jobctl

Senior Staff Data Scientist - Consumer Experimentation

Reddit - Remote - Ontario, Canada - original posting ->
Status
Open
Remote policy
Remote
Employment type
Not stated
Salary
Not stated
Categories
Consumer Data Science
Tech
pythonremote-countrydatastaff
Source
reddit
First observed
2026-08-18 21:01 UTC
Last seen
2026-10-04 15:55 UTC
Source claims posted
2026-06-01 18:44 UTC
Consecutive misses
0 of 3

What the posting says

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com.

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 126 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com.

Reddit is poised to rapidly innovate and grow like no other time in its history. This is a unique opportunity to leave your mark on one of the most influential and trafficked corners of the internet.

Consumer data science plays a key role in fulfilling Reddit’s mission of bringing community & belonging to the world through deep understanding of how we can better connect people to the best information and communities for them - the heart of Reddit’s product - from crypto to support groups, gaming to AMAs, travel tips to memes.

Reddit's experimentation landscape presents uniquely challenging problems. Our platform is a deeply interconnected network of communities, contributors, and consumers – meaning that standard A/B testing assumptions often break down. We need a senior technical leader who thrives on these hard problems and can raise the bar for causal inference and experimentation rigor across the entire Consumer organization.

As a Senior Staff Data Scientist on the Consumer team, you will be the go-to expert on experimentation methodology, owning the most complex and high-stakes experimentation challenges across Consumer. You will shape how Reddit learns from its experiments, ensure we draw valid causal conclusions in the presence of network effects and interference, and influence product strategy through rigorous experimental design and analysis.

Responsibilities:

Serve as the technical authority on experimentation methodology across Consumer, setting standards for design, analysis, and interpretation of experiments in a complex, networked environment

Tackle the hardest experimentation problems at Reddit, including spillover and network effects, interference between treatment and control, two-sided experimentation, and long-run effect estimation

Develop and advance methods for causal inference in settings where standard randomization assumptions are violated, such as cluster-randomized designs, switchback experiments, and synthetic control approaches

Design experimentation frameworks and guardrail metrics that account for ecosystem-level effects, ensuring product teams can measure true causal impact rather than biased local estimates

Identify opportunities where improved experimentation methodology can unlock product insights that were previously unmeasurable or ambiguous

Build and scale self-serve experimentation tools, platforms, and best-practice documentation that increase experimentation velocity and literacy across product, engineering, and design teams

Influence the long-term product strategy by driving learning through well-designed experiments and translating experimental results into clear, actionable recommendations for senior leadership

Mentor and elevate other data scientists across the organization on experimentation best practices, causal reasoning, and statistical rigor

Publish and share methodological advances internally and, where appropriate, externally to contribute to the broader experimentation and causal inference community

Required Qualifications:

Ph.D. in Statistics, Econometrics, Economics, Computer Science, or a related quantitative field with a strong focus on causal inference or experimentation methodology; or M.S. with equivalent depth of expertise

For M.S. holders: 12+ years of industry experience in applied science, data science, or experimentation-focused roles

For Ph.D. holders: 8+ years of industry experience in applied science, data science, or experimentation-focused roles

Deep expertise in causal inference, including practical experience with challenges such as network interference / spillovers, two-sided experimentation, switchback designs, cluster randomization, and/or synthetic control methods

Strong theoretical grounding in experimental design, including power analysis, variance reduction techniques, sequential testing, and multiple comparison corrections

Experience with experimentation platforms at scale (e.g., building or significantly extending an internal experimentation platform)

Expert knowledge of SQL and proficiency in R and/or Python for statistical computing

Track record of designing and analyzing experiments at scale in complex or networked environments

Demonstrated ability to influence product and organizational strategy through experimentation insights

Demonstrated ability to take ambiguous, technically complex problems and solve them in a structured, hypothesis-driven way

Excellent communication skills with the ability to explain nuanced statistical concepts and tradeoffs to both technical and non-technical senior stakeholders

