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Ethan Caldwell Email & Phone Number
Founding Engineer
at
Sapien
LinkedIn matched
✓ Verified July 2026
3 data sources
Profile completeness 86%
Current company
Role
Founding Engineer
Location
Vienna, Virginia, United States
Company size
Who is Ethan Caldwell? Overview
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Quick answer
Ethan Caldwell is listed as Founding Engineer at Sapien, a with 7 employees, based in Vienna, Virginia, United States. AeroLeads shows a matched LinkedIn profile for Ethan Caldwell.
Ethan Caldwell previously worked as Incoming Software Engineer Intern at Appian Corporation and Chief Technology Officer at Paragon Patents. Ethan Caldwell holds Bachelor Of Arts - Ba, Computer Science from Princeton University.
Company email context
Email format at Sapien
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Sapien
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Profile bio
About Ethan Caldwell
I'm a Princeton student studying computer science, both software engineering and AI/ML. I have professional experience working with the fundamentals of computer science – algorithms and data structures – and with neural networks and machine learning. I'm especially passionate about studying the Alignment problem to understand how to collaboratively work toward a future where humans and technology can productively and ethically coexist, which is why I am heavily involved with organizations at Princeton that aim to shape best practices for the next generation of tech -- and why I'm the CTO of an AI-based startup. While gaining valuable professional experience leading teams, overseeing development, and managing responsibility, I’ve discovered that working on software is my passion, but working with people is my lifeblood.
Current workplace
Ethan Caldwell's current company
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Sapien
5 roles
Ethan Caldwell work experience
A career timeline built from the work history available for this profile.
Incoming Software Engineer Intern
Incoming Software Engineer Intern at Appian (summer 2025).
Chief Technology Officer
Paragon Patents
- Lead AI-based startup (team of 8+) that developed LLM platform that reduces time to convert invention disclosures to legally sound patents by 90+% for <$1.- Oversee and develop front- and back-end architecture in Flask web app; solely responsible for public deployment.
Technical Lead And Software Developer
- Lead team of engineers to develop front- and back-end architecture (MERN stack) in applications for non-profits (African Library Project/NJ Tree Foundation).- Meet with leadership weekly to design & implement best technical solutions and oversee future of organization.
Software And Automation Intern
- Developed software & automations to improve data-collection efficiency by ~300% (React, JS, monday.com, make).- Selected by CEO to solve key issue in web app (Vue, Quasar, GraphQL, Webiny); 470k users + 2M page views/month.- Built AI tour-guide app & chatbot: identifies landmark & generates audio description; released to Apple TestFlight.
May 2024 - Aug 2024
2 education records
Ethan Caldwell education
Bachelor Of Arts - Ba, Computer Science
Princeton University
High School Diploma, Computer Science
Thomas Jefferson High School For Science And Technology
FAQ
Frequently asked questions about Ethan Caldwell
Quick answers generated from the profile data available on this page.
What company does Ethan Caldwell work for?
Ethan Caldwell works for Sapien.
What is Ethan Caldwell's role at Sapien?
Ethan Caldwell is listed as Founding Engineer at Sapien.
Where is Ethan Caldwell based?
Ethan Caldwell is based in Vienna, Virginia, United States while working with Sapien.
What companies has Ethan Caldwell worked for?
Ethan Caldwell has worked for Sapien, Appian Corporation, Paragon Patents, Hack4Impact, and General Systems Corporation.
How can I contact Ethan Caldwell?
You can use AeroLeads to view verified contact signals for Ethan Caldwell at Sapien, including work email, phone, and LinkedIn data when available.
What schools did Ethan Caldwell attend?
Ethan Caldwell holds Bachelor Of Arts - Ba, Computer Science from Princeton University.
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