Application Security & Vulnerability Lead

Rezdy; United States; Hybrid; USD 110,000 - 160,000; Full time

Job summary

Rezdy is seeking an AppSec Security Specialist to support our growing security function, with a primary focus on application security, vulnerability management, and secure development practices across Checkfront, Rezdy, Regiondo, and related platforms. This hybrid security role combines hands-on application security work with security operations support.

You will help identify and remediate risks across our web applications, APIs, cloud environments, and development workflows, while also

Qualifications

• 4+ years experience in application security, security operations, IT security, vulnerability management, or related field.
• Experience with web app security testing, vulnerability scanning, remediation tracking, or secure software development practices.
• Familiarity with CrowdStrike, KnowBe4, vulnerability scanners, ticketing systems, web app scanning tools, and GRC platforms is a plus.
• Ability to investigate security alerts, document findings, and elevate issues appropriately.
• Ability to work with engineering and IT teams to validate findings, track remediation, and reduce risk.

Responsibilities

• Support application security across Checkfront, Rezdy, Regiondo, and related platforms.
• Perform web application security scans and help validate, prioritize, and track findings through remediation.
• Support vulnerability management processes, including scanning, prioritization, reporting, and remediation tracking.
• Use and support application security tools such as SAST, DAST, SCA, and manage security findings.
• Coordinate with penetration testing vendors, including scoping, scheduling, evidence collection, findings review, and remediation follow‑up.
• Work with engineering/dev teams to validate security findings, reduce risk, and improve secure development practices.
• Help identify and reduce risk across web applications, APIs, cloud services, and third‑party components.
• Support secure software development practices, including clear guidance on remediation, secure coding, and risk reduction.

Skills

Written communication

Verbal communication

Ownership mindset

Curiosity

Attention to detail

Tools

CrowdStrike

KnowBe4

EDR

SIEM

SOAR

Vulnerability management tools

Web application scanning tools

Job description

Rezdy is seeking an AppSec Security Specialist to support our growing security function, with a primary focus on application security, vulnerability management, and secure development practices across Checkfront, Rezdy, Regiondo, and related platforms. This hybrid security role combines hands-on application security work with security operations support.

You will help identify and remediate risks across our web applications, APIs, cloud environments, and development workflows, while also