Experience mentoring data scientists and building organizational capability in experimentation and causal reasoning

Comfortable in innovative and fast-paced environments with a bias toward action

Preferred Qualifications:

Published research or industry contributions in areas such as interference in experiments, network experimentation, or marketplace causal inference

Familiarity with Bayesian experimental methods, bandit algorithms, or adaptive experimental designs

Experience with social network or user-generated content platforms where community-level dynamics create non-trivial experimentation challenges

Benefits:

Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support

Family Planning Support

Gender-Affirming Care

Mental Health & Coaching Benefits

Comprehensive Medical Benefits & Health Care Spending Account

Registered Retirement Savings Plan with matching contributions

Income Replacement Programs

Flexible Vacation & Paid Volunteer Time Off

Generous Paid Parental Leave

#LI-REMOTE

In select roles and locations, the interviews will be recorded, transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews.

During the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share with us. We will use this information to evaluate your application for employment or an independent contractor role, as applicable. We will not sell your personal information or disclose it to any third party for their marketing purposes. We will delete any recording of your interview promptly after making a hiring decision. For more information about how we will handle your personal information, including our retention of it, please refer to our Candidate Privacy Policy for Potential Employees and Contractors.

Reddit is proud to be an equal opportunity employer, and is committed to building a workforce representative of the diverse communities we serve. Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If, due to a disability, you need an accommodation during the interview process, please let your recruiter know.

Quality

Completeness: 65%
Honesty: 100%

Based on 96 observation(s).

