Principal ML Engineer

Turn Enterprise Process Data into Intelligence at Scale About the Team COO Technology operates at the center of the enterprise, enabling the Chief Operating Office to execute with precision, resilience, and confidence. Within it, the Cognitive AI Solutions Team is building the platform that powers the next generation of agentic AI and process intelligence for the firm: a system that automatically discovers how work actually gets done; from multimodal signals including video, documents, clickstream data, and system logs and turns that understanding into AI agents that improve it. This is not a lab. The platform serves multiple lines of business across one of the largest, most regulated operational environments in the world, and every capability we build is designed to be reused across many use cases. The Opportunity We are seeking a Principal ML Engineer to be the technical anchor of the platform itself; a hands-on architect who has built a product or platform that serves many use cases, not a single model or a proof of concept. You will own the hardest technical problems in the system: automating process discovery at enterprise scale, extracting structured insight from multimodal data, and designing the reusable components; agent harnesses, knowledge graphs, evaluation frameworks; that let delivery teams build agentic solutions in weeks instead of quarters. You will set technical direction and then build it yourself. The RIGHT candidate has shipped platforms that other engineers build on, has built and deployed AI agents in production, and can move fluidly between systems architecture, ML modeling, and code. What You’ll Do Architect the platform. Own the end-to-end architecture of a process-intelligence platform designed to serve multiple business domains — defining the abstractions, APIs, and reusable components that make agentic solution-building repeatable and scalable. Automate process discovery. Design and build ML systems that reconstruct how enterprise processes actually execute — mining patterns from clickstream data, documents, videos, and logs; reconciling fragmented entities; and extracting canonical execution paths at scale. Build multimodal understanding pipelines. Apply foundation models and state-of-the-art techniques to extract structured insight from unstructured, multimodal sources — video recordings of work, procedure documents, transcripts, and transactional logs. Engineer agentic systems. Design agent architectures, orchestration frameworks, tool interfaces, and memory/knowledge-graph layers that turn discovered process intelligence into reliable, autonomous AI agents. Enrich enterprise knowledge graphs. Build entity resolution, intelligent clustering, and conformity-analysis capabilities that measure real-world execution against documented procedures and continuously learn from new data. Set the engineering bar. Establish standards for evaluation, observability, guardrails, and production reliability across the platform; mentor senior engineers and raise the technical ceiling of the team. Own delivery of the hardest problems. Personally prototype, productionize, and ship the most complex components — and be accountable for their performance in a regulated, enterprise-scale environment. Required Qualifications: 7+ years of Engineering experience, or equivalent demonstrated through one or a combination of the following: work experience, training, military experience, education. 3+ years of experience with clustering algorithms and unsupervised learning techniques for pattern discovery. 2+ years of experience working with knowledge graphs or graph-based ML techniques. 5+ years of experience with Python with experience in ML frameworks. Desired Qualifications: Experience with agentic data retrieval and analysis at the Enterprise Level. 3+ years of experience building entity resolution, deduplication, or record linkage systems at scale. Expertise in NLP techniques for semantic similarity, text clustering, and information extraction. Experience with graph databases. Background in process mining, conformance checking, or business process analysis. Experience with LLMs and embedding models for semantic similarity. Experience building ML pipelines using MLOps best practices. Experience with cloud computing platforms. Experience with distributed computing frameworks. Knowledge of containerization and orchestration technologies. Experience in financial services or operations domains. Excellent communication skills across technical and non-technical audiences. Advanced degree (M.S. or Ph.D.) in Computer Science, Machine Learning, or related field. Job Expectations and Core Values: Be Humble: You're smart yet always interested in learning from others. Work Transparently: You always deal in an honest, direct, and transparent way. Take Ownership: You embrace responsibility and find joy in having the answers. Learn More: You regularly self-educate and improve your skill set. Show Gratitude: You show appreciation and respect to those you work with. Pay Range Reflected is the base pay range offered for this position. Pay may vary depending on factors including but not limited to demonstrated examples of prior performance, skills, experience, or work location. Employees may also be eligible for incentive opportunities. $159,000.00 - $305,000.00 Benefits Wells Fargo provides eligible employees with a comprehensive set of benefits, many of which are listed below. Visit Benefits - Wells Fargo Jobs for an overview of the following benefit plans and programs offered to employees. Health benefits 401(k) Plan Paid time off Disability benefits Life insurance, critical illness insurance, and accident insurance Parental leave Critical caregiving leave Discounts and savings Commuter benefits Tuition reimbursement Scholarships for dependent children Adoption reimbursement Posting End Date: 30 Jul 2026 *Job posting may come down early due to volume of applicants. We Value Equal Opportunity Wells Fargo is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other legally protected characteristic. Employees support our focus on building strong customer relationships balanced with a strong risk mitigating and compliance-driven culture which firmly establishes those disciplines as critical to the success of our customers and company. They are accountable for execution of all applicable risk programs (Credit, Market, Financial Crimes, Operational, Regulatory Compliance), which includes effectively following and adhering to applicable Wells Fargo policies and procedures, appropriately fulfilling risk and compliance obligations, timely and effective escalation and remediation of issues, and making sound risk decisions. There is emphasis on proactive monitoring, governance, risk identification and escalation, as well as making sound risk decisions commensurate with the business unit’s risk appetite and all risk and compliance program requirements. Applicants with Disabilities To request a medical accommodation during the application or interview process, visit Disability Inclusion at Wells Fargo. Drug and Alcohol Policy Wells Fargo maintains a drug free workplace. Please see our Drug and Alcohol Policy to learn more. Wells Fargo Recruitment and Hiring Requirements: a. Third-Party recordings are prohibited unless authorized by Wells Fargo. b. Wells Fargo requires you to directly represent your own experiences during the recruiting and hiring process. #DNP-IND Wells Fargo & Company (NYSE: WFC) is a leading financial services company that has approximately $2.1 trillion in assets. We provide a diversified set of banking, investment and mortgage products and services, as well as consumer and commercial finance, through our four reportable operating segments: Consumer Banking and Lending, Commercial Banking, Corporate and Investment Banking, and Wealth & Investment Management. Wells Fargo ranked No. 33 on Fortune’s 2025 rankings of America’s largest corporations. News, insights, and perspectives from Wells Fargo are also available at Wells Fargo Stories. Additional information may be found at: wellsfargo.com wellsfargojobs.com For questions on how to search and apply, visit frequently asked questions.