Reddit Software Engineer Interview Guide

The short answer: Reddit's job postings say that for some roles and locations it records, transcribes and summarizes interviews with AI, and candidates can opt out. Most US engineering roles are posted as Remote - United States, and each posting prints one base range for every US state. Reddit does not describe its interview steps on the pages we could read, so the process here comes from candidate reports: a recruiter call, a coding screen, a virtual onsite of about 4 to 5 rounds and a recruiter wrap-up. Last reviewed October 2026.

Reddit software engineer interview: quick answers

The Reddit software engineer role

What Reddit engineers work on, the skills its job postings ask for, and what a normal week looks like.

Reddit software engineer levels and pay

Your level sets the bar you are interviewed against and the pay band of the offer.

Reddit's posting text gives titles only. Its posting data maps Software Engineer, Senior, Staff and Senior Staff to IC3 to IC6, but titles and levels do not always match, and Reddit says a posting may span more than one career level.

Pay in Reddit's US job postings

Reddit's postings print one base salary range per posting, the same for every US state. They say the role is eligible for equity in restricted stock units and, depending on the position, may also be eligible for a commission.

Posting text states no level, so rows use posting titles. Reddit's posting data maps them to IC3 (Software Engineer), IC4 (Senior), IC5 (Staff) and IC6 (Senior Staff), but titles and levels do not always match. The Senior Core Platform posting pays the same in San Francisco as remote. Ranges seen October 27, 2026.

Reddit software engineer interview process

Reddit does not describe its interview steps on the pages we could read. Every step below comes from candidate reports and may differ by team and level.

Based on candidate reports.

Candidate reports put the process at about 2.5 to 4 weeks from first contact to offer. Reddit does not say who makes the decision, and its postings say one posting may span more than one career level, so your level is set during the process. Last reviewed October 2026.

What is different at Reddit

• Interviews may be recorded. For select roles and locations, Reddit records, transcribes and summarizes interviews with AI. You can opt out before scheduled interviews, and recordings are deleted after the hiring decision.
• Remote is the default. Most US software engineering roles are posted as Remote - United States, and the offices in New York, San Francisco, Los Angeles and Chicago are open to anyone who wants them.
• One range per posting, one posting for several levels. Reddit prints the same base range for every US state, and says a single posting may span more than one career level.
• Product engineers run experiments. Postings ask product engineers to design and read A/B experiments with data scientists, using tools such as BigQuery, HEX or Firebase.
• You may interview before you know your team. Some Consumer Engineering postings hire centrally across teams such as Feeds, Growth, Identity and Monetization.
• A separate values round. Candidate reports describe questions on principles such as 'Default to Open' and 'Evolve Fast', and on how you use Reddit.

Reddit software engineer interview questions

Coding problems from our bank tagged to Reddit, then design, fundamentals and behavioral prompts we wrote for this guide.

1from typing import List, Optional, Tuple
2
3def render_thread(comments: List[Tuple[int, Optional[int], int]], min_score: int) -> List[Tuple[int, int, bool]]:
4    """Return (id, depth, collapsed) in display order."""
5    pass

1from collections import defaultdict
2from typing import List, Optional, Tuple
3
4def render_thread(comments: List[Tuple[int, Optional[int], int]], min_score: int) -> List[Tuple[int, int, bool]]:
5    children = defaultdict(list)  # parent id (or None) -> [(score, id)]
6    for cid, parent, score in comments:
7        children[parent].append((score, cid))
8    for kids in children.values():
9        kids.sort(key=lambda k: (-k[0], k[1]))
10    order = []
11    # Iterative DFS so very deep threads do not hit the recursion limit.
12    stack = [(cid, score, 0) for score, cid in reversed(children[None])]
13    while stack:
14        cid, score, depth = stack.pop()
15        collapsed = score < min_score
16        order.append((cid, depth, collapsed))
17        if not collapsed:
18            stack.extend((kid, s, depth + 1) for s, kid in reversed(children[cid]))
19    return order
20
21# Complexity: O(n log n) time for sorting siblings, O(n) space.

How to prepare

A plan for the Reddit loop, most important first:

1. Practice medium coding problems with optimization follow-ups. Write clean code, state the complexity and test it out loud.
2. Practice system design on Reddit-shaped problems such as voting, feeds, media and ads, plus smaller object design questions.
3. Write stories for the values round. Candidate reports name principles such as 'Default to Open' and 'Evolve Fast'.
4. Prepare examples of coachability, learning on your own and explaining complex work to non-technical partners.
5. For product roles, review A/B experiment design: metrics, randomization, sample size and common pitfalls.
6. Set up for video interviews, decide whether to opt out of AI recording, and know how you use Reddit yourself.

Practice path

Courses that cover the rounds above:

• Data Structures and Algorithms
• System Design