Sr Software Engineer (Mobile)

The Sr. Software Engineer (Mobile) designs, develops, and maintains the mobile version of VEXIS - VizyPay’s proprietary CRM platform. This is a ground-floor (0?1) product mandate: the role owns mobile architecture and delivery end-to-end, from the technology approach recommendation through distribution in the Apple App Store and Google Play Store. As a hands-on individual contributor with technical mentorship responsibilities, the role establishes VizyPay’s mobile engineering standards. Operating in a security- and compliance-driven payments environment, the role is accountable for a secure, performant, and reliably released mobile experience in production.

Mobile Architecture & Technical Leadership

• Own the architecture, security, and performance of VEXIS mobile across iOS and Android; lead the native vs. cross-platform evaluation and own the recommendation, weighing cost, performance, maintainability, and alignment with VizyPay’s existing TypeScript/Angular engineering stack.
• Define and enforce mobile engineering standards - project structure, state management, offline-first data, testing, and accessibility - and mentor engineers through code reviews, pairing, and design reviews as a hands-on individual contributor.
• Work within an Agile software development environment, collaborating closely with Product, Engineering, UX/UI, and other stakeholders throughout the software development lifecycle using Agile methodologies and best practices; align the mobile roadmap with platform architecture, security controls, and product roadmaps in partnership with Information Technology (Infrastructure & Security, Software Engineering).

Engineering & Delivery

• Design, develop, and maintain the VEXIS mobile application: API integration with backend services (REST, WebSockets), push notifications (APNs/FCM), offline-first synchronization, and a responsive, performant user experience.
• Build and operate mobile CI/CD and release management (e.g., Azure DevOps, GitHub Actions, fastlane): automated builds, code signing, and store submission workflows through App Store Connect and Google Play Console, with staged rollouts and release-health monitoring.
• Implement automated testing across the mobile stack (e.g., XCTest, Espresso, Detox, Appium, Maestro) with quality gates; monitor crash and performance data (e.g., Firebase Crashlytics, Sentry) to drive root cause resolution.

Security & Compliance

• Engineer the application secure-by-design, aligned with PCI DSS and OWASP MASVS/MASTG: secure storage (Keychain/Keystore), certificate pinning, secure token and session handling, and least-privilege API access.
• Partner with InfraSec on mobile threat modeling, logging, monitoring, and audit readiness; operate all production releases under formal change management with audit-ready change records.

• Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent experience required.
• Required 5+ years of professional software engineering experience with a strong mobile emphasis, including 3+ years shipping and operating production mobile applications distributed through the Apple App Store and Google Play Store, with accountability for quality, performance, and outcomes.
• Certifications: Google Associate Android Developer (AAD), App Development with Swift Associate, App Development with Swift Certified User, or equivalent certifications, preferred.
• Experience in security- or compliance-constrained environments (e.g., PCI DSS, SOC 2, or financial services regulation), delivering under formal SDLC and change management within Agile development environments.
• Proven ability to translate business and product requirements into shipped mobile capabilities with measurable outcomes, and to explain complex concepts to technical and non-technical stakeholders.
• Expertise with mobile platforms: production iOS and Android development - native toolchains (Swift/SwiftUI, Kotlin/Jetpack Compose) and/or cross-platform frameworks (e.g., React Native, Flutter, Ionic/Capacitor).
• Mobile testing: automated unit, UI, and end-to-end testing (e.g., XCTest, Espresso, Detox, Appium, Maestro) with quality gates.
• Secure mobile engineering: OWASP MASVS/MASTG, secure storage (Keychain/Keystore), certificate pinning, and secure token and session handling.
• Release engineering: App Store Connect and Google Play Console submission and review workflows, code signing, staged rollouts, and release management tooling (e.g., fastlane).
• Expertise in CI/CD and tooling: pipeline engineering with Azure DevOps and/or GitHub Actions; development in VS Code or platform IDEs; strong Git fluency.
• Experience with API integration: RESTful services, real-time patterns (e.g., WebSockets), efficient client-side caching, push notifications (APNs/FCM), and offline-first data synchronization.
• Observability: crash and performance monitoring (e.g., Firebase Crashlytics, Sentry) and release-health analysis.
• Strong TypeScript/JavaScript and computer science fundamentals (data structures, algorithms, design patterns) applied to production codebases.
• Track record of technical leadership: mentoring, code and design review, or engineering standards ownership.

VizyPay is leading the technology-payment processing space. Our culture is built on trust, transparency, technology, and talent. We are the voice for business owners, putting money back in their pockets and eliminating up to 100% of their processing fees.

It’s time to love what you do and be your authentic self! Yes, we hold each other accountable. If you’re successful, we’re all successful - this is why we #workhardplayhard so #LFG #TeamVizy!