2x founder

Jack Mastrangelo

Director of Engineering at Moab

Founder

2026Director of Engineering· Moab

Founder · since 2023

Company

Moab

Role

Director of Engineering

current

Stage

—

no public source

Raised

—

no public source

Based

New York, NY

current

Founder / co-founder — the company's markEmployee / research role

Profile coverage5 of 7 · missing posts, contact

Cobblestone

Delinquency reduction and automation software for institutional…

Experience

Career

Moab
Director of Engineering · New York, NY · 2026 – Present
2026
100
Advisor · 2025 – Present
2025
Crosby
Founder
Founding Engineer · New York City Metropolitan Area · 2025 – 2026
2025
Cobblestone
Co-founder
Co-Founder, CTO (YC W23, Acquired by 100) · New York City Metropolitan Area · 2023 – 2025
2023
Ramp
Senior Software Engineer · New York City Metropolitan Area · 2022
2022
Ramp
Software Engineer · New York, United States · 2021 – 2022
2021
Facebook
Software Engineer · New York, United States · 2020 – 2021
2020
Gatherly
Software Engineer · Atlanta, Georgia, United States · 2020
2020
Northeastern University
Fundamentals of Computer Science Teaching Assistant · Greater Boston Area · 2017 – 2020
2017
Google
Software Engineer Intern · Irvine, California · 2019
2019
Facebook
Software Engineer Intern · Menlo Park, California · 2019
2019
PlacePass
Full-stack Developer Co-op · Greater Boston Area · 2018
2018
Northeastern University
Honors Early Research Assistant · Greater Boston Area · 2016 – 2017
2016
NYU Polytechnic School of Engineering
Intern · 2016
2016

Cofounder of Cobblestone, ex-Ramp & Facebook software engineer.