Twilio - Staff Engineer, AI Security
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Requirements
• Twilio values diverse experiences from all kinds of industries, and we encourage everyone who meets the required qualifications to apply. If your career is just starting or hasn't followed a traditional path, don't let that stop you from considering Twilio. We are always looking for people who will bring something new to the table! • 8+ years of experience in security engineering with at least 3 years focused on AI or machine learning security operations (MLSecOps). • Expertise in orchestrating multi-agent systems with AWS Strands, LangGraph, and CrewAI, specializing in runtime isolation, PII redaction, and defending against indirect prompt injection in agentic environments. • Hands-on experience with AI-specific frameworks (e.g., MITRE ATLAS, MAESTRO, OWASP Top 10 for LLMs/Agents/MCP) to threat model and defend against a wide spectrum of risks, including direct/indirect prompt injection, training data poisoning, tool poisoning, and data exfiltration within agentic workflows. • Proficiency in securing end-to-end AI pipelines, from data ingestion and training to model deployment and monitoring. • Strong communication skills to translate complex AI risks into actionable business logic for stakeholders. • Desired: • Hands-on experience in modern application security tooling including SAST and SCA and DAST with experience adapting these tools to catch AI specific vulnerabilities like indirect prompt injection. • Expertise in identity standards including OAuth 2.1 and PKCE. • Experience with AI Red Teaming and conducting adversarial simulations against Large Language Models (LLMs) and agentic systems. • Proficiency in at least one general programming language (Python, Go, etc) with experience in container security and workload isolation. • Proven ability to operate with autonomy and drive high impact outcomes in ambiguous environments by identifying and executing on critical projects without predefined roadmaps or direct supervision. • Location • This role will be remote based in Ireland • Travel • We prioritize connection and opportunities to build relationships with our customers and each other. For this role, you may be required to travel occasionally to participate in project or team in-person meetings.
Responsibilities
• Serve as the primary subject matter expert for all AI and machine learning security initiatives across security and R&D. • Design and manage AI gateways to provide a centralized control plane for authentication and authorization and rate limiting across all model and tool interactions. • Build and maintain an autonomous security agentic framework that utilizes multi agent orchestration for end to end investigation and alert triage and remediation. • Develop agentic identity models using OAuth 2.1 to propagate identity across trust boundaries and prevent the confused deputy problem. • Help govern the AI augmented software development lifecycle by integrating real time security gates into the developer environment and CI/CD pipeline. • Manage Agentic Security Solutions that secure AI lifecycle and manage AI workloads at runtime. • Author company wide AI security standards and implement these security checks across Twilio’s stack • Implement human in the loop checkpoints and transactional safety protocols for high impact or destructive agentic actions. • Partner with engineering leadership to set the long term roadmap for identity centric security and automated posture management. • Act as a knowledge multiplier by mentoring security engineers and developing secure by default paved road templates for R&D teams
Benefits
• Working at Twilio offers many benefits, including competitive pay, generous time off, ample parental and wellness leave, healthcare, a retirement savings program, and much more. Offerings vary by location. • Twilio thinks big. Do you? • We like to solve problems, take initiative, pitch in when needed, and are always up for trying new things. That's why we seek out colleagues who embody our values — something we call Twilio Magic. Additionally, we empower employees to build positive change in their communities by supporting their volunteering and donation efforts. • So, if you're ready to unleash your full potential, do your best work, and be the best version of yourself, apply now! If this role isn't what you're looking for, please consider other open positions.
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