Timeline

  1. *
    #161018 2026-08-18 21:01 UTC
    Published
  2. ~
    #167444 2026-08-19 01:02 UTC
    Modified
    • source_updated_at
      2026-08-18T08:24:16-04:00->2026-08-18T20:13:14-04:00
  3. ~
    #188014 2026-08-19 15:13 UTC
    Modified
    • source_updated_at
      2026-08-18T20:13:14-04:00->2026-08-19T08:08:18-04:00
  4. ~
    #199643 2026-08-20 01:16 UTC
    Modified
    • source_updated_at
      2026-08-19T08:08:18-04:00->2026-08-19T20:18:14-04:00
  5. ~
    #213744 2026-08-20 13:26 UTC
    Modified
    • source_updated_at
      2026-08-19T20:18:14-04:00->2026-08-20T08:24:15-04:00
  6. ~
    #227108 2026-08-21 00:25 UTC
    Modified
    • source_updated_at
      2026-08-20T08:24:15-04:00->2026-08-20T20:08:57-04:00
  7. ~
    #245397 2026-08-21 13:43 UTC
    Modified
    • source_updated_at
      2026-08-20T20:08:57-04:00->2026-08-21T08:13:50-04:00
  8. ~
    #262996 2026-08-22 03:55 UTC
    Modified
    • source_updated_at
      2026-08-21T08:13:50-04:00->2026-08-21T20:14:53-04:00
  9. ~
    #272920 2026-08-22 15:55 UTC
    Modified
    • source_updated_at
      2026-08-21T20:14:53-04:00->2026-08-22T08:08:35-04:00
  10. ~
    #286839 2026-08-23 01:46 UTC
    Modified
    • source_updated_at
      2026-08-22T08:08:35-04:00->2026-08-22T20:08:52-04:00
  11. ~
    #296608 2026-08-23 13:47 UTC
    Modified
    • source_updated_at
      2026-08-22T20:08:52-04:00->2026-08-23T08:11:52-04:00
  12. ~
    #315192 2026-08-24 03:31 UTC
    Modified
    • source_updated_at
      2026-08-23T08:11:52-04:00->2026-08-23T20:10:31-04:00
  13. ~
    #329856 2026-08-24 12:49 UTC
    Modified
    • source_updated_at
      2026-08-23T20:10:31-04:00->2026-08-24T08:09:08-04:00
  14. ~
    #345938 2026-08-25 02:23 UTC
    Modified
    • source_updated_at
      2026-08-24T08:09:08-04:00->2026-08-24T20:15:43-04:00
  15. ~
    #360704 2026-08-25 15:02 UTC
    Modified
    • source_updated_at
      2026-08-24T20:15:43-04:00->2026-08-25T08:22:38-04:00
  16. ~
    #374498 2026-08-26 03:23 UTC
    Modified
    • source_updated_at
      2026-08-25T08:22:38-04:00->2026-08-25T20:10:18-04:00
  17. ~
    #381977 2026-08-26 12:57 UTC
    Modified
    • source_updated_at
      2026-08-25T20:10:18-04:00->2026-08-26T08:21:10-04:00
  18. ~
    #391800 2026-08-27 02:39 UTC
    Modified
    • source_updated_at
      2026-08-26T08:21:10-04:00->2026-08-26T20:17:38-04:00
  19. ~
    #399443 2026-08-27 14:40 UTC
    Modified
    • source_updated_at
      2026-08-26T20:17:38-04:00->2026-08-27T08:13:15-04:00
  20. ~
    #403242 2026-08-27 18:40 UTC
    Modified
    • source_updated_at
      2026-08-27T08:13:15-04:00->2026-08-27T14:24:23-04:00
  21. ~
    #410529 2026-08-28 02:40 UTC
    Modified
    • source_updated_at
      2026-08-27T14:24:23-04:00->2026-08-27T20:18:06-04:00
  22. ~
    #420867 2026-08-28 14:41 UTC
    Modified
    • source_updated_at
      2026-08-27T20:18:06-04:00->2026-08-28T08:11:27-04:00
  23. ~
    #431607 2026-08-29 02:41 UTC
    Modified
    • source_updated_at
      2026-08-28T08:11:27-04:00->2026-08-28T20:18:54-04:00
  24. ~
    #437952 2026-08-29 13:12 UTC
    Modified
    • source_updated_at
      2026-08-28T20:18:54-04:00->2026-08-29T08:16:39-04:00
  25. ~
    #453114 2026-08-30 03:48 UTC
    Modified
