to technical and non-technical stakeholders
  • Experience working with large-scale, complex R&D environments
  • Hands-on experience integrating security tools into CI/CD pipelines and DevSecOps practices
  • Bachelor's degree in Computer Science, Information Security, or related field (or equivalent experience)
  • Referral/introduction by an AppsFlyer team member

AppsFlyer Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about AppsFlyer and has not been reviewed or approved by AppsFlyer.

  • Wellbeing & Lifestyle Benefits Wellbeing support is positioned as a meaningful part of the rewards package, including private health insurance and wellness offerings like fitness classes. Additional extras such as events, work‑from‑home support, and global mobility opportunities are portrayed as adding tangible value beyond cash compensation.
  • Equity Value & Accessibility Equity is framed as broadly accessible, with stock options described as available to all employees. This expands the total rewards mix and can make overall compensation feel stronger even when salary alone is debated.
  • Strong & Reliable Incentives Total compensation in certain technical and revenue roles is presented as capable of reaching competitive levels, implying meaningful upside where role/market fit is strong. Sales compensation is described as potentially attractive on-target, which can reinforce perceived earning opportunity when performance aligns with plan design.

AppsFlyer Insights

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The Company
HQ: San Francisco, CA
1,625 Employees
Year Founded: 2011

What We Do

AppsFlyer helps brands make good choices for their business and their customers through innovative, privacy-preserving measurement, analytics, fraud protection, and engagement technologies. Built on the idea that brands can increase customer privacy while providing exceptional experiences, AppsFlyer empowers thousands of creators and 8,000+ technology partners to create better, more meaningful customer relationships. To learn more, visit www.appsflyer.com.

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