Senior iOS Engineer — Build Scalable Fintech UX

Slips; United States; Remote; USD 140,000 - 200,000; Full time

Benefits offered by this job

Distributed working allowance

Paid time off & leave

Parental leave & support

Flexible working arrangement

Employee referral program

Job summary

Slips is seeking a Senior iOS Engineer to design, build, and scale the Slips iOS app, a core surface of our peer-to-peer platform. You’ll own end-to-end features, from concept to release, with a focus on performance and UX polish.

You’ll collaborate with product, design, backend, and data teams to shape architecture and best practices while mentoring engineers and shipping meaningful work based on user feedback.

Qualifications

• 5+ years of professional iOS development experience.
• Strong proficiency in Swift and modern iOS frameworks.
• Experience building and scaling production iOS apps.
• Deep understanding of iOS architecture patterns (MVVM, modularization).
• Strong grasp of performance optimization, memory management, and debugging.
• Experience working with APIs, real-time data, and asynchronous systems.
• High attention to detail in UI/UX and animation polish.
• Comfortable owning large features and making technical decisions.

Responsibilities

• Design, build, and maintain core features of the Slips iOS app
• Own end‑to‑end implementation of new product experiences, from concept to release
• Collaborate closely with product, design, backend, and data teams
• Optimize app performance, reliability, and responsiveness
• Help define and evolve our iOS architecture, tooling, and best practices
• Review code, mentor engineers, and raise the overall quality bar
• Ship frequently and iterate based on real user feedback

Skills

iOS development

Swift

Performance optimization

UI/UX

API integration

Code review & mentoring

Tools

Xcode

SwiftUI

Job description

Slips is seeking a Senior iOS Engineer to design, build, and scale the Slips iOS app, a core surface of our peer-to-peer platform. You’ll own end-to-end features, from concept to release, with a focus on performance and UX polish.

You’ll collaborate with product, design, backend, and data teams to shape architecture and best practices while mentoring engineers and shipping meaningful work based on user feedback.