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! 

Position Overview:

We are seeking a skilled and experienced Senior Engineering Manager to lead our API Shield product engineering team and Application Security Platform team. The ideal candidate will have a strong background in both technical leadership and domain expertise in API security, and platform and service. Candidates with prior research, data science, and fraud detection methodologies are strongly preferred.

About the team:

The API Shield team at Cloudflare is a diverse and talented group of engineers and data scientists dedicated to staying ahead of emerging threats and trends in the field API Security and protecting our clients and their customers from attack and fraudulent activities. Our team operates at the intersection of cutting-edge technology and domain expertise, leveraging advanced machine learning algorithms, data science and analytics, and engineering to develop innovative solutions for API Security. We foster a collaborative and inclusive work environment where creativity and critical thinking are encouraged, and where every team member has the opportunity to make a meaningful impact.

Responsibilities:

• Lead and manage a multidisciplinary team of engineers, data scientists, and security experts that are responsible for developing and maintaining Cloudflare’s industry leading API Shield product, and all its encompassing systems and tools.
• In addition, you will lead a newly formed cross-functional team within Cloudflare’s Application Security organization. The new team is to expand on an innovative system the API Shield team has built and make it into a cross-team platform to support and serve other products needs in the Application Security organization.
• Collaborate with cross-functional teams including product management, security researcher and analysts to define and prioritize technical initiatives that enhance our API Shield product capabilities.
• Drive the design, implementation, and optimization of scalable, high-performance systems the teams are responsible for.
• Provide technical guidance and mentorship to team members, fostering a culture of continuous learning and innovation.
• Oversee the end-to-end development lifecycle, from requirements gathering and design to deployment and monitoring, ensuring timely delivery of high-quality solutions.
• Stay abreast of the latest developments in security, data science, and fraud detection technologies, and incorporate best practices and emerging trends into our technical strategy.
• Collaborate with external partners and stakeholders to identify opportunities for collaboration and technology integration.

Requirements:

• At minimum, Bachelor's degree or higher in Computer Science, Engineering, or a related field. M.S. and Ph.D degrees are highly desirable. 
• 8+ years of experience in software engineering, with at least 4 years in a leadership or management role.
• Strong background in API security, data science, and fraud detection, with hands-on experience in designing and implementing security and fraud detection algorithms and systems.
• Proficiency in programming languages such as Python, Go, or Rust, and experience with data analysis and machine learning frameworks such as TensorFlow, PyTorch, or scikit-learn.
• Experience with big data technologies such as Kafka, and familiarity with Clickhouse.
• Excellent communication and interpersonal skills, with the ability to effectively collaborate with cross-functional teams and communicate technical concepts to non-technical stakeholders.
• Proven track record of successfully leading and motivating teams in a fast-paced, dynamic environment.

Preferred Qualifications:

• Advanced degree (Master's or Ph.D.) in Computer Science, Engineering, Statistics, or a related field.
• Experience with building and deploying production-grade machine learning models at scale.
• Familiarity with regulatory compliance requirements related to fraud detection and data privacy (e.g., GDPR).
• Experience working in the fintech, e-commerce, or cybersecurity industries.

Location: London, United Kingdom

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.