What you'll be doing

• Build recommendation models for video recommendations.
• Duties include building APIs to serving recommendations model online; researching and leveraging LLM on recommendations; and researching and leveraging computer vision models for image classification and video understanding.
• Experiment and implement semi-automatic annotation techniques which involve minimal human supervision, for Natural Language Understanding (NLU) models, to help speed up the annotation process without sacrificing quality.
• Re-train existing ML and DL models, and evaluate performance on the semi-automatically annotated data.
• Provide current data annotation processes and propose ideas to improve the pipeline for NLU capabilities of the Roku Voice system.
• Collaborate with the engineering and product teams to launch research ideas into a Roku product release.
• Document work via internal wikis, design documents, record demos and slide presentations.

You are required to have

• Master's degree or foreign equivalent in Computer Science or related field.
• 2 years experience in position, as a Data Scientist, Research Engineer, Technical Lead, or related occupation.

Must have at least 1 year of prior work experience in each of the following:

1. Programming languages like Python and Object Oriented Programming (OOP)
2. Different types of machine learning (supervised, unsupervised, reinforcement, deep learning, computer vision, natural language processing such as LLM) and common algorithms
3. Machine learning frameworks such as PyTorch and Tensorflow
4. Data engineering skills such as SQL
5. Software engineering such as version control, testing and documentation
6. Linear algebra, calculus, probability, and statistics

Up to one day per week telecommuting may be permitted.

For California Only - The annual salary for this position is between $369,750 - $573,750

Compensation packages are based on factors unique to each candidate, including but not limited to skill set, certifications, and specific geographical location.

This role is eligible for health insurance, equity awards, life insurance, disability benefits, parental leave, wellness benefits, and paid time off.
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What's Roku's approach to hybrid working?

Roku fosters an inclusive and collaborative environment where teams generally work in the office Monday through Thursday. Fridays are generally flexible for remote work, except for employees whose specific roles or assigned office location require five days' a week attendance.

What are some of the benefits?

Roku is committed to offering a diverse range of benefits as part of our compensation package to support our employees and their families. Our comprehensive benefits include global access to mental health and financial wellness support and resources. Local benefits include statutory and voluntary benefits which may include healthcare (medical, dental, and vision), life, accident, disability, commuter, and retirement options (401(k)/pension). Employees are supported in taking time off, in accordance with local leave policies and other personal needs to support their evolving work and life needs. It's important to note that not every benefit is available in all locations or for every role. For details specific to your location, please consult with your recruiter.

Accommodations

Roku welcomes applicants of all backgrounds and provides reasonable accommodations and adjustments in accordance with applicable law. If you require reasonable accommodation at any point in the hiring process, please direct your inquiries to [redacted].