Doctolib
Large (~3,500)
Sierra
Large (~500)
Best For
Doctolib
Best for: Engineers motivated by healthcare impact who want to build products improving medical access across Europe at a mission-driven company with a strong French tech identity
Sierra
Best for: Builders who want to work with proven Salesforce and Google leadership on enterprise AI agents
Ratings
DoctolibSierra
3.7
4.0
Overall
3.7
3.5
Work-Life Balance
3.8
4.1
Culture & Values
3.7
4.0
Comp & Benefits
3.5
3.8
Senior Mgmt
3.5
3.8
Career Opps
👍 74% Recommend
👤 78% CEO Approval (Stanislas Niox-Chateau)
👍 80% Recommend
👤 84% CEO Approval (Bret Taylor)
Culture Values
Doctolib only
💜 Mission-Driven🎯 Direct Product Impact
Sierra only
⚙️ Engineering-Driven💎 Strong Comp & Equity
Shared
🌱 Learning & Growth🚀 Ship Fast & Iterate
Pros & Cons
Doctolib
- Mission-driven colleagues who genuinely care about improving healthcare access
- Strong growth opportunities with flexible remote policy and decent benefits
- Management can be heavy-handed — uses company principles as weapons against feedback
- French-centric culture makes it harder for non-French speakers to advance
Sierra
- Elite founders with proven track records
- Strong equity at $10B valuation
- In-person-first culture
- Competitive intensity may not suit everyone
Bottom Line
Doctolib
Genuine social mission (digitizing healthcare access for millions) with a fast-shipping culture, but at 3,500 people reviews cite organizational change fatigue and management inconsistency.
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.
Open Roles
Doctolib — 241 jobs
💼 Sales / GTM
80
💻 Engineering
45
📣 Marketing
13
👤 HR / People
8
📊 Data
7
📋 Product
7
🧠 ML / AI
5
⚖️ Legal
4
🎨 Design
2
💰 Finance
2
⚙️ Operations
2
🎧 Support
1
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
Summary
Doctolib scores 3.7/5.0 on Glassdoor with a 3.7 work-life balance rating. Sierra scores 4.0/5.0 overall with a 3.5 WLB. That’s a 0.3-point gap on overall satisfaction.
Both companies share these culture values: Learning & Growth, Ship Fast & Iterate. Doctolib also emphasizes Mission-Driven, Direct Product Impact. Sierra also emphasizes Engineering-Driven, Strong Comp & Equity.
On the hiring front, Doctolib has 241 open roles and Sierra has 134 open roles.