Senior SRE - Networks

Fastly helps people stay better connected with the things they love. Fastly’s edge cloud platform enables customers to create great digital experiences quickly, securely, and reliably by processing, serving, and securing our customers’ applications as close to their end‑users as possible — at the edge of the Internet. The platform is designed to take advantage of the modern internet, to be programmable, and to support agile software development. Fastly’s customers include many of the world’s most prominent companies, including GitHub, Yelp, Paramount, and JetBlue.

Fastly’s Technical Operations (TechOps) team is responsible for building & operating the infrastructure that powers the Fastly Edge Cloud Platform. We oversee an extensive global network that spans 6 continents with over 100 points of presence and 578 Tbps of connected capacity. Our platform serves a significant portion of the content delivered to internet consumers across the planet, with customers ranging from online media streaming services to e‑commerce, to open source projects, nonprofits and more. We take this responsibility seriously!

We’re looking for an experienced SRE with strong focus on Networks, SRE principles and knowledge of the internet who can bring engineering best practices, operational rigour, and automation skills to help craft the future of Fastly’s network and directly contribute to making the internet better.

What You’ll Do

• Build, operate, and maintain the continually growing global network footprint of Fastly’s Edge Cloud Platform.
• Respond to significant traffic incidents and lead network incidents, resolving edge cases and failure scenarios with your expertise in IP routing, particularly BGP.
• Write code that is performant, maintainable, clear, and concise and contribute to code reviews, improving the codebase and other team processes.
• Partner in the development and iteration of tools and automation systems that improve how we operate and build the network.
• Innovate new methods for monitoring network performance, focusing on the end‑user experience, and proactively address potential issues.
• Conduct continual deep‑dives of performance‑based analytics and close involvement with partner teams to maintain a performant global network.
• Advocate for the operational stability of the network by identifying opportunities and partnering with engineering teams to shape their roadmaps and software solutions.
• Mentor team members on the complexities of global routing, especially in an anycast‑heavy environment.

What We’re Looking For

• Experience in the protocols and practices that make up the fabric of the global internet, including TCP/IP, BGP, Anycast, and DNS.
• Experience in automation and coding using languages like Python or similar.
• Proficiency with Tier 1 Internet service providers, Internet exchanges and cloud providers.
• Ability to analyze internet traffic patterns across multiple dimensions using flow‑based tools.
• Experience working with alerting, monitoring and visibility tools such as Graphite/Grafana, Prometheus, or Splunk.
• Knowledge of cloud hosting solutions such as GCP, AWS, and Azure.
• Knowledge of DevOps practices and CI/CD pipelines (e.g., Git, Jenkins, Ansible).
• Understanding of Linux/Unix systems administration and network stack optimisation.
• Adept at knowledge sharing and creating comprehensive documentation to empower teams.
• Able to collaborate with cross‑functional teams to shape the technical roadmap, prioritising initiatives to optimise automation tooling and the network.

We’ll Be Super Impressed If You Have Experience In Any Of These

• Experience writing production‑level code using VCL or GO.
• Experience in network telemetry, including instrumenting infrastructure and collecting, processing, storing and analysing data.
• Experience working with geographically dispersed teams – previous remote work preferred.

Work Hours

This position will require you to work during scheduled hours from 0800 – 1700. This position will require you to be available during core business hours. It may also require occasional nights and weekends as necessary to support any on‑call coverage.

Work Location(s) & Travel Requirements

Fastly currently embraces a largely hybrid model for most roles which allows employees flexibility to split their time between the office and home. This position may require travel as required by your role or requested by your manager. London (Hybrid) UK, Remote.

Benefits

We care about you. Fastly works hard to create a positive environment for our employees, and we think your life outside of work is important too. We support our teams with great benefits that start on the first day of your employment with Fastly. Curious about our offerings? We offer a comprehensive benefits package designed to meet your needs. Our offerings may vary depending on the country where you work and are subject to change.

Fastly is committed to ensuring equal employment opportunity and to providing employees with a safe and welcoming work environment free of discrimination and harassment. Our employment decisions are based on business needs, job requirements and individual qualifications. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, family or parental status, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation or any other characteristic protected by applicable laws, regulations and ordinances.

Consistent with the Americans with Disabilities Act (ADA) and federal or state disability laws, Fastly will provide reasonable accommodations for applicants and employees with disabilities. If reasonable accommodation is needed to participate in the job application or interview process, to perform essential job functions, and/or to receive other benefits and privileges of employment, please contact your Recruiter or the Fastly Employee Relations team at candidateaccommodations@fastly.com or 501‑287‑4901.

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