Principal AI/ML Engineer

The Vanguard Group; Malvern (Chester County); Hybrid; USD 180,000 - 320,000; Full time

Benefits offered by this job

Hybrid work model

Collaboration with world-class AI/ML R

Career growth within Vanguard

Job summary

The Vanguard Group in Malvern, PA, is seeking a senior AI Architecture & Technical Leadership professional to define and lead the technical architecture for enterprise-scale AI/ML platforms.

You will partner with researchers to productionize AI, drive MLOps practices, ensure reliability, and mentor engineers while navigating security and governance in mission-critical environments.

Qualifications

• 10+ years of experience in software, ML, or AI engineering.
• Experience deploying large-scale AI/ML systems in production.
• Proven track record leading complex technical initiatives.
• Strong knowledge of software architecture, reliability, observability, ML Ops, DevOps, and cloud technologies.
• Ability to mentor engineers and lead teams through highly complex technical and operational challenges.

Responsibilities

• Define and lead the technical architecture for enterprise-scale AI and ML platforms.
• Productize AI research into production-grade solutions.
• Drive AI platform engineering practices and reliability, including MLOps and observability.
• Own operational excellence and incident response for AI products.
• Mentor AI/ML engineers and lead teams through production readiness and best practices.

Skills

Software architecture

ML/AI engineering

Mentoring engineers

DevOps / MLOps

Cloud technologies

Leadership

Observability

Job description

Key Responsibilities

AI Architecture & Technical Leadership

Define and lead the technical architecture for enterprise-scale AI and ML platforms. Design scalable, resilient, and reusable AI systems capable of supporting mission-critical workloads. Establish architectural standards, engineering patterns, and best practices for AI deployment and operations. Drive technical decisions around model serving, inference optimization, agent architectures, orchestration frameworks, observability, and AI infrastructure.

Productize AI Research

Partner closely with AI researchers to transform cutting-edge prototypes into production-grade solutions. Lead efforts to operationalize advanced AI capabilities across areas such as: Large Language Models (LLMs) Trustworthy and Responsible AI Agentic AI Systems Establish repeatable pathways that accelerate innovation-to-production cycles. Ensure production solutions maintain scientific rigor while meeting enterprise engineering standards. Bridge the gap between research breakthroughs and sustainable business value.

Engineering Excellence & Scalability

Solve the organization’s most complex AI engineering and scalability challenges. Design systems that operate reliably at enterprise scale while balancing performance, latency, governance, security, and cost. Drive adoption of MLOps, LLMOps, and AI platform engineering best practices. Improve the robustness, maintainability, observability, and operational readiness of our AI products. Identify and eliminate architectural bottlenecks that impact scale, reliability, or client experience. Raise standards through coaching, architecture reviews, design guidance, and technical leadership.

Production Reliability & Operational Leadership

Own the operational excellence, reliability, performance and availability of our products. Lead technical response and resolution efforts for complex production incidents, performance degradation, model failures, and system outages. Serve as the senior technical escalation point for the team’s most challenging production challenges. Establish best practices for AI system monitoring, observability, alerting, incident management, capacity planning, and service-level objectives (SLOs). Mentor and lead junior engineers in troubleshooting, root cause analysis, operational decision-making, and incident response. Drive post-incident reviews focused on learning, continuous improvement, and long-term corrective actions. Develop operational processes that ensure AI solutions remain secure, scalable, performant, and reliable for business-critical use cases. Partner with product, infrastructure, security, and support teams to proactively identify operational risks and continuously improve service reliability.

Mentorship & Thought Leadership

Mentor AI and ML engineers within the team. Foster a culture of technical excellence and operational ownership where engineers are accountable not only for building systems, but also for running and supporting them successfully in production. Represent our team as a thought leader in scalable AI deployment, operational excellence, and responsible AI practices.

Required Qualifications

• 10+ years of experience in software engineering, machine learning engineering, AI engineering, or related technical disciplines.
• Deep expertise designing, deploying, and supporting large-scale AI and ML systems in production environments.
• Demonstrated success leading complex technical initiatives from concept through deployment and ongoing operations.
• Strong knowledge of software architecture, reliability engineering, observability, ML Ops, DevOps, and cloud technologies.
• Proven ability to mentor engineers and lead teams through highly complex technical and operational challenges.

Preferred Qualifications

• Experience with foundation models, Large Language Models, and agentic AI architectures.
• Experience deploying agentic AI systems and multi-agent workflows.
• Experience with Trustworthy AI, Responsible AI, AI governance, or model risk management frameworks.
• Experience optimizing large-scale inference systems and AI infrastructure.
• Experience working in highly regulated environments and mission-critical production systems.

What You’ll Gain

• Work directly with world-class AI researchers on breakthrough technologies and next-generation AI capabilities.
• Own a critical position in the pipeline that transforms cutting-edge research into client value.
• Tackle some of the most difficult AI engineering, scalability, and operational challenges in the industry.
• Build AI capabilities that deliver meaningful business outcomes for clients.
• Develop deep expertise in operating advanced AI systems at scale while collaborating with leaders across research, product, and engineering.

Special Factors Sponsorship

Vanguard is not offering visa sponsorship for this position.

About Vanguard

At Vanguard, we don’t just have a mission- we’re on a mission. To work for the long-term financial wellbeing of our clients. To lead through product and services that transform our clients' lives. To learn and develop our skills as individuals and as a team. From Malvern to Melbourne, our mission drives us forward and inspires us to be our best.

How We Work

Vanguard has implemented a hybrid working model for the majority of our crew members, designed to capture the benefits of enhanced flexibility while enabling in-person learning, collaboration, and connection. We believe our mission-driven and highly collaborative culture is a critical enabler to support long-term client outcomes and enrich the employee experience. Vanguard, one of the world’s leading investment management companies, serves individual investors, institutions, employer-sponsored retirement plans, and financial professionals. We have a diverse and talented crew with a culture that promotes teamwork, along with an unwavering focus on serving our clients' best interests.