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Senior Software Engineer, Durable Objects (DO) - London, UK image - Rise Careers
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Senior Software Engineer, Durable Objects (DO) - London, UK

About Us

At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have 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 named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company. 

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! 

Available Locations: London, UK

About the Department

Emerging Technologies & Incubation (ETI) is where new and bold products are built and released within Cloudflare. Rather than being constrained by the structures which make Cloudflare a massively successful business, we are able to leverage them to deliver entirely new tools and products to our customers. Cloudflare’s edge and network make it possible to solve problems at massive scale and efficiency which would be impossible for almost any other organization.

What you'll do

The Durable Objects (DO) and D1 team is responsible for DO, Cloudflare's distributed coordination API with strongly consistent storage, and D1, Cloudflare's first SQL database optimized for the edge. In this role, you will work with a top-notch engineering team to expand Cloudflare's capabilities by ensuring continual reliability, maintaining best-in-class performance, and implementing new features and functionality.

You will own your code from inception to release, delivering solutions at all layers of the software stack to empower Cloudflare customers. On any given day, you might write a design document that outlines how you plan to solve a specific problem, modify how R2 Storage processes requests, or fix a bug in how our user experience renders. You can expect to interact with a variety of languages and technologies including, but not limited to JavaScript, Typescript, Rust, and C++.

Examples of desirable skills, knowledge and experience

  • Min 5 years experience working with distributed systems or developing on cloud platforms.
  • Experience managing high volume software applications.
  • Solid understanding of computer science fundamentals including data structures, algorithms, and object-oriented or functional design.
  • Knowledge of at least one modern strongly-typed programming language such as Go, Java, C#, Rust, or C++.

Bonus Points

  • Previous experience working on database internals such as a SQL query planner. 
  • Deep understanding of the web and technologies such as web browsers, HTTP, JavaScript and WebAssembly.
  • Experience working in low-latency real time environments such as game streaming, game engine architecture, high frequency trading, payment systems.
  • Experience debugging, optimizing and identifying failure modes in a large-scale Linux-based distributed system.

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.

Athenian Project: 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.

1.1.1.1: We released 1.1.1.1 to help fix the foundation of the Internet by building a faster, more secure and privacy-centric public DNS resolver. This is available publicly for everyone to use - it is the first consumer-focused service Cloudflare has ever released. Here’s the deal - we don’t store client IP addresses never, ever. We will continue to abide by our privacy commitment and ensure that no user data is sold to advertisers or used to target consumers.

Sound like something you’d like to be a part of? We’d love to hear from you!

This position may require access to information protected under U.S. export control laws, including the U.S. Export Administration Regulations. Please note that any offer of employment may be conditioned on your authorization to receive software or technology controlled under these U.S. export laws without sponsorship for an export license.

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 hr@cloudflare.com or via mail at 101 Townsend St. San Francisco, CA 94107.

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CEO of Cloudflare
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Matthew Prince
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Cloudflare is an American company, headquartered in San Francisco, California. They provide content delivery network services, cloud cybersecurity, DDoS mitigation, Domain Name Service, and ICANN-accredited domain registration services.

122 jobs
BADGES
Badge Future MakerBadge InnovatorBadge Rapid Growth
CULTURE VALUES
Mission Driven
Inclusive & Diverse
Collaboration over Competition
Growth & Learning
Transparent & Candid
Rise from Within
Diversity of Opinions
Work/Life Harmony
BENEFITS & PERKS
Maternity Leave
Paternity Leave
Paid Holidays
Paid Sick Days
Paid Time-Off
Medical Insurance
Dental Insurance
Mental Health Resources
Life insurance
Disability Insurance
Health Savings Account (HSA)
Flexible Spending Account (FSA)
FUNDING
TEAM SIZE
DATE POSTED
July 28, 2024

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