Applied Scientist

Amazon Science; San Francisco (CA); On-site; USD 172,000 - 222,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

Disability Insurance

401(k)

Maternity Leave

Parental Leave

Flexible PTO

Employee Discount

Job summary

Twitch is seeking an Applied Scientist to tackle open-ended problems in content contextual signals. You will lead projects across Ads, Brand Safety, Creator Sponsorship and Content Understanding using a broad ML toolbox.

Located in San Francisco, you’ll work with scientists, engineers, and product stakeholders to productionize models that empower creators and viewers. You will report to the Senior Data Science Manager for GTM.

Qualifications

• Experience collaborating with technical and non-technical stakeholders to deliver results.
• Experience with LLM model evaluations.
• Experience owning projects that involve multiple scientists and engineers.
• Proficiency with Python and SQL; experience with PyTorch and TensorFlow; AWS-based development.

Responsibilities

• Build machine learning products to enrich Twitch’s content understanding and help creators and viewers build and discover communities.
• Propose, design, and oversee execution for high-impact projects that work backwards from customer problems to develop the right solution.
• Collaborate with cross-functional engineering and product teams to prototype and deploy models into data pipelines and ML services.
• Stay updated on and experiment with new ML techniques in LLM, computer vision, inference and model evaluation.

Skills

Python

SQL

Pytorch

TensorFlow

AWS

LLM evaluations

Education

Bachelor's degree in a quantitative field

Master's degree in ML (preferred)

PhD in ML (preferred)

Tools

AWS

Job description

About Us

Twitch is the world’s biggest live streaming service, with global communities built around gaming, entertainment, music, sports, cooking, and more. It is where thousands of communities come together for whatever, every day.

We’re about community, inside and out. You’ll find coworkers who are eager to team up, collaborate, and smash (or elegantly solve) problems together. We’re on a quest to empower live communities, so if this sounds good to you, see what we’re up to on LinkedIn and X, and discover the projects we’re solving on our Blog. Be sure to explore our Interviewing Guide to learn how to ace our interview process.

About The Role

We are looking for an Applied Scientist to solve challenging and open-ended problems in the domain of Creators and content contextual signals. As an Applied Scientist on Twitch's GTM Science team, you will use applied machine learning to tackle ambiguous business problems across problem areas such as Ads, Brand Safety, Creator Sponsorship and Content Understanding. You will lead high profile projects where you will use a wide toolbox of ML tools to handle multiple types of data, including user behavior, metadata, and user generated content such as text and video. You will collaborate with a team of passionate scientists, engineers, and product stakeholders to develop these models, prototype and put them into production, where they can help Twitch's creators and viewers succeed and build communities.

You will report to our Senior Data Science Manager for GTM. This position is located in San Francisco, CA.

You Will

• Build machine learning products to enrich Twitch’s content understanding and help creators and viewers build and discover their communities.
• Propose, design, and oversee execution for high-impact projects that work backwards from customer problems to develop the right solution for the job. Know when to use a classical ML model versus a state-of-the-art one.
• Collaborate with cross-functional engineering and product teams to prototype and deploy your models into flexible data pipelines and ML-based services.
• Bring innovation and help drive science culture on the team by staying up to date and experimenting with new techniques in LLM, computer vision, inference and model evaluation.

Perks

• Medical, Dental, Vision & Disability Insurance
• 401(k)
• Maternity & Parental Leave
• Flexible PTO
• Amazon Employee Discount

Basic Qualifications

• Experience working with technical and non-technical business owners/partners to overcome obstacles and deliver results
• A degree in a quantitative field (Computer Science, Mathematics, Statistics, Physics, Engineering, or similar) with: 5+ years of hands-on industry experience with applied ML (Bachelor's), or 3+ years of applied ML experience (Master's), or 1+ year of applied ML experience (PhD)
• Experience with LLM model evaluations.
• Experience owning projects that involve numerous scientists and engineers.
• Expertise with: Python and SQL, modern open source ML libraries (Pytorch, Tensorflow, etc.). Developing software in AWS or similar cloud‑computing services.

Preferred Qualifications

• PhD with a specialization in Machine Learning.
• Experience with computer vision, LLM inference, content understanding.
• 1+ years of experience working in GTM / Content / Creator orgs (not necessarily as a scientist).
• Familiarity with Twitch, its business, and its community.

Twitch is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Los Angeles County applicants: Job duties for this position include: work safely and cooperatively with other employees, supervisors, and staff; adhere to standards of excellence despite stressful conditions; communicate effectively and respectfully with employees, supervisors, and staff to ensure exceptional customer service; and follow all federal, state, and local laws and Company policies. Criminal history may have a direct, adverse, and negative relationship with some of the material job duties of this position. These include the duties and responsibilities listed above, as well as the abilities to adhere to company policies, exercise sound judgment, effectively manage stress and work safely and respectfully with others, exhibit trustworthiness and professionalism, and safeguard business operations and the Company’s reputation. Pursuant to the Los Angeles County Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

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, CA, SAN FRANCISCO - 171,600.00 - 222,200.00 USD annually