AI Security Researcher

Job Description

Job Description

About Harmonic Security

Harmonic Security lets teams adopt AI tools safely by protecting sensitive data in real time with minimal effort. It gives enterprises full control and stops leaks so that their teams can innovate confidently.

We are led by cybersecurity experts and backed by top investors including N47, Ten Eleven Ventures, and In-Q-Tel.

As organizations accelerate their adoption of generative and agentic AI, the security landscape is shifting faster than ever before. Harmonic is building the research, insights, and technology foundations that help enterprises understand and mitigate AI risk—creating an opportunity for this role to shape the emerging field of AI security from the ground up.

About the Team

Harmonic’s Security & TechOps team owns the systems, tooling, and research that keep Harmonic secure, trusted, and moving fast. We work across the entire lifecycle of how the company operates-from how we build software, to how we detect threats, to how we prove our security posture to customers, to how employees use the technology that powers their work.

We focus on enabling speed without sacrificing safety. That means creating secure-by-default engineering practices, building automation and detections that reduce manual work, researching emerging AI security risks, running assurance programmes like SOC 2 and ISO 27001, and shaping the internal platforms that help teams work efficiently and securely.

We’re a hands-on, engineering-first group. We avoid box-ticking and heavy processes in favour of practical solutions, strong automation, and constant improvement. We collaborate closely across functions, operate with high ownership, and support each other through rapid growth. Our shared goal is to build the trust, systems, and capabilities that let Harmonic innovate confidently and at scale.

About the Role

Harmonic’s Security team is breaking new ground in understanding the security risks that come with Generative and Agentic AI.

Our mission is to equip security leaders and practitioners with clear, actionable insights on securing AI systems. This work should shape how the industry thinks about AI security, and our findings make their way onto the stages of the world’s top security and AI conferences.

As we embark on this mission, we’re looking for a founding AI Security Researcher to build and lead Harmonic’s AI Security Research program from the ground up. You’ll define our research agenda, uncover real-world security risks in AI tools and platforms, and help shape how enterprises can adopt AI safely.

This role blends hands-on technical research with public thought leadership - from identifying vulnerabilities in emerging AI systems to creating guides, publishing insights, and representing Harmonic at major industry events. You’ll also play a key role in informing our product strategy, ensuring Harmonic stays ahead of evolving AI security threats and opportunities.

What You’ll Do

• Lead AI Security Research : Design and drive a greenfield research program focused on securing the use of AI systems and tools.
• Thought Leadership : Develop practitioner guides and actionable content on securing AI technologies (e.g., “How to secure ChatGPT Enterprise”).
• Public Engagement : Represent Harmonic at industry conferences (e.g., RSA, BlackHat, DEFCON) through talks, panels, and research presentations.
• Threat Intelligence : Research emerging AI threats and threat actors, assessing their impact on our customers and the broader ecosystem.
• Internal SME : Partner with Product Security to identify and mitigate AI-related risks across Harmonic’s products and infrastructure.

What Success Looks Like (6–12 months)

Requirements

What You Bring

You Might Be a Fit If You…

Benefits

Why Join Us

This isn’t just a job; it’s an opportunity to be part of a team that is redefining cybersecurity. We believe today’s talent is tomorrow’s success, and we’re committed to creating an environment where you can do the best work of your life.

Company Values