Job Description

The Cash App Crypto team is responsible for building, maintaining, and growing Cash App’s blockchain-based financial services, with the mission of empowering individuals across the world through access to Bitcoin and other digital assets. We prioritize building meaningful financial services over speculation and put Bitcoin at the heart of our crypto innovation strategy.

As an engineer on the Crypto Network team you will design, build, and evolve the on-chain, lightning network, p2p, and international infrastructure that enables our customers to trade Bitcoin and other digital assets and then transfer it across the Cash App network and external protocols..

You will:

• Build and operate services at scale as CashApp expands globally and the uptake in Cryptocurrencies increases
• Own functionality throughout their entire lifecycle. The opportunity to scope, design, engineer, rollout, test and support features delivered to millions of customers
• Build Kotlin APIs and services used by apps and other microservices
• Operationalise and support services we own during oncall and pager
• Work across different time zones and cultures to achieve a common objective
• Work in a highly collaborative environment that offers flexibility and autonomy so that you can perform to the best of your abilities
• Help bank the unbanked and serve the financially underserved across the whole globe!

Qualifications

You have:

• 5+ years of software development experience
• A passion or desire to learn more about the fascinating world of crypto and Bitcoin
• Experience or interest in learning more about functional programming
• Taken technical initiative and led projects across multiple teams and disciplines in your previous projects
• Able to work in ambiguous environments and work autonomously
• A history of healthy collaboration with product managers, engineers, and other stakeholders
• A sense of humour and a sustainable work life balance philosophy

Technologies we use and teach:

• Kotlin, Java
• Kubernetes, AWS
• Functional programming, Arrow, Property Based Testing
• MySQL, DynamoDB
• JUnit, JOOQ, Hibernate, Guice
• HTTP, JSON, gRPC, and Protocol Buffers
• Kafka, event driven systems
• Docker, Kubernetes
• SignalFx, Sentry, Datadog

Additional Information

We’re working to build a more inclusive economy where our customers have equal access to opportunity, and we strive to live by these same values in building our workplace. Block is a proud equal opportunity employer. We work hard to evaluate all employees and job applicants consistently, based solely on the core competencies required of the role at hand, and without regard to any legally protected class.