Senior Software Engineer - Bitcoin TradingFull-timeBlock is one company built from many blocks, all united by the same purpose of economic empowerment. The blocks that form our foundational teams — People, Finance, Counsel, Hardware, Information Security, Platform Infrastructure Engineering, and more — provide support and guidance at the corporate level. They work across business groups and around the globe, spanning time zones and disciplines to develop inclusive People policies, forecast finances, give legal counsel, safeguard systems, nurture new initiatives, and more. Every challenge creates possibilities, and we need different perspectives to see them all. Bring yours to Block.Bitcoin PlatformThe Bitcoin Platform team develops infrastructure for Block to send, receive and custody bitcoin by operating a stack for both cold, hot, and lightning wallets. Our goal is to bring bitcoin to people around the world, unlocking previously impossible use cases to accelerate a world built on better money. The team is composed of engineers that specialize in backend, security, and blockchain engineering.Bitcoin Platform Engineering is composed of two teams: Custody and Trading Engineering. We're responsible for managing and improving our hot and cold Bitcoin wallets, handling transfers in and out of our wallets, and working on next generation Bitcoin technology and features like running a Lightning network node. You will be responsible for designing, building, troubleshooting and improving Bitcoin platform features, services, and infrastructure.You have:5+ years of relevant experienceA strong motivation to contribute to a meaningful product that will fundamentally change the way people interact with financial institutionsExperience working with Bitcoin/Lightning or the desire to learnExperience working across teams and disciplinesExperience building backend systems at scale, involving modern eventing, database, and infrastructure toolingA pragmatic approach with a focus on deliveryAbility to excel in macro and micro elements of software designWillingness to contribute to the growth of those around youDemonstrated technical initiative and leadership on previous projectsYou will:Help enable instant cross-border payments by helping design, build, and deploy a self-custody Lightning solution for the walletWork with other experts at Block to improve Bitcoin Development Kit and Lightning Development Kit to benefit the broader bitcoin ecosystem and communityInfluence and define the future blockchain and cryptocurrency technologies leveraged in the wallet, Block and the broader industryHelp guide and write code that we can share between our mobile application and backend servicesMake key architecture and platform choices, leveraging existing Block infrastructure and best practices where appropriate and forging a new path when our unique needs require itCollaborate with mobile and firmware engineers, product managers, and infrastructure and service teams throughout the companyOwn testing, observability, and maintenance for the solutions you and the team createTechnologies we use and teach:Java, KotlinGoJUnitHibernate, Vitess, GuiceBlock is a globally distributed company and this role will require working with other employees in multiple time zones. You may be required to perform work outside of normal business as part of this role.
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