Senior Offensive Web App Security & Fraud Specialist

Vanguard; Malvern (Chester County); Hybrid; USD 120,000 - 180,000; Full time

Job summary

Vanguard in Malvern, PA, is seeking an experienced security tester to design and execute adversarial scenarios that stress-test fraud detection and response, and to partner with defense teams to validate controls.

You will conduct penetration testing, vulnerability assessments, and threat modeling, produce written threat assessments, and mentor junior engineers while collaborating with IT and business units on enterprise security initiatives.

Qualifications

• OSCP, OSWA, OSWE, CWES, GWAPT or PWPP or equivalent certification required
• CISSP preferred
• Minimum five years related work experience, with three years in threat analysis
• Undergraduate degree or the equivalent combination of training and experience

Responsibilities

• Design and execute realistic scenarios that stress-test cyber fraud detection and response, and partner with defensive teams in exercises to validate that our controls fire when they should.
• Assesses the risk and business impact of identified findings, applying defensible severity ratings based on likelihood, exploitability, and exposure.
• Mentors junior team members to improve their technical acumen.
• Applies emerging adversarial tradecraft against client facing web application infrastructure through rigorous control validation to improve reactive and proactive threat driven operations.
• Conducts penetration testing, vulnerability assessments and threat modeling; evaluates risks and makes recommendations.
• Provides written assessments focused on threats, vulnerabilities, and technologies relevant to Vanguard Infrastructure.
• Leads with IT and business teams to ensure prompt and effective distribution of findings so incidents are effectively addressed.
• Participates in special projects and performs other duties as assigned.

Skills

Threat analysis

Penetration testing

Mentoring

Web app security

Education

Undergraduate degree or equivalent experience

OSCP/related certification

CISSP preferred

Job description

Vanguard in Malvern, PA, is seeking an experienced security tester to design and execute adversarial scenarios that stress-test fraud detection and response, and to partner with defense teams to validate controls.

You will conduct penetration testing, vulnerability assessments, and threat modeling, produce written threat assessments, and mentor junior engineers while collaborating with IT and business units on enterprise security initiatives.