Application Security Engineer, Information Technology

ServiceLink is looking for an Application Security Engineer to help improve application and infrastructure security while partnering closely with engineering teams. This hybrid role is based in Plano, TX with an in-office requirement of at least 3 days per week. If you enjoy turning security findings into clear guidance, measurable improvements, and practical automation, this position offers a direct path to security impact across the environment.

Responsibilities

• Develop security documentation, training, and guidance for internal infrastructure and engineering teams
• Consult with internal teams to support architecture, threat modeling, and structured reviews of systems and infrastructure to identify vulnerabilities and weaknesses
• Recommend improvements and drive teams to implement security recommendations
• Perform penetration testing to examine target systems in detail for vulnerabilities and weaknesses
• Conduct vulnerability research and analysis into emerging threats, including proactive research on technologies used by the organization
• Identify and implement security technical and process improvements
• Define and own metrics to determine the effectiveness of security controls
• Apply comprehensive hardening to infrastructure platforms, deployment code, and images
• Architect, build, automate, and operate automated security controls/tools, and review capabilities to detect vulnerabilities across applications and services
• Champion a security culture using risk-based judgment to prioritize remediation work
• Other duties as assigned

Requirements

• Bachelor of Science in Computer Science, Mathematics, Engineering, or equivalent experience or education
• 5+ years of experience in a hands-on security role with demonstrated mastery across multiple classes of security defects
• Demonstrated coding skills in one or more popular languages and platforms, including C#, SQL, Python, and others
• Experience with the .NET Core framework
• Understanding of cloud computing platforms and cloud-based infrastructure design and operation
• Understanding of container technologies, security, and tooling such as Docker, Kubernetes, Helm
• Understanding of networking, routing, and web-related protocols

Preferred Qualifications

• Experience with Microsoft Azure
• Experience with container security platforms
• Continuous integration and delivery (CI/CD) tooling experience
• Current security certification (e.g., OSCP, OSEE) is a PLUS

Location and Schedule

This is a hybrid role requiring candidates to be located within reasonable commuting distance of the Plano, TX office and to work in-office on a regular basis, at least 3 days per week.

Salary: USD 90,000 - 110,000 per year.