Staff Software Engineer (Mobile) - Block, Proto Division

Company Overview

Block, a leading company in financial services, is dedicated to economic empowerment and is built from many blocks, each serving a unique purpose. Our foundational teams span across People, Finance, Counsel, Hardware, Information Security, and Platform Infrastructure Engineering, providing support and guidance at the corporate level.

Job Description

As a Staff Software Engineer in the Proto division at Block, you will be part of a team that accelerates the world’s transition to a more open economy. Proto's purpose is to develop products that increase access and independence for everyone, starting with initiatives in the Bitcoin space such as Bitcoin mining and Bitkey, a self-custody Bitcoin wallet.

Your role will involve architecting Kotlin Multiplatform solutions or deep experience architecting Kotlin-based Android solutions at scale. You will collaborate with a small cross-discipline engineering team to shape our multiplatform story in a scalable, sustainable, and secure way. This includes deep feature development work in the Bitkey self-custody wallet alongside mobile and server engineers.

Responsibilities

• Ship critical features in a non-custodial, hardware-enabled bitcoin wallet to a global audience.
• Collaborate with and help lead an experienced group of mobile engineers.
• Evolve our multi-platform mobile system architecture.
• Advance our testing capabilities and performance.
• Improve our mobile CI infrastructure.
• Work closely with designers and product managers to build user experiences expanding the offerings of Bitkey.

Qualifications

• 12+ years of engineering experience with a significant focus on mobile development.
• Experience architecting Android mobile applications.
• Some experience or interest in Kotlin Multiplatform.
• Experience designing and building APIs between mobile applications and backend services.
• Knowledge of build tooling such as Gradle.

Technologies We Use and Teach

• Mobile Application: Kotlin, Kotlin Multiplatform, Swift, SQLite
• Backend Services: AWS, DynamoDB, Rust
• Other: Github, Datadog

Additional Information

Block takes a market-based approach to pay, and pay may vary depending on your location. U.S. locations are categorized into one of four zones based on a cost of labor index for that geographic area. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions.

Benefits

• Healthcare coverage (Medical, Vision and Dental insurance)
• Health Savings Account and Flexible Spending Account
• Retirement Plans including company match
• Employee Stock Purchase Program
• Wellness programs, including access to mental health, 1:1 financial planners, and a monthly wellness allowance
• Paid parental and caregiving leave
• Paid time off (including 12 paid holidays)
• Paid sick leave
• Learning and Development resources
• Paid Life insurance, AD&D, and disability benefits