Principal AI/ML Scientist
Location(s) Toronto, ON, CA .
Work model Hybrid
Date posted 01/31/2025
Job requisition 165620
Vanguard is one of the world's largest and most respected investment management companies, known for its client-centric approach, low-cost investment products, and commitment to long-term, data-driven investment strategies. Our Enterprise AI and Research (EAiR) team is actively working on advancing AI innovation by integrating cutting-edge concepts into the Vanguard AI ecosystem, establishing strategic AI partnerships, and building enterprise-level AI capabilities to empower Vanguard clients with advanced AI research and technology. The team aims to ultimately accelerate critical business solutions with AI capabilities. Some of the team’s areas of research include areas around Agentic AI, Responsible AI, and Cognitive AI Architecture.
Role Overview:
As a Principal AI Research Scientist, you will drive groundbreaking research in Large Language Models, Agentic AI, Responsible AI, and Cognitive AI Architecture, while contributing significantly to the broader AI research community. You will bring your extensive experience in AI principles, methodologies, and tools to lead cutting-edge projects, author high-impact publications, and represent the organization at conferences and workshops. In addition to your expertise in AI, you will foster strong relationships with university/industry partners, identify strategic alignment opportunities, and facilitate productive collaborations to advance both fundamental and applied AI research. Your ability to combine deep technical knowledge with strong communication skills will enable you to effectively translate complex concepts for diverse audiences, ensuring the organization remains at the forefront of AI innovation and ethical practices.
Core Responsibilities:
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Research on new and innovative techniques to solve Artificial Intelligence/Machine Learning problems, supporting Vanguard strategic business goals. Within, but not limited to the domain of LLM, Autonomous Agents, Knowledge Graph, AI in Finance, Generative AI and Reinforcement Learning.
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Serves as an expert on cross-functional teams for large strategic initiatives. Educate and train business stakeholders and leaders to adopt AI research innovation.
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Lead AI research and strategies that would create long-term business benefits to Vanguard. Facilitate research collaboration with University Partners. Publish findings to AI/ML conferences including NeurIPS, ICML, ICLR, EMNLP, ACL, AAAI etc.
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Leads and executes deep dive diagnostic, predictive, and prescriptive analytics to support data-driven business decision making. Creates alternative model approaches to assess the design of complex models and advance future capabilities.
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Lead R&D of industry-leading algorithms for LLM finetuning paradigms, Autonomous Agents, Knowledge Graph, Generative AI, Responsible AI and their applications in financial domains to significantly improve our Vanguard client experiences.
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Guide and mentor other research scientists and engineers in the development and implementation of technical roadmaps.
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Engage with internal stakeholders to understand and explore business processes to develop hypotheses. Brings structure to requests and translates requirements into an analytical approach.
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Collaborate with various business and operation units to identify business opportunities and design innovative solutions to optimize processes and promote informed decision-making.
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Work closely with product teams and mentor them on modern ML best practices, and keep the wider team informed of the state of the art.
Qualifications:
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PhD or Master in a relevant discipline such as Computer Science, Cognitive Science, Mathematics, Statistics, Physics, Electrical & Computer Engineering.
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At least 10+ years of experience in AI research in industry or academic setting
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Strong expertise in various AI/ML concepts and paradigm. Strong expertise in at least one or more of the following areas: Large Language Models, Natural Language Processing, Reinforcement Learning, Knowledge Graph, Time-Series Analysis, or Generative AI.
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Experience with machine learning development lifecycle and AI/ML methods such as Transformers, Diffusion Models, SHAP, LLM and GenAI etc.
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Strong software engineering capabilities and hands-on experience with various machine learning and deep learning frameworks including numpy, scikit-learn, keras, PyTorch and Tensorflow
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A strong understanding of the real-world advantages and drawbacks of various algorithms and the ability to measure success.
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Ability to write clean, understandable code that follows leading industry standards and practices and is well-documented, and to build easily reproducible models.
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.
Our commitment to you
Vanguard takes the same long-term view of your success—at work and in life—with Benefits and Rewards packages that reflect what you care about, throughout all the phases and stages of your life.
Our Total Rewards programs provide you and your loved ones with wellness support for key areas in your life:
Financial wellness
We’re committed to enabling your financial success and provide competitive offers and programs.
Physical wellness
We’re committed to providing benefits that support your physical health and wellness.
Personal wellness
We’re committed to providing resources that help support the full scope of your life.
Vanguard is an equal opportunity employer. Vanguard is committed to providing all crew members a working environment that is free from discrimination, prejudice and bias. Through this Equal Employment Opportunity (EEO) Policy, Vanguard reaffirms its commitment to equal employment opportunity for all applicants and crew members without regard to race, color, national origin or ancestry, religion, gender, sex, sexual orientation, gender identity or expression, age, disability, marital status, veteran or military status. In addition, Vanguard prohibits discrimination based on genetic information, as well as any other characteristic protected by federal, state or local law.
Applicants with disabilities may be entitled to reasonable accommodation under the Americans with Disabilities Act and certain state or local laws. A reasonable accommodation is a change in the way things are normally done which will ensure an equal employment opportunity without imposing undue hardship on Vanguard. Please inform careers@vanguard.com if you need assistance completing this application or to otherwise participate in the application process.
Vanguard is an equal opportunity employer. Vanguard is committed to providing all crew members a working environment that is free from discrimination, prejudice and bias. Through this Equal Employment Opportunity (EEO) Policy, Vanguard reaffirms its commitment to equal employment opportunity for all applicants and crew members without regard to race, color, national origin or ancestry, religion, gender, sex, sexual orientation, gender identity or expression, age, disability, marital status, veteran or military status. In addition, Vanguard prohibits discrimination based on genetic information, as well as any other characteristic protected by federal, state or local law.
Applicants with disabilities may be entitled to reasonable accommodation under the Americans with Disabilities Act and certain state or local laws. A reasonable accommodation is a change in the way things are normally done which will ensure an equal employment opportunity without imposing undue hardship on Vanguard. Please inform careers@vanguard.com if you need assistance completing this application or to otherwise participate in the application process.
Empowered to learn, grow, and thrive

