Software Engineer - DNS
At Cloudflare, we have our eyes set on an ambitious goal: to help build a better Internet. Today the company runs one of the world’s largest networks that powers more than 10 trillion requests per month. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare have all web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was recognized by the World Economic Forum as a Technology Pioneer and named to Entrepreneur Magazine’s Top Company Cultures list.
We realize people do not fit into neat boxes. We are looking for curious and empathetic individuals who are committed to developing themselves and learning new skills, and we are ready to help you do that. We cannot complete our mission without building a diverse and inclusive team. We hire the best people based on an evaluation of their potential and support them throughout their time at Cloudflare. Come join us!
About the department
Cloudflare’s Engineering Team builds and runs the internal tools that builds and runs our software. The Engineering Team is split into two groups: one handles product development and the other handles operations. Product development covers both new features and functionality and scaling our existing software to meet the challenges of a massively growing customer base. The operations team handles one of the world’s largest networks with data centers in 102 cities worldwide.
About the role
Cloudflare runs one of the largest DNS infrastructures in the world. We run DNS for over 12 million Internet properties globally. Many of our DNS systems are custom built internally, so we’ve developed a lot of proprietary technology that operates at scale, and we are iterating constantly to meet new scaling and reliability requirements.
In this role, you will be part of a small elite team that builds and maintains one of the core Cloudflare systems. You will maintain and expand our DNS infrastructure and implement features for our customers. We like to think outside the box and come up with novel approaches. The team is split between London and San Francisco offices.
- Knowledge of DNS protocol
- Proven systems programming skills in any of Go, C/C++, Rust, Lua, Python
- Ability to quickly analyze situations and devise solutions
- Knowledge of TCP/IP and Internet Routing
- Excellent troubleshooting skills involving breaking down complex systems and finding root cause.
- Open source contributions is a big bonus
- Knowledge of DNSSEC and various security extensions to DNS
- Knowledge of HTTP, TLS and CDN Networks
- Knowledge of building Data Analytics pipeline
- Experience building Distributed Systems
- Experience with large scale Monitoring Systems including metric collection, metric pipeline, visualization, trend/statistical analysis etc
- Good communicator, we work with many other groups and like to tell others about what we do in blogs, talks, and meetups.
What Makes Cloudflare Special?
We’re not just a highly ambitious, large-scale technology company. We’re a highly ambitious, large-scale technology company with a soul. Fundamental to our mission to help build a better Internet is protecting the free and open Internet.
Project Galileo: We equip politically and artistically important organizations and journalists with powerful tools to defend themselves against attacks that would otherwise censor their work, technology already used by Cloudflare’s enterprise customers--at no cost.
Project Athenian: We created Athenian Project to ensure that state and local governments have the highest level of protection and reliability for free, so that their constituents have access to election information and voter registration.
Path Forward Partnership: Since 2016, we have partnered with Path Forward, a nonprofit organization, to create 16-week positions for mid-career professionals who want to get back to the workplace after taking time off to care for a child, parent, or loved one.
Sound like something you’d like to be a part of? We’d love to hear from you!
Cloudflare is proud to be an equal opportunity employer. We are committed to providing equal employment opportunity for all people and place great value in both diversity and inclusiveness. All qualified applicants will be considered for employment without regard to their, or any other person's, perceived or actual race, color, religion, sex, gender, gender identity, gender expression, sexual orientation, national origin, ancestry, citizenship, age, physical or mental disability, medical condition, family care status, or any other basis protected by law. We are an AA/Veterans/Disabled Employer.
Cloudflare provides reasonable accommodations to qualified individuals with disabilities. Please tell us if you require a reasonable accommodation to apply for a job. Examples of reasonable accommodations include, but are not limited to, changing the application process, providing documents in an alternate format, using a sign language interpreter, or using specialized equipment. If you require a reasonable accommodation to apply for a job, please contact us via e-mail at email@example.com or via mail at 101 Townsend St. San Francisco, CA 94107.
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