Mercury
Large (~1,300)
MongoDB
Large (~5,500)
Best For
Mercury
Best for: Engineers who want product ownership and fast growth building startup banking infrastructure
MongoDB
Best for: Professionals interested in MongoDB
Ratings
MercuryMongoDB
4.3
4.0
Overall
3.8
3.8
Work-Life Balance
3.9
4.1
Culture & Values
4.0
4.0
Comp & Benefits
3.8
3.8
Senior Mgmt
3.9
3.8
Career Opps
👍 79% Recommend
👤 85% CEO Approval (Immad Akhund)
👍 80% Recommend
👤 84% CEO Approval (CEO)
Culture Values
Mercury only
🚀 Ship Fast & Iterate🧩 Wears Many Hats
MongoDB only
🔓 Open Source
Shared
🎯 Direct Product Impact⚙️ Engineering-Driven🌱 Learning & Growth💎 Strong Comp & Equity
Pros & Cons
Mercury
- Strong talent density with smart, motivated teammates and genuine autonomy and ownership
- Great Place to Work certified — product-first mindset with meaningful scope for every engineer
- Still figuring out how to scale processes — expect some ambiguity and shifting priorities
- Work-life balance rated 3.8/5 — periods of higher intensity during rapid growth phases
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
Mercury
Choose Mercury if you want product ownership, fast growth, and to build banking infrastructure for startups — but expect growing pains and occasionally intense workloads.
MongoDB
MongoDB — check Glassdoor for detailed reviews.
Open Roles
Mercury — 70 jobs
💻 Engineering
15
💼 Sales / GTM
13
👤 HR / People
4
📋 Product
4
🎨 Design
3
⚖️ Legal
3
⚙️ Operations
3
📊 Data
2
💰 Finance
2
📣 Marketing
2
🧠 ML / AI
1
🎧 Support
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
Mercury scores 4.3/5.0 on Glassdoor with a 3.8 work-life balance rating. MongoDB scores 4.0/5.0 overall with a 3.8 WLB. That’s a 0.3-point gap on overall satisfaction.
Both companies share these culture values: Direct Product Impact, Engineering-Driven, Learning & Growth, Strong Comp & Equity. Mercury also emphasizes Ship Fast & Iterate, Wears Many Hats. MongoDB also emphasizes Open Source.
On the hiring front, Mercury has 70 open roles and MongoDB has 428 open roles.