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: Austin, TX (Hybrid)

About the Team

Cloudflare’s Cloud Email Security (CES) service builds advanced technology focused on the source of 95% of data breaches on the internet: phishing.

Hunting for bad actors on the internet is an intellectual and technical challenge. We hunt at scale with web crawling, machine learning, computer vision, petabytes of data, and a global network of sensors.

All of this technology delivers a comprehensive email, network and web protection layer around each of our customers. Customers know that with Cloudflare CES solution deployed their users won’t enable a hacker to gain a foothold that results in a breach of their systems.

Come and join an engineering team that builds extensible, reliable, scalable web-based, and data processing applications that our customers count on every second of the day.

RESPONSIBILITIES

Create the product’s subsystems and key components by applying up-to-date expertise in Software Engineering to define, design and create world-class implementations.
Collaborate with other senior engineers to improve the overall system at the architectural, design, and implementation levels.
Design and implement new features for our cloud-based email gateway solution that empowers Fortune 1000 customers.
Design and implement forward-looking portions of the system to execute a long-term product vision.
Work with large scale data systems in both online/streaming and offline/batch fashions
Design and implement revisions to areas of the system to enhance key features such as performance, reliability, scalability, or add new functionality

MIN REQUIREMENTS:

~5+ years of experience designing and implementing software systems
Advanced ability to design and implement software systems in Java.
Someone who enjoys security work focused on email detections that identify and protect our users.
Distributed systems experience in a Unix environment

PREFERRED:

BS/MS in Computer Science or similar engineering discipline
Strong software engineering skills and substantial expertise in additional programming and scripting languages: Rust, Python, and shell scripting
Experience with SMTP
Significant experience in networking, security, cryptography, malware analysis, data analysis, high-reliability clusters, statistics
Detailed understanding of object-oriented design practices.
Expert who specializes in big data analysis and design and construction of large-scale multi-tier systems using open-source technologies
Recent development or architectural leadership experience with large-scale data systems, streaming analytics.
Experience with continuous integration and delivery environments and agile methodologies.
Experience developing, deploying, maintaining applications using public cloud providers (AWS/GCP/Azure)

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: Since 2014, we've equipped more than 2,400 journalism and civil society organizations in 111 countries 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: In 2017, we created the 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. Since the project, we've provided services to more than 425 local government election websites in 33 states.

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.

Software Engineer - Email Security