AppSec Engineer I: Secure SDLC, CI/CD & Threat Modeling

Transaction Network Services; Michigan; On-site; USD 75,000 - 83,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

Life insurance

Paid holidays and vacations

401K with company match

Job summary

Transaction Network Services is seeking an Application Security Engineer to advance our secure software development program by integrating security across the SDLC. This role partners with application development, DevOps and security teams to identify, assess and remediate risks while enabling secure delivery of business applications.

You will lead app security initiatives including SAST, SCA, ASPM, CI/CD security, container scanning and vulnerability management, and support threat modeling,

Qualifications

• Bachelor's degree in Cybersecurity, CS, IT or related field.
• 5+ years in Application Security or Secure Development.
• Experience with SAST, SCA, DAST, ASPM, container security, and CI/CD controls.
• Hands-on with GitLab, GitHub, Azure DevOps.
• Knowledge of OWASP Top 10, threat modeling, secure SDLC, vulnerability management.
• Strong communication and stakeholder management.

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

Application security experience

Threat modeling

Secure SDLC practices

Stakeholder communication

Education

Bachelor's degree in Cybersecurity, CS, IT

Tools

GitLab

GitHub

Azure DevOps

SAST tooling

SCA tooling

DAST tooling

Job description

Transaction Network Services is seeking an Application Security Engineer to advance our secure software development program by integrating security across the SDLC. This role partners with application development, DevOps and security teams to identify, assess and remediate risks while enabling secure delivery of business applications.

You will lead app security initiatives including SAST, SCA, ASPM, CI/CD security, container scanning and vulnerability management, and support threat modeling,