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Posted Apr 10, 2026

**Experienced Full Stack Data Scientist – Web & Cloud Application Development**

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At arenaflex, we're on a mission to revolutionize the way we interact with technology, and we're looking for a talented and motivated Data Scientist to join our team. As an early member of our Information Researcher group in the Applied Product group, you will play a crucial role in shaping the data-driven product development culture for either consumer products or developer platforms at arenaflex. You should expect to define our north-star metrics, design our first A/B tests, and establish source-of-truth dashboards that the entire organization can use to answer their own product questions. **Job Summary:** We're seeking an experienced Full Stack Data Scientist to join our team at arenaflex. As a key member of our product development group, you will be responsible for defining and deciphering A/B tests, establishing an data-driven product development culture, and creating and maintaining dashboards, reports, and other tools to empower the team and organization to respond to product data questions in a self-serve way. **Responsibilities:** * Collaborate with the product development team as a trusted partner, uncovering better ways to improve the product and drive growth. * Define and decipher A/B tests that help answer critical questions about the impact of model and UX changes to our product. * Establish a data-driven product development culture by driving the definition, tracking, and operationalizing of feature, product, and organization-level metrics. * Create and maintain dashboards, reports, and other tools to empower the team and organization to respond to product data questions in a self-serve way. * Develop and maintain a deep understanding of our product and its users, using data to inform product decisions and drive growth. **Requirements:** * 4+ years of experience in a quantitative role exploring complex and uncertain conditions, preferably as an early data researcher or product expert at a hyper-growth product organization or research organization. * Proven ability to design, execute, and operationalize new feature and product-level metrics from scratch. * Excellent communication skills with demonstrated ability to communicate with product managers, engineers, and leaders alike. * Strong programming foundation, with ability to run simulations and model variations. * Experience validating quantitative insights with qualitative methods (e.g. studies, UXR). **Nice to Have:** * Experience working with NLP, large language models, or generative AI. * Strong experience with cloud-based data platforms and tools. * Experience working with agile development methodologies and version control systems. **What We Offer:** * Competitive salary and benefits package. * Comprehensive health insurance for you and your loved ones. * Emotional well-being and health support. * 401(k) plan with 4% matching. * Unlimited vacation time and 18+ company events per year. * Paid parental leave (20 weeks) and family-planning support. **About arenaflex:** arenaflex is an artificial intelligence research and organization committed to ensuring that universally beneficial artificial intelligence benefits all of humanity. We push the limits of the capabilities of artificial intelligence systems and strive to bring them to the world through our products safely. Artificial intelligence is an incredibly useful resource that should be developed with safety and human needs at its core, and to achieve our mission, we must encompass and value the diverse perspectives, voices, and experiences that form the full range of humanity. **Why Join arenaflex?** At arenaflex, we believe that artificial intelligence can potentially help people solve massive global challenges, and we want the potential benefit of AI to be widely shared. Join us in shaping the future of technology and making a meaningful impact on the world. **How to Apply:** If you believe you have what it takes, submit your application without delay. We're excited to hear from talented candidates like you.