Senior Staff Data Scientist

About Us:
DailyPay is transforming the way people get paid. As a worktech company and the industry’s leading on demand pay solution, DailyPay uses an award-winning technology platform to help America’s top employers build stronger relationships with their employees. This voluntary employee benefit enables workers everywhere to feel more motivated to work harder and stay longer on the job while supporting their financial well-being outside of the workplace.
DailyPay is headquartered in New York City, with operations throughout the United States as well as in Belfast. For more information, visit DailyPay's Press Center.

The Role:

DailyPay is seeking a Senior Staff Data Scientist to serve as the technical architect and strategic leader for our Personalization & AI Platform domains. This is one of the most technically senior and strategically influential roles in our data organization at the intersection of user experience, financial modeling, and AI infrastructure.

You will architect the systems that make every DailyPay product interaction smarter - from how we optimize financial decisions for workers, to how we personalize communications, to how we protect members from fraud. Equally important, you will lay the data, infrastructure, and process foundations that enable your team and the broader data science function to operate with speed, rigor, and scale.

This role requires someone who can move fluidly between writing production-grade model code, architecting scalable systems, partnering strategically with Product and Engineering leadership, and raising the technical bar of everyone around them.

How You Will Make an Impact:

Personalization Architecture & ML Platforms

• Architect and own end-to-end ML systems for personalizing the user experience, including on-demand pay balance optimization

• Design and deploy content personalization systems including email content ranking, in-app experience sequencing, and offer relevance

• Lead the transition from offline batch scoring to real-time, low-latency inference pipelines embedded directly in product backends

• Establish the data infrastructure foundation the data science team requires: feature stores, training pipelines, labeling systems, data contracts, and monitoring frameworks

• Define and enforce data quality standards; design automated validation and alerting pipelines that protect downstream model and business health, implement CI/CD best practices for ML

Technical Strategy & Cross-Domain Influence

• Partner directly with product and engineering leads to identify and quantify high-value AI opportunities and translate ambiguous business problems into multi-quarter technical roadmaps

• Communicate complex technical outcomes to executive stakeholders as concrete strategic recommendations, grounded in business impact and financial metrics

Mentorship & Organizational Excellence

• Serve as the primary technical leader for a growing data science team, setting the technical direction, establishing standards, and mentoring data scientists at all levels through design reviews, architectural guidance, and code reviews

• Cultivate a culture of rigor, curiosity, and operational excellence; establish documented, standardized patterns that make the entire team more effective

• Drive cross-functional alignment on DS/AI success metrics, ensuring model performance is durably connected to measurable business outcomes

• Establish team norms and a shared framework for effectively and responsibly applying modern AI; setting expectations around when and how to use AI tools, how to evaluate their outputs, and how to maintain rigor as capabilities evolve rapidly

What You Bring to The Team:

Experience

• Advanced degree in a quantitative discipline (e.g., computer science, machine learning, data science, engineering) with 10+ years of industry experience in data science and machine learning

• Demonstrated history of architecting and deploying production ML systems that drive significant, measurable business ROI, preferably across multiple product domains

• Experience in fintech, payments, consumer financial products, or similar regulated domains strongly preferred

Technical Mastery

• Model & Decision Development: Expert-level proficiency across modern AI, classical ML models, probabilistic methods, optimization techniques and causal inference; strong track record of translating business objectives into model strategy

• Model & Decision Production Systems: Deep expertise in end-to-