MongoDB
Large (~5,500)
Sierra
Large (~500)
Best For
MongoDB
Best for: Professionals interested in MongoDB
Sierra
Best for: Builders who want to work with proven Salesforce and Google leadership on enterprise AI agents
Ratings
MongoDBSierra
4.0
4.0
Overall
3.8
3.5
Work-Life Balance
4.1
4.1
Culture & Values
4.0
4.0
Comp & Benefits
3.8
3.8
Senior Mgmt
3.8
3.8
Career Opps
👍 80% Recommend
👤 84% CEO Approval (CEO)
👍 80% Recommend
👤 84% CEO Approval (Bret Taylor)
Culture Values
MongoDB only
🔓 Open Source🎯 Direct Product Impact
Sierra only
🚀 Ship Fast & Iterate
Shared
⚙️ Engineering-Driven🌱 Learning & Growth💎 Strong Comp & Equity
Pros & Cons
MongoDB
- World-class enablement — best training programs many employees have encountered
- Competitive pay with strong equity, especially for senior roles
- No 401k match and culture has gotten more political at scale
- Work-life balance is team-dependent — some teams have long hours expectations
Sierra
- Elite founders with proven track records
- Strong equity at $10B valuation
- In-person-first culture
- Competitive intensity may not suit everyone
Bottom Line
MongoDB
MongoDB — check Glassdoor for detailed reviews.
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
MongoDB — 428 jobs
💼 Sales / GTM
171
💻 Engineering
133
📋 Product
32
📣 Marketing
14
⚙️ Operations
9
👤 HR / People
8
💰 Finance
6
🧠 ML / AI
4
📊 Data
2
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
MongoDB scores 4.0/5.0 on Glassdoor with a 3.8 work-life balance rating. Sierra scores 4.0/5.0 overall with a 3.5 WLB. They’re tied on overall satisfaction.
Both companies share these culture values: Engineering-Driven, Learning & Growth, Strong Comp & Equity. MongoDB also emphasizes Open Source, Direct Product Impact. Sierra also emphasizes Ship Fast & Iterate.
On the hiring front, MongoDB has 428 open roles and Sierra has 134 open roles.