Principal Architect
Ensemble Health Partners3 days ago
Remote, United StatesStaff+
Base Salary
$149k - $223k/yr
Responsibilities
- Define end-to-end security architecture for AI/ML systems, including training pipelines, inference infrastructure, model storage, and APIs.
- Develop and maintain threat models for AI-specific attack surfaces such as model poisoning, adversarial inputs, prompt injection, model inversion, and supply-chain risks.
- Lead high-impact design reviews, set secure-by-default AI development standards, and own the AI security roadmap.
- Partner with ML engineers to embed security controls throughout the model lifecycle from data ingestion through deployment and monitoring.
- Drive zero-trust, least-privilege, and defense-in-depth practices across AI infrastructure.
- Translate AI governance and regulatory requirements into actionable architecture requirements and produce security assessments, risk summaries, and mitigation plans.
- Serve as a technical authority across security, platform engineering, data science, product, and research teams.
- Represent the organization in customer security reviews, external forums, and industry working groups, and contribute to open-source tooling, publications, or speaking engagements.
Requirements
- 12+ years of experience in information security, including at least five years focused on cloud or platform architecture.
- Deep hands-on expertise securing ML/AI systems, including LLMs, training pipelines, and model-serving infrastructure.
- Experience with adversarial ML, data poisoning, model extraction, prompt injection, and other AI-specific threat vectors.
- Proficiency in AWS, Azure, or GCP cloud security, including IAM, network segmentation, secrets management, and audit logging.
- Strong background in application security, cryptography, and secure software development lifecycle practices.
- Experience leading architectural decisions in a large-scale engineering organization.
- Excellent written and verbal communication skills for explaining security risks to engineers and executives.
- Familiarity with the NIST AI RMF is preferred.
- Relevant certifications such as CISSP, CCSP, or cloud security specializations are preferred.
- Published research, conference talks, or open-source contributions in AI/ML security are preferred.
Benefits
- Remote position with required travel and onsite work at client, temporary, or corporate locations as business needs require.
- Comprehensive benefits including healthcare, time off, retirement, and well-being programs.
- Professional development investment, including a relevant professional certification for each associate and tuition reimbursement.
- Quarterly and annual incentive programs for employees who exceed expectations.
Tech Stack
Categories
About Ensemble Health Partners
Ensemble Health Partners builds and delivers technology-enabled revenue cycle management services for hospitals, health systems, and affiliated physician groups, spanning end-to-end outsourcing and targeted point solutions. Its offerings include RCM operations, assessments, revenue recovery, and support for Epic and other EHR platforms. Founded in 2014 and headquartered in Cincinnati, the privately held company is backed by Golden Gate Capital and partners with health systems nationwide.