John Peterson in

John Peterson

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Founder In Residence at Antler
📍 United Kingdom

John is a full-stack engineer turned technical co-founder building startups at Antler. He is the founder of AgenticLayer, focused on B2B SaaS automation, and a Founding Engineer at SAMMY Labs (YC W25). His background includes experience at Globality and KPMG, and he holds a CFA Level 1 certification.

John graduated from the University of Exeter. During his earlier education at Kings College School Wimbledon, he was active in sports and served as the 2nd Team Hockey Captain, showing a foundation in teamwork and leadership.

He possesses a unique combination of deep technical engineering skills and financial knowledge, evidenced by his CFA Level 1 certification.

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Experience
2 Years
Current Role
Founder In Residence
Job Level
Leadership
Location
United Kingdom
Personality Overview

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Communication Style
Decision Approach
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Priorities

Topics John cares about

B2B SaaS Automation
As the founder of AgenticLayer, he is building a company to automate billing support for high-growth B2B SaaS teams.
AI App Solutions
As a Founding Engineer at SAMMY Labs, he is developing an AI that explores and maps applications like a real user.
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Career

Work history

10-2025
Founder In Residence
Antler
9-2025
Founder
AgenticLayer
5-2025 - 9-2025
Founding Engineer
SAMMY Labs (YC W25)
Globality, Inc.
4 yrs 6 mos
KPMG UK
2 yrs 3 mos
In the press

Media appearances

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Education
2013 - 2018
Bachelor’s Degree
University of Exeter
2008 - 2013
High School
King's College School Wimbledon
Social presence
in
Behavioral profile

DISC profile (public)

DISC behavioral profile

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