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Sizanid Staffing Himalayas · Posted 1mo ago

Mobile App Developer

Canada USD Contractor

Mobile App Development iOS Development Android Development Cross Platform Development
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Indexed description

Reports To: Engineering Manager, Mobile Lead, or CTO

Salary: depends on experience and Location

Open: to contract/ freelancer/ project-based/ full time/ part time

Contract Length: 3- 6 months

About the Opportunity

Our Client is a Tech Startup and is hiring an experienced Mobile App Developers to design, build, and maintain high‑quality mobile applications. This role is ideal for a developer who combines strong technical expertise with a user‑centric mindset and thrives in fast‑paced, collaborative environments.

THIS IS PROJECT BASED CONTRACTOR ROLE

Key Responsibilities

  • Develop, test, and deploy mobile applications for iOS, Android, or cross‑platform environments depending on project needs.
  • Build and maintain payment integration features, including secure transaction flows, third‑party payment SDKs, and compliance with platform and industry standards.
  • Collaborate with product managers, designers, and backend teams to translate requirements into functional, intuitive mobile experiences.
  • Integrate mobile applications with APIs, third‑party services, and backend systems.
  • Optimize applications for performance, responsiveness, and scalability across devices.
  • Troubleshoot, debug, and resolve issues throughout the development lifecycle.
  • Maintain clean, well‑documented, and reusable code following best practices and coding standards.
  • Participate in code reviews and contribute to continuous improvement of development processes.
  • Manage app store submissions, updates, and release cycles for iOS and/or Android.
  • Stay current with emerging mobile technologies, frameworks, and industry trends.

Requirements

  • 2–5+ years of professional experience in mobile application development.
  • Proficiency in one or more of the following:
  • iOS: Swift, SwiftUI, Objective‑C, Xcode
  • Android: Kotlin, Java, Android Studio
  • Cross‑Platform: React Native, Flutter, Dart
  • Experience integrating payment gateways or SDKs (Stripe, PayPal, Apple Pay, Google Pay, Braintree, etc.).
  • Strong understanding of mobile UI/UX principles and platform guidelines.
  • Experience integrating REST APIs, JSON, and third‑party SDKs.
  • Familiarity with Git or other version control systems.
  • Ability to work collaboratively with cross‑functional teams and communicate technical concepts clearly.

Preferred Qualifications

  • Experience with CI/CD pipelines for mobile deployments.
  • Knowledge of mobile security best practices, authentication, and data protection.
  • Experience with Firebase, AWS Mobile, or Azure Mobile services.
  • Background in Agile/Scrum development environments.
  • Prior experience publishing apps to the App Store or Google Play.
  • Familiarity with PCI‑compliant development practices.

Core Competencies

  • Problem‑solving and analytical thinking
  • Strong attention to detail
  • Creativity in designing user‑friendly mobile experiences
  • Clear communication and teamwork
  • Ability to manage multiple tasks and deadlines
  • Adaptability in evolving technical environments

Originally posted on Himalayas

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