Data Scientist — Fastly Salary Negotiation Guide

Negotiation DNA: Data Scientists at Fastly develop models for network optimization, traffic prediction, anomaly detection, and DDoS mitigation that improve the performance and security of the edge cloud platform.

Compensation Benchmarks (2026)

Level	San Francisco (USD)	Remote US (USD)
Mid (L3-L4)	$155,000–$218,000	$140,000–$200,000
Senior (L5)	$215,000–$288,000	$198,000–$270,000
Staff+ (L6+)	$283,000–$363,000	$265,000–$343,000

Total compensation includes base salary, FSLY RSUs, and performance bonus (10%).

Lever 1: Network Traffic Optimization — "ML models optimize routing and caching across Fastly's global network."

Lever 2: DDoS and Threat Detection — "I build anomaly detection models for Fastly's security services."

Lever 3: Cache Hit Rate Optimization — "Improving cache hit rates directly reduces origin costs for customers."

Lever 4: Edge Data Analysis — "Analyzing request patterns at the edge provides unique traffic insights."

Negotiate Up Strategy: Open at $173,000 base with FSLY RSUs valued at $50K-$73K/year. Accept-at floor: $228,000 total comp.

Evidence & Sources

• Fastly SEC filings — ~$4B market cap, 2025–2026
• Levels.fyi Fastly 2025–2026 compensation data
• Glassdoor Fastly salary data 2025–2026