SENIOR IOS Swift Software Engineer

Sadient; San Francisco (CA); On-site; USD 200,000 - 280,000; Full time

Benefits offered by this job

Competitive salary

Impactful projects

Mobile architecture lead

Ground floor role

Job summary

Sadient, a San Francisco-based fintech company, is hiring a Senior iOS Engineer to lead mobile client development for a global consumer finance app. You will architect the iOS app, set engineering standards, and deliver a high-performance, secure mobile experience.

Join a senior team working on a cross-border payments platform built around stablecoins with immediate impact. This on-site role offers a substantial cash package and the chance to shape technical vision from day one.

Qualifications

• Five+ years of experience building consumer iOS apps.
• Proficient in native iOS development using Swift.
• Experience designing scalable, high-performance mobile architectures.

Responsibilities

• Architect the iOS application and establish engineering standards.
• Lead mobile client development and contribute to cross-platform roadmap.
• Build a high-performance, secure mobile experience from the ground up.

Skills

Mobile Development

iOS Development

Swift

Job description

San Francisco, United States | Posted on 08/10/2026

Compensation: 200k to 280k USD No equity

Experience Required: 5 plus years

Employment Type: Full Time

Job Location: San Francisco, CA, USA

Work Model: In-office

Relocation:Allowed

Skills Required: Mobile Development, iOS Development, Swift

About the Job

We are building a consumer finance application for emerging markets in partnership with large global distribution partners. The product is a joint virtual banking and cryptocurrency wallet that enables users worldwide to move seamlessly within a unified financial ecosystem.

Stablecoins are transforming cross border payments and creating an opportunity to rebuild financial infrastructure for billions of people who need better financial access.

The team is senior only, fast moving, and well funded, led by founders with successful exits. Every hire directly shapes product direction and delivers immediate impact on global financial inclusion.

Role Overview

We are seeking a Senior iOS Engineer to lead mobile client development. The product roadmap includes Android and mobile friendly web applications, providing opportunities to expand impact across platforms.

You will architect the iOS application, establish engineering standards, and build a high performance, reliable, and secure mobile experience from the ground up. This role may evolve into a mobile lead position across platforms as the organization scales.

Requirements

• Five plus years of experience building and shipping consumer facing iOS applications
• Strong expertise in native iOS development using Swift
• Experience designing scalable and high performance mobile architectures

Bonus Qualifications

• Experience building applications for Latin American markets
• Experience in financial technology
• Strong design sense and attention to user experience
• Full stack engineering experience with ability to collaborate across backend and frontend teams

What We Offer

• 200k to 280k USD cash compensation with no equity requirement
• Immediate Day 1 impact on products used by millions globally
• Opportunity to shape technical vision and mobile architecture
• Ground floor role in the rapidly expanding stablecoin ecosystem