Senior Software Engineer Security Platform

About Us

At Cloudflare we are on a mission to help build a better Internet. Today the company runs one of the worlds 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 Magazines Top Company Cultures list and ranked among the Worlds Most Innovative Companies by Fast Company.

At Cloudflare were not looking for people who wait for a polished roadmap; were looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a normalized problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration leveraging AI to ship faster today to make it better tomorrow while ensuring that every improvement no matter how small is shared across the team to lift everyone up. If youre the type of person who values curiosity over bureaucracy and that AI is a partner in solving tough problems to keep the Internet moving forward youll fit right in.

Available Locations

• Atlanta US
• Austin US
• Denver US
• New York US
• San Francisco US
• Seattle US
• Washington DC US
• Canada

About the Role

The Security Platform team is an infrastructure/developer tools group tasked with building and operating powerful resilient and secure infrastructure and systems that enable other engineering teams to deliver products to our customers efficiently and securely. We are responsible for secrets management internal certificate authorities/PKI machine and workload identity and more. We are not a policy audit or compliance team but rather an infrastructure engineering/software development one.

Responsibilities

Youll build and operate secure and resilient distributed systems for secrets and key management running across our network that spans more than 310 cities in over 120 countries. Our focus is strengthening/re-architecting internal PKI and machine/workload identity. Youll run and support the systems we build both in an operational sense and by helping other internal developers use them. You will participate in the On Call rotation for emergency incident response. Youll consult on the design and architecture of new systems and products to ensure they are built securely and use our services correctly.

Required skills

• Production software development: Experience designing building and maintaining production software in Go C C Rust or comparable languages. We value systems-oriented engineering experience not familiarity with a particular language alone.
• Production infrastructure ownership: Experience both building and operating critical production services or infrastructure including debugging failures recovering service and improving reliability. Ability to reason about distributed systems and their failure modes.
• Linux/UNIX proficiency: Hands-on experience administering and troubleshooting Linux/UNIX systems in production.
• Security engineering: Experience developing or operating software or systems designed to provide security capabilities or enforce security boundaries. This can be part of a broader software or infrastructure engineering role; a dedicated security job title is not required.
• Applied cryptography: A working understanding of symmetric and asymmetric cryptography and public key infrastructure (PKI) sufficient to make sound implementation choices using established libraries and protocols. Experience designing new cryptographic algorithms is not required.

Bonus/nice-to-have skills

• Experience with secrets management key management internal certificate authorities/PKI or machine and workload identity.
• Experience managing the lifecycle of keys certificates or credentials including issuance rotation expiration and revocation.
• Familiarity with HashiCorp Vault OpenBao or similar systems.
• Experience with hardware-backed security such as HSMs TPMs or trusted execution environments.
• Familiarity with Go Python or Salt.
• Contributions to open source security systems software or distributed systems projects.

You do not need experience with every technology listed above. We welcome candidates with strong software and infrastructure engineering fundamentals and related security experience.

Compensation

Compensation may be adjusted depending on work location.

• For California based hires: Estimated annual salary of $194000 - $266000
• For Colorado based hires: Estimated annual salary of $168000 - $231000
• For New York based hires: Estimated annual salary of $185000 - $254000
• For Washington based hires: Estimated annual salary of $185000 - $254000
• For Washington DC based hires: Estimated annual salary of $185000 - $254000
• For Canada based hires: Estimated annual salary of $150000 - $206000

Applications will be accepted until December 25 2026.

Equity

This role is eligible to participate in Cloudflares equity plan.

Benefits

Cloudflare offers a complete package of benefits and programs to support you and your family. Our benefits programs can help you pay health care expenses support caregiving build capital for the future and make life a little easier and fun! The below is a description of our benefits for employees in the United States and benefits may vary for employees based outside the U.S.

Health & Welfare Benefits

• Medical/Rx Insurance
• Dental Insurance
• Vision Insurance
• Flexible Spending Accounts
• Commuter Spending Accounts
• Fertility & Family Forming Benefits
• On-demand mental health support and Employee Assistance Program
• Global Travel Medical Insurance

Financial Benefits

• Short and Long Term Disability Insurance
• Life & Accident Insurance
• 401(k) Retirement Savings Plan
• Employee Stock Participation Plan

Time Off

• Flexible paid time off covering vacation and sick leave
• Leave programs including parental pregnancy health medical and bereavement leave

What Makes Cloudflare Special

Were not just a highly ambitious large-scale technology company. Were 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 weve equipped more than 2400 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 Cloudflares 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 weve 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. Heres the deal - we dont 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 youd like to be a part of Wed love to hear from you!

Please note that applicants who progress to the offer stage of the interview process may be asked to attend an in-person interview within one of the Cloudflare Offices or Cloudflare Hubs. More details about this will be available at that stage of the interview process.

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 persons 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 or via mail at 101 Townsend St. San Francisco CA 94107.

Required Experience:

Senior IC