Sr. Infrastructure Security Engineer

Core team
$250K - $350K/yr compensation

Required Skills

Security Governance
Zero Trust
Detection as Code (DaC)
IAM Engineering
AI-Enabled Defense
About micro1
micro1 connects domain experts to the development of frontier AI models. Real-world expertise is turned into training data, evaluations, and feedback loops that improve how models perform. AI labs and enterprises use micro1 to train models and build reliable AI agents through advanced evaluations and reinforcement learning environments. Experts contribute directly to how AI systems learn, reason, and perform across domains like finance, healthcare, engineering, and more. Our platform identifies and vets top talent through an AI recruiter, enabling high-quality contributions at scale.
Our goal is to enable 1 billion people to do meaningful work by applying their expertise to AI. We’ve raised $40M+ in funding, and our AI recruiter has powered over 1 million AI-led interviews as our global network of experts grows into the human intelligence layer for AI.

Job Description

Job Title: Sr. Infrastructure Security Engineer


Job Type: Full-Time


Location: Remote


micro1 is the end-to-end human data infrastructure behind AGI. Our AI recruiter model is used by frontier AI labs and Fortune 10s to source, vet, and deploy PhDs and professors from the world’s top universities at scale. These experts are placed directly into the training loops of the most advanced AI systems, powering the breakthroughs that move models forward. Our data platform converts their expertise into high-signal training datasets, and our talent management tooling measures, routes, and improves performance at scale.


The Role

We’re looking for an infrastructure security engineer who thinks like a builder, not an auditor. You’ll design and evolve the security foundations of a fast-moving, AI-native organization—where the goal isn’t just to reduce risk, but to enable us to move faster safely.


This role sits at the intersection of systems engineering, security research, and applied automation.


What You’ll Do

  1. Architect security systems across AWS, GCP, and Azure that scale with rapid product iteration.
  2. Build automated guardrails and self-healing infrastructure to eliminate entire classes of vulnerabilities.
  3. Design and implement Zero Trust primitives—identity, access, and policy as code—from first principles.
  4. Develop Detection-as-Code pipelines, treating detection logic like production systems (versioned, tested, deployable).
  5. Explore and deploy AI-native approaches to threat modeling, anomaly detection, and incident response.
  6. Partner closely with engineering and research teams to embed security into the development lifecycle.
  7. Write clearly and think clearly—security decisions should be legible, reviewable, and composable.
  8. Continuously rethink assumptions and evolve our security posture as new threats and paradigms emerge.


What We’re Looking For

  1. Deep experience securing distributed, multi-cloud systems (AWS, GCP, Azure).
  2. Strong programming ability (Python, Go, Rust, or similar) with a bias toward automation and systems thinking.
  3. Experience with Infrastructure as Code (Terraform, Pulumi, etc.) and integrating security into CI/CD pipelines.
  4. Strong understanding of identity systems, least privilege, and Zero Trust architectures.
  5. Familiarity with modern detection ecosystems (e.g., Sigma, Panther, GuardDuty, SCC) and signal quality challenges.
  6. A mindset that treats security as an engineering and systems problem—not compliance.
  7. Comfort working in a highly asynchronous, writing-heavy, and fast-paced environment.


Nice to Have

  1. Experience securing Kubernetes and containerized workloads at scale.
  2. Contributions to open-source security tools or research.
  3. Experience applying or experimenting with AI/ML in security contexts.
  4. Strong opinions about how security should evolve in an AI-first world.


Compensation & Benefits Notice

The national pay range for this full-time position is base salary of $180,000 –$200,000 USD. All employees are eligible for equity compensation, and employees may also receive performance-based bonuses, dependent on role and subject to company policies. micro1 provides a comprehensive benefits package, including up to 100% reimbursement for health-insurance premiums, paid time off, a 401(K) plan with a company match, and additional benefits designed to support a high-performing, remote-first workforce.


micro1 is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, sexual orientation, or gender identity), national origin, age, disability, genetic information, veteran status, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance and/or a reasonable accommodation during the application process, reach out to support@micro1.ai.


Our hiring process utilizes artificial intelligence tools to assist in candidate screening and assessment. Our AI tools are designed to complement, not replace, human decision-making.


Disclaimer

The information contained in this job posting, including but not limited to role responsibilities, qualifications, compensation, and benefits, is provided for informational purposes only and does not constitute a binding offer of employment. micro1 reserves the right to amend, modify, or withdraw any portion of this posting at its sole discretion and without prior notice. All employment decisions are made in accordance with applicable laws and regulations.

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