Application Security Engineer Job Descriptions, Average Salary, Interview Questions

What Does a Application Security Engineer Do?

An application security engineer’s main job is keeping software and applications safe from cyber threats. They focus on identifying and fixing security vulnerabilities within applications to protect sensitive data and ensure that systems remain secure. This involves conducting regular security tests, like code reviews and penetration testing, to find potential weaknesses. Once vulnerabilities are identified, they work on implementing solutions and best practices to mitigate risks.

Outside of their technical skills, they collaborate with development teams to integrate security measures into the software development lifecycle. They educate and train developers on secure coding practices, helping to create a culture of security awareness within the organization. By staying up-to-date with the latest security trends and technologies, engineers protect applications from cyber threats.

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Application Security Engineer Responsibilities

The day to day for an engineer might change as issues come up but the core responsibilities will usually remain consistent across companies and industries.

The below list represents the most common responsibilities a job may have for an application security engineer:

  • Conduct security assessments: Perform regular security assessments, including code reviews, penetration testing, and vulnerability scanning, to identify potential security weaknesses.
  • Implement security measures: Develop and implement security measures and best practices to protect applications from threats and vulnerabilities.
  • Collaborate with development teams: Work closely with developers to integrate security into the software development lifecycle, providing guidance on secure coding practices.
  • Monitor and respond to security incidents: Continuously monitor applications for security breaches and respond promptly to incidents, mitigating risks and preventing future occurrences.
  • Stay updated on security trends: Keep up to date on the latest security threats, trends, and technologies, ensuring that applications are protected against emerging threats.
  • Provide training and education: Educate and train development teams and other team members on security best practices and the importance of application security.

Application Security Engineer Experience and Expertise

While security engineers need strong technical skills and past experiences they should also have soft skills to work well with other teams and management.

Prior experience

  • Cybersecurity roles: Previous roles in cybersecurity, like security analyst or penetration tester, help build expertise in identifying and mitigating threats.
  • Application development: Experience in software development provides a solid understanding of coding practices and application architectures.
  • Security audits: Experience conducting security audits and assessments to evaluate the security posture of applications.
  • Incident response: Handling security incidents and breaches, providing practical knowledge in managing and resolving security issues.

Technical skills

  • Vulnerability assessment: Proficiency in identifying and mitigating security vulnerabilities using tools and techniques like static code analysis, dynamic testing, and penetration testing.
  • Secure coding practices: Strong knowledge of secure coding standards and practices to prevent common vulnerabilities like SQL injection, cross-site scripting (XSS), and buffer overflows.
  • Security tools: Understanding of tools and platforms such as OWASP ZAP, Burp Suite, SAST/DAST tools, and others.
  • Threat modeling: Ability to perform threat modeling to identify potential security threats and design effective countermeasures.
  • Compliance and standards: Understanding of relevant security standards and regulations like OWASP, NIST, and GDPR.

Soft skills

  • Communication: Needed to communicate security risks and solutions to development teams and stakeholders.
  • Collaboration: Works well with developers, IT staff, and other stakeholders to integrate security into the development process.
  • Attention to detail: Needed in identifying and addressing security vulnerabilities.
  • Problem-solving: Quickly addresses and resolves security issues as they arise.
  • Continuous learning: Stays updated with the latest security trends, threats, and best practices.

Application Security Engineer Education and Certification

Becoming an application security engineer typically requires a combination of some formal education and industry-recognized certifications. The security field in particular places a high emphasis on formal certifications so getting some of these will go a long way to finding a career as an engineer.

Required education:

  • Bachelor’s degree: A bachelor’s degree in computer science, information technology, cybersecurity, or a related field is often required for jobs. This provides a strong foundation in programming, network security, and systems administration.
  • Advanced degrees: Some positions may prefer candidates with a master’s degree in cybersecurity or a related discipline, which can provide deeper knowledge and specialized skills.


  • Certified Information Systems Security Professional (CISSP): This certificate demonstrates a comprehensive understanding of cybersecurity practices and principles, making it highly valued in the industry.
  • Certified Ethical Hacker (CEH): The CEH certification focuses on identifying and addressing vulnerabilities in systems through ethical hacking techniques.
  • Certified Application Security Engineer (CASE): Specifically tailored for application security, this certification covers secure coding practices and application protection strategies.
  • Offensive Security Certified Professional (OSCP): This is a highly certificate respected for its hands-on approach to penetration testing and security assessment.
  • GIAC Web Application Penetration Tester (GWAPT): This certification focuses on web application security and testing, providing skills to identify and mitigate vulnerabilities.
  • CompTIA Security+: A fundamental level certification that covers a wide range of security topics, providing a solid base for further specialization in application security.

