Application Security Engineer
Senior

Application Security Engineer

An Application Security Engineer plays a crucial role in ensuring the safety and security of software applications. They are responsible for identifying and mitigating security vulnerabilities throughout the software development lifecycle. This role involves working closely with development teams to integrate robust security measures into the code, conducting regular security assessments, and staying updated with the latest security threats and technologies. The goal of an Application Security Engineer is to protect against potential breaches and ensure that applications meet stringent security standards, safeguarding both the organization's data and its users.

Wages Comparison for Application Security Engineer

Local Staff

Vintti

Annual Wage

$98000

$39200

Hourly Wage

$47.12

$18.85

* Salaries shown are estimates. Actual savings may be even greater. Please schedule a consultation to receive detailed information tailored to your needs.

Interview Questions for a Application Security Engineer: How to Hire the Right Candidate.

When you’re recruiting for , asking the right questions during the interview is key to understanding whether the candidate has both the technical expertise and the soft skills needed to succeed in the role. A job title on a résumé can tell you what someone has done, but it’s the interview that reveals how they think, solve problems, and fit into your team’s culture.

The following list of questions is designed to help you go beyond surface-level answers. They will give you a clearer picture of the candidate’s experience, their approach to common challenges, and how prepared they are to take on the responsibilities in your organization.

Technical Skills and Knowledge Questions

- Can you explain the difference between symmetric and asymmetric encryption, and provide examples of when you would use each?
- How would you conduct a threat modeling exercise for a new web application, and what key factors would you consider?
- Describe the process you would follow to perform a security code review. What specific vulnerabilities would you be looking for?
- Explain how cross-site scripting (XSS) attacks work and describe the best practices for preventing them in web applications.
- What steps would you take to secure RESTful APIs, and how would you test their security?
- Can you discuss some common OWASP Top Ten security risks and how you would mitigate them in an application?
- How do you handle and store sensitive data in compliance with GDPR or other relevant data protection regulations?
- Describe your experience with secure coding practices in one or more programming languages and the tools you use to ensure these practices are followed.
- Have you ever implemented multi-factor authentication (MFA) in an application? If so, can you describe the process and challenges?
- Explain what a SQL injection attack is and how you would detect and prevent it in a web application.

Problem-Solving and Innovation Questions

- Describe a time when you identified a security vulnerability in an application. What steps did you take to resolve it, and what was the outcome?
- Can you provide an example of how you creatively solved a complex security problem that others were unable to resolve?
- What is the most innovative security solution you have implemented in an application, and what was the impact?
- Explain a situation where you had to address multiple conflicting security concerns. How did you prioritize and solve the issues?
- Describe a challenging security breach or incident you handled. What was your approach to mitigate the risks and prevent future occurrences?
- How do you stay current with new security threats, and how have you applied innovative solutions to address emerging risks?
- Can you discuss a time when you had to convince stakeholders to adopt a novel security practice or technology? How did you demonstrate its value?
- How would you approach designing a security strategy for a new application from scratch? What innovative methods would you incorporate, and why?
- Describe a scenario where an existing security framework was insufficient. How did you adapt or augment it to meet the application’s security needs?
- Can you detail an instance where you automated a security process to improve efficiency and effectiveness? What tools or technologies did you use, and what were the results?

Communication and Teamwork Questions

- Can you describe a time when you had to communicate complex security concepts to a non-technical team? How did you approach it?
- How do you handle disagreements or conflicting opinions within your team?
- Can you share an example of a successful collaboration with other departments to enhance application security?
- Describe a situation where you had to give or receive constructive feedback in your role. How did you ensure it was effective?
- How do you prioritize and communicate security risks to stakeholders who may not have a technical background?
- Can you discuss a time when you led a project or initiative to improve security? How did you ensure all team members were aligned and motivated?
- How do you stay updated with the latest security trends and best practices? How do you share this information with your team?
- Describe an instance where you had to mentor or train a colleague on security practices. What was your approach?
- How do you manage your interactions with development teams to ensure security practices are integrated without hindering their work?
- Can you provide an example of a critical application security incident? How did you coordinate and communicate with your team to resolve it?

Project and Resource Management Questions

- Can you describe a specific project where you successfully managed application security from inception to completion?
- How do you prioritize tasks and allocate resources when managing multiple security projects simultaneously?
- Describe a time when you had to adjust your project plan due to unforeseen security vulnerabilities. How did you handle it?
- How do you balance resource allocation between long-term security projects and immediate threat responses?
- What is your approach to integrating application security tasks into agile or DevOps workflows?
- How do you ensure effective communication and collaboration between different teams (e.g., developers, QA, operations) during a security project?
- How do you measure the success and effectiveness of application security initiatives you manage?
- Can you provide an example of how you managed budget constraints while ensuring the security needs of a project were met?
- Describe your experience with onboarding and training new team members for application security projects.
- How do you handle stakeholder expectations and reporting on the progress of security projects?

