Sierra
Large (~500)
Twilio
Large (~5,500)
Best For
Sierra
Best for: Builders who want to work with proven Salesforce and Google leadership on enterprise AI agents
Twilio
Best for: Professionals interested in Twilio
Ratings
SierraTwilio
4.0
3.9
Overall
3.5
4.1
Work-Life Balance
4.1
4.0
Culture & Values
4.0
3.9
Comp & Benefits
3.8
3.7
Senior Mgmt
3.8
3.7
Career Opps
👍 80% Recommend
👤 84% CEO Approval (Bret Taylor)
👍 78% Recommend
👤 82% CEO Approval (CEO)
Culture Values
Sierra only
🚀 Ship Fast & Iterate
Twilio only
🌐 Remote-Friendly⚖️ Work-Life Balance🔓 Open Source
Shared
⚙️ Engineering-Driven💎 Strong Comp & Equity🌱 Learning & Growth
Pros & Cons
Sierra
- Elite founders with proven track records
- Strong equity at $10B valuation
- In-person-first culture
- Competitive intensity may not suit everyone
Twilio
- Genuine remote-first flexibility with excellent work-life balance
- Strong compensation, benefits, and engineering-driven culture
- Frequent reorgs and leadership changes create uncertainty
- Culture has shifted from creative builders to more corporate, profit-driven focus
Bottom Line
Sierra
Choose Sierra if you want elite founders (Bret Taylor, Clay Bavor) and strong equity at a $10B enterprise AI company — but it's in-person-first and the competitive intensity won't suit everyone.
Twilio
Twilio — check Glassdoor for detailed reviews.
Open Roles
Sierra — 134 jobs
💻 Engineering
42
💼 Sales / GTM
27
📋 Product
15
👤 HR / People
7
🎨 Design
5
⚖️ Legal
5
📣 Marketing
5
⚙️ Operations
5
📊 Data
2
💰 Finance
1
Twilio — 143 jobs
💼 Sales / GTM
44
💻 Engineering
43
📋 Product
8
🧠 ML / AI
7
📣 Marketing
6
⚙️ Operations
3
📊 Data
2
🎨 Design
2
💰 Finance
2
👤 HR / People
2
⚖️ Legal
2
Summary
Sierra scores 4.0/5.0 on Glassdoor with a 3.5 work-life balance rating. Twilio scores 3.9/5.0 overall with a 4.1 WLB. That’s a 0.1-point gap on overall satisfaction.
Both companies share these culture values: Engineering-Driven, Strong Comp & Equity, Learning & Growth. Sierra also emphasizes Ship Fast & Iterate. Twilio also emphasizes Remote-Friendly, Work-Life Balance, Open Source.
On the hiring front, Sierra has 134 open roles and Twilio has 143 open roles.