
Design, build, test, and iterate physical systems in hours, not months. Backed by Sequoia Capital, Patrick and John Collison, and David Helgason. Used by Rivian, Joby, Astranis, and Radiant.

Design, build, test, and iterate physical systems in hours, not months. Backed by Sequoia Capital, Patrick and John Collison, and David Helgason. Used by Rivian, Joby, Astranis, and Radiant.
What they do: Requirements and systems-engineering platform with AI agents for complex hardware development
Customers / users: Engineering teams in space, defense, robotics, automotive, and energy (used by Rivian, Joby, Astranis, Radiant)
Funding: Raised an $8.5M seed (Dec 2022) and a reported $23M Series A
Backing: Investors include Sequoia, EQT Ventures, Backed VC, and angel investors
Team size (reported): 27 employees
Complex hardware engineering (systems engineering, requirements management, iterative hardware development)
IT Services and IT Consulting
$8.5M
Seed round reported with participation from Backed VC and angel investors
$23M
Series A reported in October 2025
“Backed by institutional VCs (EQT Ventures, Sequoia, Backed VC) and angel investors”
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🚀 About Flow Flow is massively accelerating the development of next-generation hardware systems. We’re on a mission to reinvent the way humanity develops its most important machines.
We’re backed by Sequoia Capital with angel investors including Patrick & John Collison (Stripe), David Helgason (Unity) and Kyle Parrish (Figma).
Flow is the default requirements tool for complex systems engineering used by next gen space, defense, automotive and robotics companies. When humanity returns to the Moon, builds fusion power, or lands the first interplanetary colony - Flow will have played a vital role.
👷♂️ What You’ll Do
You’ll help build features that tackle some of the world’s toughest hardware engineering problems - and depending on your experience, you’ll take on increasing ownership and leadership responsibilities as we scale.
If you’re more experienced (4+ years):
🧠 About You
🖥️ Our Tech Stack
✨ Leveling
We’re hiring across multiple levels .
💡 Learn About How We Think
♥️ What We Value
Compensation Range: £80K - £180K
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