Senior Security Engineer - Penetration Tester

Truist Bank•Atlanta, GA

1d•Onsite

About The Position

This is not a role for someone looking to sit on the sidelines. We're looking for builders, problem-solvers, and security professionals who thrive in a fast-paced environment where priorities shift, new challenges emerge daily, and your skills directly influence the security posture of a major enterprise. If you enjoy finding vulnerabilities before adversaries do, proposing better ways to test, helping shape new security capabilities, and working alongside a high-performing team that continuously raises the bar, we want to hear from you. Our team tests a wide variety of technologies including AI, Mainframe, Active Directory, APIs, Web Applications, Infrastructure, Mobile, IoT, Cloud Platforms, Thick Client Applications, Physical Security, and others. We are specifically seeking candidates with experience in AI security testing and/or Mainframe security testing. Expertise in additional testing disciplines is highly valued but not required. This team operates like a championship organization. The work is meaningful, visible, and impactful. You'll have the opportunity to influence testing methodologies, shape emerging security capabilities, and help protect critical business operations. The pace is demanding, the expectations are high, and the opportunity for growth is significant. For this opportunity, Truist will not sponsor an applicant for work visa status or employment authorization, nor will we offer any immigration-related support for this position (including, but not limited to H-1B, F-1 OPT, F-1 STEM OPT, F-1 CPT, J-1, TN-1 or TN-2, E-3, O-1, or future sponsorship for U.S. lawful permanent residence status.)

Requirements

Bachelor’s degree or equivalent education, training, and work-related experience.
Minimum of 7 years of experience in security engineering or related cybersecurity roles.
Deep specialized knowledge in cybersecurity principles, theories, and concepts.
Proven experience in software development lifecycle security practices.
Deep knowledge of threat modeling, security testing, and penetration testing.
Experience implementing and managing complex information security technologies.

Nice To Haves

5+ years of penetration testing, red teaming, offensive security, vulnerability research, or related cybersecurity experience.
Strong technical writing and communication skills.
Ability to clearly articulate technical risks to both technical and non-technical audiences.
Ability to independently manage multiple engagements in a dynamic environment.
Experience defending technical findings and participating in challenging stakeholder discussions.
Strong analytical and problem-solving skills.
Ability to adapt quickly to changing priorities, technologies, and business needs.
Experience with AI Security Testing and/or Mainframe Security Testing.
Experience performing assessments in one or more of the following are: Experience conducting penetration testing, red team, and security assessments across a variety of environments and technologies, including Active Directory, APIs, web applications, infrastructure, cloud platforms, mobile applications, thick/client-server applications, IoT devices, wireless networks, network security, social engineering, and physical security controls.
Banking, financial services, or highly regulated industry experience.
Experience supporting red team, purple team, or adversary emulation activities.
Experience with scripting, automation, and offensive security tool development.

Responsibilities

Conduct penetration tests against enterprise applications, infrastructure, cloud platforms, AI systems, APIs, mobile applications, Active Directory environments, and other technology assets.
Simulate real-world attack techniques to identify vulnerabilities, attack paths, misconfigurations, and security weaknesses.
Perform validation and retesting activities to verify remediation efforts and confirm risk reduction.
Document technical findings with clear reproduction steps, supporting evidence, business impact, and remediation recommendations.
Maintain testing artifacts and evidence to support regulatory, audit, and compliance requirements.
Defend findings during discussions with application teams, technology leaders, and other stakeholders.
Participate in escalation calls involving disputed findings, risk discussions, and remediation planning.
Exercise sound judgment when assessing vulnerability severity and exploitability.
Collaborate with internal and external testing teams to improve testing coverage and effectiveness.
Stay current with emerging attack techniques, technologies, and industry trends.
Contribute to AI security testing initiatives and emerging offensive security capabilities.
Support AI model evaluation, testing, training, and security validation efforts.
Provide feedback that improves testing methodologies, automation, tooling, and operational processes.
Identify opportunities to increase testing efficiency, effectiveness, and scalability.
Perform peer reviews of penetration testing reports and deliverables.
Provide technical guidance and mentorship to junior security professionals.
Collaborate effectively across security, engineering, development, infrastructure teams, app teams, and various levels of management.
Assist with standards, procedures, playbooks, and testing documentation.
Support special projects and security initiatives aligned to individual expertise.