About OnePay
OnePay is a consumer financial services app with a simple mission: to help people achieve financial progress.
Tens of millions of Americans today are unbanked or underbanked. OnePay's vision is to create a single app for consumers to save, spend, borrow, and grow their money. Our products include:
- Checking and high-yield savings accounts
- Domestic and international peer-to-peer payments
- Credit Builder and credit score monitoring
- Digital wallet / contactless payment solutions
- Credit card program
- Buy-now-pay-later installment loans at Walmart
- Prepaid mobile service
We have the backing of Walmart and Ribbit Capital, are deeply embedded with the distribution of the world’s largest omnichannel retailer, and have an industry-leading multi-product value proposition.
The Role
As a Staff Engineer at OnePay, you’ll be a highly versatile technical leader and contributor, tackling complex engineering challenges across multiple domains. You'll collaborate broadly with engineering, product, and design, and play a pivotal role in shaping OnePay’s technical foundation and customer experience.
What You’ll Do
- Lead design and implementation of high-scale systems and features across product lines, serving as a trusted technical partner for multiple teams.
- Provide architectural guidance and hands-on contributions to ensure reliability, security, and performance across OnePay’s platform.
- Tackle complex, novel engineering problems in areas such as payments, servicing, and consumer-facing experiences.
- Mentor and level up other engineers, raising the technical bar across the org.
- Contribute to shaping the core infrastructure and developer experience that power our products
You Bring
- 10+ years of professional software engineering experience, including at least 3 years in a senior or staff-level capacity driving technical outcomes.
- Proven success building and scaling user-facing products or backend systems in fast-paced environments.
- Proven ability to quickly ramp up across different technical areas and lead complex initiatives, regardless of stack or domain.
- Strong ability to operate autonomously, navigate ambiguity, and quickly align stakeholders.
- Bonus: Experience working with AI-powered or user-facing AI products (e.g., personalization, conversational agents, recommendation systems).
- Drive and proactivity – everyone here is a builder and executor.
Tools We Use
We use the fp-ts library for functional programming with Node/TypeScript running on top of Kubernetes and AWS. You do not need experience with these specific tools, but you’ll ramp up more quickly if you are familiar with functional programming concepts.
What We Offer
- Competitive base salary, stock options, and health benefits from Day 1
- 401(k) plan with company match
- Remote-friendly (US), flexible time off (FTO), and opportunities for growth
- A high-growth, mission-driven, inclusive culture where your work has real impact
Standard Interview Process
- Initial Interview with Talent Partner
- Technical or Hiring Manager Interview
- Team Interview
- Executive Interview
- Offer!
Equal Employment Opportunity
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. Applicants in need of special assistance or accommodation during the interview process or in accessing our website may contact us at talent@onepay.com.