Application Security Engineer I — SDLC & Automation

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

Benefits offered by this job

Medical coverage

401K with company match

Job summary

Transaction Network Services (TNS) seeks a Senior Application Security Engineer to advance our secure SDLC. You will collaborate with development, DevOps, infrastructure, and security teams to identify, assess, and remediate application security risks while enabling secure delivery of business applications.

You will lead SAST, SCA, ASPM, container security, CI/CD security, and security automation, supporting security assessments, threat modeling, secure code reviews, and tooling integrations

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.
• Knowledge of OWASP Top 10, threat modeling, secure SDLC, and vulnerability management.
• Strong communication and stakeholder management skills.
• Relevant certifications such as CISSP, CSSLP, GSEC, GWAPT, or GIAC certifications preferred.

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

SAST

SCA

DAST

ASPM

CI/CD security

container security

security automation

GitLab

GitHub

Azure DevOps

OWASP Top 10

threat modeling

secure SDLC

vulnerability management

communication

stakeholder management

CISSP

CSSLP

GSEC

GWAPT

GIAC

Education

Bachelor's degree in Cybersecurity, Computer Science, IT

Tools

GitLab

GitHub

Azure DevOps

Job description

Transaction Network Services (TNS) seeks a Senior Application Security Engineer to advance our secure SDLC. You will collaborate with development, DevOps, infrastructure, and security teams to identify, assess, and remediate application security risks while enabling secure delivery of business applications.

You will lead SAST, SCA, ASPM, container security, CI/CD security, and security automation, supporting security assessments, threat modeling, secure code reviews, and tooling integrations