Cognition
Medium (~300)
MongoDB
Large (~5,500)
Best For
Cognition
Best for: Elite engineers who want to build frontier AI coding agents and own a meaningful equity stake
MongoDB
Best for: Professionals interested in MongoDB
Ratings
CognitionMongoDB
3.8
4.0
Overall
3.2
3.8
Work-Life Balance
3.9
4.1
Culture & Values
3.8
4.0
Comp & Benefits
3.6
3.8
Senior Mgmt
3.6
3.8
Career Opps
👍 76% Recommend
👤 80% CEO Approval (Scott Wu)
👍 80% Recommend
👤 84% CEO Approval (CEO)
Culture Values
Cognition only
🚀 Ship Fast & Iterate
MongoDB only
🔓 Open Source🌱 Learning & Growth
Shared
⚙️ Engineering-Driven💎 Strong Comp & Equity🎯 Direct Product Impact
Pros & Cons
Cognition
- Elite engineering team with strong equity
- Cutting-edge AI agent work
- High-intensity startup pace
- In-person SF expectations
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
Bottom Line
Cognition
Choose Cognition if you want world-class AI agent research (makers of Devin) with strong equity upside — but expect top-tier intensity and mandatory in-person in San Francisco.
MongoDB
MongoDB — check Glassdoor for detailed reviews.
Open Roles
Cognition — 62 jobs
💻 Engineering
21
💼 Sales / GTM
10
📊 Data
3
⚖️ Legal
2
⚙️ Operations
2
💰 Finance
1
👤 HR / People
1
📣 Marketing
1
🧠 ML / AI
1
MongoDB — 428 jobs
💼 Sales / GTM
171
💻 Engineering
133
📋 Product
32
📣 Marketing
14
⚙️ Operations
9
👤 HR / People
8
💰 Finance
6
🧠 ML / AI
4
📊 Data
2
Summary
Cognition scores 3.8/5.0 on Glassdoor with a 3.2 work-life balance rating. MongoDB scores 4.0/5.0 overall with a 3.8 WLB. That’s a 0.2-point gap on overall satisfaction.
Both companies share these culture values: Engineering-Driven, Strong Comp & Equity, Direct Product Impact. Cognition also emphasizes Ship Fast & Iterate. MongoDB also emphasizes Open Source, Learning & Growth.
On the hiring front, Cognition has 62 open roles and MongoDB has 428 open roles.