Adyen
Large (~4,770)
Vast AI
Small (~30)
Best For
Adyen
Best for: Payments and backend engineers who value a no-nonsense engineering-first culture with above-average WLB and the challenge of processing global financial transactions at massive scale
Vast AI
Best for: Scrappy generalists who want a front-row seat to the AI compute revolution
Ratings
AdyenVast AI
3.8
5.0
Overall
4.1
3.8
Work-Life Balance
3.9
5.0
Culture & Values
3.8
5.0
Comp & Benefits
3.6
5.0
Senior Mgmt
3.6
5.0
Career Opps
👍 76% Recommend
👤 80% CEO Approval (Ingo Uytdehaage)
👍 100% Recommend
👤 100% CEO Approval (Jake Cannell)
Culture Values
Adyen only
⚖️ Work-Life Balance🎯 Direct Product Impact🌱 Learning & Growth
Vast AI only
🤝 Flat Hierarchy🧩 Wears Many Hats💎 Strong Comp & Equity
Shared
⚙️ Engineering-Driven🚀 Ship Fast & Iterate
Pros & Cons
Adyen
- Smart, humble colleagues with high standards and a market-leading payments product
- Good work-life balance with trust-based culture, free lunch, and international team trips
- Below-market compensation (~20% less than peers) with poor stock options
- Middle management quality issues as company scaled — inexperienced managers and internal politics
Vast AI
- Front-row seat to the AI compute revolution — demand for GPU cloud is surging
- Strong compensation and generous equity stakes for a bootstrapped startup
- Processes are still being defined — expect ad hoc workflows
- Intense workload — the team explicitly values high output
Bottom Line
Adyen
Adyen's engineering culture is well-regarded in fintech — principled, WLB-conscious (4.1/5), and technically rigorous — but expect a methodical Amsterdam-centric culture rather than a high-growth startup vibe.
Vast AI
Choose Vast AI if you want perfect Glassdoor scores and generous equity at a tiny GPU marketplace — but expect startup chaos.
Open Roles
Adyen — 302 jobs
💻 Engineering
82
💼 Sales / GTM
67
👤 HR / People
16
⚖️ Legal
15
📋 Product
14
💰 Finance
12
📊 Data
11
⚙️ Operations
11
📣 Marketing
5
🎨 Design
4
🧠 ML / AI
2
🎧 Support
1
Vast AI — 10 jobs
💻 Engineering
6
🧠 ML / AI
2
📊 Data
1
Summary
Adyen scores 3.8/5.0 on Glassdoor with a 4.1 work-life balance rating. Vast AI scores 5.0/5.0 overall with a 3.8 WLB. That’s a 1.2-point gap on overall satisfaction.
Both companies share these culture values: Engineering-Driven, Ship Fast & Iterate. Adyen also emphasizes Work-Life Balance, Direct Product Impact, Learning & Growth. Vast AI also emphasizes Flat Hierarchy, Wears Many Hats, Strong Comp & Equity.
On the hiring front, Adyen has 302 open roles and Vast AI has 10 open roles.