Senior Application Security Engineer – DevSecOps Lead

Madison-Davis, LLC

Dallas (TX)

On-site

USD 120,000 - 180,000

Full time

6 days ago

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Job summary

Madison-Davis, LLC is seeking a Senior Application Security Engineer to lead hands-on security initiatives across the software development lifecycle. The role blends DevSecOps engineering, security automation, vulnerability assessment, API protection, and third-party software analysis to strengthen software security controls and trust.

The engineer will partner with application development and security teams to embed security into CI/CD, perform testing, evaluate third‑party components, and

Qualifications

Hands-on application security or DevSecOps experience.
Proficient in Python for security engineering.
Experience with SAST/DAST, API security, and WAF.

Responsibilities

Embed automated application security checks into CI/CD pipelines.
Collaborate with developers on secure coding, code reviews, and threat modeling.
Perform static and dynamic application security testing.
Identify vulnerabilities and drive remediation with stakeholders.
Evaluate third-party software, source code, dependencies, and binaries.
Contribute to software trust validation and secure software approvals.
Assess API vulnerabilities and support WAF management.
Incorporate threat intelligence into software risk assessments.
Coordinate penetration testing activities and vendor engagement.

Skills

DevSecOps

Python

SAST/DAST

API security

WAF

Threat modeling

CI/CD

GitHub security tooling

Secure SDLC

Threat intelligence

Tools

GitHub Security

WAF management

CI/CD tooling

Job description

The engineer will partner with application development and security teams to embed security into CI/CD, perform testing, evaluate third‑party components, and

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