Principal Platform Security Architect (Edge Systems, Cloud & Container Infrastructure)

San Francisco, CA - USA

Monthly Salary: $ 228280 - 273936

Posted on: 9 days ago

Vacancies: 1 Vacancy

Job Summary

Fastly helps people stay better connected with the things they love. Fastlys edge cloud platform enables customers to create great digital experiences quickly securely and reliably by processing serving and securing our customers applications as close to their end-users as possible at the edge of the Internet. The platform is designed to take advantage of the modern internet to be programmable and to support agile software development. Fastlys customers include many of the worlds most prominent companies including Vimeo Pinterest The New York Times and GitHub.

Were building a more trustworthy Internet. Come join us.

Posting Open Date: November 5 2025

Anticipated Posting Close Date*: December 5 2025

*Job posting may close early due to the volume of applicants.

Principal Platform Security Architect (Edge Systems Cloud & Container Infrastructure)

As a Principal Platform Security Architect at Fastly you will help ensure we provide a secure edge for one of the biggest online platforms in the world handling extensive amounts of traffic at very low latency. Fastlys Security Architecture Team fosters security throughout all areas of Fastlys applications and infrastructure. Fastly believes that security is everyones responsibility and you will be empowering all of Fastly to live up to that responsibility. Qualified candidates will excel at analyzing the design of our core networks systems and cloud infrastructure to identify complex threat scenarios and influence prioritization of mitigations.

This is a role which has a high impact on human lives. You will be supported by a friendly security team where you can learn and develop. We check our egos at the door. Youll make sure our customers benefit from a service built to the highest security standards in the industry. We pride ourselves in our involvement in the larger security community and encourage our team to present at network and security conferences and participate in the open source community. We are a distributed security team with the commitment and tools in place to make it work.

What Youll Do:

Shape Fastlys overall security strategy leveraging the security teams collective expertise to define capabilities that reduce organizational risk and enhance resilience against cyber-attacks.
Conduct architecture and design reviews as part of Fastlys threat modeling processes working closely with engineering teams to embed secure-by-design principles into production systems and new features.
Lead the security design and oversight of Fastlys cloud infrastructure container platforms core networking and low-level systems ensuring controls effectively mitigate identified threats maintain operational integrity over time generate alerts on failures and automatically remediate when appropriate.
Investigate and assess new threats and attack vectors collaborating with system owners to implement detection mechanisms mitigation strategies and remediation workflows.
Become a subject-matter expert in Fastlys technology stack proactively identifying and addressing gaps in security posture based on emerging threats and trends.
Partner with platform engineering teams to enhance build integrity secure the software supply chain and verify deployment provenance across systems.

What Were Looking For:

10 years of relevant experience and a Bachelors degree in Computer Science or equivalent.
Proven leadership in security strategy including influencing organizational direction mentoring engineers on secure design principles and embedding a security-first mindset across teams.
Extensive experience performing threat modeling and secure design reviews translating identified risks into actionable security controls for both new and existing systems.
Experience designing and reviewing secure architectures for distributed high-performance systems ensuring resiliency scalability and adherence to security best practices.
Deep expertise across the full information security stack with hands-on experience in security engineering or security research for large-scale production systems.
Proven ability to implement and manage cloud governance controls such as AWS Service Control Policies (SCPs) IAM roles and permission boundaries and GCP organization policies and constraints to meet security and compliance objectives.
Track record securing Kubernetes environments including hardening multiple CNIs integrating cloud-native runtime security tooling and implementing container image scanning and compliance workflows.
Proven expertise in cloud and infrastructure security including Kubernetes Terraform Enterprise/Sentinel Open Policy Agent (OPA) AWS GCP BGP Anycast and Secure Boot.
Advanced Linux administration experience at scale including knowledge of intrusion and manipulation techniques system hardening process isolation and security best practices.
Excellent communication and collaboration skills capable of engaging with both technical teams and non-technical stakeholders to articulate risks trade-offs and security recommendations.

Work Hours:

This position will require you to be available during core business hours.

Work Location(s) & Travel Requirements:

This position is open to the following preferred office locations:

New York NY
San Francisco CA
Denver CO

Fastly currently embraces a largely hybrid model for most roles which allows employees flexibility to split their time between the office and home.

This position may require travel as required by your role or requested by your manager.

SF / LA Fair Chance Ordinance Statement

Pursuant to the San Francisco Fair Chance Ordinance and the Los Angeles Fair Chance Initiative for Hiring Ordinance we will consider for employment qualified applicants with arrest and conviction records.

Salary:

The estimated salary range for this position is $228280 to $273936.

Starting salary may vary based on permissible non-discriminatory factors such as experience skills qualifications and location.

This role may be eligible to participate in Fastlys equity and discretionary bonus programs.

Benefits:

We care about you. Fastly works hard to create a positive environment for our employees and we think your life outside of work is important too. We support our teams with great benefits that start on the first day of your employment with Fastly. Curious about our offerings

We offer a comprehensive benefits package including medical dental and vision insurance. Family planning mental health support along with Employee Assistance Program Insurance (Life Disability and Accident) a Flexible Vacation policy and up to 18 days of accrued paid sick leave are there to help support our employees. We also offer 401(k) (including company match) and an Employee Stock Purchase Program. For 2025 we offer 11 paid local holidays 11 paid company wellness days.

Why Fastly

We have a huge impact.Fastly is a small company with a big reach. Not only doour customershave a tremendous user base but we also support a growing number of open source projects and of code employees are encouraged to share causes close to their heart with others so we can help lend a supportive hand.
We love distributed teams. Fastlys home-base is in San Francisco but we have multiple offices and employees sprinkled around the globe. As a new hire you will be able to attend our IN-PERSON new hire orientation in our San Francisco office! It is an exciting week-long experience that we offer to new employees to build connections with colleagues across Fastly participate in hands-on learning opportunities and immerse yourself in our culture firsthand.
We value diversity.Growing and maintaining our inclusive and diverse team matters to us. We are committed to being a company where our employees feel comfortable bringing their authentic selves to work and have the ability to be successful -- every day.
We are passionate.Fastly is chock full of passionate people and were not one size fits all. Fastly employs authors pilots skiers parents (of humans and animals) makeup geeks coffee connoisseurs and more. We love employees for who they are and what they are passionate about.

Were always looking for humble sharp and creative folks to join the Fastly team. If you think you might be a fit please apply! A fully completed application and resume or CV are required when applying.

All job applications must be submitted through our official careers site at We will never request sensitive information such as your Social Security number bank account or credit card information during the application process. All official communication will come from an @ or @ email address.

Fastly is committed to ensuring equal employment opportunity and to providing employees with a safe and welcoming work environment free of discrimination and harassment. Our employment decisions are based on business needs job requirements and individual qualifications. All qualified applicants will receive consideration for employment without regard to age ancestry color family or medical care leave gender identity or expression genetic information marital status medical condition national origin family or parental status physical or mental disability political affiliation protected veteran status race religion sex (including pregnancy) sexual orientation or any other characteristic protected by applicable laws regulations and ordinances.

Consistent with the Americans with Disabilities Act (ADA) and federal or state disability laws Fastly will provide reasonable accommodations for applicants and employees with disabilities. If reasonable accommodation is needed to participate in the job application or interview process to perform essential job functions and/or to receive other benefits and privileges of employment please contact your Recruiter or the Fastly Employee Relations team at or .

Fastly collects and processes personal data submitted by job applicants in accordance with ourPrivacy Policy. Please see our privacy notice for job applicants.

Required Experience:

Staff IC