Job Description

We’re making a bitcoin wallet for the next 100M bitcoin users. Our goal is economic empowerment -- starting with bringing easy-to-use, reliable self-custody to a global audience. We’re assembling a team deeply experienced in an extremely wide range of disciplines, including business, operations, design, software, hardware, security, and so many other aspects of product delivery. Come build the future of crypto-enabling hardware with us!

We are hiring a backend engineer to build the software customers use to interact with our hardware wallet.

You Will:

• Ship a non-custodial, hardware-enabled bitcoin wallet to a global audience

• Design, build, deploy, and sustain a wide range of backend secure and reliable services supporting the wallet -- multisig key management and provisioning, blockchain interaction, recovery processes, logistics, and more

• Make key architecture and platform choices, leveraging existing Square infrastructure and best practices where appropriate and and forging a new path when our unique needs require it

• Collaborate with mobile and firmware engineers, product managers, and infrastructure and service teams throughout the company

• Own testing, observability, and maintenance for the services you and the team create

Qualifications

You Have:

• 5+ years experience with the full life-cycle of critical production services - ideally in one of java/go/ruby and on AWS

• Experience developing for bitcoin/cryptocurrency applications, or with key management and other cryptographic applications

• Note: with this role, we are hiring for multiple positions - and not all of the initial team needs to have this prerequisite

• Empathy for your customers and colleagues

• Interest in the opportunities and challenges that come with building a new product area from the ground up

• No location requirements, occasional travel to U.S. and international manufacturing sites may be required. GMT-5 (Eastern) to GMT-10 (Hawaii) strongly preferred for engineering roles.