Senior iOS Engineer at ARQ in London, United Kingdom, Poland, United States, United Kingdom
- Company: ARQ
- Location: London, United Kingdom, Poland, United States, United Kingdom
- Posted: Sep 25, 2026
- Type: Full-time
- Experience: 5+ years
Overview
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.
Job description
- 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.
Responsibilities
- 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.
Requirements
- 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.
Skills
Required
- Swift
- Testing practices
- UI/UX design
- Code review
- Performance optimization
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