Duolingo

Staff AI Research Engineer

Duolingo$220K — $331K *
Consumer Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Proven experience as an AI Research Engineer with focus on LLMs, bandits, or computer vision.
  • Strong background in training and fine-tuning large models in applied scenarios.
  • Advanced degree in Computer Science, Engineering, or closely related field with machine learning focus.
  • Excellent leadership and communication skills for managing teams.
  • Deep understanding of machine learning concepts, frameworks, and best practices.

Responsibilities

  • Join a diverse, full-stack team to foster collaboration and innovation.
  • Develop and train bandit models and large-scale neural network models.
  • Work with cross-functional teams to align model outputs with company goals.
  • Contribute to strategic product and business decision-making as a Monetization leader.
  • Stay updated on machine learning advancements, particularly LLMs and bandits, to enhance projects.
  • Mentor colleagues, offering guidance and support in their professional growth.
  • Ensure high-quality, scalable, and efficient delivery of ML solutions.

Benefits

  • Equity compensation opportunity.
  • Comprehensive health benefits.
  • Flexible working arrangements and support for work-life balance.
  • Retirement savings options with employer contributions.
Full Job Description
About the role...

We are looking for an experienced AI Research Engineer to join our Duolingo Monetization team. The ideal candidate will have a proven track record as an AI research engineer, with extensive experience across various machine learning techniques including large language models, multi-armed bandits, and more. They will have experience at all levels of the ML stack, including feature engineering, developing training data, fine-tuning, reinforcement learning, quality evaluations, deployment, and monitoring. On the Monetization team, we're building AI systems to improve the learning experience while driving our business, including deploying our research into bandit models to balance revenue and retention. Given the broad set of AI domains, broad experience in AI/ML is highly desirable.

You will...
  • Join a full-stack team of frontend, backend and other AI Research engineers, fostering a collaborative and innovative work environment.
  • Contribute to the development and training of bandit models and large-scale neural network models.
  • Collaborate with cross-functional teams to understand their needs, to align the models' outputs with company objectives.
  • Participate in and help drive strategic product and business decision making as a member of the Monetization leadership group.
  • Stay up-to-date with the latest developments in machine learning, particularly in LLMs and bandits, and apply this knowledge to drive advancements in our projects.
  • Mentor team members, providing guidance and support in their professional development.
  • Ensure the delivery of high-quality, scalable, and efficient machine learning solutions.

You have...
  • Proven experience as an AI research engineer, for example, in LLMs, bandits, computer vision, or related fields.
  • Strong background in training and fine-tuning large models in an applied setting.
  • Advanced degree in Computer Science, Engineering, or a related field with a focus on machine learning or artificial intelligence, or equivalent experience.
  • Excellent leadership and communication skills, with the ability to manage and inspire a team.
  • Deep understanding of machine learning concepts, frameworks, and best practices.


We post a multi-level salary range for all of our roles.

This is not inclusive of the rest of our awesome portfolio that includes equity compensation and world-class benefits. Our salary ranges are the same for all US locations. Your recruiter can share more details about the range for a specific level during the hiring process. The actual salary within the range is determined by many factors including but not limited to, skills, experience, education, and internal equity.

Salary Range:

$220,800-$331,200 USD

Take a peek at how we care for our employees' holistic well-being with our benefits here.

We will do everything we can within reason to make sure that your interview takes place in an environment that fairly and accurately assesses your skills. If you need assistance or accommodation, please contact [redacted].

Unfortunately, there is a rise in scammers pretending to be real Duolingo employees. Duolingo and our employees will never ask for your Social Security number, bank details, or passport info, and we'll never ask you to deposit a check, purchase equipment, or exchange money during the interview process. Real Duolingo employees always use an email that ends in or @recruiting.duolingo.com. Stay alert and double-check these details before sharing any information.

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About Duolingo

Duolingo is a language-learning platform that includes a language-learning website and app, as well as a digital language proficiency assessment exam. The company was founded in 2011 by Luis von Ahn and Severin Hacker. Duolingo offers courses in over 40 languages, including Spanish, French, German, Italian, and Chinese. The platform is free to use, but users can pay for additional features. Duolingo has won numerous awards for its innovative approach to language learning.
Learn more about Duolingo
Size
400 employees
Market Cap
$2.7 billion
Industry
Founded
2011
NASDAQ

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