Principal Architect

Ensemble Health Partners; Kentucky; Hybrid; USD 149,000 - 223,000; Full time

Benefits offered by this job

Comprehensive benefits

Tuition reimbursement

Certification support

Job summary

Ensemble Health Partners is seeking a Principal Architect for AI Security to define and lead the security architecture strategy across our AI platform, products, and infrastructure. You will influence roadmaps, mentor senior engineers, and partner with leadership to ensure trustworthy and defensible AI systems.

You will own the AI security roadmap, drive zero-trust adoption, embed security controls through the ML lifecycle, and translate regulations (NIST AI RMF) into concrete architectural

Qualifications

• 12+ years in information security
• At least 5 years focused on cloud or platform architecture
• Hands-on security for ML/AI systems (LLMs, pipelines, serving)
• Experience with AI threat vectors (adversarial ML, data poisoning)
• Cloud security including IAM, networking, secrets, audit logging
• SSDLC and secure software development lifecycle
• Leadership in architectural decisions at scale
• Strong written and verbal communication (engineers to executives)
• Familiarity with AI governance frameworks (NIST AI RMF)
• Certifications such as CISSP, CCSP, or cloud security specializations

Responsibilities

• Define end-to-end security architecture for AI/ML systems
• Develop threat models for AI attack surfaces
• Lead design reviews for secure-by-default AI
• Own the AI security roadmap aligned with product and compliance
• Embed security controls throughout the ML lifecycle with ML engineers
• Drive zero-trust, least-privilege, and defense-in-depth across AI infra

Skills

AI security architecture

Cloud security

Security leadership

Threat modeling

LLMs security

Zero-trust

Communication

Regulatory compliance

AI governance

Security architecture reviews

Education

CISSP

CCSP

Tools

AWS

Azure

GCP

Job description

Thank you for considering a career at Ensemble! Ensemble is a leading provider of technology-enabled revenue cycle management solutions for health systems, including hospitals and affiliated physician groups. They offer end-to-end revenue cycle solutions as well as a comprehensive suite of point solutions to clients across the country. Ensemble keeps communities healthy by keeping hospitals healthy. We recognize that healthcare requires a human touch, and we believe that every touch should be meaningful. This is why our people are the most important part of who we are. By empowering them to challenge the status quo, we know they will be the difference!

O.N.E Purpose

• Customer Obsession: Consistently provide exceptional experiences for our clients, patients, and colleagues by understanding their needs and exceeding their expectations.
• Embracing New Ideas: Continuously innovate by embracing emerging technology and fostering a culture of creativity and experimentation.
• Striving for Excellence: Execute at a high level by demonstrating our “Best in KLAS” Ensemble Difference Principles and consistently delivering outstanding results.

The Opportunity

About the Role As Principal Architect for AI Security, you will define and lead the security architecture strategy for our AI platform, products, and infrastructure. This is a rare opportunity to shape how a fast-moving organization thinks about security at the intersection of machine learning, cloud infrastructure, and product delivery. You will operate as a technical authority — influencing roadmap, mentoring senior engineers, and partnering with leadership to ensure our AI systems are trustworthy, resilient, and defensible.

What You'll Do

Architecture & Strategy

• Define the end-to-end security architecture for AI/ML systems, including training pipelines, inference infrastructure, model storage, and APIs.
• Develop and maintain a threat model for AI-specific attack surfaces: model poisoning, adversarial inputs, prompt injection, model inversion, and supply chain risks.
• Lead design reviews for high-impact systems, setting standards for secure-by-default AI development.
• Own the AI security roadmap, aligning it with product goals, compliance requirements, and industry best practices.

Technical Leadership

• Serve as an authority on AI security decisions across engineering, product, and research teams.
• Partner with ML engineers to embed security controls throughout the model lifecycle — from data ingestion to deployment and monitoring.
• Drive adoption of zero-trust principles, least-privilege access, and defense-in‑depth across AI infrastructure.

Governance & Compliance

• Translate evolving AI-specific regulations (NIST AI RMF) into actionable architectural requirements.
• Partner with legal, privacy, and compliance teams to ensure AI systems meet internal policies and external obligations.
• Produce executive-ready security assessments, risk summaries, and mitigation plans.

