Application Security Analyst I — Secure SDLC & AppSec Automation

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

Benefits offered by this job

Medical and dental coverage

Life insurance

Paid holidays and vacations

401K with company match

Job summary

Transaction Network Services (TNS) is seeking a Senior Application Security Engineer to advance secure software development across the SDLC. You will partner with development, DevOps, infrastructure, and security teams to identify, assess, and remediate risks while enabling secure delivery of business applications.

You will lead SAST, SCA, ASPM, and CI/CD security initiatives, support threat modeling and secure code reviews, and drive automation and security tooling integrations across multiple

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.

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

Threat Modeling

Secure SDLC

Vulnerability Management

OWASP Top 10

Communication

Stakeholder Management

Education

Bachelor's degree in Cybersecurity, Computer Science, Information Technology, or related field

Tools

GitLab

GitHub

Azure DevOps

Job description

Transaction Network Services (TNS) is seeking a Senior Application Security Engineer to advance secure software development across the SDLC. You will partner with development, DevOps, infrastructure, and security teams to identify, assess, and remediate risks while enabling secure delivery of business applications.

You will lead SAST, SCA, ASPM, and CI/CD security initiatives, support threat modeling and secure code reviews, and drive automation and security tooling integrations across multiple