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Ernst & Young

Global professional services: consulting, assurance, tax

Application Security & AI Engineering – Senior Manager

Security Engineering & ArchitecturePosted on Nov 10
Full-timeDallas, TX, USA$154.7k - $353.5kIn-person

About the Job

Requirements

  • At least 10 years of experience in application security, software engineering, cloud security, AI engineering, or cybersecurity.
  • Deep expertise in secure application architecture, threat modeling, vulnerability management, attack-path analysis, and Secure-by-Design principles.
  • Experience leading enterprise-scale Application Security, DevSecOps, or secure engineering transformation programs.
  • Strong understanding of cloud-native architectures, APIs, microservices, containers, and AI/GenAI technologies.
  • Current, hands-on experience building software with agentic development tools such as Cursor, Claude Code, and GitHub Copilot, including configuring and securing them for enterprise use.
  • Experience with leadership, executive communication, client-facing work, and stakeholder management.

Responsibilities

  • Define and execute Application Security and AI Security strategy, architecture standards, and transformation roadmaps.
  • Lead Secure Software Development Lifecycle (SSDLC) and DevSecOps initiatives across product and engineering organizations.
  • Govern the use of AI coding assistants and autonomous coding agents across the SSDLC by defining sandboxing, credential scoping, tool-access boundaries, and review standards for AI-authored code.
  • Move security review in-line to the point of authorship by embedding automated and AI-assisted review in the IDE and pull requests, giving developers high-confidence, fix-ready feedback as they write code.
  • Address risks from AI-generated and prompt-driven development, including code provenance, hallucinated or typosquatted dependencies, and prompt injection reaching agents with repository or pipeline access.
  • Establish and scale threat modeling programs using STRIDE, PASTA, MITRE ATT&CK, MITRE ATLAS, attack trees, and abuse cases.
  • Conduct security architecture reviews and risk assessments for applications, APIs, microservices, cloud services, and AI solutions.
  • Design and oversee SAST, DAST, Software Composition Analysis, API Security, Container Security, and Cloud Security capabilities.
  • Architect secure AI and GenAI solutions, including LLM applications, copilots, Retrieval-Augmented Generation platforms, and agentic AI systems.
  • Develop controls for AI agents, autonomous workflows, model access, prompt security, data protection, guardrails, and responsible AI governance.
  • Partner with engineering, product, cloud, data, and cyber teams to embed security throughout the development lifecycle.
  • Mentor application security architects, AI engineers, DevSecOps professionals, and security consultants.

Desired Qualifications

  • Experience with STRIDE, PASTA, MITRE ATT&CK, MITRE ATLAS, threat-modeling-as-code, and automated threat modeling integrated into the delivery pipeline.
  • Experience with Semgrep, CodeQL, Snyk, reachability-based software composition analysis, Burp Suite, and the OWASP Top 10 for web, API, and LLM applications.
  • Experience with Azure, AWS, Google Cloud, Kubernetes, Terraform, GitHub Actions, GitLab CI, and Azure DevOps, including policy-as-code enforcement using OPA or Kyverno.
  • Experience with Azure AI Foundry, OpenAI, Anthropic, Vertex AI, Amazon Bedrock, LangGraph, OpenAI Agents SDK, Claude Agent SDK, and the Model Context Protocol.
  • Experience with Cursor, Claude Code, GitHub Copilot, and OpenAI Codex, including agent rules and context files, Model Context Protocol tooling, agent sandboxing, and in-line security review workflows.
  • Experience with AI threat modeling, red teaming, prompt-injection testing, RAG security, agent security, model risk, guardrails, and responsible AI governance.
  • CISSP, CSSLP, CCSP, CISM, GWAPT, CKS, or relevant Microsoft, AWS, Google Cloud, AI Security, or Responsible AI certifications.
  • Hands-on experience with agentic development tools, particularly Cursor and Claude Code, and experience leading enterprise Secure AI SDLC, AI Red Teaming, and AI Governance programs.

About the Company

Ernst & Young

Global professional services: consulting, assurance, tax

EY (Ernst & Young) provides professional services at a global scale, offering consulting, assurance, tax, and transaction advisory services. It serves clients across industries such as technology, media, real estate, hospitality, and construction. Instead of selling a single product, EY works with clients through tailored engagements where cross-disciplinary teams analyze challenges, design strategies, perform audits, help with tax planning, and assist with mergers or divestitures. What sets EY apart is its worldwide reach and integrated service model, industry-specific expertise, and focus on responsible business practices like sustainability, cybersecurity, and workforce flexibility. EY’s goal is to help organizations improve performance, manage risk, and achieve sustainable growth while building a better working world.

Company size
5,001-10,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Boston, MA
Founded
1991

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