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Principal, AI/ML Engineer

Fidelity

Fidelity

Software Engineering, Data Science
Durham, NC, USA
USD 107k-216k / year
Posted on Dec 18, 2025

Job Description:

Principal Machine Learning Ops Engineer

As a Principal Machine Learning Ops Engineer within the Enterprise Data Science Platform team, you will create frameworks to support large-scale ML infrastructure and pipelines, including tools for the containerization and deployment of ML models. Collaborating with Data Scientists, you will develop advanced analytics and machine learning platforms to enable the prediction and optimization of models. You will extend existing ML platforms for scaling model training and deployment, and partner with various business and engineering teams to drive the adoption and integration of model outputs. This role is essential in leveraging Data Science to deliver exceptional customer experiences in financial services.

The Team

The enterprise data science platform (part of the Fidelity Data Architecture team in the Enterprise Technology BU) is focused on delivering AI/ML solutions for the organization. As part of this team, you will be responsible for building advanced cloud and software solutions in collaboration with Data Scientists to support packaging, deployment, and scaling of AI/ML Models in production.

The Expertise You Have

  • Has bachelor’s or master’s Degree in a technology related field (e.g. Engineering, Computer Science, etc.).

  • 8+ years of proven experience in developing and implementing Python-based cloud applications and/or machine learning solutions.

  • 2+ years of experience in developing ML infrastructure and MLOps in the Cloud using AWS Sagemaker.

  • 5+ years of experience in building cloud-native applications using a range of AWS services, including but not limited to SageMaker AI, Bedrock, S3, CloudFormation (CFT), SNS, SQS, Lambda, AWS Batch, Step Functions, EventBridge, and CloudWatch. Familiarity with both Azure Cognitive Services, particularly for deploying OpenAI models, and Google Compute Vertex is beneficial.

  • Extensive experience working with machine learning models with respect to deployment, inference, tuning, and measurement required.

  • Experience in Object Oriented Programming (Java, Scala, Python), SQL, Unix scripting or related programming languages and exposure to some of Python’s ML ecosystem (numpy, panda, sklearn, tensorflow, etc.).

  • Experience with building data pipelines in getting the data required to build and evaluate ML models, using tools like Apache Spark or other distributed data processing frameworks.

  • Data movement technologies (ETL/ELT), Messaging/Streaming Technologies (AWS SQS, Kinesis/Kafka), Relational and NoSQL databases (DynamoDB, EKS, Graph database), API and in-memory technologies.

  • Strong knowledge of developing highly scalable distributed systems using Open-source technologies.

  • Strong experience with CI/CD tools, particularly Jenkins, for automating and streamlining the software development pipeline. Proficient in using version control systems like Git for effective code management and collaboration. Hands-on experience with containerization technologies such as Docker for building and deploying applications. Expertise in infrastructure as code (IaC) services, including AWS CloudFormation and tools like Terraform or OpenTofu, for managing and provisioning cloud resources

  • Solid experience in Agile methodologies (Kanban and SCRUM).

The Skills You Bring

  • You have strong technical design and analysis skills.

  • You the ability to deal with ambiguity and work in fast paced environment.

  • Your experience supporting critical applications.

  • You are familiar with applied data science methods, feature engineering and machine learning algorithms.

  • Your Data wrangling experience with structured, semi-structure and unstructured data.

  • Your experience building ML infrastructure, with an eye towards software engineering.

  • You have excellent communication skills, both through written and verbal channels.

  • You have excellent collaboration skills to work with multiple teams in the organization.

  • Your ability to understand and adapt to changing business priorities and technology advancements in Big data and Data Science ecosystem.

The Value You Deliver

  • Designing & developing a feature generation & store framework that promotes sharing of data/features among different ML models.

  • Partner with Data Scientists and to help use the foundational platform upon which models can be built and trained.

  • Operationalize ML Models at scale (e.g. Serve predictions on tens of millions of customers).

  • Build tools to help detect shifts in data/features used by ML models to help identify issues in advance of deteriorating prediction quality, monitoring the uncertainty of model outputs, automating prediction explanation for model diagnostics.

  • Exploring new technology trends and leveraging them to simplify our data and ML ecosystem.

  • Driving Innovation and implementing solutions with future thinking.

  • Guiding teams to improve development agility and productivity.

  • Resolving technical roadblocks and mitigating potential risks.

  • Delivering system automation by setting up continuous integration/continuous delivery pipelines.

The base salary range for this position is $107,000-216,000 USD per year.

Placement in the range will vary based on job responsibilities and scope, geographic location, candidate’s relevant experience, and other factors.

Base salary is only part of the total compensation package. Depending on the position and eligibility requirements, the offer package may also include bonus or other variable compensation.

We offer a wide range of benefits to meet your evolving needs and help you live your best life at work and at home. These benefits include comprehensive health care coverage and emotional well-being support, market-leading retirement, generous paid time off and parental leave, charitable giving employee match program, and educational assistance including student loan repayment, tuition reimbursement, and learning resources to develop your career. Note, the application window closes when the position is filled or unposted.

Please be advised that Fidelity’s business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.

