The Senior Systems Engineer - Traffic Management will build and extend traffic management systems, collaborating with various teams to enhance Cloudflare's global network operations.
Available Locations: London, UK or Lisbon, Portugal
Role Summary
The Traffic Management is responsible for the systems that dynamically route traffic flows into, through, and from Cloudflare's global network.
We don't just manage one company's traffic; they manage traffic for numerous products and millions of customers, from individual websites to major enterprises. This team is at the heart of Cloudflare's mission to make the internet faster, safer, and more reliable.
Role Responsibilities
As a member of the team you will build and extend various traffic management and supporting systems. You will work closely with Network Engineering, Product Engineering, Network Strategy, and other teams to collaborate on ambitious initiatives to make the best use of Cloudflare's global network.
You will participate in all stages of the software development lifecycle: from designing and documenting systems, to writing code and automated tests, to planning, managing, and monitoring production software deployments. You will work with a wide range of technologies and programming languages, including Go, Python, Rust, eBPF, ClickHouse, Salt, PostgreSQL, Prometheus, Kubernetes, and more.
Our team at Cloudflare operates under a "Run What You Build" model. This means we are responsible for the health of our systems and actively participate in our team's on-call rotation as part of our operational duties.
Because you'll be solving problems of massive scale and significance, and shaping the future of reliability and performance on the Internet, you are a growth-oriented individual who enjoys being outside of your comfort zone. You are comfortable in a fast-paced but sensible work environment. You value curiosity and empathy and lead with these values.
Role Requirements
Must-Have Skills
Bonus Points
Role Summary
The Traffic Management is responsible for the systems that dynamically route traffic flows into, through, and from Cloudflare's global network.
We don't just manage one company's traffic; they manage traffic for numerous products and millions of customers, from individual websites to major enterprises. This team is at the heart of Cloudflare's mission to make the internet faster, safer, and more reliable.
Role Responsibilities
As a member of the team you will build and extend various traffic management and supporting systems. You will work closely with Network Engineering, Product Engineering, Network Strategy, and other teams to collaborate on ambitious initiatives to make the best use of Cloudflare's global network.
You will participate in all stages of the software development lifecycle: from designing and documenting systems, to writing code and automated tests, to planning, managing, and monitoring production software deployments. You will work with a wide range of technologies and programming languages, including Go, Python, Rust, eBPF, ClickHouse, Salt, PostgreSQL, Prometheus, Kubernetes, and more.
Our team at Cloudflare operates under a "Run What You Build" model. This means we are responsible for the health of our systems and actively participate in our team's on-call rotation as part of our operational duties.
Because you'll be solving problems of massive scale and significance, and shaping the future of reliability and performance on the Internet, you are a growth-oriented individual who enjoys being outside of your comfort zone. You are comfortable in a fast-paced but sensible work environment. You value curiosity and empathy and lead with these values.
Role Requirements
Must-Have Skills
- Minimum of 6 years of engineering experience with networking and/or distributed systems.
- Systems-level programming experience in Go, Python, Rust, C, or C++.
- Strong knowledge of networking protocols in Layers 3 and 4 of the OSI Model.
- Knowledge of HTTP, TLS, and CDN networks.
- Experience in implementing secure and highly-available distributed systems.
- Strong ability to debug issues in complex systems.
- Strong collaboration and communication skills across teams and functions.
- Experience participating in an on-call rotation.
Bonus Points
- Experience building or developing capabilities in the domain of traffic engineering including automated load balancing and traffic prioritization.
- Knowledge of statistical-analysis techniques and control theory.
- Knowledge of TCP/IP and Internet routing.
- Experience building tools and APIs.
Top Skills
Clickhouse
Ebpf
Go
Kubernetes
Postgres
Prometheus
Python
Rust
Salt
Similar Jobs at Cloudflare
Cloud • Information Technology • Security • Software • Cybersecurity
The Systems Engineer will design, build, and scale tools for domain management while ensuring stability and performance of systems. Responsibilities include monitoring production services and collaborating on technical requirements.
Top Skills:
DnsDnssecGitGitlabGitlab CiGoGrafanaJavaKubernetesOpenapiPostgresPrometheusRuby/RailsTypescript
Cloud • Information Technology • Security • Software • Cybersecurity
As a Senior Solutions Engineer, you'll support sales through technical advocacy, design solutions, and engage with customers to ensure successful adoption of Cloudflare's offerings, utilizing a broad understanding of internet technologies.
Top Skills:
AWSBash)Cybersecurity SolutionsJavaScriptMsOracleScripting Languages (Python
Cloud • Information Technology • Security • Software • Cybersecurity
The Senior Solutions Engineer will advocate for customers in the gaming industry, ensuring effective technical solutions and managing complex projects in a fast-paced environment.
Top Skills:
Anycast NetworksCloudflareCloudflare WorkersDdos MitigationEdge ComputingJavaScriptPythonRustTcpUdp
What you need to know about the Bristol Tech Scene
Along with Gloucester, Swindon and Bath, Bristol is part of the "Silicon Gorge" tech hub, a region in the U.K. renowned for its high-tech and research-driven industries, with a particular emphasis on sustainability and reducing environmental impact. As the European Green Capital, Bristol is home to 25,000 cleantech companies, including Baker Hughes and unicorn Ovo Energy. The city has committed to achieving net-zero emissions within the next decade.

