OnePay is the consumer fintech trusted by millions of Americans to make money better.
Our financial system is broken. High fees, low rates, and too few ways to actually grow your money. We’re fixing it. And we’re moving fast.
We’re an all-in-one financial services platform that brings together banking, high-yield savings, credit cards, point-of-sale lending, investing, and crypto in one place. We also partner with employers, HCM providers, gig platforms, and others to deliver embedded financial services to millions of employees and frontline workers.
We’re backed by Walmart, the world’s largest retailer, and Ribbit Capital, one of fintech’s most respected investors, giving us rare scale, distribution, and the opportunity to build something truly category-defining.
But what really sets OnePay apart is how we move. Our customers don’t have time to wait… and neither do we. This place moves fast, and we’re looking for people who are:
Ready to run
Hungry and driven by urgency
Exceptional at what they do, with low ego
Comfortable operating in motion
As an AI Research Intern, your mandate is to research agentic AI use cases for customer facing product features and develop a working prototype. This role will impact OnePay’s vision by providing remarkable customer experience, driving positive business outcomes and improving operational efficiency. You will work closely with the product, engineering and applied science team(s) working across all business units. This role reports to the Head of AI/ML.
This role is responsible for:
Opportunity to work in an extremely fast paced growing company
Design, build and productionize cutting-edge models.
Partner with Product, Engineering and Analytics teams to ensure we are providing a remarkable customer experience.
Driving significant impact on the company’s bottom line.
Pursuing a Bachelor’s Degree: You’re a current student expected to graduate in the Fall 2027/Spring of 2028 majoring in computer science, data science, operations research, applied math, stats, physics, or related technical field.
Prior Experience: You've completed at least one previous software engineering internship, or have built substantial personal or academic projects you're excited to talk through.
Availability: This is a full-time, 8-week program running June 21 - August 13, 2027. You are available to work in our New York City office at least 3-4 days a week throughout.
Proactive & Collaborative Attitude: You have an act-like-an-owner mentality, thrive in a fast-moving environment, and enjoy working with others to achieve collective goals.
Critical Thinking & Problem-Solving Skills: You enjoy tackling complex challenges, analyzing problems, and developing solutions. Clear communication of ideas is one of your strengths.
Organized & Detail-Oriented: You’re a keen listener with strong organizational skills, capable of managing multiple tasks efficiently.
Excited to Learn & Grow: You are passionate about being part of a rapidly growing start-up and look forward to expanding your skills in a real-world setting.
Completed a course or worked on a project related to Large Language Models (LLMs) or Generative AI.
Early access to a high potential, high growth fintech
Hands on experience building product ready to ship
Beautiful NYC SoHo Office
Professional development and team social outings
Program runs June 21 - August 13, 2027 (8 weeks, full-time, in our NYC office)
We review applications and conduct interviews on a rolling basis as they come in
No offer decisions will be made until the application window closes – all candidates are evaluated together before final decisions go out
We are targeting a finalized cohort by December 1, 2026
If there are intern spots still available, we may reopen applications in Spring 2027
Our process varies by role. Most candidates go through:
AI-assisted initial screen
Interview with Talent Partner
Technical or Hiring Manager Interview
Team Interview
Executive Interview
Offer!
To build technology and products that are used and loved by people and solve real-world problems, we need to build a team with many different perspectives and experiences. We are an equal opportunity employer. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We encourage candidates from all backgrounds to apply. Applicants in need of special assistance or accommodation during the interview process or in accessing our website may contact us at [email protected].
Skills Required
- Currently pursuing a bachelor's degree in computer science, data science, operations research, applied mathematics, statistics, physics, or a related technical field
- Expected graduation in Fall 2027 or Spring 2028
- At least one prior software engineering internship or substantial personal or academic projects
- Available for a full-time, eight-week program from June 21 through August 13, 2027
- Available to work in the New York City office at least three to four days per week throughout the program
- Coursework or project experience related to large language models or generative AI
- Strong critical thinking, problem-solving, communication, collaboration, organizational, and detail-oriented skills
OnePay Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about OnePay and has not been reviewed or approved by OnePay.
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Fair & Transparent Compensation — Pay is considered competitive and has shown recent improvement, aligning with market-level ranges cited for several roles. Feedback suggests overall pay is solid relative to comparable fintech employers.
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Healthcare Strength — Health benefits from Day 1 and descriptions of “Cadillac” plans indicate strong medical coverage. Feedback suggests immediate eligibility and plan quality form a robust healthcare baseline.
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Leave & Time Off Breadth — Flexible PTO/sick time and generous parental leave are highlighted as part of the core package. Feedback suggests time-off breadth supports work-life balance in a remote-first context.
OnePay Insights
What We Do
We're on a mission to help people achieve financial progress. We're seeking team members who are hungry, humble, and honest to help us build simple solutions for people to save, spend, and grow their money — all in one place. Here you’ll have the opportunity to challenge the status quo with proven leaders in fintech, banking, consumer products, and tech. One is backed by Walmart and Ribbit Capital. Learn more about us at www.one.app. Follow for the latest news and updates on employee life. One card is issued by Coastal Community Bank pursuant to licensing by Mastercard® International.









