Principal Architect
Ensemble Health Partners
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Benefits offered by this job
Job summary
Ensemble Health Partners is seeking a Principal Architect for AI Security to define and lead the security architecture strategy for AI platforms, products, and infrastructure. You will shape security at the intersection of ML, cloud, and product delivery, guiding roadmap, mentoring senior engineers, and partnering with leadership to keep AI systems trustworthy.
You will collaborate with security, platform engineering, data science, and product teams, driving zero-trust and defense-in-depth while
Qualifications
- 12+ years of information security experience.
- 5+ years in cloud or platform architecture.
- Hands-on in securing ML/AI systems (LLMs, pipelines, serving).
- Experience with AI-specific threats: adversarial ML, poisoning, prompt injection.
- Cloud security including IAM, network segmentation, secrets management, audit logging.
- Strong SSDLC knowledge and architectural decision-making in large orgs.
Responsibilities
- Define end-to-end security architecture for AI/ML systems (training, inference, storage, APIs).
- Lead threat modeling for AI surfaces and secure-by-default reviews.
- Own the AI security roadmap aligned with product goals and compliance.
- Embed security controls across model lifecycle with ML engineers.
- Promote zero-trust, least-privilege, defense-in-depth across AI infra.
- Translate AI regulations (NIST RMF) into actionable requirements.
- Collaborate with legal, privacy, and compliance teams for policy conformance.
Skills
Job description
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!
- 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.
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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
#LI-RL1
#LI-REMOTE
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. A few of those include:
- 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. Our culture is rooted in collaboration, growth, and innovation.
- 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 TA@ensemblehp.com.
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.
Employment Disclaimers – Ensemble
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