Principal Applied Scientist, Humorphic Labs

AWS Applied AI Solutions (AAIS) is building toward a future where every business innovates with Amazon AI teammates. To get there, we build AI solutions that improve human capabilities and transform entire Basic qualifications: - PhD in computer science, machine learning, artificial intelligence, or a related technical field, or a Master's degree with equivalent applied science experience, or an equivalent body of work - Experience developing agentic AI systems or large language model applications through an end-to-end product cycle - Experience designing evaluation for systems that have no standard benchmark - Experience writing substantial research or production code in Python or a comparable language - Experience leading complex scientific work across engineering and product partners - Evidence of independent decisions in ambiguous, consequential technical environments Preferred: - Experience with post-training methods, including supervised fine-tuning and reinforcement learning - Experience with multimodal models across language, speech, and vision - Experience with speech systems or real-time conversational systems - Experience measuring collaboration quality, trust, adaptation, or human contribution in AI systems - Experience building agent systems that use memory, tools, planning, and recovery mechanisms - Experience founding a scientific program, or joining an early team before that team had established its methods - A record of scientific influence through publications, patents, open-source work, or deployed systems - Experience mentoring senior scientists and engineers without moving away from hands-on work - Experience partnering with design, product, and behavioral research from problem definition through product validation - Experience taking a proven method into a product team and staying until that team adopted it Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status. Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner. The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits . USA, TX, Austin - 198,900.00 - 269,000.00 USD annually