WHY WORK AT HIGGSFIELD AI? Higgsfield AI is the fastest-scaling generative AI company in history, hitting $500M in annual revenue run rate, 25M+ users worldwide, 6M+ generations per day, and powering 390 of Fortune 500 brands. We're building at the absolute frontier of AI-powered video creation and next-generation creative tools. Joining Higgsfield means becoming part of a high-impact team shaping the future of AI-native experiences, at a company that isn't just moving fast, but rewriting what fast looks like.   Role Overview We're looking for a hands-on Infrastructure Security Engineer to own security across our cloud and ML infrastructure — the platform that trains our models and serves millions of generations a day. The work spans tenant isolation for user-deployed apps, GPU cluster security, and model protection from training pipeline to serving. You'll sit between Security, DevOps, and ML Engineering. You'll own both immediate implementation work and long-term operational responsibility: cloud and ML infrastructure security, vulnerability management, monitoring, and access governance.   KEY RESPONSIBILITIES We are looking for someone with experience in scaling high-growth startups who can make an immediate impact in the following areas: Cloud & Network Security * Evaluate, implement, and maintain cloud security tooling. * Own infrastructure and container vulnerability management across our cloud environments, and drive remediation. * Design and implement network segmentation to tighten internal security boundaries. * Build centralized security monitoring across cloud infrastructure. Corporate Access Control * Own access governance and credential management across cloud and internal tooling. * Partner with Engineering, DevOps, and IT to raise identity and access management standards. Technical Leadership: * Set the technical direction for infrastructure security and lead cross-functional projects turning the standards you set into tooling and guardrails engineers actually ship with. Requirements: Few people will match all of these. If you're strong on some and eager to learn the rest, apply anyway. * 7+ years in infrastructure security or security engineering, including time at a high- growth startup. * Deep hands-on experience securing a major cloud provider and a container orchestrator, managed with infrastructure-as-code (AWS, Kubernetes, Terraform). * Experience securing ML workloads — training or inference infrastructure, GPU clusters, or model-serving platforms. * Solid networking, operating systems, and cryptography fundamentals. * Strong grasp of container and infrastructure security practices and vulnerability management. * Comfortable working cross-functionally with DevOps, Engineering, and ML teams; able to independently find and close security gaps. * High agency. Nice to have * Experience with sandboxing, container isolation, or secure execution environments for untrusted code. * Experience with CSPM rollouts. * Incident response and security monitoring experience. * Familiarity with SOC 2 or similar frameworks. WHAT WE OFFER: * Competitive base salary in USD * Equity: participation in the company’s stock option program, giving you the opportunity to share in the company’s long-term growth. * On-site role in our Almaty office (we will relocate you from anywhere).