Mobile Engineer

🕒 June 23

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Sezzle

WebsiteLinkedInAll Job Openings

201 - 500 employees

Founded 2016

💳 Fintech

👥 B2C

🛍️ eCommerce

Fintech • B2C • eCommerce

Sezzle is a financial technology company that offers a "buy now, pay later" service, allowing consumers to purchase products and pay for them in four interest-free installments over six weeks. The Sezzle app provides users with a flexible financing alternative to traditional credit cards, enabling instant approval decisions without impacting credit scores. Sezzle partners with various top brands, including Amazon, Walmart, and Target, to offer in-app and in-store payment options. The company's mission is to empower consumers financially by providing more financial freedom and control. It is available as a mobile app, with millions of downloads and high user ratings, and works towards accessibility and inclusion on its platform.

📋 Description

• Help own and build out new features within our cross-platform TypeScript React Native app, and Golang backend APIs. • Manage our releases, using tools like cohorting, feature flags, and app-store infrastructure to ensure a safe rollout to our millions of active users. • Maintain a strong working relationship with product, design, and the business to ensure stakeholder needs are being evaluated and met. • Work with the team to continuously build clean, scalable, robust, and testable code. • Develop a deep working knowledge of your application, data domain, and KPIs.

🎯 Requirements

• 3+ years of professional mobile development experience, with at least 2+ years in React Native or similar technology such as Flutter. • Experience working with native code on iOS (Swift/ObjC) and Native Android (Kotlin/Java). • Experience developing and delivering a mobile application to Apple and Google’s mobile app stores. • Deep understanding of React Native architecture, hooks, context, navigation patterns, and performance optimization. • Strong familiarity with unit testing, integration testing, and E2E testing (Jest, React Native Testing Library, Detox, Appium, etc.). • Ability to lead features end-to-end — from requirements, design, implementation, deployment, monitoring, and improvement. • Experience mentoring junior or mid-level engineers. • Capable of performing high-quality code reviews with focus on maintainability, clarity, and best practices. • Drives technical decisions, proposes improvements, and elevates code quality across the team. • Works well with product managers, designers, backend teams, and QA. • Bachelor's degree in computer science. • Demonstrated experience working with Claude or equivalent large language model tools is required; candidates must be comfortable leveraging AI to enhance productivity, research, and communication. • Knowledge of mobile CI/CD pipelines (Fastlane, Bitrise, GitHub Actions, etc.).