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Research In Jobs in Missouri (NOW HIRING)

WEX Inc.

Principal AI/ML Research Engineer

California, MO · On-site

$180 - $280/hr

You will closely partner with leaders in Data Engineering, Product, Security, Risk & Compliance ... This Principal AI/ML Research Engineer will hold technical ownership of WEX's AI research strategy ...

Washington University of St. Louis

$41K - $75K/yr

The successful candidate will be involved in projects that handle big-data research, bundling genetics, multi-omics, biomarker, clinical, and histopathological data, to better understand Alzheimer ...

Utaustin

$18/hr

Purpose The undergraduate research assistant (URA) will support ongoing research in data acquisition for the TRIGA reactor. The URA will develop, build, and test, and install equipment for the ...

Washington University of St. Louis

$16.54 - $22.35/hr

Assists with laboratory duties in a research setting; performs routine tests with direction from the supervisor, manager or higher-level technician. Primary Duties & Responsibilities: * Assists the ...

University of Rochester

$61K - $85K/yr

Embedded in that ideal are the values we share: equity, leadership, integrity, openness, respect ... Oversees human subject research activities for single or multiple sites. Develops, implements, and ...

Washington University of St. Louis

Our research integrates systems neuroscience, genetics, pharmacology, and computational approaches ... In vivo two-photon imaging of identified neuronal populations in awake mice, auditory behavioral ...

Washington University of St. Louis

$18 - $24.75/hr

... Research Assistant ... Established in 2025, the lab conducts preclinical (basic science and translational) studies into ...

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Research In information

What is the difference between Research In vs Research Analyst?

AspectResearch InResearch Analyst
Required CredentialsTypically requires a degree in research, social sciences, or related fieldsRequires a degree in research, statistics, or related disciplines
Work EnvironmentOften in research institutions, labs, or corporate R&D departmentsUsually in corporate, market research firms, or financial institutions
Employer & Industry UsageUsed in research-focused organizations across various industriesCommon in finance, marketing, and consulting sectors
Search & Comparison IntentPeople compare roles related to research activities in organizationsIndividuals looking into research roles with analytical focus

Research In and Research Analyst roles both involve research activities but differ mainly in industry focus and work environment. Research In typically refers to research positions within organizations or labs, while Research Analysts are more common in corporate and financial sectors. Understanding these differences helps job seekers find roles aligned with their skills and career goals.

What cities in Missouri are hiring for Research In jobs?

Cities in Missouri with the most Research In job openings:

Research In jobs near you

Principal AI/ML Research Engineer

WEX Inc.

California, MO • On-site

$180 - $280/hr

Other

Posted 14 days ago

WEX Inc. rating

7.3

Company rating: 7.3 out of 10

Based on 21 frontline employees who took The Breakroom Quiz

13th of 21 rated payment service providers

Job description

Company Overview

WEX is an innovative global commerce platform and payments technology company looking to forge the way in a rapidly changing environment, to simplify the business of doing business for customers, freeing them to spend more time, with less worry, on the things they love and care about. We are journeying to build a consistent world‑class user experience across our products and services and leverage customer‑focused innovations across all our strategic initiatives, including big data, AI, and Risk.

Position Summary

As a Principal AI/ML Research Engineer, this technical leader will drive applied AI research, novel model development, and algorithmic innovation across generative AI (GenAI), deep learning, and traditional machine learning. This technologist will lead the discovery, design, and prototyping of state‑of‑the‑art architectures to solve complex, high‑scale commerce and fintech challenges. For example, this work may include pioneering Transformer‑based Payment Foundation Models (PFMs)—adapting self‑attention mechanisms to large‑scale tabular transaction data, user behavioral sequences, and multi‑modal financial streams to produce universal embeddings that power a wide array of downstream commerce applications.

This role bridges state‑of‑the‑art academic/industry research with real‑world production impact. You will closely partner with leaders in Data Engineering, Product, Security, Risk & Compliance, and Line of Business (LOB) technical teams to identify high‑value opportunities, benchmark novel architectures (e.g., Tabular Transformers, LLMs, RAG, Reinforcement Learning), and transition experimental models into viable production pipelines. This Principal AI/ML Research Engineer will hold technical ownership of WEX’s AI research strategy, model optimization, algorithmic rigor, and AI experimentation standards. The vision behind WEX’s AI research is to transform multi‑modal commerce and payment data into intelligent, predictive models that drive competitive advantage. This role reports to the VP of Data Lake and AI Engineering located in the San Jose, CA Bay Area, but can be located in Seattle, WA; Portland, ME; Boston, MA; or Chicago, IL.

Responsibilities
  • Self‑Supervised Pre‑Training & Fine‑Tuning: Design self‑supervised pre‑training strategies (e.g., masked transaction prediction) on raw payment histories to generate multi‑purpose user/entity embeddings, enabling efficient fine‑tuning for fraud detection, credit risk, dispute prediction, and authorization optimization.
  • Payment Foundation Models & Transformers: Drive applied research in adapting Transformer architectures (encoder/decoder, self‑attention mechanisms, and Tabular Transformers) to build enterprise‑grade Payment Foundation Models (PFMs) tailored to transaction streams.
  • Research & Algorithmic Innovation: Lead applied research in AI/ML to solve high‑impact business problems in fraud detection, risk scoring, predictive commerce, customer engagement, and automated decision‑making.
  • Generative AI & Advanced Modeling: Spearhead research and prototyping in modern AI
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