Principal Security Engineer (Cryptography & PKI)

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!

Location(s) Available: Bengaluru About The Team Join Cloudflare’s Security Architecture Team with the following with the foll focus areas :

• Strategic Alignment: Translates the Organisations Cyber risk tolerance into specific technical blueprints and implements controls/prescriptive policies in mitigation/managing or remediating these risks
• Preventative Focus: Focuses on "shifting left" to fix architectural flaws before they become bigger risks or cost
• Technical Consulting: Acts as internal subject matter experts for Procurement (TPRM) and Engineering teams.

About The Role/What You’ll Do

• Provide input on technical security requirements for new infrastructure and engineering initiatives.
• Assist with documentation and maintenance of the corporate security architecture blueprints.
• Participate in the design of robust PKI hierarchies (Root CAs, Intermediate CAs, Issuing CAs) and certificate policies, selecting appropriate hardware (HSMs) and software for scalable, secure deployments.
• Provide security guidance and review of the deployment of encryption solutions across systems, applications, and networks.
• Provide security guidance and review of the end-to-end lifecycle of cryptographic keys and digital certificates, including generation, secure storage, rotation, usage, backup, revocation and destruction.
• Conduct analysis of existing encryption and management solutions to find weaknesses and identify gaps.
• Ensure encryption implementations meet industry standards (e.g., NIST, FIPS) and compliance mandates (e.g., GDPR, HIPAA).
• Document security requirements and architectural decisions.
• Assist with defining security policies and standards, enforcing best practices, conducting risk assessments, and ensuring compliance with regulations.
• Work with CISO, IT teams, developers, and engineers to implement secure designs.

Requirements

• Either advanced studies in Cybersecurity, Computer Science, Information Systems, or similar
• Excellent written and verbal communication skills, including the ability to effectively collaborate with technical and senior business staff and management.
• 12+ years of experience in information security, with 7+ years focused on applied cryptography and Public Key Infrastructure (PKI).
• Expert-level knowledge of cryptographic primitives, algorithms (AES, RSA, ECC), hashing functions, and digital signature standards.
• Proven experience designing and deploying Hardware Security Modules (HSMs) and enterprise Key Management Systems (KMS).
• Strong understanding of regulatory and compliance frameworks related to data protection and packaging

Preferred

• Certifications: CISSP, CISM, or CCSP.
• Experience with cloud-native KMS solutions (e.g., AWS KMS, Azure Key Vault, GCP Cloud KMS).
• Worked on similar organisations in the past as Cloudflare

Fraud Alert: Do not fall victim to recruitment fraud. Cloudflare never charges application fees or requires candidates to purchase third-party certifications or training as a condition of employment. All official communication comes strictly from @cloudflare.com email addresses. 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.