Reddit

Staff Site Reliability Engineer, Ads

Reddit$217K — $303K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 8+ years of experience in Site Reliability Engineering or related fields
  • Expertise in large-scale distributed systems and high traffic environments
  • Strong collaboration skills for influencing operational excellence projects
  • Deep understanding of cloud-native architectures and observability systems
  • Proficient in backend programming languages, preferably Go
  • Experience with automation and performance optimization for reliability
  • Ability to troubleshoot complex issues across modern system stacks

Responsibilities

  • Lead reliability initiatives across various Ads domains
  • Develop a roadmap for enhancing reliability and scalability with engineering leadership
  • Design and implement platforms and tools for improved developer productivity
  • Conduct architecture reviews influencing revenue-critical decisions
  • Lead incident investigations and coordinate cross-functional responses
  • Identify and mitigate systemic reliability risks
  • Establish reliability metrics related to critical user journeys

Benefits

  • Comprehensive health benefits
  • 401k matching
  • Home office workspace support
  • Personal and professional development funds
  • Family planning support
  • Flexible vacation and global days off
  • 4+ months paid parental leave
  • Paid volunteer time off
Full Job Description


This role is remote friendly. Reddit has a flexible first workforce

The Ads organization powers Reddit's advertising platform, enabling advertisers to reach highly engaged communities while helping Reddit grow its business. The reliability of our Ads systems directly impacts advertiser success, revenue generation, and user experience.

The Ads Reliability team partners closely with Ads Engineering teams to improve reliability, scalability, operational excellence, and developer productivity across Reddit's advertising ecosystem.

We're looking for a Staff Site Reliability Engineer who will define and provide technical leadership for reliability initiatives across the Ads organization and help shape the future of Ads infrastructure at Reddit.
What you'll do:
  • Lead reliability initiatives across multiple Ads domains including ad serving, auctions, targeting, reporting, measurement, and billing.
  • Partner with engineering leadership to develop a roadmap to improve reliability, scalability, operational excellence, and engineering efficiency across the Ads organization.
  • Design and build platforms, tooling, and automation that improve reliability and developer productivity at scale.
  • Drive architecture reviews and influence technical decisions impacting critical revenue-generating systems.
  • Participate in on-call rotations, lead complex incident investigations and coordinate cross-functional response efforts during major production events.
  • Identify systemic reliability risks and drive long-term solutions that improve platform resilience.
  • Establish reliability metrics around advertiser-critical user journeys such as campaign creation, ad delivery, auction participation, reporting, attribution, and billing.
  • Mentor engineers and provide technical leadership across multiple teams.
  • Influence roadmap planning and ensure reliability considerations are incorporated into product and infrastructure investments.
What We're Looking For
  • 8+ years of experience in Site Reliability Engineering, Infrastructure Engineering, or related roles operating large scale distributed systems.
  • Strong experience evolving high traffic, user-facing production environments.
  • Strong cross-functional collaborations skills to lead and influence projects driving operational excellence.
  • Deep expertise in modern distributed systems, scale engineering, and cloud-native architectures.
  • Experience designing highly-available systems with strong operational and reliability practices.
  • Strong software engineering skills in languages like general-purpose backend languages like Go.
  • Strong understanding of observability systems including metrics, logging, tracing, and alerting.
  • Experience improving reliability through SLOs, automation, incident management, and performance optimization.
  • Demonstrated ability to troubleshoot complex issues across a modern distributed system stack.
  • Strong collaboration and communication skills with the ability to influence technical direction across teams.
Nice to Have
  • Experience supporting advertising technology platforms or other large-scale revenue-critical systems.
  • Deep understanding of reliability challenges associated with ad-serving, real-time auctions, budget pacing, campaign delivery, measurement, attribution, or billing systems.
  • Experience operating high-QPS, low-latency services where latency directly impacts business outcomes.
  • Experience establishing reliability programs that deliver meaningful, measurable business outcomes
  • Experience with Kubernetes, cloud infrastructure, and large-scale distributed systems.
  • Familiarity with Kafka, ClickHouse, Spark, Flink, BigQuery, or similar large-scale data platforms.
  • Experience partnering with Product, Data Science, and Ads Engineering organizations.
  • Experience supporting machine learning inference or recommendation systems at scale.

Benefits:
  • Comprehensive Health benefits
  • 401k Matching
  • Workspace benefits for your home office
  • Personal & Professional development funds
  • Family Planning Support
  • Flexible Vacation & Reddit Global Days Off
  • 4+ months paid Parental Leave
  • Paid Volunteer time off


Pay Transparency:

This job posting may span more than one career level.

In addition to base salary, this job is eligible to receive equity in the form of restricted stock units, and depending on the position offered, it may also be eligible to receive a commission. Additionally, Reddit offers a wide range of benefits to U.S.-based employees, including medical, dental, and vision insurance, 401(k) program with employer match, generous time off for vacation, and parental leave. To learn more, please visit https://www.redditinc.com/careers/.

To provide greater transparency to candidates, we share base salary ranges for all US-based job postings regardless of state. We set standard base pay ranges for all roles based on function, level, and country location, benchmarked against similar stage growth companies. Final offer amounts are determined by multiple factors including, skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed below.

The base salary range for this position is:

$217,000-$303,900 USD

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.

About Reddit

Reddit is an American social news aggregation, web content rating, and discussion website. Registered members submit content to the site such as links, text posts, images, and videos, which are then voted up or down by other members. Posts are organized by subject into user-created boards called "communities" or "subreddits", which cover topics such as news, politics, religion, science, movies, video games, music, books, sports, fitness, cooking, pets, and image-sharing. Submissions with more upvotes appear towards the top of their subreddit and, if they receive enough upvotes, ultimately on the site's front page. Although there are strict rules prohibiting harassment, it still occurs, and Reddit administrators moderate the communities and close or restrict them on occasion. Moderation is also conducted by community-specific moderators, who are not considered Reddit employees. As of September 2021, Reddit ranks as the 19th-most-visited website in the world and 7th most-visited website in the U.S., according to Alexa Internet. About 42–49.3% of its user base comes from the United States, followed by the United Kingdom at 7.9–8.2% and Canada at 5.2–7.8%. Twenty-two percent of U.S. adults aged 18 to 29 years, and 14 percent of U.S. adults aged 30 to 49 years, regularly use Reddit. Reddit was founded by University of Virginia roommates Steve Huffman and Alexis Ohanian, with Aaron Swartz, in 2005. Condé Nast Publications acquired the site in October 2006. In 2011, Reddit became an independent subsidiary of Condé Nast's parent company, Advance Publications. In October 2014, Reddit raised $50 million in a funding round led by Sam Altman and including investors Marc Andreessen, Peter Thiel, Ron Conway, Snoop Dogg, and Jared Leto. Their investment valued the company at $500 million then. In July 2017, Reddit raised $200 million for a $1.8 billion valuation, with Advance Publications remaining the majority stakeholder. In February 2019, a $300 million funding round led by Tencent brought the company's valuation to $3 billion. In August 2021, a $700 million funding round led by Fidelity Investments raised that valuation to over $10 billion.
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