Principal AI Scientist

Principal AI Scientist Job Type: Full-time Kaysville, UT and Remote (United States Only) Who We Are: At Bark, we’re on a mission to keep children safer online – both at home and at school. We use cutting-edge machine-learning technology to detect issues like cyberbullying, sexting, signs of depression, suicidal ideation, and more. We also offer internet filtering and screen time limits. Learn more at www.bark.us. Job Responsibilities: The Principal AI Scientist is responsible for shaping Bark’s AI strategy and delivering high-impact, production-ready AI systems. Reporting to the CTO, this role provides technical leadership across Product & Engineering, translating advanced AI capabilities into reliable, responsible products. What You’ll Do • Set technical direction for Bark’s AI systems in partnership with the CTO. • Drive improvements in model accuracy, robustness, explainability, and latency in real-world conditions. • Translate research and experimentation into durable product capabilities that integrate cleanly with Bark’s engineering stack. • Establish best practices for model lifecycle management, including training, evaluation, deployment, monitoring, and iteration. • Serve as a technical authority for AI/ML at Bark, influencing architecture, modeling approaches, evaluation standards, and system design across teams. • Influence product and technical decisions across teams through expertise. • Champion responsible AI practices, including fairness, privacy, transparency, and harm minimization. What We’re Looking For • 10+ years of experience in machine learning, applied AI, or data science, with a strong track record of shipping AI-powered products. • Familiarity with modern engineering environments, and AI tooling and infrastructure (e.g., PyTorch, TensorFlow, cloud-based ML platforms, MLOps). • Deep expertise in one or more relevant areas such as machine learning, generative AI, etc. Strong experience building and maintaining systems, including data pipelines, training workflows, deployment, and monitoring. • Demonstrated ability to drive technical direction across multiple teams and initiatives. • Excellent communication skills and the ability to operate effectively in a mission-driven, cross-functional environment. Benefits: • Competitive compensation commensurate with experience • Equity stake in Bark • Paid time off • Paid sick time • Health Benefits: • Medical • Dental • Vision • Healthcare Support • On-Demand Primary Care • Online Mental Health Therapy • Flexible Spending Account (FSA) • Supplemental Life Insurance • 401(k) • Voluntary Long-term and Short-term Disability Insurance We recognize people come with a wealth of experience and talent beyond just the technical requirements of a job. If your experience is close to what you see listed here, please consider applying. Diversity of experience and skills combined with passion is a key to innovation and excellence. We encourage people from all backgrounds to apply to our positions. Please let us know if you require accommodations during the interview process. Bark is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Apply tot his job