Application Security Engineer

Truist•Atlanta, GA

2d•Onsite

About The Position

The position serves as an advanced technical specialist in Dynamic Application Security Testing (DAST), focusing on designing, configuring, and improving testing capabilities for complex web applications and APIs throughout the software development lifecycle. The role requires applying deep application security expertise to execute and validate assessments, resolve challenging testing conditions, and develop reusable technical solutions to enhance scan accuracy, coverage, reliability, and scalability. The individual will work independently with limited supervision and act as a technical authority for DAST standards, assessment patterns, and tooling within the Security Engineering department or job area. Truist will not sponsor an applicant for work visa status or employment authorization for this position.

Requirements

Bachelor’s degree or equivalent education, training, and work-related experience
Minimum of 5 years of experience in security engineering or related cybersecurity roles.
Advanced knowledge in cybersecurity principles, theories, and concepts.
Proven experience in software development lifecycle security practices.
Advanced knowledge of threat modeling, security testing, and penetration testing.
Experience implementing and managing complex information security technologies.

Nice To Haves

Advanced cybersecurity certification such as CISSP, CSSLP, GIAC, GWAPT, OSWE, or an equivalent application security credential.
Deep hands-on experience with enterprise DAST technologies and methodologies for complex web applications and APIs.
Advanced experience with authenticated testing, modern authentication protocols, session management, multifactor authentication, scripted login workflows, and credential handling.
Deep working knowledge of HTTP, browser behavior, web and API architectures, authentication and authorization patterns, API specifications, and common application frameworks.
Experience with security automation, APIs, scripting, data transformation, orchestration, CI/CD integrations, or workflow technologies.
Familiarity with emerging cybersecurity technologies, industry trends, and strategic risk management.

Responsibilities

Designs, configures, tests, and improves advanced DAST solutions and technical patterns for complex web applications and APIs.
Performs and validates complex authenticated assessments, including login success, session state, crawl coverage, attack surface coverage, vulnerability results and overall assessment validity.
Engineers DAST scan policies, authentication workflows, login sequences, session handling, API definitions, custom scripts, integrations, and automation for reliable and repeatable testing.
Investigates difficult and undefined assessment problems, including multifactor authentication constraints, incomplete crawling, blocked requests, dynamic application behavior, tool limitations, false positives, false negatives, and inconsistent results.
Uses browser, proxy, HTTP, API, logging, and diagnostic techniques to identify root causes and develop practical, reusable technical solutions.
Analyzes and documents DAST evidence to distinguish validated vulnerabilities, suspected false positives, coverage limitations, and inconclusive results, and supports remediation verification.
Partners with application and engineering teams to understand runtime behavior, resolve testability constraints, and establish technically appropriate DAST configurations without assuming ownership of application readiness.
Serves as a technical escalation point, reviews complex configurations and technical evidence, and shares specialized knowledge through peer reviews, troubleshooting sessions, and reusable documentation.