Amazon

Principal Applied Scientist, Prime Video Personalization & Discovery

Amazon$228K — $309K *
Consumer Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • PhD or Master's with 10+ years of applied experience in ML, computer science, statistics, or related field
  • 8+ years designing, building, and deploying ML models at scale
  • Proven leadership in driving cross-functional ML/AI initiatives from ideation to production
  • Expertise in Python, Java, or C+ along with ML frameworks (e.g. TensorFlow, PyTorch)
  • Deep knowledge in recommendation systems, search relevance, or large-scale personalization systems

Responsibilities

  • Invent, prototype, and productionize large-scale AI solutions for personalization and discovery
  • Provide technical leadership while collaborating with engineers, product managers, and senior stakeholders
  • Design and lead high-impact A/B tests and data analyses to guide product direction
  • Drive technical excellence through mentorship and design reviews
  • Stay updated on industry trends to evolve long-term strategy and architecture
  • Publish impactful research in top-tier conferences and journals

Benefits

  • Comprehensive health insurance (medical, dental, vision)
  • 401(k) matching
  • Paid time off and parental leave
  • Flexible Spending Accounts and EAP services
  • Adoption and Surrogacy Reimbursement coverage
Full Job Description
As a Principal Applied Scientist at Prime Video, you will be a technical and strategic leader responsible for inventing, developing, and deploying groundbreaking AI solutions that power personalized, relevant, and delightful experiences for millions of global customers. You will help shape the vision and direction of key ML systems that support Prime Video's mission to deliver AI-powered customer experiences.

This role demands a unique blend of deep technical expertise in machine learning and recommendation systems, industry leadership, and strong collaboration skills. You will guide the development of high-impact systems end-to-end - leading innovation from foundational research through production deployment - while mentoring scientists and influencing product and engineering roadmaps.

We are looking for a thought leader who brings a strong track record of delivering ML innovations at scale, along with the curiosity and drive to push boundaries. This is a rare opportunity to drive meaningful impact at one of the largest streaming services in the world.

Key job responsibilities

- Invent, prototype, and productionize large-scale AI solutions across Prime Video's personalization and discovery ecosystem using deep learning, generative AI, reinforcement learning, and optimization techniques;

- Provide technical leadership and influence product vision by collaborating closely with engineers, product managers, and senior stakeholders;

- Design and lead high-impact A/B tests and data analyses to validate hypotheses and guide product direction;

- Drive technical bar-raising across science and engineering teams through mentorship, design reviews, and collaboration;

- Stay ahead of industry trends and emerging research; leverage them to evolve long-term strategy and architecture;

- Publish impactful research internally and externally (e.g. top-tier conferences and journals).

About the team

Prime Video Personalization and Discovery (PVPD) is dedicated to creating a highly personalized content discovery experience that not only delights our customers but also drives both short-and long-term business goals. Our scope includes personalized recommendations, search, marketing, and the advanced machine learning technology and infrastructure that underpins these experiences. Our mission is to automate and enhance customer engagement through personalization, using ML and Generative AI.

BASIC QUALIFICATIONS

- PhD (or Master's with 10+ years of applied experience) in machine learning, computer science, statistics, or a related field

- 8+ years experience designing, building, and deploying ML models for real-world business applications at scale

- Proven leadership in driving cross-functional ML/AI initiatives from ideation through production

- in Python, Java, or C++, and experience with ML frameworks (e.g., TensorFlow, PyTorch)

- Deep expertise in recommendation systems, search relevance, or large-scale personalization systems

PREFERRED QUALIFICATIONS

- Strong publication record in top-tier conferences (e.g. NeurIPS, ICML, KDD, RecSys, SIGIR)

- Experience with large-scale distributed systems (e.g. Hadoop, Spark)

- Demonstrated ability to influence technical roadmaps and mentor other scientists and engineers

- Experience defining and delivering strategic AI vision for consumer-facing products

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, CA, Sunnyvale - 228,700.00 - 309,400.00 USD annually

About Amazon

Audible is a provider of spoken audio information and entertainment , on the Internet. They provide premium spoken audio content, such as audio versions of books and newspapers and radio programs, that is delivered over the Internet and played back on personal computers and hand-held electronic devices. The Audible service allows consumers to purchase and download their content from their Website, store it in digital files and play it back on personal computers and electronic devices. More than 15,000 hours of audio content are available on their Web site, including audio versions of books, periodicals and radio programs. Several manufacturers have agreed to support and promote the playback of their content on their hand-held audio-enabled electronic devices.

Amazon Careers

Joining Amazon presents an unparalleled opportunity to become part of a vibrant team pushing the boundaries of innovation and growth in the global marketplace. As a leader in e-commerce, technology, and logistics, Amazon offers a variety of job opportunities that cater to a range of skills and professional interests. Work You’ll Do At Amazon, every day is an opportunity to collaborate with the brightest minds in technology and business to redefine what’s possible. Whether you’re interested in software development, marketing, human resources, or customer service, Amazon has a position waiting for you. Transform the way the world shops and innovates with our diverse and inclusive team. Amazon is not just a company; it’s a community where you can drive real change and contribute to projects impacting millions globally. Lead with Innovation and Leadership Amazon is the perfect place to enhance your leadership and innovation skills. Our culture encourages pushing the envelope and imagining the unimaginable. Here, you will lead projects that challenge the status quo and define new industry standards. Work with a team that values diversity and is committed to creating an inclusive environment. Our leadership is focused on harnessing the collective power of unique perspectives to foster growth and innovation. Explore Amazon’s Employment Benefits Amazon’s commitment to its employees extends beyond just career growth. We offer competitive benefits, including health care, parental leave, and diversity training, ensuring that our team not only excels professionally but also enjoys well-being and security. Internship and Networking Opportunities Start your career with an Amazon internship and gain hands-on experience that matters. Our internships provide a gateway to full-time employment and an opportunity to network with professionals across various sectors of the company. Future-Proof Your Career With Amazon, your career path is filled with numerous opportunities for advancement. Our learning and development programs are designed to nurture your professional growth and keep you at the forefront of industry trends. Stay Connected Join Our Team Discover the job opportunities at Amazon that match your skills and interests. We are constantly on the lookout for passionate, curious, and innovative team players ready to make a difference. Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. Job Alert Emails Customize your subscription to receive job alerts, the latest news, and insider tips tailored to your preferences. Explore the exciting and rewarding career opportunities that await at Amazon. Amazon is more than just a company—it’s a platform for building a promising future. Whether you’re starting or looking to advance your career, Amazon offers the resources, support, and network you need to succeed. Join us, and be a part of our continuing mission to be Earth's most customer-centric company.
Learn more about Amazon
Size
1,608 employees
Market Cap
$832.6 billion
Industry
Net Income
$21.3 billion
Founded
1994
5 Year Trend
+28.1%
Revenue
$386 billion
NASDAQ

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