2x founder

Chris Markus

Founder @ BootLoop (YC S25) | Ex-SpaceX Firmware

Founder

BootLoop· Summer 2025 🇺🇸 San Francisco, California, United States

in LinkedIn 𝕏 @chrism4rkus

2025Founder· BootLoop (YC S25)

Founder · since 2018

Company

BootLoop (YC S25)

Role

Founder, CTO

current

Stage

—

no public source

Raised

—

no public source

Based

San Francisco Bay Area

current

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

Source: LinkedIn work history

Profile coverage5 of 7 · missing posts, contact

BootLoop

Firmware in minutes, not months - rigorously tested on real hardware

Summer 2025

Experience

Career

BootLoop (YC S25)
Founder
Founder, CTO · San Francisco Bay Area · 2025 – Present
2025
SpaceX
Flight Software Engineer · 2024 – 2025
2024
SpaceX
Lead Software Engineer · 2023 – 2024
2023
SpaceX
Firmware Engineer · Hawthorne, California, United States · 2021 – 2023
2021
MIT Media Lab
Electrical Engineer · Boston, Massachusetts, United States · 2020 – 2021
2020
Zephyr Oxygen
Software Lead · 2020 – 2021
2020
Sonos, Inc.
Software Engineering Intern · Boston, Massachusetts, United States · 2020
2020
The Ventilator Project
Lead Firmware Engineer · Boston, Massachusetts, United States · 2020
2020
Sonos, Inc.
Software Engineering Intern · Greater Boston Area · 2019
2019
RedCap Digital Media LLC
Co-founder
Technical Director and Co-Founder · Falls Church, VA · 2018 – 2019
2018
Tufts University
Teaching Assistant · Medford, MA · 2018
2018

Bio

Co-founder and CTO of BootLoop. Former lead software engineer for SpaceX's Starship booster catch system. Built SpaceX’s Raptor engine firmware from first fire to flight. Before SpaceX, a visiting researcher at MIT Media Lab designing EEG electronics and firmware lead for an FDA-authorized ventilator.