    • source_updated_at
      2026-08-29T08:16:39-04:00->2026-08-29T20:21:25-04:00
  26. ~
    #464316 2026-08-30 13:33 UTC
    Modified
    • source_updated_at
      2026-08-29T20:21:25-04:00->2026-08-30T08:22:24-04:00
  27. ~
    #472057 2026-08-31 01:42 UTC
    Modified
    • source_updated_at
      2026-08-30T08:22:24-04:00->2026-08-30T20:12:21-04:00
  28. ~
    #481210 2026-08-31 13:24 UTC
    Modified
    • source_updated_at
      2026-08-30T20:12:21-04:00->2026-08-31T08:18:42-04:00
  29. ~
    #491237 2026-09-01 01:29 UTC
    Modified
    • source_updated_at
      2026-08-31T08:18:42-04:00->2026-08-31T20:10:05-04:00
  30. ~
    #499945 2026-09-01 13:29 UTC
    Modified
    • source_updated_at
      2026-08-31T20:10:05-04:00->2026-09-01T08:09:42-04:00
  31. ~
    #513872 2026-09-02 01:29 UTC
    Modified
    • source_updated_at
      2026-09-01T08:09:42-04:00->2026-09-01T20:14:43-04:00
  32. ~
    #527346 2026-09-02 13:30 UTC
    Modified
    • source_updated_at
      2026-09-01T20:14:43-04:00->2026-09-02T08:20:58-04:00
  33. ~
    #538731 2026-09-03 01:31 UTC
    Modified
    • source_updated_at
      2026-09-02T08:20:58-04:00->2026-09-02T20:11:49-04:00
  34. ~
    #549589 2026-09-03 13:31 UTC
    Modified
    • source_updated_at
      2026-09-02T20:11:49-04:00->2026-09-03T08:16:21-04:00
  35. ~
    #561667 2026-09-04 01:32 UTC
    Modified
    • source_updated_at
      2026-09-03T08:16:21-04:00->2026-09-03T20:07:26-04:00
  36. ~
    #570868 2026-09-04 13:32 UTC
    Modified
    • source_updated_at
      2026-09-03T20:07:26-04:00->2026-09-04T08:19:24-04:00
  37. ~
    #581894 2026-09-05 01:36 UTC
    Modified
    • source_updated_at
      2026-09-04T08:19:24-04:00->2026-09-04T20:29:19-04:00
  38. ~
    #588693 2026-09-05 13:36 UTC
    Modified
    • source_updated_at
      2026-09-04T20:29:19-04:00->2026-09-05T08:21:03-04:00
  39. ~
    #596760 2026-09-06 03:43 UTC
    Modified
    • source_updated_at
      2026-09-05T08:21:03-04:00->2026-09-05T20:14:30-04:00
  40. ~
    #604578 2026-09-06 15:43 UTC
    Modified
    • source_updated_at
      2026-09-05T20:14:30-04:00->2026-09-06T08:17:08-04:00
  41. ~
    #610875 2026-09-07 03:44 UTC
    Modified
    • source_updated_at
      2026-09-06T08:17:08-04:00->2026-09-06T20:08:35-04:00
  42. ~
    #618700 2026-09-07 15:48 UTC
    Modified
    • source_updated_at
      2026-09-06T20:08:35-04:00->2026-09-07T08:16:19-04:00
  43. ~
    #628363 2026-09-08 03:48 UTC
    Modified
    • source_updated_at
      2026-09-07T08:16:19-04:00->2026-09-07T20:10:27-04:00
  44. ~
    #638135 2026-09-08 15:49 UTC
    Modified
    • source_updated_at
      2026-09-07T20:10:27-04:00->2026-09-08T08:19:08-04:00
  45. ~
    #649010 2026-09-09 03:51 UTC
    Modified
    • source_updated_at
      2026-09-08T08:19:08-04:00->2026-09-08T20:17:52-04:00
  46. ~
    #659148 2026-09-09 15:51 UTC
    Modified
    • source_updated_at
      2026-09-08T20:17:52-04:00->2026-09-09T08:26:07-04:00
  47. ~
    #669942 2026-09-10 04:05 UTC
    Modified
    • source_updated_at
      2026-09-09T08:26:07-04:00->2026-09-09T20:16:58-04:00
  48. ~
    #681336 2026-09-10 16:12 UTC
    Modified
    • source_updated_at
      2026-09-09T20:16:58-04:00->2026-09-10T08:23:28-04:00
  49. ~
    #689514 2026-09-11 00:12 UTC
    Modified
