Principal Software Engineer, Infrastructure Security

About This Opportunity

We are representing a confidential AI research organization in a search for a Principal Software Engineer to join their Infrastructure Security team. This is a rare opportunity to architect and build security systems that protect some of the world's most advanced computing environments—GPU supercomputing clusters, multi-cloud infrastructure, datacenters, and the critical services that power frontier AI models.

In this role, you will own the technical direction and execution of foundational security services including authentication systems, egress/ingress proxies, access brokers, and key management platforms. These systems form the security backbone of production environments operating at planetary scale, and must remain robust under intense demand and adversarial pressure.

Responsibilities

• Own architecture and roadmap for core security services (authentication/authorization, policy enforcement, secure proxies, key management) from design through long-term operation
• Design and implement planet-scale security systems that provide strong guarantees across hardware, operating systems, Kubernetes, networks, and CI/CD pipelines
• Lead cross-functional launches with infrastructure and research engineering teams, shaping interfaces, migration plans, and safe rollout strategies across large fleets
• Build and evolve security primitives (identity, attestation, authorization, encryption key lifecycle, access mediation) that become platform building blocks
• Leverage frontier AI models and agents to develop automation and detection tooling for identifying and mitigating risks in large-scale cloud and on-premises environments
• Lead design reviews and threat models for major initiatives, driving closure on systemic security issues
• Mentor engineers across teams, raising standards for engineering quality, operational readiness, and secure-by-default practices

What We're Looking For

• Strong software engineering skills with proven track record of shipping and operating reliable distributed systems in production
• Experience building or operating critical security infrastructure at scale (auth services, service-to-service proxies, certificate or key-management systems)
• Deep understanding of security principles, best practices, and common vulnerabilities
• Demonstrated ability to lead cross-team technical initiatives: setting direction, aligning stakeholders, driving execution, and delivering measurable outcomes
• Expertise in using frontier AI models and agents to solve security challenges
• Expertise securing large-scale cloud platforms (Azure, AWS, GCP), including multi-cloud networks and cloud-agnostic system design
• Proactive mindset with ability to identify and address security gaps through automation and tooling
• Strong analytical and problem-solving skills with critical thinking and objective risk assessment capabilities
• Excellent communication skills for conveying complex security concepts to executive, technical, and non-technical stakeholders

How We Work with You

Candidates apply directly through Get A Job.ai. Our recruiting team will conduct an initial screening to understand your background and goals. Qualified candidates are then presented to our client for consideration. Please do not attempt to contact the client directly—all communication flows through our talent team to ensure a smooth, professional process.

Pay

Compensation details will be discussed with qualified candidates during the screening process.

Equal Employment Opportunity: Get A Job.ai is committed to inclusive hiring practices. We welcome candidates from all backgrounds and work with clients who share our commitment to building diverse teams.