Senior SRE – Networks

Fastly; United States; Hybrid; USD 122,000 - 203,000; Full time

Benefits offered by this job

Hybrid work model

Travel opportunities

Job summary

Fastly’s Senior SRE – Networks role is to build, operate, and scale the global edge network with a strong focus on routing, BGP, and end-user performance. You’ll craft automation, develop monitoring tools, and mentor teammates in a highly collaborative environment.

Ideal candidates bring deep TCP/IP/BGP/Anycast/DNS expertise, Python automation, and experience with cloud providers (GCP/AWS/Azure), along with DevOps and observability tooling.

Qualifications

• Experience with global internet routing and network protocols.
• Automation and coding experience (Python or similar).
• Proficiency with large-scale network providers and cloud platforms.
• Ability to analyze traffic patterns with flow-based tools.
• Familiarity with monitoring/observability tools (Grafana/Prometheus/Splunk).
• Knowledge of DevOps practices and CI/CD pipelines.

Responsibilities

• Build, operate, and maintain Fastly’s global edge network footprint.
• Lead network incidents and traffic analysis, focusing on IP routing and BGP.
• Write clean, maintainable code and participate in reviews.
• Develop tools and automation to improve network operations.
• Monitor network performance with a focus on end-user experience.
• Collaborate with cross-functional teams to shape roadmaps and tooling.
• Mentor team members on global routing complexities.

Skills

TCP/IP

BGP

Anycast

DNS

Python

Automation

Cloud providers

CI/CD

Git

Jenkins

Ansible

Linux

Documentation

Collaboration

Tools

Graphite/Grafana

Prometheus

Splunk

GCP

AWS

Azure

Job description

Headquarters: United Kingdom (Remote)

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.

We’re building a more trustworthy Internet. Come join us.

Senior SRE – Networks

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 principals 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.

• Response 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.

• Continual deep-dive 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 in 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 across cloud hosting solutions (i.e., GCP, AWS and Azure).

• Knowledge of DevOps practices and CI / CD pipelines (ie. 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, prioritizing initiatives to optimize 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 analyzing 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.

This position has one opening and can be hired in the following locations:

• 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.

Why Fastly?

• We have a huge impact.Fastly is a small company with a big reach. Not only do our customers have a tremendous user base, but we also support a growing number of open source projects and initiatives. Outside of code, employees are encouraged to share causes close to their heart with others so we can help lend a supportive hand.

• We value diversity.Growing and maintaining our inclusive and diverse team matters to us. We are committed to being a company where our employees feel comfortable bringing their authentic selves to work and have the ability to be successful — every day.

• We are passionate.Fastly is chock full of passionate people and we’re not ‘one size fits all’. Fastly employs authors, pilots, skiers, parents (of humans and animals), makeup geeks, coffee connoisseurs, and more. We love employees for who they are and what they are passionate about.

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 [e-mail] or 501-287-4901.

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