    • source_updated_at
      2026-09-10T08:23:28-04:00->2026-09-10T20:07:25-04:00
  50. ~
    #699782 2026-09-11 13:19 UTC
    Modified
    • source_updated_at
      2026-09-10T20:07:25-04:00->2026-09-11T08:32:20-04:00
  51. ~
    #710503 2026-09-12 01:24 UTC
    Modified
    • source_updated_at
      2026-09-11T08:32:20-04:00->2026-09-11T20:15:55-04:00
  52. ~
    #716456 2026-09-12 13:24 UTC
    Modified
    • source_updated_at
      2026-09-11T20:15:55-04:00->2026-09-12T08:18:14-04:00
  53. ~
    #721925 2026-09-13 01:24 UTC
    Modified
    • source_updated_at
      2026-09-12T08:18:14-04:00->2026-09-12T20:36:14-04:00
  54. ~
    #729592 2026-09-13 13:24 UTC
    Modified
    • source_updated_at
      2026-09-12T20:36:14-04:00->2026-09-13T08:10:36-04:00
  55. ~
    #734951 2026-09-14 01:24 UTC
    Modified
    • source_updated_at
      2026-09-13T08:10:36-04:00->2026-09-13T20:17:17-04:00
  56. ~
    #742560 2026-09-14 13:30 UTC
    Modified
    • source_updated_at
      2026-09-13T20:17:17-04:00->2026-09-14T08:10:05-04:00
  57. ~
    #758328 2026-09-15 01:31 UTC
    Modified
    • source_updated_at
      2026-09-14T08:10:05-04:00->2026-09-14T20:11:54-04:00
  58. ~
    #768857 2026-09-15 13:32 UTC
    Modified
    • source_updated_at
      2026-09-14T20:11:54-04:00->2026-09-15T08:08:29-04:00
  59. ~
    #782401 2026-09-16 01:32 UTC
    Modified
    • source_updated_at
      2026-09-15T08:08:29-04:00->2026-09-15T20:14:47-04:00
  60. ~
    #791057 2026-09-16 13:32 UTC
    Modified
    • source_updated_at
      2026-09-15T20:14:47-04:00->2026-09-16T08:26:58-04:00
  61. ~
    #804704 2026-09-17 01:33 UTC
    Modified
    • source_updated_at
      2026-09-16T08:26:58-04:00->2026-09-16T20:16:50-04:00
  62. ~
    #814017 2026-09-17 13:34 UTC
    Modified
    • source_updated_at
      2026-09-16T20:16:50-04:00->2026-09-17T08:26:33-04:00
  63. ~
    #824016 2026-09-18 01:44 UTC
    Modified
    • source_updated_at
      2026-09-17T08:26:33-04:00->2026-09-17T20:16:45-04:00
  64. ~
    #834917 2026-09-18 13:44 UTC
    Modified
    • source_updated_at
      2026-09-17T20:16:45-04:00->2026-09-18T08:33:30-04:00
  65. ~
    #854157 2026-09-19 01:45 UTC
    Modified
    • source_updated_at
      2026-09-18T08:33:30-04:00->2026-09-18T20:21:00-04:00
  66. ~
    #862111 2026-09-19 13:45 UTC
    Modified
    • source_updated_at
      2026-09-18T20:21:00-04:00->2026-09-19T08:21:00-04:00
  67. ~
    #869869 2026-09-20 01:50 UTC
    Modified
    • source_updated_at
      2026-09-19T08:21:00-04:00->2026-09-19T20:15:00-04:00
  68. ~
    #877610 2026-09-20 13:50 UTC
    Modified
    • source_updated_at
      2026-09-19T20:15:00-04:00->2026-09-20T08:19:47-04:00
  69. ~
    #883884 2026-09-21 01:50 UTC
    Modified
    • source_updated_at
      2026-09-20T08:19:47-04:00->2026-09-20T20:07:14-04:00
  70. ~
    #894199 2026-09-21 13:51 UTC
    Modified
    • source_updated_at
      2026-09-20T20:07:14-04:00->2026-09-21T08:16:18-04:00
  71. ~
    #912692 2026-09-22 01:53 UTC
    Modified
    • source_updated_at
      2026-09-21T08:16:18-04:00->2026-09-21T20:22:23-04:00
  72. ~
    #922374 2026-09-22 13:55 UTC
    Modified
    • source_updated_at
      2026-09-21T20:22:23-04:00->2026-09-22T08:28:19-04:00
  73. ~
    #934588 2026-09-23 01:56 UTC
