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Equinix is the world’s digital infrastructure company®, shortening the path to connectivity to enable the innovations that enrich our work, life and planet.
A place where tech thinkers and future builders turn bold ideas into breakthrough experiences, we welcome your unique perspective.
Help us challenge assumptions, uncover bias, and remove barriers—because progress starts with fresh ideas. You’ll find belonging, purpose, and a team that welcomes you—because when you feel valued, you’re empowered to do your best work.
Job Summary
The Application Security Engineer will be responsible for strengthening and continuously improving the security posture of the organization’s applications. This role involves integrating security into the software development lifecycle (SDLC), embedding and automating application security testing within CI/CD pipelines, and driving timely remediation of identified vulnerabilities.
The engineer will work closely with application teams to perform security design reviews, triage and assess vulnerabilities, and guide teams on effective remediation, security best practices, secure coding and threat modeling.
Success for this role requires that you are
Familiar with application security concepts, standards and trends (OWASP Top 10, OWASP ASVS, secure SDLC)
Able to interpret and apply security principles and standards to application designs, architectures, configurations and policies
Able to automate security controls using pipeline-as-code and infrastructure-as-code
Driven to learn new things; excited about challenges and finding solutions
A strong builder mentality with a drive to “see things through”
Able to communicate technical concepts, risk and remediation guidance clearly and concisely to developers, peers and management
Able to demonstrate good judgment in prioritizing vulnerabilities based on their impact to the confidentiality, integrity and availability of information
Responsibilities
Integrate, operate and continuously improve application security testing tools (SAST, SCA, Secret Scanning and DAST) within the SDLC
Implement shift-left security practices to ensure vulnerabilities are detected and remediated early in the SDLC
Conduct threat modeling, secure design reviews and architecture reviews with application teams to identify and mitigate risks early
Triage, validate and prioritize findings from SAST, SCA, Secret Scanning and DAST; tune rules, policies and quality gates to reduce false positives
Partner with application teams to remediate identified vulnerabilities by providing clear, actionable guidance and tracking findings through to closure
Recommend and promote security best practices and secure coding standards, and educate developers on common vulnerability classes
Build and maintain automation and scripts (e.g., Python, Terraform) to onboard applications to security tooling, enforce policy as code, and report on application security metrics
Track and report on application security posture (e.g., vulnerability trends, remediation timelines, tool coverage) to stakeholders and management
Model the Equinix culture and values
Knowledge / Skills / Abilities
Hands-on experience with SAST, SCA, Secret Scanning and DAST tooling, including interpreting results and guiding remediation
Hands-on experience with CI/CD tools such as GitHub Actions, including integrating security scans and quality gates into pipelines
Strong understanding of the OWASP Top 10, OWASP API Security Top 10, OWASP ASVS and related standards (NIST, CIS Benchmarks) and the ability to recommend solutions aligned with them
Hands-on experience performing threat modeling (e.g., STRIDE, data flow diagrams) and secure design reviews
Understanding of AI and LLM security risks and mitigations (e.g., OWASP Top 10 for LLM Applications, prompt injection, data leakage, model and AI supply chain risks) and how to secure AI-enabled applications
Working knowledge of common vulnerability classes (e.g., injection, XSS, SSRF,…