About The Company Block, Inc. is a leading technology company committed to increasing access to the global economy through innovative financial products and platforms. Renowned for its diverse portfolio of brands including Square, Cash App, Afterpay, TIDAL, Bitkey, and Proto, the company aims to empower individuals and businesses worldwide by providing secure, reliable, and user-friendly financial solutions.
Block's mission is to build an inclusive financial system that fosters economic growth and opportunity for all, leveraging cutting-edge technology such as blockchain, cryptocurrency, and mobile banking. With a focus on transparency, security, and community impact, Block continues to push the boundaries of financial innovation, making complex financial capabilities accessible and easy to use for millions of users globally.
About The Role We are seeking a highly skilled Staff iOS Engineer to join our Bitcoin team. In this critical role, you will be responsible for leading the technical direction and development of key iOS products related to bitcoin, stablecoins, and non-custodial wallets.
You will work closely with cross-functional teams including product managers, designers, and backend engineers to transform complex financial features into seamless and reliable customer experiences. This hands-on position requires a deep understanding of iOS development, architecture, and emerging technologies, including AI integration, to drive innovation and product excellence. As a leader within the team, you will own end-to-end feature development, influence architectural decisions, and mentor junior engineers, ensuring the delivery of high-quality, secure, and scalable solutions.
Your work will have a direct impact on millions of users by enabling secure and accessible cryptocurrency transactions and wallet management.
Qualifications
12+ years of professional software engineering experience, including 4+ years of building native iOS applications.
Deep expertise in developing, shipping, and maintaining iOS products using Swift and Apple frameworks.
Proven experience creating foundational systems, shared frameworks, and tooling used across teams.
Strong understanding of system architecture, technical communication, and organizational influence.
Experience working with large, modular iOS applications, including UIKit and Objective-C codebases.
Knowledge of build systems, continuous integration and delivery, testing infrastructure, and mobile performance optimization.
Experience supporting high-trust environments such as financial services, commerce, or related fields.
Familiarity with bitcoin, stablecoin, and non-custodial wallet technologies is preferred.
Demonstrated ability to lead strategic initiatives with broad organizational impact.
Excellent mentoring, collaboration, and communication skills for cross-team engagement.
Responsibilities
Design, develop, and maintain iOS applications related to bitcoin, stablecoins, and non-custodial wallets across platforms including Cash App, Square, and Bitkey.
Own complex features end-to-end, including architecture design, service integration, testing, deployment, and post-launch improvements.
Collaborate with product and design teams to shape customer journeys, prototype new features, and translate open questions into actionable plans.
Create prototypes, reference implementations, and critical paths to validate new ideas and directions.
Contribute to open-source bitcoin and stablecoin projects to add value to the broader community.
Influence technical strategy within the product area by making explicit tradeoffs and managing dependencies with other teams.
Improve architecture and shared components to enhance development speed, safety, and consistency across products.
Implement automated testing, observability, and safe rollout practices, ensuring security, privacy, and compliance standards are met.
Integrate AI-assisted development tools into workflows to enhance productivity and software quality.
Lead cross-team architecture and design reviews, surface systemic risks, and mentor engineers to foster technical growth.
Partner with engineers, product managers, designers, and leaders to align technical investments with business goals.
Represent bitcoin iOS development in cross-team and company-wide technical discussions, communicating complex decisions clearly.
Benefits
Remote work flexibility to support work-life balance and productivity.
Comprehensive medical insurance plans to ensure health and well-being.
Flexible time off policies to promote personal and family needs.
Retirement savings plans to secure your financial future.
Modern family planning support, including parental leave and related benefits.
Opportunities for professional growth through training, mentorship, and involvement in innovative projects.
Access to cutting-edge technology and tools to facilitate your work and development.
A collaborative and inclusive workplace culture emphasizing diversity and equal opportunity.
Equal Opportunity
Block is an equal opportunity employer committed to fostering an inclusive environment for all employees and applicants. We evaluate all individuals without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, age, disability, or any other legally protected status. We consider qualified applicants with arrest or conviction records in accordance with applicable laws and "fair chance" ordinances.
We are dedicated to providing reasonable accommodations throughout the recruitment process and strive to create a workplace where everyone can thrive. Our goal is to build a diverse team that reflects the communities we serve and promotes innovation through varied perspectives and experiences.