    Modified
    • source_updated_at
      2026-09-22T08:28:19-04:00->2026-09-22T20:11:06-04:00
  74. ~
    #946202 2026-09-23 14:02 UTC
    Modified
    • source_updated_at
      2026-09-22T20:11:06-04:00->2026-09-23T08:21:05-04:00
  75. ~
    #960174 2026-09-24 02:03 UTC
    Modified
    • source_updated_at
      2026-09-23T08:21:05-04:00->2026-09-23T20:16:39-04:00
  76. ~
    #970871 2026-09-24 14:03 UTC
    Modified
    • source_updated_at
      2026-09-23T20:16:39-04:00->2026-09-24T08:23:27-04:00
  77. ~
    #987521 2026-09-25 02:06 UTC
    Modified
    • source_updated_at
      2026-09-24T08:23:27-04:00->2026-09-24T20:18:51-04:00
  78. ~
    #998191 2026-09-25 14:11 UTC
    Modified
    • source_updated_at
      2026-09-24T20:18:51-04:00->2026-09-25T08:16:19-04:00
  79. ~
    #1010544 2026-09-26 02:15 UTC
    Modified
    • source_updated_at
      2026-09-25T08:16:19-04:00->2026-09-25T20:21:39-04:00
  80. ~
    #1017772 2026-09-26 14:20 UTC
    Modified
    • source_updated_at
      2026-09-25T20:21:39-04:00->2026-09-26T08:15:07-04:00
  81. ~
    #1025365 2026-09-27 02:20 UTC
    Modified
    • source_updated_at
      2026-09-26T08:15:07-04:00->2026-09-26T20:32:51-04:00
  82. ~
    #1032127 2026-09-27 14:20 UTC
    Modified
    • source_updated_at
      2026-09-26T20:32:51-04:00->2026-09-27T08:38:19-04:00
  83. ~
    #1038843 2026-09-28 02:28 UTC
    Modified
    • source_updated_at
      2026-09-27T08:38:19-04:00->2026-09-27T20:21:27-04:00
  84. ~
    #1046960 2026-09-28 14:28 UTC
    Modified
    • source_updated_at
      2026-09-27T20:21:27-04:00->2026-09-28T08:16:37-04:00
  85. ~
    #1057149 2026-09-29 02:28 UTC
    Modified
    • source_updated_at
      2026-09-28T08:16:37-04:00->2026-09-28T20:29:02-04:00
  86. ~
    #1068397 2026-09-29 14:36 UTC
    Modified
    • source_updated_at
      2026-09-28T20:29:02-04:00->2026-09-29T08:21:47-04:00
  87. ~
    #1083324 2026-09-30 02:43 UTC
    Modified
    • source_updated_at
      2026-09-29T08:21:47-04:00->2026-09-29T20:12:36-04:00
  88. ~
    #1091934 2026-09-30 14:43 UTC
    Modified
    • source_updated_at
      2026-09-29T20:12:36-04:00->2026-09-30T08:21:34-04:00
  89. ~
    #1103074 2026-10-01 02:44 UTC
    Modified
    • source_updated_at
      2026-09-30T08:21:34-04:00->2026-09-30T20:19:16-04:00
  90. ~
    #1114592 2026-10-01 14:49 UTC
    Modified
    • source_updated_at
      2026-09-30T20:19:16-04:00->2026-10-01T08:08:31-04:00
  91. ~
    #1125916 2026-10-02 02:59 UTC
    Modified
    • source_updated_at
      2026-10-01T08:08:31-04:00->2026-10-01T20:20:53-04:00
  92. ~
    #1137128 2026-10-02 15:26 UTC
    Modified
    • source_updated_at
      2026-10-01T20:20:53-04:00->2026-10-02T08:26:06-04:00
  93. ~
    #1148708 2026-10-03 03:48 UTC
    Modified
    • source_updated_at
      2026-10-02T08:26:06-04:00->2026-10-02T20:07:44-04:00
  94. ~
    #1156566 2026-10-03 15:54 UTC
    Modified
    • source_updated_at
      2026-10-02T20:07:44-04:00->2026-10-03T08:09:18-04:00
  95. ~
    #1165399 2026-10-04 03:55 UTC
    Modified
    • source_updated_at
      2026-10-03T08:09:18-04:00->2026-10-03T20:08:54-04:00
  96. ~
    #1171600 2026-10-04 15:55 UTC
    Modified
    • source_updated_at
      2026-10-03T20:08:54-04:00->2026-10-04T08:27:27-04:00