Rajesh D.
“Over the past 24 years, I’ve had the privilege of being part of Vanguard that is truly client-owned. What makes this place exceptional is its culture of niceness and collaboration. It’s more than just a job; it’s a place where you can grow, make meaningful contributions, and be part of a supportive, inclusive community. Every day, I am inspired by the dedication of my colleagues and the genuine care we have for our clients. Vanguard is where I and my work truly matters and where one can build a rewarding and fulfilling career.”
2018
Senior Manager, IT Delivery2014
Manager, IT Delivery2005
Technical Scrum Lead2001
Application Engineering Technical Lead2000
Application EngineerEmpowered to learn, grow, and thrive

Rajesh D.
“Over the past 24 years, I’ve had the privilege of being part of Vanguard that is truly client-owned. What makes this place exceptional is its culture of niceness and collaboration. It’s more than just a job; it’s a place where you can grow, make meaningful contributions, and be part of a supportive, inclusive community. Every day, I am inspired by the dedication of my colleagues and the genuine care we have for our clients. Vanguard is where I and my work truly matters and where one can build a rewarding and fulfilling career.”
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2018
Senior Manager, IT Delivery -
2014
Manager, IT Delivery -
2005
Technical Scrum Lead -
2001
Application Engineering Technical Lead -
2000
Application Engineer
Empowered to learn, grow, and thrive

Akua A.
“I discovered my niche in cybersecurity at Vanguard through a combination of IT roles and the Technology Leadership Program. My initial IT roles provided me a solid technical foundation, while the leadership program offered exposure to various facets of technology and strategic thinking. The highly collaborative environment at Vanguard, combined with access to cutting-edge technology and continuous learning opportunities, solidified my commitment to cybersecurity. This specialization not only leverages my skills and interests but also provides a profound sense of purpose, knowing that my work directly contributes to the safety and trust of our clients.”
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2022
Cybersecurity Manager -
2021
Senior SIEM Analyst -
2019
SIEM Analyst -
2017
Incident Response Analyst -
2015
Platform Engineer -
2012
Application Engineer
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