Senior iOS Engineer, Neighborhoods

Since we opened our doors in 2009, the world of commerce has evolved immensely, and so has Square. After enabling anyone to take payments and never miss a sale, we saw sellers stymied by disparate, outmoded products and tools that wouldn't work together.

So we expanded into software and started building integrated, omnichannel solutions – to help sellers sell online, manage inventory, offer buy now, pay later functionality, book appointments, engage loyal buyers, and hire and pay staff. Across it all, we've embedded financial services tools at the point of sale, so merchants can access a business loan and manage their cash flow in one place. Afterpay furthers our goal to provide omnichannel tools that unlock meaningful value and growth, enabling sellers to capture the next generation shopper, increase order sizes, and compete at a larger scale.

Today, we are a partner to sellers of all sizes – large, enterprise-scale businesses with complex operations, sellers just starting, as well as merchants who began selling with Square and have grown larger over time. As our sellers grow, so do our solutions. There is a massive opportunity in front of us. We're building a significant, meaningful, and lasting business, and we are helping sellers worldwide do the same.

The Role

Launched in October 2025, Neighborhoods is a new network between Cash App and Square that gives local businesses the ability to offer online ordering with the power of a mobile app. Sellers get their own branded storefront, accessible on both web and inside Cash App. Customers can seamlessly order ahead, reorder, earn rewards and stay connected to support the businesses they love. With 4 million sellers using Square and 57 million monthly active accounts on Cash App, we have a unique opportunity to connect local sellers and local customers in their area. Learn more about Neighborhoods in the 2025 Fall Square Release announcement.

As a senior iOS engineer on the Neighborhoods team, you will help bring the vision of the neighborhood network to life. You will shape the technical direction for Neighborhoods mobile experiences across Cash App and Square Point of Sale, while staying hands-on with the systems and features that help customers discover and support local businesses. You will lead cross-team technical decisions, work across organizational boundaries with teams in Square and Cash App, and help other engineers deliver reliable, high-quality product experiences.

We are a small, collaborative and remote-friendly team. We believe in people over process, value authenticity and openness, and have a bias for action. Come join us!

You Will

Lead major Neighborhoods mobile workstreams across Cash App and Square

Lead major mobile workstreams within a company-level initiative to redefine local commerce and connect the Square and Cash App ecosystems

Drive cross-team architecture and execution with teams across Square and Cash App to deliver seamless integration of Neighborhoods loyalty, marketing, and ordering features in Cash App running on Square's platform

Shape the mobile systems that connect customer discovery in Cash App with seller ordering and fulfillment workflows in Square Point of Sale

Stay hands-on in iOS development using SwiftUI, Workflow, and related technologies across the Square Point of Sale and Cash App codebases, making tradeoffs that keep mobile experiences reliable, scalable, and polished

Partner with backend, web, and Android engineers to ship features with a focus on quality and craft, while mentoring engineers and raising the technical bar for the team

Work cross-functionally with product managers and designers to define product scope, sequence ambiguous work, and make clear technical and product tradeoffs

Lead as an AI-native product engineer

Use AI tools as a native part of feature development: exploring unfamiliar codebases, prototyping product ideas, accelerating implementation, generating tests, improving observability, and tightening documentation

Identify, teach, and scale practical AI-assisted workflows for product engineering, especially in cross-codebase feature work, migration, debugging, QA, experimentation, and rapid iteration

Apply strong judgment around AI-generated work: verify behavior, protect customer trust, preserve maintainability, and use AI to raise the team's technical bar

Model how a senior engineer uses AI to multiply impact without losing product taste, architectural ownership, or accountability for the systems we ship

Qualifications

8+ years of relevant experience with iOS engineering design and implementation, including deep Swift and Objective-C experience

Experience leading iOS architecture with unidirectional data flow, declarative UI frameworks, and scalable mobile patterns

Experience leading medium-to-large, multi-person mobile initiatives that cross team boundaries, from ambiguous problem framing through delivery, including applying AI tools thoughtfully to improve engineering speed, quality, and learning

Proven ability to work across team boundaries and disciplines to deliver remarkable solutions to customers

Track record shaping team mission and roadmap, rallying others around technical direction, and mentoring engineers to their scope and impact

Technologies We Use and Teach

SwiftUI, UIKit, Swift Concurrency, Combine

Protocol Buffers

Bazel for our build environment

AI tools including Cursor, Claude Code, Goose

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.