Senior Site Reliability Engineer

Reddit; Greater London; On-site; GBP 70,000 - 90,000; Full time

Job summary

A leading technology company in Greater London seeks a Senior Site Reliability Engineer to enhance the performance and reliability of systems. This role involves collaboration with multiple teams to develop resilient infrastructure and automating critical tasks. Candidates should have over 5 years of experience in Software Engineering or DevOps, proficiency in Go and Python, and a deep understanding of Kubernetes and cloud systems. This unique opportunity allows you to significantly impact operational excellence.

Benefits

Pension Scheme

Private Medical and Dental Scheme

Life Assurance

Workspace benefit for home office

Personal & Professional development funds

Commuter Benefits

Flexible Vacation

Qualifications

• 5+ years of experience in Software Engineering, Site Reliability Engineering, or a development-focused DevOps role.
• Strong working knowledge of Linux and containers.
• Ability to debug, fix, and optimize code.

Responsibilities

• Work closely with engineering teams in designing and developing resilient systems.
• Identify and build capabilities into foundational infrastructure services.
• Automate repetitive or risky tasks and build integration tools.
• Diagnose and fix network and system-level issues.

Skills

Experience in Software Engineering

Proficiency in Go and Python

Kubernetes knowledge

Familiarity with distributed systems

Troubleshooting applications and systems

Excellent communication skills

Tools

Prometheus

Grafana

Thanos

Clickhouse

Containers

Job description

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 116 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com.

Reddit SRE is rapidly innovating and our teams are working to meet the needs of infrastructure and development teams as they evolve our product faster than ever before. This is a unique opportunity to leave your mark on one of the most influential and trafficked corners of the internet.

As a Senior Site Reliability Engineer on Reddit’s Infrastructure SRE team, you’ll use your knowledge of distributed systems and architecture to improve the reliability and performance of Reddit’s engineering platforms and services. We are looking for someone who thrives at the intersection of infrastructure and software development. This team will work very closely with the Compute, Traffic, and Observability infrastructure teams. They will own a suite of tools for allowing engineers to understand their creations, based primarily on open-source solutions at scale. We’re active users of and contributors to Prometheus, Thanos, Grafana, Vector and more.

In this role, you will also take ownership of risk management, ensuring the reliability and performance of our systems. You will collaborate with cross-functional teams to identify, assess, and mitigate risks, implementing best practices to enhance system resilience. Your expertise will drive proactive measures to maintain uptime and optimize service delivery, making a significant impact on our operational excellence.

Join us and help build the future of Reddit!

Responsibilities

• Advise:
  • Work closely with engineering teams in designing and developing systems that are resilient and highly performant at a tremendous scale, and maintaining the foundational platform for running Reddit’s infrastructure.
• Amplify:
  • Identify and build capabilities into our foundational Infrastructure and Platform services, which are used by Reddit engineering teams to build, deploy, and operate Reddit.
  • Deliver software to improve the availability, scalability, latency, and efficiency of observability components.
  • Identify and engineer away risk across Reddit’s systems.
• Automate:
  • Take repetitive, manual, or risky tasks and automate them out of existence. Build tools and integrate systems to support Reddit’s evolution.
  • Automate critical aspects of the event driven development process.
• Diagnose:
  • Draw on your knowledge of distributed systems to identify and fix network, system, and service-level issues. Practice sustainable incident response, and drive structural improvement with blameless postmortem.
  • Share on‑call responsibilities.
• Optimize:
  • Observe and improve performance, reduce cost, and improve the experience for millions of users.
  • Contribute upstream changes to the open source projects we use.

Qualifications

• 5+ years of experience in Software Engineering, Site Reliability Engineering, or a development‑focused DevOps role.
• Proficiency in one or more programming languages. We’re predominantly writing code in Go and Python.
• Experience with Kubernetes and Cloud systems.
• Familiarity with distributed systems development, bonus if familiar with any of the specific tools (Prometheus, Thanos, Grafana, Vector, Clickhouse, Otel, Loki).
• Experience with the development and operation of high‑traffic backend systems.
• A demonstrated ability to debug, fix, and optimize code.
• Troubleshooting skills that span applications, networking (TCP/IP), and systems.
• Strong working knowledge of Linux and containers.
• Excellent communication and collaborative skills.

Benefits

• Pension Scheme
• Private Medical and Dental Scheme
• Life Assurance, Income Protection
• Workspace benefit for your home office
• Personal & Professional development funds
• Family Planning Support
• Commuter Benefits
• Flexible Vacation & Reddit Global Days Off

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.