Senior SRE, Ads

About Reddit

Reddit is a community of communities, built on shared interests, passion, and trust. It's a platform for open and authentic conversations, hosting over 100,000 active communities and serving approximately 126 million daily active unique visitors. Visit www.redditinc.com for more information.

Location

Reddit operates on a flexible-first workforce model. This role is remote and can be performed from anywhere in the UK, the Netherlands, or Ireland.

The Role

The Ads organization powers Reddit's advertising platform, enabling advertisers to reach highly engaged communities and driving business growth. The Ads Reliability team collaborates closely with Ads Engineering to enhance reliability, scalability, operational excellence, and developer productivity across the advertising ecosystem. We are seeking a Senior Site Reliability Engineer to build, operate, and scale the critical systems behind Reddit Ads.

Responsibilities

• Partner with Ads Engineering teams to improve reliability, scalability, and operational excellence of ad-serving, auction, targeting, measurement, and billing systems.
• Design, build, and maintain infrastructure, tooling, and automation that improve service reliability and engineering productivity.
• Enhance observability through monitoring, alerting, tracing, logging, and dashboards.
• Participate in on-call rotations and lead incident response efforts for critical production systems.
• Conduct root cause analysis and drive corrective actions following incidents.
• Collaborate with software engineers throughout the service lifecycle, from design reviews to production operations.
• Drive adoption of SRE best practices including SLIs, SLOs, error budgets, capacity planning, and operational readiness reviews.
• Reduce operational toil through automation and self-service tooling.
• Help define and measure advertiser-critical user journeys such as campaign creation, ad delivery, reporting, and billing.
• Scale Ads systems to support continued traffic growth, increased advertiser demand, and evolving business requirements.

Required Qualifications

• 5+ years of experience in Site Reliability Engineering, Infrastructure Engineering, or related roles operating large-scale distributed systems.
• Strong experience supporting high-traffic, user-facing production environments.
• Good understanding of distributed systems, networking, Linux systems, and cloud-native architectures.
• Proficiency in programming languages such as Go, Python, or similar.
• Demonstrated ability to troubleshoot complex issues across applications, infrastructure, networking, and services.
• Experience with observability platforms, monitoring systems, alerting, and incident response.
• Experience driving automation and operational improvements.

Benefits

• Global Benefit programs tailored to your lifestyle, including workspace and professional development support.
• Family Planning Support
• Gender-Affirming Care
• Mental Health & Coaching Benefits
• Group Personal Pension Scheme with Employer match
• Private Medical and Dental Scheme
• Income Replacement Programs
• Bike to Work scheme
• Flexible Vacation & Paid Volunteer Time Off
• Generous Paid Parental Leave

Equal Opportunity Employer

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