Application Security Engineer Compensation

Application security engineer salaries vary by experience, industry, organization size, and geography. To explore salary ranges by local market, please visit our sister site

The average U.S. salary for a MT is:


The average salary for an application security engineer is between $125,000 and $135,000 per year. Compensation can vary based on factors such as location, experience, and the size of the organization. Engineers in larger companies or in urban areas with a higher cost of living tend to earn more. Additionally, those with advanced certifications and extensive experience can command higher salaries.

Sample Job Descriptions

Security jobs will change depending on the company but many of the central requirements will remain the same. Here are some examples of past openings to give an example to go off of.

Retail application security engineer description

ABC company is seeking a skilled application security engineer to join our team and help protect our e-commerce platforms from cyber threats.


  • Conduct regular security assessments, including code reviews and penetration testing, to identify vulnerabilities in our e-commerce applications.
  • Develop and implement security measures and best practices to protect customer data and transaction integrity.
  • Collaborate with development teams to integrate security into the software development lifecycle.
  • Monitor for security incidents and respond promptly to any breaches or threats.
  • Stay updated on the latest security trends and technologies to keep our applications protected.
  • Provide training to development teams on secure coding practices.


  • 3 Years of experience in a security or network capacity
  • Bachelor’s degree in computer science, information technology, cybersecurity, or a related field.
  • CISSP certification
  • Proven experience in application security, preferably in an e-commerce or retail environment.
  • Strong understanding of secure coding practices and security assessment tools.
  • Excellent problem-solving and communication skills.

Preferred Qualifications

  • Master’s degree in cybersecurity or related field.
  • Experience with PCI-DSS compliance.
  • Familiarity with web application firewalls and other security technologies.

SaaS security engineer description

ABC Tech Inc is hiring for a dedicated security engineer to ensure the security of our software-as-a-service applications.


  • Train and supervise lab assistants and other support staff.
  • Perform security assessments and code reviews to identify and mitigate vulnerabilities in our SaaS applications.
  • Implement robust security measures and practices to protect client data and application integrity.
  • Work closely with development teams to integrate security protocols into the software development process.
  • Monitor security alerts and respond to incidents in a timely manner.
  • Stay informed about the latest security threats and technologies to ensure our applications are secure.

Minimum requirements

  • 2+ years of previous experience in a security role.
  • Bachelor’s degree in computer science, information technology, or a related field.
  • Certification as CISSP, CEH, or equivalent.
  • Demonstrated experience in application security within a SaaS environment.
  • Proficiency in using security tools like OWASP ZAP, Burp Suite, etc.
  • Strong analytical and communication skills.

Preferred qualifications

  • Masters degree in the IT field.
  • Knowledge of cloud security practices and technologies.
  • Experience with DevSecOps practices and tools.

Application security description in hospitality

ABC restaurants is seeking an application security engineer to safeguard our internal management applications and customer data.


  • Perform a wide range of lab tests and analyses on patient samples.
  • Perform thorough security assessments, including vulnerability scans, on our hospitality management applications.
  • Develop and implement security strategies to protect guest data and system integrity.
  • Collaborate with software developers to incorporate security measures into the development lifecycle.
  • Educate and train development teams on secure coding practices and security awareness.
  • Monitor for security breaches and respond quickly to any incidents.
  • Keep abreast of emerging security threats and update our security protocols accordingly.


  • 2+ years in a security focused role.
  • 4+ years of network infrastructure experience.
  • Experience in application security, particularly in the hospitality or related industry.
  • Strong knowledge of secure coding standards and vulnerability assessment tools.
  • Excellent problem-solving abilities and strong communication skills.
  • Ability to work independently and in a team.
  • Certifications in the industry preferred.

Application Security Engineer Interview Questions

  • Can you describe your experience with identifying and mitigating security vulnerabilities in applications?
  • What tools and techniques do you use for conducting code reviews and penetration testing?
  • How do you stay current with the latest security threats and trends in the industry?
  • Can you provide an example of a significant security issue you discovered and how you resolved it?
  • How do you integrate security best practices into the software development lifecycle?
  • Describe a time when you had to educate and train developers on secure coding practices. How did you approach it?
  • How do you handle situations where there is resistance to implementing security measures within a development team?

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