Most roles at Fidelity are Hybrid, requiring associates to work onsite every other week (all business days, M-F) in a Fidelity office. This does not apply to Remote or fully Onsite roles.

Certifications:

Category:

Information Technology

Company overview

At Fidelity, we are passionate about making our financial expertise broadly accessible and effective in helping people live the lives they want! We are a privately held company that places a high degree of value in creating and nurturing a work environment that attracts the best talent and reflects our commitment to our associates. We are proud of our diverse and inclusive workplace where we respect and value our associates for their unique perspectives and experiences. For information about working at Fidelity, visit FidelityCareers.com. Fidelity Investments is an equal opportunity employer. Fidelity will reasonably accommodate applicants with disabilities who need adjustments to complete the application or interview process.

AI Guidelines

Learn about our guidelines for use of AI when applying for a Fidelity job

If you would like to request an accommodation, please contact us at:

accommodations@fmr.com

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Join us

At Fidelity, you’ll find endless opportunities to build a meaningful career that positively impacts peoples’ lives, including yours. You can take advantage of flexible benefits that support you through every stage of your career, empowering you to thrive at work and at home. Honored with a Glassdoor Employees’ Choice Award, we have been recognized by our employees as a top 10 Best Place to Work in 2024. And you don’t need a finance background to succeed at Fidelity—we offer a range of opportunities for learning so you can build the career you’ve always imagined.

Fidelity's working model blends the best of working offsite with maximizing time together in person to meet associate and business needs. Currently, most hybrid roles require associates to work onsite all business days of one assigned week per four-week period (beginning in September 2024, the requirement will be two full assigned weeks).

We invite you to Find Your Fidelity at fidelitycareers.com.

Fidelity Investments is an equal opportunity employer. We believe that the most effective way to attract, develop and retain a diverse workforce is to build an enduring culture of inclusion and belonging.

Fidelity will reasonably accommodate applicants with disabilities who need adjustments to participate in the application or interview process. To initiate a request for an accommodation, contact the HR Accommodation Team by sending an email to accommodations@fmr.com, or by calling 800-835-5099, prompt 2, option 3.

At Fidelity, we value honesty, integrity, and the safety of our associates and customers within a heavily regulated industry. Certain roles may require candidates to go through a preliminary credit check during the screening process. Candidates who are presented with a Fidelity offer will need to go through a background investigation and may be asked to provide additional documentation as requested. This investigation includes but is not limited to a criminal, civil litigations and regulatory review, employment, education, and credit review (role dependent). These investigations will account for 7 years or more of history, depending on the role. Where permitted by federal or state law, Fidelity will also conduct a pre-employment drug screen, which will review for the following substances: Amphetamines, THC (marijuana), cocaine, opiates, phencyclidine.

Benefits
Learning & development
Culture

Benefits that adapt to everything life sends your way

401(k) with company match

Medical, dental, vision and prescription drug coverage

16-week maternity leave & 12-week parental leave

Student loan assistance

Fidelity is invested in you

Committed to Professional Development

At Fidelity, we are constantly adapting to the changing needs of our customers, new technologies, and better ways of working. And we empower our employees to do the same, with an emphasis on developing skills and connections that will help propel you forward in your career while being able to make an impact for Fidelity’s customers around the world.

We offer a wide range of options for professional development including online, in-person, and mentor driven solutions. Special interest and networking groups are also part of our culture of empowerment, personal and professional enrichment, diversity and inclusion, and knowledge sharing.

Continuing Education & Training

  • Assess, build, and align your development plan through resources like our skill-building classroom and online courses.
  • Video-based training for technology, leadership, management & more.
  • Ongoing skills development and coaching opportunities.
  • Paid training with a facilitator who is dedicated to your onboarding and will track and evaluate your progress, giving you strategies to improve.
  • A range of talent development programs to support career mobility.

Mentoring

  • Utilize the skills of experienced leaders to enrich your career.
  • Dedicated mentors to help you grow into new areas of Fidelity’s business as you develop new skills.
  • An open atmosphere of knowledge sharing and collaboration.
  • Opportunities to pay it forward, sharing the knowledge you develop and as you help others define how they want their career to take shape.

Our Commitment

Discover opportunities to build a fulfilling career within a supportive culture that celebrates individuality. We empower our associates to pursue career paths that align with their unique goals and personalities.

Giving back to our communities

Throughout Fidelity, you’ll find a genuine commitment to social responsibility – where we strive to make an impact for customers, while also making an impact on the world.

Fidelity Cares

  • Provides associates with opportunities to actively volunteer and share their talents.
  • Hosts numerous company-wide volunteer events (in-person and virtual).
  • Partners with nonprofit organizations to support our local communities.
  • More than 12,500 associates donate time annually – from interns to SVPs.
  • Impact includes refurbishing schools, donating books and supplies, and teaching financial literacy.

Fidelity Charitable®

  • Created to make it easy for people to support charitable organizations they care about.
  • Helped deliver $14.9billion in donor-recommended grants to charity in 2024.
  • Supported more than 433,000 unique charities around the world.
  • Since its inception, more than $100 billion has been given to public charities.

Technology careers at Fidelity

Imagine and create the next generation of financial products and tools.

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