At Umbrel, we believe that everyone should be able to enjoy the convenience and benefits of the cloud, without giving up the ownership and control of their data.

To achieve our vision, we're building two things:

• umbrelOS - A new kind of operating system for running a personal server.
• Umbrel Home - A plug-and-play personal server (hardware device), powered by umbrelOS.

The personal computer revolution shifted computing from rooms full of computers (mainframes) to personal computers. The personal server revolution will shift computing from rooms full of servers (data centers) to personal servers.

We believe that over this decade, personal servers will become as ubiquitous as the internet routers today. And our goal is to power this shift by making an incredibly simple yet powerful operating system, and device, for running them.

Our most important work lies ahead of us, and you can be a part of it.

What do you value at Umbrel?

• Making users happy: Our decisions, intention, results, and motivation stem from trying to delight our users — from shitposting memes on Twitter to obsessing over micro-interactions in our product.
• Asynchronous communication: Deep work requires large chunks of time so we try to communicate asynchronously to provide more time for deep work.
• Results driven: We do what we promised each other, our users, community, and investors. While effort is recognized, it’s not regarded equally. We care about what we achieve.
• Kindness: While being kind may not seem ruthlessly connected to outcomes, it does make work a lot more fun. We suspect that’s key to doing great work over a long period of time.
• Speed: Speed is a competitive advantage as a startup. As startups get larger, they tend to get slower—we hope to decelerate that as much as possible. You should always be asking: “Could we do this faster?”

What are you looking for in candidates?

Talent, passion, genuine love for your craft, and the desire to do meaningful work. What we’re not looking for: credentials and degrees. When you really love what you do, work feels like play. And when work feels like play, you become the best at it. That’s what we’re looking for.

This role requires a strong understanding of Linux systems, particularly at the kernel level, networking, Docker, and the ability to optimize for both x86 and ARM64 architectures.

In this role, you will:

• Develop and maintain the core components of umbrelOS, focusing on performance, stability, and security across different hardware architectures.
• Ensure optimal integration and performance of umbrelOS on the Umbrel Home.
• Design and implement system-level enhancements.
• Conduct rigorous testing and debugging at the kernel level to handle system updates and compatibility issues.

We hope you:

• Can autonomously figure out solutions to engineering challenges
• Value clear and frequent communication (we do a lot of reading and writing)
• Enjoy being a generalist and are not tied down to a specific framework or surface area of our codebase
• Leave no opportunity to sneak jokes into the source code
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• Are naturally curious and willing to learn something they don’t have experience in
• Have good judgement of when to ship: perfect is the enemy of good