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John Brennan Email & Phone Number
Founder | Product
at
Lapis Research
LinkedIn matched
✓ Verified August 2026
3 data sources
Profile completeness 86%
Current company
Role
Founder | Product
Location
Toronto, Ontario, Canada
Company size
Who is John Brennan? Overview
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Quick answer
John Brennan is listed as Founder | Product at Lapis Research, a with 6 employees, based in Toronto, Ontario, Canada. AeroLeads shows a matched LinkedIn profile for John Brennan.
John Brennan previously worked as Founder at Lapis Research and Back End Engineer at Yale Ventures. John Brennan holds Bachelor Of Computing, Software Engineering Major With A Minor In Entrepreneurship, 4.0 Gpa, Dean’S List from University Of Guelph.
Company email context
Email format at Lapis Research
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Lapis Research
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Profile bio
About John Brennan
My name is John Brennan. I'm a full stack developer who's built platforms impacting over a million users. I've taught coding to over 1,000 students. Currently, I'm studying Software Engineering with a 4.0 GPA and building an ed-tech startup—the AI learning platform.
Current workplace
John Brennan's current company
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12 roles
John Brennan work experience
A career timeline built from the work history available for this profile.
Founder
Back End Engineer
May 2024 - Present
Startup Founder - Cohort 13
Completed an accelerator program with 3 angel investors and 10 other founders, refining business strategies and management skills to scale my startup rapidly.
Sep 2024 - Oct 2024
Software Developer
Built an internal platform for tracking $60M in invoices, saving $15,000 weekly in labor costs.
Feb 2024 - May 2024
Software Developer
Built a data integration tool for clinical platform, connecting data across studies, impacting over 1M users and supporting 2,000+ researchers.
Mar 2023 - Feb 2024
Front-End Developer
Developed a learning platform for 1000+ students, boosting engagement by 65%, and automated grading to cut instructor workload by 75%, all within a coding-focused environment.
Apr 2022 - Mar 2023
Frontend Developer
Co-founded a consulting firm, delivering over 13 projects to 50+ clients by building web platforms that saved clients 30% in operational costs.
Jan 2021 - Mar 2023
Coding Instructor
Instructed 170+ students in Python and Java, increasing student interest in technology by 40% and preparing 60% for competitive programming and STEM careers.
Jul 2021 - Jun 2022
Robotics Teaching Assistant
Assisted in teaching robotics to 200+ students, improving class materials and increasing student engagement by 35%, leading to a 25% rise in participation in STEM-related activities.
Sep 2021 - Feb 2022
Data Science Team Founder
Led a team of 4 using data science to write a paper on the renewable energy investment complex, earning a top 2% ranking, and analyzing how investments impact innovation.
Sep 2021 - Dec 2021
4 education records
John Brennan education
Bachelor Of Computing, Software Engineering Major With A Minor In Entrepreneurship, 4.0 Gpa, Dean’S List
Full Stack Development Program, Computer Science
Full-Stack Development, Computer Science
Specialized High Skills Major - High School Diploma With Honours, Shsm In Information Technology, 4.0 Gpa (97% Average)
Neil Mcneil Highschool
FAQ
Frequently asked questions about John Brennan
Quick answers generated from the profile data available on this page.
What company does John Brennan work for?
John Brennan works for Lapis Research.
What is John Brennan's role at Lapis Research?
John Brennan is listed as Founder | Product at Lapis Research.
Where is John Brennan based?
John Brennan is based in Toronto, Ontario, Canada while working with Lapis Research.
What companies has John Brennan worked for?
John Brennan has worked for Lapis Research, Yale Ventures, Valar Tech, Treefrog Accelerator, and Fanuc America Corporation.
How can I contact John Brennan?
You can use AeroLeads to view verified contact signals for John Brennan at Lapis Research, including work email, phone, and LinkedIn data when available.
What schools did John Brennan attend?
John Brennan holds Bachelor Of Computing, Software Engineering Major With A Minor In Entrepreneurship, 4.0 Gpa, Dean’S List from University Of Guelph.
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