Senior AI Security Engineer

Job description

About Some people accept the internet as it is. We see what it could be. At , we don’t wait for change. We make it happen. You won’t find layers of red tape or play-it-safe thinking here. You’ll find people who move quickly, take ownership, and push ideas all the way to the edge. Literally. You’ll build things that solve actual problems, not add to them. We’re not perfect, and we don’t pretend to be. But we’re always improving. We’re looking for people who want to do the same, who take pride in their work, and aren’t afraid to challenge what’s possible. Because everyone deserves a better internet. And we’re here to help it hop faster. Senior AI Security Engineer AI agents are changing how software gets built, deployed, and operated. They also introduce an entirely new attack surface: prompt injection, secret exfiltration, escalation paths, and insider threat amplification. Most organizations are adopting agents faster than they’re securing them. We’re building the products that fix that. is building a new product line focused on AI security: giving customers the infrastructure to route, observe, and control AI traffic at the edge, and the security layer to protect against the threats that come with agent adoption. Detection, prevention, access enforcement, and visibility into what AI systems are actually doing. This role sits at the center of that effort. You'll join the AI team as one of its first members, helping define the security models, controls, and products that help customers safely adopt AI at scale. You'll do it as part of an AI-native team, building, testing, and shipping through AI agents every day rather than writing code by hand. The challenges are real, the playbook is still being written, and many of the best practices haven't been established yet. You'll help define them. What will you do? Help design the security architecture behind 's AI security products: the threat models, detection systems, access controls, and enforcement policies that protect customers from AI-era attacks Build core security capabilities, including prompt injection detection, secret protection, agent auditing, and access enforcement Work with Product and AI leadership to identify the threats that matter most and decide what to build next Build security products on 's global edge network, bringing AI security to a globally distributed platform operating at massive scale Help secure 's internal AI platform and apply those learnings to customer-facing products What will you bring? You’ll bring deep engineering experience, an AI-native way of working, and a hands-on understanding of where agents break, meaning: 7+ years building and architecting complex production systems Background in application security, infrastructure security, or both AI-native workflow, meaning you build alongside AI agents every day and know how to turn their output into production-ready systems Senior-level software architecture skills, including thinking in trust boundaries, failure modes, and system-level risk, not just features Experience with the failure modes and guardrails of agent-driven development and how to mitigate them What will make us extra happy? Deep understanding of how agents change the attack surface: prompt injection, secret exfiltration, escalation paths, insider threat amplification Experience building security products such as WAFs, API gateways, or threat detection systems Experience using AI and agents to build or improve production security tooling Familiarity with edge computing, CDN infrastructure, or large-scale distributed systems Where should you be located? Europe, ideally within CET ±3 hours so collaboration with the team feels natural rather than scheduled. What's in it for you? Life at comes with benefits that make work (and life) better. 100% flexible hours - Your work, your rhythm. Whether you thrive at 3 am or on a beach at noon, we've got you. Remote-first by design - No offices, no commute, just the freedom to work anywhere. Miss the office? We’ll give you a 3-night voucher for visiting our headquarters . Medical, dental, and vision insurance - Coverage worldwide. Paid time off - Love the slopes or the sea? Enjoy them with 25 vacation days, plus an extra loyalty day each year, capped at 5 years (30 days total), on top of your local public holidays. Meeting-free Thursdays - We keep Thursdays meeting free internally so you can focus on deep work without interruptions. Home office budget - We believe everyone is more efficient working in a comfortable office, and we're happy to help you set it up with an annual budget of €500. Paid sick leave - Feeling ill? Take time off to fully recover without having to worry about your finances. Parental leave - Paid 16 weeks for birthing parents, 8 weeks for non-birthing parents. If your country gives more, that’s your baseline. If it gives less, we top it up. Take your leave all at once or split it across the first year for maximum flexibility. After paid leave, your local statutory rules apply. Annual fluffle building - We're remote, but not distant! Once a year, we meet in a sunny location where virtual high-fives turn into real ones. Employee Stock Option Plan (ESOP) - Everyone at gets a piece of the pie, starting with 0.01% equity. Mental health support - Feeling down? We've got your back. provides mental health resources and help via . Wellness budget - An annual well-being budget of €480 is here to help you stay fresh and focused. Educational budget - €500 yearly for books, seminars, or online courses to keep your learning on track, work-related or not. Music on us: Work is better with music. Enjoy a yearly Apple, Spotify, or YouTube Premium subscription on us.