Field CTO Performance (e-commerce)

Posting Open Date: 2/12/26

Anticipated Posting Close Date*: 4/31/26

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

Field CTO - Performance (e-commerce) Remote US

Help Fastlys e-commerce and retail customers design implement and optimize solutions that drive measurable business impact and help close big deals. As a key member of the go-to-market team youll partner closely with Account Executives Solution Engineers and Customer Success to identify technical opportunities prove the value of Fastlys platform and guide customers through critical buying decisions.

Your work will directly influence major enterprise deals by providing technical strategy architectural credibility and proof through hands-on demos prototypes and performance outcomes.

Key Responsibilities

• Partner in Pre-Sales and Deal Acceleration
• Collaborate with Account Executives to understand customer business drivers technical challenges and success criteria.
• Define and deliver technical solutions that demonstrate Fastlys unique capabilities helping customers visualize the art of the possible.
• Build confidence in Fastlys platform by leading architectural discussions running proof-of-concepts and addressing objections that could slow or block deal progression.
• Quantify the impact of Fastlys solutions using data and performance insights to show clear ROI and business value in proposals and executive meetings.
• Contribute to RFPs and technical responses that directly support sales opportunities.
• Architect and Implement Performance Solutions
• Design and deliver end-to-end web performance improvements using Fastlys CDN advanced caching image optimization and modern web protocols.
• Assess customer architectures with RUM/synthetic tooling identifying bottlenecks and defining a data-driven improvement plan.
• Lead proof-of-concepts and migrations of critical workloads onto the Fastly platform.
• Align Performance with e-commerce & Business Strategy
• Act as a consultant to translate technical performance metrics into tangible business outcomes demonstrating how faster page loads or optimized checkout flows directly impact conversion rates cart abandonment and customer lifetime value.
• Collaborate with customer engineering product and leadership teams to ensure performance is a key consideration throughout the development lifecycle and is aligned with their commercial objectives.
• Solve performance challenges unique to high-traffic ecommerce and marketplace environments such as large product catalogs third-party payment provider delays dynamic content variability and the need for personalized experiences at scale.
• Lead Mentor and Innovate with an Edge-First Mindset
• Provide expert guidance and mentorship to customer engineering teams on web performance best practices helping them build a culture where performance is a shared responsibility.
• Lead proof-of-concepts and migrations of critical functionality to the Fastly platform such as implementing new caching strategies or moving logic to the edge with to enhance speed and resilience.
• Stay current with the evolution of the web platformincluding browsers protocols and metrics like Core Web Vitalsand feed that knowledge back into Fastlys product roadmap.
• Thought Leadership and Community Engagement
• Act as a public voice and thought leader in the web performance and ecommerce communities.
• Speak at industry-related conferences share expertise through blog posts and participate in community forums to build both your personal brand and Fastlys reputation as a leader in the field.
• Organize or participate in community events like meetups to foster a culture of knowledge-sharing and continuous learning.
• Measure Monitor and Drive Continuous Improvement
• Define and monitor performance budgets and SLAs to ensure a consistently fast experience for all users.
• Utilize a suite of observability tools (e.g. Fastly analytics WebPageTest Lighthouse RUM solutions) to measure report and visualize performance using data to guide all optimization efforts.
• Contribute to troubleshooting performance-related incidents and participate in post-mortems to build more resilient antifragile systems for our customers.

Qualifications and Experience

• 15 years of experience in web performance engineering systems architecture or frontend/backend optimization with hands-on experience on large-scale high-traffic ecommerce websites or marketplaces.
• Deep expertise in web performance metrics (Core Web Vitals TTFB rendering paths) and diagnostic tooling.
• Expertise in CDN configurations VCL or edge compute logic dynamic and static caching strategies cache invalidation and offloading. Familiarity with serverless and edge compute architectures is highly desired.
• Strong background in caching strategies image delivery modern protocols (HTTP/2 HTTP/3) and TLS optimization.
• Proven ability to connect technical improvements to business KPIs (conversion revenue retention).
• Consulting mindset with excellent communication and storytelling skills for both technical and executive audiences

Who You Are

• You are a deep technical expert with a strategic business mindset. You dont just solve performance problems; you connect technical optimizations directly to business outcomes like conversion retention and revenue.
• You are a seasoned consultant and mentor within the e-commerce and Retail industry. You excel at communicating complex technical concepts to diverse stakeholders and have a proven ability to guide both customer and internal engineering teams toward best practices.
• You are a systems thinker who sees the whole picture. You understand that modern e-commerce performance is a multi-factor problem encompassing everything from frontend rendering and third-party scripts to CDN configurations and backend infrastructure.
• You are driven by data and measurement. You have a hands-on approach to diagnostics using tools like RUM and synthetics to identify bottlenecks and prove the impact of your work.
• You are a technology leader and innovator. You are passionate about sharing your knowledge by speaking at conferences writing organizing meetups and contributing to industry-wide projects.
  
  

Preferred Qualifications:

• Bachelors degree or higher in Computer Science Engineering Information Security or a related field.
  
  

Work Hours:

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

Work Location(s) & Travel Requirements:

This position is open to Hybrid And Remote Work Locations.

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

There is a strong preference for Hybrid near a local office. However we may be willing to consider remote candidates within the US.

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

Salary:

The estimated range for On-Target Earnings for this role is $351348 to $421618. On-Target Earnings consists of a combination of annual base pay and sales compensation variable target. The standard pay split for this role (i.e. base pay vs. variable target %) is 75%/25%.

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

This role is eligible to participate in Fastlys global sales compensation plan and may participate in Fastlys equity program.

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 10 paid local holidays 11 paid company wellness days.