Reddit

Staff Software Engineer - Site Defense

Reddit · Remote - United States

Posted 14 days ago

or apply directly on Reddit's site. We never take the application ourselves.

Is this posting real?

This role has been open
14 days
Reddit's roles stay open a median of 45 days
Reposted
No
Salary listed
No
0% of Reddit's roles list one
Ghost-job risk at Reddit
high
90 stale, 3 reposted of 150 open
Hiring momentum
259 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-09-17

Measured from postings appearing on and disappearing from Reddit's own greenhouse board since 2026-08-03. Full hiring picture for Reddit.

About this role

As a Staff Software Engineer on the Site Defense team at Reddit, you will design and operate systems that protect the platform from DDoS attacks and automated abuse. Your role involves building defenses, analyzing traffic, and collaborating with security teams to ensure performance and user experience. You will also mentor junior engineers and contribute to machine learning initiatives related to traffic classification and anomaly detection.

Our read on this posting3.4out of 5
benefits
4/5
freshness
4/5
career value
4/5
role clarity
5/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Reddit as an employer.

What you need

  • 7+ years of experience building and operating high throughput and low latency production distributed systems
  • Software development experience in one or more general purpose programming languages; Python, Go, Rust, Java, C++
  • Excellent communication skills to collaborate with a service-oriented team and company
  • Experience with DDoS mitigation, WAFs, bot management, or abuse prevention systems
  • Experience with networking fundamentals (HTTP, TLS, TCP/IP, proxies, CDNs, load balancing)

Nice to have

  • Experience with anti-abuse frameworks and bot scores (ReCaptcha, Datadome, Turnstile)
  • Experience with browser fingerprinting frameworks (fingerprintJS, ThumbmarkJS)
  • Familiarity with ML systems in production, especially real-time inference or feature pipelines

What you get

  • Comprehensive Healthcare Benefits and Income Replacement Programs
  • 401k with Employer Match
  • 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

Worth weighing

  • No specific mention of the technology stack used, which may vary
  • The role involves a significant focus on security and performance, which could lead to high-pressure situations
  • The job posting indicates a wide salary range, which may reflect varying levels of experience or negotiation outcomes

Summarised from Reddit's posting. Read the full original.

Listed by Reddit on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.

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