John Mamby
Senior Backend Developer JAVA at Critical Mass
Sabaneta, Antioquia Department
John Mamby, Senior Backend Developer JAVA at Critical Mass is an active investor based in Sabaneta, Antioquia Department. This profile covers what John Mamby backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelOperator
- Stages
- Pre SeedSeed
- Invests in
- Artificial IntelligenceFintechPaymentsHealthcare & BiotechSaaS & EnterpriseConsumer & RetailE-commerce & D2CDeveloper Tools & Data
- Location
- Sabaneta, Antioquia Department
- Typical check
- $150K
- Past investments
- 2
Notable investments
How to reach John Mamby
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Frequently Asked Questions
What does John Mamby invest in?
John Mamby invests in Artificial Intelligence, Fintech, Payments and Healthcare & Biotech, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
How do I contact John Mamby?
Unlock John Mamby's verified email on Round Funded and send a personalized pitch. We surface only deliverable contacts so your outreach lands.
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