Ethics and Compliance Questions

- How do you balance the need for security with respect for user privacy?
- Can you describe a time when you had to report a security vulnerability that could potentially expose sensitive data? How did you handle it?
- What steps do you take to ensure compliance with regulatory requirements like GDPR, HIPAA, or PCI-DSS in your security practices?
- How do you approach the ethical implications of hacking or penetration testing?
- Have you ever faced a situation where you were asked to compromise on security standards? How did you respond?
- What is your process for staying updated with changes in laws and regulations related to application security?
- How do you ensure that third-party vendors comply with your organization's security policies?
- Can you provide an example of when you found a conflict between business goals and security best practices? How did you resolve it?
- How do you advocate for ethical security practices within a team or organization?
- In your view, what are the ethical responsibilities of an Application Security Engineer?

Professional Growth and Adaptability Questions

- Can you describe a time when you had to quickly adapt to a significant change in security protocols or regulations? How did you manage it?
- How do you stay updated with the latest trends and developments in application security?
- Describe a situation where you had to learn a new programming language or tool for a project. How did you approach the learning process?
- What are some recent advancements in application security that you have incorporated into your work?
- How do you approach continuous learning and skill development in your career?
- Can you provide an example of how you have sought out feedback to improve your technical skills or security practices?
- In your opinion, what are the most crucial areas for ongoing education in application security?
- How have you contributed to the growth and knowledge-sharing within your previous teams or organizations?
- Describe a recent challenge you faced that required you to change your usual approach to application security. What was the outcome?
- How do you prioritize your professional development activities amidst the demands of a busy work schedule?

Seniority-specific Questions for a Application Security Engineer

Not all Application Security Engineers bring the same level of experience to the table, and your interview strategy should reflect that. A junior candidate might be eager to learn the basics, while a senior or manager-level candidate should demonstrate leadership, decision-making, and strategic thinking. Recognizing these differences ensures you’re asking the right questions to evaluate each candidate fairly. To make this easier, we’ve outlined interview question sets tailored to different levels of seniority. Use these as a guide to adapt your conversations depending on whether you’re interviewing an entry-level hire or a seasoned professional ready to lead a team.

Questions for a Junior Application Security Engineer

  • During code review you see a user controlled URL used in a server side HTTP call; how would you confirm and mitigate SSRF and what specific checks or libraries would you recommend to harden outbound requests?
  • A new feature uses JWTs in the browser; which configuration would you choose for storage, lifetime, signing and rotation, and how would you prevent common issues such as token leakage and confused deputy in OAuth and OpenID Connect flows?
  • Your pipeline runs SAST and SCA and flags a high in a transitive dependency; how would you verify exploitability, choose between upgrade patch or compensating control, and document the decision in the SBOM and ticket?

Questions for a Semi-senior Application Security Engineer

  • You are asked to threat model a payments API; how would you run a lightweight STRIDE session with the team, identify abuse cases, prioritize risks, and translate outcomes into OWASP ASVS requirements and test cases?
  • A web app must allow cross origin requests from a partner; how would you design CORS and CSP safely including preflight handling and token propagation while preventing CSRF and clickjacking?
  • Dynamic testing finds an IDOR leading to broken access control; how would you reproduce the issue, propose a defense in depth fix at controller and data layers, and add an automated check to prevent regression?

Questions for a Senior Application Security Engineer

  • You are establishing application security testing for a portfolio; how would you combine SAST DAST IAST and interactive runtime checks, set defect SLAs by severity and risk, and integrate findings into CI CD with developer self service?
  • After a supplier compromise you suspect dependency confusion in your build; how would you secure package managers and artifact repositories, enforce provenance and signature verification, and add mitigations to your pipeline?
  • Leadership asks for measurable improvement beyond “Top 10”; which ASVS control areas and NIST SSDF practices would you target first and how would you baseline and report progress over time?

Questions for a Manager Application Security Engineer

  • How would you design an AppSec program that maps to NIST SSDF across governance training secure design verification and release including ownership metrics and a risk exception process with time bound reviews?
  • Regulators request evidence of security by design and control effectiveness; how would you produce policy control matrices mapped to ASVS and NIST 800 53, sampling plans, and an audit ready roadmap?
  • How would you partner with platform and identity teams to harden authentication and authorization end to end including OAuth 2.0 and OpenID Connect patterns token lifecycles mTLS and secrets management for services?

Cost Comparison
For a Full-Time (40 hr Week) Employee

United States

Latam

Junior Hourly Wage

$30

$13.5

Semi-Senior Hourly Wage

$45

$20.25

Senior Hourly Wage

$70

$31.5

* Salaries shown are estimates. Actual savings may be even greater. Please schedule a consultation to receive detailed information tailored to your needs.

Read the Job Description for Application Security Engineer
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