Lead iOS Software Engineer

Our Mission

We are building the financial system for the next century. One where control sits in the hands of customers — not banks. Where money moves on rails that are faster, smarter, and radically more efficient. Where wealth management tools help you grow your savings for decades — and build generational wealth. Where fewer intermediaries mean more value stays where it belongs: in our customers’ pockets.

We operate with long-term ambition and absolute conviction. We are not here to iterate on the past — we are here to redesign it. This is a defining moment to join us.

We are building what we believe will become one of the most important financial institutions in the world. That requires exceptional talent, relentless standards, and people who care deeply about the work. At ARQ, we are turning the financial system upside down — starting in the Americas. We are nimble, but ambitious. We move fast, learn fast, and innovate relentlessly. Technology is our greatest ally, and execution is our edge. We build as a team. We think long term. We aim for world-class in everything we do. If you are exceptional at what you do — and ready to help redefine finance — we’d love to meet you. Are you ready to build what comes next?

About the team

We believe that small teams with the best talent outcompete massive companies with mediocre capabilities. That's why we have gathered a set of people who have done it before at iconic companies like Revolut, Uber, Amazon, Block and UBS: we owned some of the most loved and profitable products, delivered top-notch transaction processing platforms, created beautiful mobile applications - and helped them become profitable companies that changed the lives of millions of people.

In our quest to reshape the global financial system we have raised tens of millions of dollars from leading investors like Sequoia Capital, Founders Fund, Brevan Howard Digital, Y Combinator and Kaszek Ventures.

What We’re Looking For

We’re looking for a Lead iOS Software Engineer who is a world-class hands-on builder. You’ll set the bar for engineering excellence, lead by example through code reviews and architecture design, and inspire a growing mobile team to deliver elegant, reliable, and beautiful experiences that define what financial products should feel like.

This is a high-impact role on our Core Product Team, where you’ll help build and scale the ARQ experience - from our flagship app to new initiatives such as Premium, Credit, and other innovative financial products in the pipeline.

What You’ll Be Doing

• Be the hands-on technical expert for all things iOS - writing world-class code, performing code reviews, and ensuring technical excellence across the app.

• Collaborate with Product and Design to craft pixel-perfect user experiences with exceptional attention to detail, performance, and reliability.

• Architect, build, and maintain scalable mobile features that are secure, fast, and delightful to use.

• Review code, share insights, and elevate the quality of engineering across the app.

• Drive the evolution of our mobile architecture to support a multi-product environment (Premium, Credit, and more).

• Collaborate closely with cross-functional teams to ship quickly while maintaining uncompromising quality.

• Own the full lifecycle of your features - from design and implementation to testing and deployment.
  

What You’ll Need

• 6+ years of professional experience in iOS development, ideally building complex, high-scale consumer products.

• Proven expertise in Swift and Apple’s iOS ecosystem (UIKit, SwiftUI, Combine, etc.).

• Strong understanding of design patterns, architecture (MVVM, Clean Architecture), and testing practices.

• Deep passion for UI/UX craftsmanship - you care deeply about the small details that make products amazing.

• Proven ability to deliver outstanding products end-to-end in fast-moving, high-growth environments.

• Bonus: Experience in fintech, payments, or digital banking.