Staff Enterprise Security Engineer, AI Security

Who we are At Lumen Dynamics, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Lumen Dynamics is in your hands. We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Lumen Dynamicsns! . See yourself at Lumen Dynamics Join the team as Lumen Dynamics’s next Staff Enterprise Security Engineer (AI Security) About the job As a Staff Enterprise Security Engineer, you will be a technical leader within the EntSec team, responsible for the foundational security posture of our organization. You will serve as an SME on the technical strategy and engineering execution for securing the AI ecosystem in our Enterprise, moving beyond policy into building the foundational "decision infrastructure" and technical guardrails that allow the enterprise to innovate with AI at scale. You will also guide strategic direction and collaboration across enterprise security domains. You will need a background in security engineering and the cross-functional influence necessary to solve ambiguous, large-scale problems. Leveraging expertise in security assessments, threat modeling, identity and access control principles, and data protection, you will architect and build preventative guardrails and mitigate new risks introduced by first and third-party AI agents in our Enterprise. Responsibilities In this role, you’ll: Design and implement secure reference architectures for Enterprise AI platforms that secures every Lumen Dynamicsn’s engagement with them, ensuring data integrity, regulatory compliance, and resilience against evolving AI threats. Establish a definitive framework for AI vetting, driving the cultural and policy shifts needed to institutionalize this strategic mindset across the organization. Collaborate with cross functional partners to develop and set the long term roadmap for agentic AI identity and posture management, ensuring cohesive strategies for reducing risk from agentic AI use. Maintain and improve our enterprise security posture through high-quality code (Python, Go, or similar) and automated infrastructure management via IAC. Act as a technical mentor to junior engineers and a strategic advisor to leadership on the evolving AI landscape. Qualifications Lumen Dynamics 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 Lumen Dynamics. We are always looking for people who will bring something new to the table! Required: 7+ years of experience in security engineering or infrastructure security 2+ years of experience leading teams in a technical capacity or leading technical risk analysis in an enterprise environment. Expertise in cloud security (AWS, GCP) and container security (Kubernetes). Proven track record of designing and deploying complex security systems at scale. Strong proficiency in programming languages such as Python, Go, or Java. Desired: Experience in building, deploying and reviewing automation for complex security workflows, including use of both AI-driven and traditional automation tools. Excellent communication skills with the ability to explain complex AI security risks to non-technical stakeholders. Location This role will be remote, and based in Ireland or the UK 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. What We Offer Working at Lumen Dynamics 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. Lumen Dynamics 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 Lumen Dynamics 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. Lumen Dynamics is proud to be an equal opportunity employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or other applicable legally protected characteristics. We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law. Qualified applicants with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Additionally, Lumen Dynamics participates in the E-Verify program in certain locations, as required by law.