Senior Staff Data Scientist

Wonder Group, INC; United States; Hybrid; USD 216,000 - 250,000; Full time

Benefits offered by this job

Equity

401(k)

Medical/Dental/Vision

Job summary

Wonder Data Science is seeking a Senior Staff Data Scientist to shape strategic data science directions, mentor teams, and collaborate with engineering, product, and business leaders. You will design causal frameworks, run scalable experiments, and guide production-grade ML systems that impact marketplace and customer outcomes.

The role emphasizes trusted leadership, cross-functional collaboration, and building robust experimentation strategies in high-noise environments with hybrid office

Qualifications

• 8+ years of industry experience with MS or 6+ years with PhD in a quantitative field.
• Proven experience applying data science and ML to complex business problems.
• Deep expertise in causal inference and experimentation methodologies.

Responsibilities

• Serve as a technical thought leader in Data Science and mentoring.
• Lead exploration of interconnected marketplace systems and product impact.
• Partner with engineering to drive architecture and production ML services.

Skills

Data science

Machine learning

Causal inference

Python

SQL

Production ML

Education

MS in Statistics or related field

PhD in Statistics/Math/CS (advantage)

Tools

Python

SQL

Job description

About the Opportunity

At Wonder Data Science, our mission is to build data science and machine learning systems that improve how our marketplace operates, how customers experience the platform, and how the business makes high-quality decisions. As a Senior Staff Data Scientist, you will go beyond individual problem solving — you will help shape the strategic direction of applied data science, mentor senior and junior scientists, and collaborate closely with engineering, product, operations, and business leaders to move our ML and analytics capabilities toward scalable, production-grade systems. You will identify high-leverage opportunities across the business, including marketplace efficiency, customer experience, ETA accuracy, fulfillment reliability, pricing strategy, supply planning, demand forecasting, and operational performance. You will design statistically rigorous frameworks to understand causal impact, separate signal from noise, and guide business strategy through experimentation, measurement, and principled inference. You will help define how we structure trade-offs like customer experience vs. operational efficiency, speed vs. cost, prediction accuracy vs. business impact, short-term metric movement vs. long-term marketplace health, and automation vs. human judgment. You’ll prototype, experiment, influence architecture, and ensure we operationalize models and insights that actually move business metrics — not just analyses that look good offline.

The Impact You Will Make

Serve as a technical thought leader in Data Science — defining principles, frameworks, and best practices for how Wonder uses data, experimentation, and machine learning to improve customer, marketplace, and business outcomes. Mentor and coach a growing team of Data Scientists and contribute to career development and technical excellence across the group. Lead the exploration of interconnected marketplace systems, recognizing feedback loops between customer behavior, fulfillment reliability, ETA accuracy, pricing, supply planning, product experience, and business performance. Develop causal inference and experimentation frameworks that help Wonder understand which product, operational, and marketplace changes truly drive business impact. Partner with engineering to drive architecture decisions for shared data layers, feature pipelines, modeling APIs, experimentation infrastructure, and production ML services. Define and implement robust experimentation strategies for changes that move business metrics in high-noise environments. Champion business-impact-driven data science, integrating causal inference, experimentation, risk-aware modeling, and scalable production ML systems that learn and adapt.

What You Bring to the Table

8+ years of industry experience with MS or 6+ years with PhD in Statistics, Economics, Applied Mathematics, Computer Science, Data Science, Machine Learning, or a related quantitative field. Proven experience applying data science and machine learning to complex business problems, such as marketplace optimization, customer experience, forecasting, personalization, pricing, supply/demand balancing, operational policy changes, or product experimentation. Deep expertise in causal inference, experimentation, and statistical modeling, including methods such as A/B testing, difference-in-differences, regression discontinuity, instrumental variables, synthetic controls, uplift modeling, or causal impact analysis. Strong intuition for business and product trade-offs — customer experience vs. efficiency, ETA confidence vs. conversion risk, fulfillment reliability vs. cost, marketplace growth vs. quality, and short-term optimization vs. long-term health. Proficiency in Python, data analysis, visualization, and writing scalable, production-ready code using object-oriented design. Demonstrated ability to take data science, ML, or causal inference systems into production, partnering with engineering on architecture, deployment, and monitoring best practices. Fluency in SQL or similar tools for directly interrogating production-scale datasets. Experience mentoring and providing technical direction to other scientists, analysts, or engineers.

Got These? Even Better Experience

leading end-to-end design of data science, machine learning, measurement, or experimentation frameworks within marketplace, consumer product, fulfillment, logistics, pricing, forecasting, or operations systems. Experience designing causal measurement strategies for complex systems where product, marketplace, and operational decisions interact across multiple layers. Background in causal inference, econometrics, Bayesian modeling, experimental design, or observational measurement in high-noise environments. Experience with applied experimentation frameworks, including A/B testing, power analysis, heterogeneous treatment effects, guardrail metrics, interference effects, and long-term impact measurement. Experience building or influencing production ML systems that combine predictive modeling, causal measurement, experimentation, and business rules Influence across disciplines — able to align product, engineering, operations, business, and data science around a cohesive ML, experimentation, and measurement strategy. Experience defining strategy and technical roadmaps for data science, machine learning, experimentation, or causal inference platforms.

Our hybrid model requires 3 days a week in the office. That said, many team members choose to come in more often to take advantage of in-person collaboration and connection. You're welcome—and encouraged—to be in the office up to 5 days a week if it works for you. #LI-Hybrid

• New York: $240,000 - $249,500 per year.
• Illinois: $216,000 - $224,500 per year.
• Wonder uses geographic-specific salary structures, which means the salary offered may vary depending on where the job is located. The final salary offer will take into account various factors, such as the candidate's skills, education, training, credentials, and experience.

Benefits

• the benefits applicable to this role include a competitive compensation package with equity and a 401(k).
• We also offer a choice of medical, dental, and vision plans, company paid short and long term disability coverage, paid time off including flexible time off for exempt employees, paid vacation for non-exempt employees, and paid sick leave in compliance with applicable law in addition to paid parental leave, discounted meals and exclusive perks across the Wonder family of brands.
• Eligibility, effective dates, and available plan options vary by employment classification and location.

To learn more about benefits for this role, visit our Careers page here.

A Final Note

At Wonder, we build the best teams by hiring with an objective lens — evaluating people for their potential while championing diversity, equity, and inclusion. We do not discriminate based on race, color, religion, gender identity or expression, sexual orientation, national origin, age, military service eligibility, veteran status, marital status, disability, or any other protected class. As part of our commitment to fair and compliant hiring practices, Wonder participates in the federal government's E-Verify program to confirm employment eligibility. If you need an accommodation during the interview process, please let your recruiter know.

Join Our Team At Grubhub

We champion restaurants from coast to coast. Restaurants sit at the heart of communities. It’s our mission to strengthen their roots, deepen their connections, and increase the positive impact they have on people and society. Grubhub, part of Wonder, delivers the best local, authentic cuisine right to diners’ doors—and new customers and billions in revenue to local businesses. Featuring over hundreds of thousands of merchants in over 4,000 cities nationwide, our innovative technology, user-friendly platforms, and streamlined delivery capabilities have made us an industry leader in the world of online food ordering. Since we opened our doors in 2004, Grubhub has been opening doors all across the country. Bakery doors in Hyde Park, jibarito joint doors in Queens, and doors of opportunity all across the country. Join our team and help us open more.