Cross-Functional Collaboration

• Act as a bridge between security, platform engineering, data science, and product management.
• Represent the organization in external forums, customer security reviews, and industry working groups.
• Contribute to open‑source tooling, publications, or speaking engagements to build the organization’s credibility in AI security.

What You’ll Bring

• 12+ years of experience in information security, with at least 5 years focused on cloud or platform architecture.
• Deep hands‑on expertise in securing ML/AI systems, including LLMs, training pipelines, and model serving infrastructure.
• Demonstrated experience with AI-specific threat vectors: adversarial ML, data poisoning, model extraction, and prompt injection.
• Proficiency in cloud security (AWS, Azure, or GCP) including IAM, network segmentation, secrets management, and audit logging.
• Strong background in application security, cryptography, and secure software development lifecycle (SSDLC).
• Experience leading architectural decisions in a large-scale engineering organization.
• Excellent written and verbal communication — you can explain complex security risks to both engineers and executives.
• Preferred Familiarity with AI governance frameworks: NIST AI RMF.
• Relevant certifications such as CISSP, CCSP, or cloud security specializations.
• Published research, conference talks, or open‑source contributions in AI/ML security.

Additional Information

This position pays between $148,800 - 223,200 based on experience and geographical location. Must be inquisitive and demonstrate openness to innovation including AI to explore better processes and ways to alleviate friction and improve patient and client experiences. This is a remote position; however, candidates must be willing and able to travel to and work onsite at client, temporary, or corporate office locations as business needs require.

Join an award‑winning company

• Five‑time winner of “Best in KLAS” 2020‑2022, 2024‑2025
• Black Book Research’s Top Revenue Cycle Management Outsourcing Solution 2021‑2024
• 22 Healthcare Financial Management Association (HFMA) MAP Awards for High Performance in Revenue Cycle 2019‑2024
• Leader in Everest Group’s RCM Operations PEAK Matrix Assessment 2024
• Clarivate Healthcare Business Insights (HBI) Revenue Cycle Awards for strong performance 2020, 2022‑2023
• Energage Top Workplaces USA 2022‑2024
• Fortune Media Best Workplaces in Healthcare 2024
• Monster Top Workplace for Remote Work 2024
• Great Place to Work certified 2023‑2024

Innovation Work-Life Flexibility Leadership Purpose + Values

• Bottom line, we believe in empowering people and giving them the tools and resources needed to thrive.
• Associate Benefits – We offer a comprehensive benefits package designed to support the physical, emotional, and financial health of you and your family, including healthcare, time off, retirement, and well‑being programs.
• Our Culture – Ensemble is a place where associates can do their best work and be their best selves. We put people first, last and always.
• Growth – We invest in your professional development. Each associate will earn a professional certification relevant to their field and can obtain tuition reimbursement.
• Recognition – We offer quarterly and annual incentive programs for all employees who go beyond and keep raising the bar for themselves and the company.

Ensemble is an equal employment opportunity employer. It is our policy not to discriminate against any applicant or employee based on race, color, sex, sexual orientation, gender, gender identity, religion, national origin, age, disability, military or veteran status, genetic information or any other basis protected by applicable federal, state, or local laws.

Ensemble also prohibits harassment of applicants or employees based on any of these protected categories.

Ensemble provides reasonable accommodations to qualified individuals with disabilities in accordance with the Americans with Disabilities Act and applicable state and local law.

If you require accommodation in the application process, please contact [e-mail].

This posting addresses state specific requirements to provide pay transparency.

Compensation decisions consider many job-related factors, including but not limited to geographic location; knowledge; skills; relevant experience; education; licensure; internal equity; time in position.

A candidate entry rate of pay does not typically fall at the minimum or maximum of the role’s range.

Ensemble is dedicated to providing our clients with experienced healthcare finance and revenue cycle professionals. We believe that our core values of trust, integrity, loyalty and service married with the belief that our work is worthwhile helps us build and sustain sincere relationships with our associates and clients.

We believe we foster an environment where talented individuals can excel and shine. Our team believes that people are the most important part of our success and that when we take care of our people, they pay it forward by providing our clients with excellent results and world‑class service.