Senior Principal Engineer Platform Engineering

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 GitHub Yelp Paramount and JetBlue.

Were building a more trustworthy Internet. Come join us.

Posting Open Date: Reposted March 30 2026

Anticipated Posting Close Date*: April 20 2026

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

Senior Principal Engineer Platform Engineering

Fastlys Platform Engineering team builds the foundations that enable engineers to ship quickly safely and reliably at scale. As a Senior Principal Engineer you will set technical direction and lead crossorganizational initiatives that strengthen our platform developer experience and operational excellence. Youll partner closely with Engineering peers to remove friction standardize best practices and deliver paved roads that accelerate product teams. This is a highly crossfunctional and hands-on role representing the Platform Engineering org reporting to the Senior Director of Engineering.

What Youll Do:

• Lead architecture and technical direction for Platform Engineering initiatives spanning build deploy runtime observability Security and developer experience
• Partner with Engineering SRE Security and Product teams to align roadmaps priorities and success metrics across the company
• Drive crossorg programs from concept to delivery (e.g. service templates/golden paths CI/CD modernization reliability and cost efficiency improvements)
• Define and evolve platform standards (APIs operational readiness SLOs/SLAs incident learnings) and ensure adoption through tooling and enablement
• Mentor and amplify senior engineers and tech leads; raise the bar for design reviews technical writing and engineering rigor
• Communicate progress risks and decisions clearly to stakeholders and leadership; represent Platform Engineering in technical forums

What Were Looking For:

• 12 years of related professional software engineering experience including designing and operating distributed systems in production
• Demonstrated success leading complex crossfunctional technical initiatives with broad organizational impact
• Deep expertise in at least two of: cloud infrastructure Kubernetes/container platforms CI/CD systems networking/service connectivity observability security developer tooling
• Strong systems design and architecture skills with a pragmatic approach to tradeoffs risk management and incremental delivery
• Excellent written and verbal communication; ability to influence without authority and align diverse stakeholders
• Commitment to building diverse and inclusive teams and an environment where engineers can do their best work

Well be super impressed if you have experience in any of these:

• Experience building internal developer platforms or paved roads at scale (e.g. service catalogs selfservice infrastructure standardized delivery pipelines)
• Background in highperformance networking/edge/CDN systems or globally distributed traffic platforms
• Strong SRE practices: SLOs error budgets incident response and continuous improvement loops
• Experience with infrastructureascode (e.g. Terraform) policyascode and security automation
• Track record of driving adoption through enablement: docs workshops office hours and partner engagement

Work Hours:

• This position will require you to be available during core business hours and occasional nights and weekends as needed for on call support

Work Location(s) & Travel Requirements:

The preferred hybrid locations for this position are:

• San Francisco CA
• Denver CO
• New York NY

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

We are also willing to consider highly qualified remote candidates in the United States.

This position will require travel as required by your manager.

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 $287570 to $345084.

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 2026 we offer 11 paid local holidays 12 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 ofopen 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 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 .

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