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Senior iOS Engineer

arq · London

Open. First seen 14 June 2026.

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Description

What We’re Looking For

We’re looking for a Senior iOS Engineer who’s passionate about building elegant, reliable, and high-performance products that users love. You’ll be a hands-on engineer, contributing high-quality code and helping raise the bar for engineering standards across the team.

You’ll join our Core Product Team, helping to build and scale the ARQ experience — from our flagship iOS app to new product lines like Premium, Credit, and other financial products on the roadmap.

What You’ll Be Doing

  • Build and ship exceptional iOS experiences that are fast, intuitive, and delightful to use.
  • Write clean, maintainable, and performant Swift code using modern iOS frameworks.
  • Collaborate closely with Product, Design, and Backend teams to deliver features end-to-end.
  • Contribute to the architecture and evolution of the iOS app as it scales.
  • Own features from concept to launch, ensuring quality, polish, and reliability.
  • Participate in code reviews and help improve engineering standards and best practices.
  • Continuously improve app performance, stability, and user experience.

What You’ll Need

  • 5+ years of professional experience in iOS development, building apps used by thousands or millions of users.
  • Strong proficiency in Swift and the iOS ecosystem (UIKit, SwiftUI, Combine, etc.).
  • Solid understanding of architecture patterns (MVVM, Clean Architecture) and testing practices.
  • Strong ownership mindset and attention to detail when building user-facing products.
  • Passion for crafting high-quality UI/UX and polished user experiences.
  • Experience working in fast-paced environments, ideally in fintech or consumer tech startups.

Benefits

  • Competitive salary and benefits
  • Stock options, so you own part of what you build
  • Discretionary performance bonus
  • The latest tools and technology
  • A world-class team that will challenge and grow your skills
  • The opportunity to help build the best fintech app in Latin America
  • Office Policy: 3-4 days a week in-office

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