Senior Data Scientist, Fastly
Business Intelligence
$155.4-186.4k
+ Employee Stock Purchase Program
We do not support relocation
2 days a week in office
Edge cloud platform
Be an early applicant
Edge cloud platform
1001+ employees
Be an early applicant
$155.4-186.4k
+ Employee Stock Purchase Program
We do not support relocation
2 days a week in office
1001+ employees
Company mission
To build a better internet — a safe place where good can thrive.
Role
Who you are
- Significant professional experience in a related technical or ecommerce field, applying data science and AI techniques to solve diverse business problems - Most Senior level folks at Fastly have at least 5 years of related experience
- Demonstrated expertise building tools to support complex and highly impactful quantitative analysis of broad operational business questions
- Demonstrated experience as a technical leader - leading full lifecycle initiatives, driving long term roadmaps, collaborating with cross-functional stakeholders, influencing best practices, mentoring team members, etc
- Strong programming skills in SQL and Python and experience with data science and AI libraries (PyTorch, TensorFlow, scikit-learn, Hugging Face)
- Expertise in statistical analysis, machine learning algorithms, experimentation methodologies, large language models, and generative AI frameworks
- Experience mentoring and leading others in data science skills and initiatives
- Experience working with modern data stacks, including Airflow, Fivetran, dbt, BigQuery, Vertex AI, and Looker
Desirable
- Master's or PhD in Computer Science, Statistics, Mathematics, or a related quantitative field
- Related CDN industry experience
- Experience in small to mid-size organizations where you have hands on experience and decision making input on building and expanding the data ecosystem
- Experience deploying and maintaining production machine learning systems
- Experience with specialized data types such as natural language, time-series, or recommendation systems
- Implementing and fine-tuning large language models or other generative AI systems for specific business applications
- Building AI-powered products or features that have been successfully deployed to end users
- Experience with prompt engineering and RAG systems
- Contributions to open-source AI projects or research publications in machine learning or generative AI
- Proficiency with AI services on cloud platforms (AWS Bedrock, GCP Vertex AI, Azure OpenAI)
What the job involves
- Join our high impact Analytics team as a Senior Data Scientist, where you’ll shape the future of data-driven decision-making at Fastly
- In this role, you’ll deliver actionable deep insights to solve critical business challenges
- Over time, you’ll transition into more advanced data science work, such as predictive modeling and machine learning, to unlock even greater value
- As a senior member on the team, you’ll mentor colleagues, set best practices, and elevate how we use data to drive success
- This is your opportunity to make a meaningful impact while growing in a collaborative and innovative environment
- Lead end-to-end data science and AI projects from problem definition and data collection to model deployment and business implementation
- Design, develop, and optimize machine learning and generative AI models to solve complex business problems and drive measurable outcomes
- Integrate AI capabilities into existing products and workflows to enhance functionality and create new value opportunities
- Collaborate with engineering, product, and business teams to identify opportunities where data science and advanced AI can create significant impact
- Communicate insights and recommendations to technical and non-technical stakeholders through compelling visualizations and presentations
- Mentor junior team members and establish best practices for the team's AI approaches and methodologies
- This position will require you to be available during core business hours and participate in an on-call rotation
Application process
- A fully completed application and resume or CV are required when applying
- Anticipated Posting Close Date*: Nov. 6, 2025
- *Job posting may close early due to the volume of applicants
Our take
Internet users around the world have come to expect personalized, real-time digital experiences, but delivering these quickly and securely, while maintaining quality, can be a difficult task for businesses.
Fastly enables the companies to deliver fast, secure, and scalable online experiences. Its edge cloud platform moves data and applications closer to end-users — improving the user experience, putting the power back in developers’ hands, and enabling clients to focus on growing their businesses.
The company has helped several high-profile businesses, including Reddit, Pinterest, Stripe, Epic Games, and more. Its offering is well-regarded in the space, demonstrated by it being named a 2022 Gartner® Peer Insights™ Customers’ Choice for Global CDN, as well as a Leader in The Forrester Wave™: Edge Development Platforms, Q4 2023 report.
Steph
Company Specialist at Welcome to the Jungle
Insights
9% employee growth in 12 months
Company
Funding (last 2 of 7 rounds)
Jan 2019
$40m
SERIES F
Jul 2018
$40m
SERIES F
Total funding: $259m
Company benefits
- Competitive PTO Policies
- Remote or Hybrid Work
- Generous time off for parental leave
- Full medical, dental, and vision coverage
- Short- and long-term disability insurance
- Mental health resources
- 401(k)/retirement plans
- Employee stock purchasing plans (ESPP)
- Reimbursements for learning and development programs
Company HQ
China Basin, San Francisco, CA
Leadership
Artur Bergman
(Chief Architect and Executive Chairperson)Served as the company's CEO until changing roles in 2020. Previously served as CTO at Wikia, and was a Board Member at OpenID Foundation
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