Senior AI/ML Engineer — Customer Data Platform

Role Description

Senior AI/ML Engineer — Customer Data Platform

Lead I - Software Engineering

Who We Are

Born digital, UST transforms lives through the power of technology. We walk alongside our clients and partners, embedding innovation and agility into everything they do. We help them create transformative experiences and human-centered solutions for a better world.

UST is a mission-driven group of 29,000 practical problem solvers and creative thinkers in more than 30 countries. Our entrepreneurial teams are empowered to innovate, act nimbly, and create a lasting and sustainable impact for our clients, their customers, and the communities in which we live.

With us, you’ll create a boundless impact that transforms your career—and the lives of people across the world.

Visit us at UST.com.

You Are

We are seeking a Senior AI/ML Engineer to lead the design and development of the advanced AI systems that make our Customer Data Platform (CDP) the authoritative source of truth for customer data — covering the entire US adult population.

The Opportunity

• Design and lead end-to-end identity resolution architecture, combining probabilistic models, ML, and embedding-based techniques to build the authoritative customer identity graph
• Build and optimize large-scale entity matching systems across billions of records and multiple data domains — ensuring every US adult is accurately represented in CDP
• Architect advanced candidate generation and blocking strategies (LSH, phonetic encoding, semantic similarity) that balance precision with computational feasibility at population scale
• Design high-precision matching pipelines using ensemble approaches (rules ML LLM-based validation) to maximize accuracy of golden customer profiles
• Develop scalable clustering and graph-based approaches for unified customer identity resolution with clear confidence scoring and auditability
• Lead implementation of embedding pipelines and similarity search systems using transformer models for semantic-level identity matching
  
  

This position description identifies the responsibilities and tasks typically associated with the performance of the position. Other relevant essential functions may be required.

What You Need

• Bachelor's or Master's degree in Computer Science, Data Science, or related field
• 6 years of experience in ML/AI engineering
• Proven experience building production-grade entity resolution or identity graph systems at scale
• Experience designing LLM-based applications in enterprise environments with high accuracy and trust requirements
• Technical Skills:
• Advanced programming: Python
• Deep expertise in ML algorithms for similarity, classification, and clustering — particularly in identity resolution contexts
• Strong experience with transformer models, embeddings, and semantic search at population scale
• Hands-on experience with LLM APIs and orchestration frameworks
• Strong SQL and experience with distributed data processing (Spark, Dask)
• Experience with vector databases and ANN search systems (FAISS, Pinecone, etc.)
• Expertise in ML lifecycle management (MLflow or equivalent)
• Understanding of data governance, privacy, and security requirements for customer identity data
• Knowledge, Skills, and Abilities
• Strong system design and architectural thinking for AI/ML systems at population scale
• Ability to balance precision, recall, and scalability in identity resolution systems — understanding that accuracy directly impacts CDP's authority as the source of truth
• Strong understanding of data semantics and customer domain modeling across diverse data sources
• Leadership in driving AI engineering best practices, standards, and quality benchmarks
• Ability to collaborate across data engineering, product, security, and business teams to deliver trusted customer intelligence
• Licenses and Certifications
  
  

Compensation can differ depending on factors including but not limited to the specific office location, role, skill set, education, and level of experience. UST provides a reasonable range of compensation for roles that may be hired in various U.S. markets as set forth below.

Role Location: Georgia

Compensation Range: $75,000-$113,000

Benefits

Full-time, regular employees accrue a minimum of 10 days of paid vacation per year, receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year), 10 paid holidays, and are eligible for paid bereavement leave and jury duty. They are eligible to participate in the Company’s 401(k) Retirement Plan with employer matching. They and their dependents residing in the US are eligible for medical, dental, and vision insurance, as well as the following Company-paid Employee Only benefits: basic life insurance, accidental death and disability insurance, and short- and long-term disability benefits. Regular employees may purchase additional voluntary short-term disability benefits, and participate in a Health Savings Account (HSA) as well as a Flexible Spending Account (FSA) for healthcare, dependent child care, and/or commuting expenses as allowable under IRS guidelines. Benefits offerings vary in Puerto Rico.

Part-time employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year) and are eligible to participate in the Company’s 401(k) Retirement Plan with employer matching.

Full-time temporary employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year) and are eligible to participate in the Company’s 401(k) program with employer matching. They and their dependents residing in the US are eligible for medical, dental, and vision insurance.

Part-time temporary employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year).

All US employees who work in a state or locality with more generous paid sick leave benefits than specified here will receive the benefit of those sick leave laws.

What We Believe

We proudly embrace the values that have shaped UST since day one. We build our culture of Humility, Humanity, and Integrity. These values inspire us to nurture a people-first, human centric culture that fosters diversity, prioritizes sustainable solutions, and keeps our people and clients at the forefront of all decisions.

Humility

We will listen, learn, be empathetic and help selflessly in our interactions with everyone.

Humanity

Through business, we will better the lives of those less fortunate than ourselves.

Integrity

We honor our commitments and act with responsibility in all our relationships.

Equal Employment Opportunity Statement

UST 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 applicable characteristics protected by law. We will consider qualified applicants with arrest or conviction records in accordance with state and local laws and “fair chance” ordinances.

UST reserves the right to periodically redefine your roles and responsibilities based on the requirements of the organization and/or your performance.

#UST

#CB

Skills

agentic ai,api integration,generative ai,machine learning,