Senior Machine Learning Engineer, Top Of Funnel

Company: Alien Blue
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Job Description:

Machine Learning Deep Learning Pytorch Data Science Tensorflow

Join Reddit’s Top of Funnel team and play a key role in user growth. Leverage your expertise in machine learning and search engines to introduce Reddit to new users and transform them into engaged members of the community. As a core member, you’ll use vast amounts of user data to enhance Reddit’s ability to attract, engage, and guide new users. You will own projects from ideation to production, collaborating with a talented, cross‑functional team to solve hard problems and create experiences that users will love. The team values impact, personal growth, openness, and kindness.

Responsibilities

  • Collaborate on projects with other Top of Funnel engineers, applying Machine Learning to solve discovery, relevance, and recommendation problems.
  • Build and deploy sophisticated machine learning models to improve experiences for millions of users.
  • Participate in the full software development cycle: design, develop, QA, deploy, experiment, analyze, and iterate.
  • Collaborate across disciplines and with other ML teams at Reddit to find technical solutions to complex challenges.
  • Be a mentor and cross‑functional advocate for the team.

Qualifications

  • 2+ years of experience with industry‑level deep learning models.
  • 2+ years of experience with mainstream ML frameworks (such as TensorFlow and PyTorch).
  • 4+ years of end‑to‑end experience of training, evaluating, testing, and deploying industry‑level models.
  • 4+ years of experience of orchestrating complicated data generation pipelines on large‑scale datasets.
  • Successful track record of productionizing and applying machine learning techniques in addressing real‑world problems end to end.
  • Comfort analyzing high‑volume natural language and multimodal data from varying sources, proficient with SQL.
  • Experience communicating complex research and ideas in a clear, precise, and actionable manner.
  • Experience working with data‑intensive systems and writing production‑quality software (preferred Python or Go).

Nice to have

  • Experience in content recommendations and content personalization.
  • Passionate about building delightful products for users.

Benefits

  • Group Personal Pension Scheme with Employer match.
  • Private Medical and Dental Scheme.
  • Income Replacement Programs.
  • Family Planning Support.
  • Gender‑Affirming Care.
  • Mental Health & Coaching Benefits.
  • Bike to Work scheme.
  • Flexible Vacation & Reddit Global Days Off.

How to Apply

Interested in this position? Please submit your resume and cover letter through the application portal.

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Posted: March 20th, 2026