V

Vanguard

Manages investment funds and retirement savings

Principal AI/ML Engineer

Full-TimeUpdated on 10/23/2026
No salary listed
Expert
Malvern, PA, USA+1 moreMore locations: Charlotte, NC, USA
HybridHybrid working model; office attendance expectations are not specified.
AI & Machine LearningApplied Machine Learning
No H1B Sponsorship

About the job

Requirements
  • At least 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 machine learning 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, machine learning operations, 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.
  • Experience working in highly regulated environments and mission-critical production systems.
Responsibilities
  • Define and lead the technical architecture for enterprise-scale AI and machine learning 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.
  • Partner closely with AI researchers to transform prototypes into production-grade solutions.
  • Lead efforts to operationalize advanced AI capabilities, including large language models, Trustworthy and Responsible AI, and agentic AI systems.
  • Establish repeatable pathways that accelerate innovation-to-production cycles.
  • Ensure production solutions maintain scientific rigor while meeting enterprise engineering standards.
  • Bridge research breakthroughs and sustainable business value.
  • 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 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.
  • Own the operational excellence, reliability, performance, and availability of 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.
  • 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.
  • Mentor AI and machine learning engineers within the team.
  • Foster a culture of technical excellence and operational ownership, with engineers accountable for building, running, and supporting systems in production.
  • Represent the team as a thought leader in scalable AI deployment, operational excellence, and responsible AI practices.

About the company

Vanguard manages mutual funds, exchange-traded funds, and retirement investments for individuals, financial advisers, and institutions. Its Vanguard 500 Index Fund gives investors exposure to large U.S. companies by tracking the S&P 500, while its lineup also includes actively managed stock and bond funds. Clients invest through brokerage and retirement accounts, workplace plans, or advisers, and advisory services build and maintain portfolios around their goals. Fund expenses and advisory fees pay for investment management and account services, with advisory charges based on the assets managed. Founded in 1975, Vanguard is headquartered in Malvern, Pennsylvania, United States.

Company Size

10,001+

Company Stage

Private

Total Funding

$11.2M

Headquarters

Kline Township, Pennsylvania

Founded

1975

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Simplify Jobs

Simplify's Take

What believers are saying

  • U.S. retirement support adds compensation: Vanguard contributes 10% of salary to 401(k)s, plus a match up to 4%.
  • Lower fees support competitiveness: February 2026 cuts reached 84 Vanguard fund share classes across 53 funds.
  • Advisor custody is the next expansion: Vanguard agreed to acquire wealth platform Altruist in August 2026.

What critics are saying

  • Active strategies depend on partners: Vanguard uses over 20 outside managers, including Wellington and T. Rowe Price.
  • Cash awards depend on collective results: Vanguard's U.S. Partnership Plan links payments to company performance and client outcomes.
  • Stewardship faces binding limits: Vanguard's February 2026 Texas settlement restricts climate advocacy for specified U.S. fund holdings.

What makes Vanguard unique

  • Fund investors sit above the company: Vanguard is owned by its funds, which their shareholders own.
  • Costs stay exceptionally low: Vanguard's U.S. funds averaged 0.07% in asset-weighted expenses in 2025.
  • Index investors choose their voting approach: Vanguard Investor Choice applies selected policies to eligible fund shareholders' corporate votes.

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Benefits

  • Best-in-class medical, dental & vision coverage
  • Onsite health clinic & fitness center
  • Health Smart Rewards program
  • Vanguard Retirement Savings Plan
  • Education Benefits
  • PTO
  • Family Planning Benefist
  • Parental leave
  • Personal development opportunities
  • Volunteer Time Off

Growth & Insights and Company News

6 month growth

6%

1 year growth

8%

2 year growth

8%
Yahoo Finance
Oct 12th, 2026
$500K in VOO puts $40,400 into NVIDIA alone as top 10 holdings hit 37.78%

A $500,000 position in the Vanguard S&P 500 ETF (VOO) puts $40,400 into NVIDIA alone, as the chipmaker made up 8.08% of the fund on August 31, 2026. The fund's top 10 holdings account for 37.78%, or $188,900. The S&P 500 weights companies by market value, so NVIDIA's growth lifted its share automatically. Its stock rose 1,005.49% over five years to October 9, 2026, while VOO rose 90.68%. Concentration brings swings. A 2% weekly drop in NVIDIA on that slice costs about $808, roughly five years of VOO's $150 annual fee at 0.03%. Investors who also hold NVIDIA shares or a tech fund may face higher exposure than the fund's weight suggests.

PR Newswire
Sep 9th, 2026
Council for Economic Education launches National Investment Challenge with Vanguard's My Classroom Investor simulation

The Council for Economic Education has launched the National Investment Challenge, a new competition designed to teach high school students foundational investing skills. The challenge will use Vanguard's free My Classroom Investor simulation, where students manage mock 30-year portfolios and respond to market shifts and unexpected events. Early access opens in November, with the competition starting in January 2027. It will include qualifying rounds, state rounds, and culminate in a national final in Philadelphia in May, with teams competing for cash prizes. In the simulation, students choose characters with financial goals and manage portfolios containing stocks, bonds, and ETFs. The programme aligns with CEE Standards and the CFA Investment Foundations exam, helping students build credential-ready skills whilst learning long-term investment principles.

Kalkine Media
Sep 4th, 2026
Vanguard Group Acquires 5.002% Voting Stake in Qantas Airways as Substantial Holder

Catch the latest updates from Australia's premier stock exchange & market indices.

Axios
Aug 26th, 2026
Vanguard pays $4.6B for RIA software startup Altruist

Vanguard is pushing into Fidelity's turf.

PR Newswire
Aug 26th, 2026
Vanguard to acquire AI-forward wealth platform Altruist to expand financial advice reach

Vanguard has entered a definitive agreement to acquire Altruist, an AI-forward wealth technology and custody platform serving financial advisors. The deal, expected to close later this year pending regulatory approvals, aims to expand access to financial advice by enabling advisors to serve more clients efficiently. Vanguard first invested in Altruist in 2020 to increase competition in the registered investment advisor custody space. Following the acquisition, Altruist will operate as a standalone business, retaining its leadership, brand, and operating model whilst gaining access to Vanguard's resources and investment expertise. The transaction terms were not disclosed. Altruist will continue focusing on providing integrated technology solutions for independent financial advisors, combining custody services with portfolio management tools.