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Staff Data Scientist at Kard. Location Information: Remote. . Kard is transforming customer loyalty with our rewards-as-a-service API platform. We empower our partners, from neobanks to financial institutions and beyond, to offer tailored rewards that celebrate customers' daily transactions. Backed by $30M from industry-leading investors and seasoned experts, we are reshaping the future of customer engagement.. About the Role. . As a Staff Data Scientist at Kard, you’ll lead development of advanced personalization, optimization, and measurement systems at the heart of our platform. You will apply deep expertise in statistical modeling, experimentation, and machine learning to improve loyalty campaign performance and user experience. This highly impactful, cross-functional role spans experimentation frameworks, causal inference, and applied ML—contributing to both platform capabilities and strategic decisions.. . Responsibilities. . . Design and lead advanced personalization and optimization models to improve campaign targeting, offer performance, and user outcomes.. . Build and scale experimentation frameworks for A/B tests, lift studies, and causal inference . pipelines. .. . Develop attribution and measurement methodologies to help partners understand program impact.. . Translate statistical and modeling results into actionable, business-relevant insights for Product, Engineering, Sales, and partners.. . Collaborate with ML Engineers to operationalize models in production environments.. . Mentor other data professionals and provide thought leadership on statistical best practices and model design.. . Drive complex, high-impact projects from ideation to delivery, influencing product and platform strategy.. . Advance Kard’s measurement and experimentation infrastructure to deliver robust, reproducible insights.. . . Desired Skills. . . Experience working in data science, focused on experimentation, personalization, or performance measurement.. . Significant experience with statistical hypothesis testing and causal inference on large datasets—ideally in digital ads or similar performance-driven domains (fintech, healthcare, economics, finance, B2B SaaS).. . Expertise in both frequentist and Bayesian methods, with strong theoretical foundation and ability to prototype real-world solutions.. . Proficiency in machine learning techniques (scikit-learn, XGBoost, . PyTorch. , etc.) for both inference and model development.. . Strong SQL and Python skills, with experience working at scale on complex datasets.. . Proven track record of translating statistical and ML insights into business or product impact.. . Experience collaborating with product and engineering teams to build data-driven features; production experience is a plus.. . Excellent communication skills and ability to simplify complex topics for diverse audiences.. . Experience mentoring and guiding data science peers.. . Bachelor’s or Master’s in a quantitative field (Statistics, Computer Science, Mathematics, Economics); Ph.D. a plus but not required.. . Inclusive, collaborative, humble, and impact-oriented mindset.. . U.S. core business hours availability and willingness to travel for company meetings.. . Remote - USA Pay Range$190,000—$210,000 USD. Why Join:. . Kard recognizes the unique value each of us brings to our collective success. As part of our remote-first team, you'll have the autonomy to influence our trajectory, actively contributing to the growth of our business and the evolution of our company culture. By embodying our core values of Initiative, Openness, and Humility, you will not only witness but directly foster an inclusive and dynamic work environment, from the executive level down.. Our competitive benefit plan includes:. . Flexible PTO, with a minimum requirement to take one day off a quarter, ten days a year, promoting mental well-being. . Observance of 11 Federal Holidays, plus an additional day each for Black Friday and Christmas Eve (US employees only). . Health, Dental and Vision Insurance. . 401k with employer match (US employees only). . Coworking space and WFH setup reimbursement. . Company Offsites two times per year for planning, team-building, and networking. . Kard is an equal opportunity employer and we actively encourage applicants of all genders, backgrounds, and experiences to apply. We believe that diverse perspectives enrich our workplace and drive our success..