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Stax Bill · 2 months ago

Lead Software Engineer, Mobile Platform

Orlando, FL

Full-time

Onsite

Senior Level, Lead/Staff

7+ years exp

Stax Bill is a company focused on empowering merchants through technology, and they are seeking a Lead Software Engineer for their mobile platform. This role involves owning the architectural vision and technical strategy for the mobile ecosystem, while also mentoring a talented team and developing core mobile applications and SDKs.

Information TechnologySaaSSoftware

Growth Opportunities

Responsibilities

Architect, develop, and maintain Stax's core mobile product offerings, including the 'Stax Pay' apps (iOS/Android), public-facing payment SDKs (Kotlin/Swift), and payment terminal integrations

Act as the key technical partner for product teams to architect and deliver new features across our mobile, card reader, and terminal platforms

Drive integrations with Android-based hardware devices and ensure seamless performance across environments

Enhance and support mobile-centric technologies including tokenization scripts, backend services, and terminal customizations

Define and champion the coding standards, architectural patterns, and best practices that ensure quality and consistency across all mobile development

Mentor and guide engineers across teams on mobile platform technologies and SDK usage

Maintain and continuously improve developer documentation for SDKs and integrations

Translate business requirements into technical specifications, collaborating with product managers and external partners to define roadmaps and ensure alignment

Own the end-to-end mobile app distribution process, from publishing and updates to managing all interactions with the Apple App Store and Google Play Store review teams

Qualification

Mobile developmentSDK developmentAndroid (Kotlin) expertiseIOS (Swift) expertiseTechnical leadershipMobile app distributionProblem-solving skillsMentorshipFinTech backgroundMobile testing frameworksJavaScript/TypeScript

Required

Bachelor's degree in Computer Science or equivalent practical experience

7+ years of professional mobile development, with deep expertise in Android (Kotlin) or iOS (Swift) and strong proficiency in the other

3+ years of experience working on a mobile product that served at least tens of thousands of weekly active users

A minimum of 2 years in a technical leadership role (e.g., Project Lead, Senior Engineer with mentorship duties) overseeing complex, multi-layered mobile projects

Experience leading or mentoring teams in SDK and mobile platform development

Track record of managing widely distributed SDKs with versioning, backward compatibility, and developer adoption in mind

Familiarity with mobile app distribution processes and review team interactions for both Apple App Store and Google Play Store

Experience managing platform-specific capabilities that cross-platform frameworks cannot fully support, such as Bluetooth permissions, networking, background services, push notifications, and secure storage

Strong expertise with at least one mobile package manager (e.g., Cocoapods for iOS or Maven Central/Gradle for Android) to support SDK commercialization and distribution

Proven ability to foster a collaborative and supportive team environment through empathetic leadership, mentorship, and constructive feedback, as demonstrated by professional references from former colleagues

Strong problem-solving skills and demonstrated ability to work across diverse technologies

Preferred

Experience integrating with Android-based payment terminals (e.g., Dejavoo, Verifone)

Background in FinTech or payments technology

Familiarity with Cocoapods, CI/CD pipelines (Gradle, Fastlane), and Firebase (e.g., push notifications)

Familiarity with mobile testing frameworks and developer experience tooling

2+ years of experience with frontend or backend JavaScript/TypeScript applications

Benefits

Impact: You’ll be at the heart of our mobile strategy, building technology that directly empowers merchants to run their businesses.

Growth: We're committed to your professional development with opportunities to learn new technologies and take on greater leadership responsibilities.

Culture: Join a collaborative, innovative, and supportive team that values curiosity and a passion for building great software.