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Sigma Group Logo Sigma Group · IT - Software Development

Android App Developer – Jetpack Compose & Kotlin

United States, Bay Area 80000.00 USD / Year · Job Posted May 09, 2026
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Job Description

We are seeking a highly skilled Android App Developer with strong expertise in Kotlin and Jetpack Compose to support rapid prototyping and development of modern mobile applications, particularly optimized for small-screen user experiences in downtown San Francisco. You will work on cutting-edge products and technologies. You will collaborate with cross-disciplinary experts across mobile, embedded, and system domains. You have the opportunity to drive innovation through rapid prototyping and development

Job Responsibility

  • Design and develop Android applications using Kotlin and Jetpack Compose
  • Build rapid prototypes and proofs-of-concept for new product ideas, focusing on fast iteration cycles
  • Create intuitive, responsive UIs optimized for small-screen devices
  • Collaborate closely with cross-functional teams (UX, backend, embedded teams)
  • Translate product requirements into functional and scalable mobile solutions
  • Ensure high performance, responsiveness, and usability of applications
  • Participate in code reviews, design discussions, and continuous improvement initiatives
  • Debug and resolve issues related to application behavior and performance
  • Maintain clean, modular, and reusable code following best practices

Requirements

  • 5+ years of experience in Android application development
  • Strong proficiency in: Kotlin
  • Jetpack Compose
  • Experience building and deploying Android apps end-to-end
  • Solid understanding of: Android architecture (MVVM, Clean Architecture)
  • REST APIs and data handling
  • Experience with rapid prototyping / MVP development
  • Strong focus on UI/UX for constrained or small displays
  • Proficiency with version control systems (Git)

Nice to have

  • Experience with edge devices, embedded systems, or connected products
  • Familiarity with Android frameworks and services for scalable applications
  • Knowledge of performance optimization and memory management
  • Experience working in an engineering services or consulting environment
  • Exposure to Agile/Scrum development methodologies
  • Strong problem-solving and analytical skills
  • Ability to work in fast-paced, client-facing environments
  • Excellent communication and collaboration skills
  • Adaptability to changing requirements and priorities
  • Team player
  • Proactiveness in collaborating and execution
  • Flexibility to switch technical context
  • Willingness to learn new methods/tools/processes
  • Ability to prioritize, multitask, and take ownership
  • Strong problem-solving and critical-thinking skills
  • Strong communication and interpersonal skills

What we offer

  • Paid Time off/Vacation and Paid Holidays
  • 401(k)
  • 401(k) matching
  • Life insurance
  • Flexible Spending Account (FSA): Healthcare and Dependent Care
  • Health Savings Account (HSA)
  • Paid Parental Leave
  • Paid Bereavement Leave
  • Employee Assistance Program
  • Employee and Customer Referral Program
  • For positions in California, long-term and short-term disability insurance
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