Staff iOS Software Engineer, Bitcoin

The posting, as Block wrote it

The Team

Bitcoin at Block builds products and platforms that help make bitcoin, stablecoins, and non-custodial wallets accessible to people around the world. We work across Cash App, Square, and Bitkey to create secure, reliable, high-quality mobile and hardware experiences used by millions of people.

We’re looking for an iOS engineer who loves building products and can move quickly through unfamiliar problems. You’ll work closely with product, design, and engineering partners to turn complex financial capabilities into clear, reliable customer experiences.

The Role

As a Staff iOS Engineer on Bitcoin, you will own the technical direction and delivery of a critical area of our iOS product experience with bitcoin and stablecoin. This is a hands-on role: you’ll prototype new ideas, make architectural decisions, write production code, and lead work through launch and ongoing improvement.

The work extends beyond the client. You’ll align product requirements with backend capabilities, resolve dependencies with partner teams, and make tradeoffs across customer experience, delivery speed, security, and reliability. You’ll personally tackle the hardest design and implementation problems while helping other engineers contribute effectively.

Your impact will come from shipping valuable products and making the next release better: fewer recurring problems, clearer interfaces, stronger testing, and practices the team can use independently.

You Will

Build and evolve the iOS product

• Build products in iOS related to bitcoin, stablecoin and non custodial wallets.
• Work across interfaces in Cash App, Square and Bitkey.
• Own complex features end to end, including client architecture, service integration, testing, rollout, and post-launch improvements.
• Work with product and design to shape customer journeys, prototype new interactions, and turn open questions into delivery plans.
• Build prototypes, reference implementations, and critical paths that prove a direction before broader adoption.
• Contribute bitcoin and stablecoin technology to open source when it creates value for the broader community.
• Influence the technical direction within the product area, making explicit tradeoffs and sequencing dependencies with adjacent teams.
• Improve architecture and shared components where they make product development faster, safer, or more consistent.
• Build automated testing, observability, and safe rollout practices into delivery, with security, privacy, and compliance safeguards appropriate to the risks.

Lead as an AI-fluent engineer

• Integrate AI-assisted development tools into daily workflows to drive leverage across bitcoin engineering.
• Evaluate emerging tools and practices, building durable, AI-powered capabilities where they add clear value.
• Verify AI-assisted outputs and ensure high standards for software quality, security, and reliability.
• Contribute to codebases beyond your iOS specialty.

Make the team more effective
[…]
ic area. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future.

To find a location’s zone designation, please refer to this resource . If a location of interest is not listed, please speak with a recruiter for additional information.

Zone A

$263,600 — $395,400 USD

Zone B

$263,600 — $395,400 USD

Zone C

$263,600 — $395,400 USD

Zone D

$263,600 — $395,400 USD

Application Guidelines

Candidates may submit up to 9 active applications within a 60-day period. Reapplications to the same role are accepted 90 days after a previous application has been reviewed.

Use of AI in Our Hiring Process

We may use automated AI tools to evaluate job applications for efficiency and consistency. These tools comply with local regulations, including bias audits, and we handle all personal data in accordance with state and local privacy laws.

Contact us here with hiring practice or data usage questions.

Every benefit we offer is designed with one goal: empowering you to do the best work of your career while building the life you want. Remote work, medical insurance, flexible time off, retirement savings plans, and modern family planning are just some of our offering. Check out our other benefits at Block.

Block, Inc. (NYSE: XYZ) builds technology to increase access to the global economy. Each of our brands unlocks different aspects of the economy for more people. Square makes commerce and financial services accessible to sellers. Cash App is the easy way to spend, send, and store money. Afterpay is transforming the way customers manage their spending over time. TIDAL is a music platform that empowers artists to thrive as entrepreneurs. Bitkey is a simple self-custody wallet built for bitcoin. Proto is a suite of bitcoin mining products and services. Together, we’re helping build a financial system that is open to everyone.

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