Application Security Engineer I - Secure SDLC

Transaction Network Services; Elm (PA); On-site; USD 75,000 - 83,000; Full time

Job summary

Transaction Network Services is seeking an Application Security Engineer to strengthen its secure software development program across the SDLC. You will lead security assessments, integrate SAST/SCA/ASPM, and coordinate with DevOps and engineering teams to remediate vulnerabilities and enable secure delivery of business applications.

The role requires 5+ years in AppSec or secure development, hands-on experience with GitLab, GitHub, and Azure DevOps, and knowledge of OWASP Top 10 and threat

Qualifications

• Bachelor's degree in Cybersecurity, Computer Science, Information Technology, or related field.
• 5+ years of Application Security or Secure Development experience.
• Experience with SAST, SCA, DAST, ASPM, container security, and CI/CD security controls.
• Hands-on experience with GitLab, GitHub, Azure DevOps, or similar development platforms.

Responsibilities

• Lead application security assessments and vulnerability management activities.
• Implement and manage SAST, SCA, container, and CI/CD security controls.
• Drive ASPM platform adoption and security tool integrations.
• Partner with development teams to remediate security findings and improve secure coding practices.
• Develop and maintain AppSec automation, workflows, and operational runbooks.
• Support threat modeling, architecture reviews, and secure design consultations.
• Prioritize and manage remediation efforts for critical and high-risk vulnerabilities.
• Provide application security guidance across multiple business units and technology teams.

Skills

Strong communication

Education

Bachelor's degree in Cybersecurity, CS, IT, or related field

Tools

GitLab

GitHub

Azure DevOps

Job description

Transaction Network Services is seeking an Application Security Engineer to strengthen its secure software development program across the SDLC. You will lead security assessments, integrate SAST/SCA/ASPM, and coordinate with DevOps and engineering teams to remediate vulnerabilities and enable secure delivery of business applications.

The role requires 5+ years in AppSec or secure development, hands-on experience with GitLab, GitHub, and Azure DevOps, and knowledge of OWASP Top 10 and threat