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Principal AI/ML Engineer

Pay
Pay not listedSimilar roles state $166K–$240K
Work setting
Not stated
Employment
Full-time — employment source
Employment type in the employer’s posting: Full time
From the employer’s posting

Before you apply

Work authorization
Must already have the right to workVanguard is not offering visa sponsorship for this position

What you’ll work on

Full posting
  • Define and lead technical architecture for enterprise-scale AI and ML platforms

  • Turn AI research prototypes into production-grade solutions with researchers

  • Lead technical response to complex production incidents and model failures

  • Set monitoring, observability, and SLO practices for AI systems

  • Mentor engineers in troubleshooting, root cause analysis, and incident response

From the employer’s posting
Define and lead the technical architecture for enterprise-scale AI and ML platforms.
Partner closely with AI researchers to transform cutting-edge prototypes into production-grade solutions.
Lead technical response and resolution efforts for complex production incidents, performance degradation, model failures, and system outages.
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.

What you’ll bring

All qualifications

Core experience

  • 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.
  • 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 experience

  • 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.
Qualification wording
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.
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.
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.

About Vanguard

From Malvern to Melbourne, our mission drives us forward and inspires us to be our best.

In the employer’s words · Read in context

Apply at Vanguard

Posting record

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Actively hiringFirst seen by us 2 days ago, still listed, and not a repost of an earlier posting.

Status in our records
Live
First seen by us
Nov 11, 20262 days ago
Recorded sightings
3
Last seen by us
Nov 13, 2026
Employer says posted
Sep 23, 2026

These dates show when we found the posting. Check the employer’s website to confirm it is still accepting applications.

How this job compares

Pay

$166K–$240K is typical

The middle half of what similar US postings state. This one doesn’t list pay.

From 1,394 postings in the last year. Stated ranges, not salaries paid.

Time since we first saw it

Day 2

Early. Similar jobs usually come down between day 8 and day 76.

From 5,460 similar postings that came down. Coming down is not always a hire.

Vanguard is hiring

36 open jobs

Open jobs by the week we first saw them, last 12 weeks.

Hiring record

See how this role fits your experience

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Your next step

Complete your application on vanguard.wd5.myworkdayjobs.com. The employer’s form will show what is required.

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Has Vanguard posted this job before?

Yes. We’ve followed one other Principal AI/ML Engineer job there since November 2026. It is still up.

  1. TorontoStill up after 3 days, first seen Nov 11
  2. This jobUp 3 days so far, first seen Nov 11

Demand for ML Engineer roles

New ML Engineer postings at the employers we follow are up 10% over the last 6 weeks compared with the 6 before.

Weekly new ML Engineer postings at the same employers, from the week of August 17 to the week of November 2. The fewest in a week was 612, the most 1,081, and the latest week had 1,068.
August 17Last week

Each bar is one week of new postings. The darkest bars are the last 6 weeks.

Counted from the hiring pages we’ve followed for at least five weeks, so employers we add don’t look like growth. Updated weekly.

About the role

We file this job under ML Engineer, by the work the posting describes.

ML engineers put machine learning models into products. They write the code that trains, ships, serves and monitors models so a recommendation or prediction works for real users.

Postings ask for strong Python and software engineering, a framework such as PyTorch, cloud services, and more and more often experience with large language models.

A data scientist often works out which model to build; an ML engineer makes it run reliably in production.

US government figures for computer and information research scientists

Median yearly pay, May 2025
$140,300
Expected change, 2025 to 2035
21.8% more jobsagainst 3.5% for all jobs

The government has no code for ML engineers, so these figures are for the closest group, computer and information research scientists.

Source: US Bureau of Labor Statistics, Occupational Employment and Wage Statistics (May 2025) and Employment Projections (2025 to 2035). Occupation code 15-1221.

Job description

View original posting ↗

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 

This role offers a unique opportunity to operate at the forefront of applied artificial intelligence and help bridge world-class research with real-world impact. 

You will: 

  • 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.

Source details

View original posting ↗

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Pay

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Location & working pattern

Malvern, PA

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.
Work authorization
Special Factors Sponsorship Vanguard is not offering visa sponsorship for this position. About Vanguard

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