CrawlJobs Logo

Android App Developer – Jetpack Compose & Kotlin

sigma.se Logo

Sigma Group

Location Icon

Location:
United States , Bay Area

Category Icon

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

80000.00 USD / Year

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

Additional Information:

Job Posted:
May 09, 2026

Expiration:
June 30, 2026

Employment Type:
Fulltime
Work Type:
On-site work
Job Link Share:

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Android App Developer – Jetpack Compose & Kotlin

Android Developer

Join us in building the future of finance. Our mission is to democratize finance...
Location
Location
Canada , Toronto
Salary
Salary:
119000.00 - 140000.00 CAD / Year
robinhood.com Logo
Robinhood
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 1.5+ years of professional Android development experience building consumer Android applications at scale, preferably in Kotlin and Compose
  • Attention to detail, passion for writing clean, readable and maintainable code
  • Proficiency in Kotlin or Java, and Jetpack
  • Motivation to improve Robinhood’s app and codebase to ensure the highest quality for our customers
  • Strong product sense and ability to collaborate with Product Managers and Designers
  • Excellent communication skills and passion for solving technical challenges
  • Bachelor’s degree in Computer Science or a related field preferred
  • equivalent training or work experience also acceptable
Job Responsibility
Job Responsibility
  • Work with a fast-growing team to revolutionize finance at speed and scale
  • Build smooth, stable, and elegant products with Kotlin and the newest Android APIs
  • Own features from inception to design, implementation, and launch
  • Work cross-functionally with Product Designers, Product Managers, Backend Developers, and Data team
  • Work with Kotlin, Android SDK & Jetpack Compose, MVVM, Coroutines & Flow (preferred) OR RxJava, and Retrofit & Room
What we offer
What we offer
  • Market competitive and pay equity-focused compensation structure
  • 100% paid health insurance for employees with 90% coverage for dependents
  • Annual lifestyle wallet for personal wellness, learning and development, and more
  • Lifetime maximum benefit for family forming and fertility benefits
  • Dedicated mental health support for employees and eligible dependents
  • Generous time away including company holidays, paid time off, sick time, parental leave, and more
  • Lively office environment with catered meals, fully stocked kitchens, and geo-specific commuter benefits
Read More
Arrow Right

Senior Android Developer

As an Android Developer, you will play a key role in designing, developing, and ...
Location
Location
North Macedonia; Croatia , Skopje; Zagreb; Split
Salary
Salary:
Not provided
basicagency.com Logo
BASIC/DEPT®
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Minimum of 5 years of professional experience in Android development
  • Strong proficiency in Kotlin and modern Android architecture using Jetpack Compose
  • Experience with CI/CD pipelines (preferably Bitrise or Github Actions)
  • Experience with unit and integration testing
  • Hands-on experience with GraphQL for efficient data fetching
  • Solid understanding of Android frameworks and the full mobile development lifecycle
  • Familiarity with SOLID programming principles and design patterns (such as MVVM)
  • Proven problem-solving skills and ability to work independently
  • Excellent communication skills in English, both written and spoken
  • Ability to collaborate effectively with cross-disciplinary teams
Job Responsibility
Job Responsibility
  • Collaborate closely with cross-functional teams to design, develop, and deliver high-quality mobile applications
  • Translate complex design specifications and client requirements into functional, user-friendly Android features
  • Continuously improve app performance, usability, and reliability to enhance the overall user experience
  • Stay ahead of industry trends and emerging technologies to propose innovative solutions and improvements
  • Ensure code quality by adhering to best practices, including SOLID principles and design patterns like MVVM
  • Participate in the full mobile development lifecycle, from concept and design to testing and deployment
  • Take ownership of the end product, proactively identifying and resolving issues to maintain app stability
  • Communicate effectively with team members and stakeholders to align development efforts with business goals
  • Mentor and support junior developers, fostering a collaborative and knowledge-sharing environment
What we offer
What we offer
  • Hybrid working policy, 5 days per month in the office
  • Contribution to your health through the OpenUp platform and access to private health insurance
  • Refreshments are provided in the office all week
  • Certified B Corp®
  • Named ‘Agency of the Year’ at both The Lovies and The Webby Awards
  • Opportunity to work with clients of all sizes and across all industries
  • Training, development and certifications
  • Global annual DEPT® Cares Month in which employees come together and donate their skills to support local charities
Read More
Arrow Right

Senior Android Developer

Join us in building the future of finance. Our mission is to democratize finance...
Location
Location
Canada , Toronto
Salary
Salary:
145000.00 - 170000.00 CAD / Year
robinhood.com Logo
Robinhood
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • At least 5+ years of professional Android development experience
  • Proficiency with Java or Kotlin
  • Motivation to improve Robinhood’s app and codebase to ensure the highest quality for our customers
  • Strong product sense and ability to collaborate with Product Managers and Designers
  • Experience leading teams, mentoring colleagues, and managing technical projects
  • Excellent communication skills and passion for solving technical challenges
  • Bachelor’s degree in Computer Science or a related field preferred
  • equivalent training or work experience also acceptable
Job Responsibility
Job Responsibility
  • Work with a fast-growing team to revolutionize finance at speed and scale
  • Build smooth, stable, and elegant products with Kotlin and the newest Android APIs
  • Own features from inception to design, implementation, and launch
  • Work cross-functionally with Product Designers, Product Managers, Backend Developers, and Data team
  • Work with Kotlin, Android SDK & Jetpack Compose, MVVM, Coroutines & Flow (preferred) OR RxJava, and Retrofit & Room
What we offer
What we offer
  • Market competitive and pay equity-focused compensation structure
  • 100% paid health insurance for employees with 90% coverage for dependents
  • Annual lifestyle wallet for personal wellness, learning and development, and more
  • Lifetime maximum benefit for family forming and fertility benefits
  • Dedicated mental health support for employees and eligible dependents
  • Generous time away including company holidays, paid time off, sick time, parental leave, and more
  • Lively office environment with catered meals, fully stocked kitchens, and geo-specific commuter benefits
  • Fulltime
Read More
Arrow Right

Principal Engineer, Software - Android

At T-Mobile, we invest in YOU! Our Total Rewards Package ensures that employees ...
Location
Location
United States , Bellevue; Denver; Overland Park; Frisco
Salary
Salary:
133500.00 - 240700.00 USD / Year
https://www.t-mobile.com Logo
T-Mobile
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 7+ years technical engineering experience
  • Experience in mobile software development using Kotlin, Jetpack Compose or Android SDK
  • Developing sophisticated Android mobile applications
  • Experience building a scalable customer facing application used by millions of customers
  • Provide on-call and in-person support for troubleshooting, isolation, maintenance, operations, patching, incident management, problem management, build and deployments for owned software and systems
  • Hands on experience in developing mobile networking, REST web-services, understanding large and complex code bases that involves mobile, backend and external SDK integration
  • Designing mobile application using VIPER, Factory, DAO, MVVM, MVC, Delegate, Builder, Adapter, Singleton and Facade design patterns and architecture
  • Experience in API design, SDK architecture, and mobile software lifecycle development practices
  • BS degree in Computer Science, Information Technology, or equivalent experience
  • Communication
Job Responsibility
Job Responsibility
  • Drives projects with the Product, UX/UI and Backend teams to design, build and extend consumer facing new products, platforms, and features
  • Improve product quality through code reviews, writing effective unit tests
  • Ability to digest feature requirements and high-level end to end design to guide in coding approach and work breakdown
  • Ability to produce a low-level design document to detail feature implementation
  • Presents project improvement scenarios to management for consideration
  • Lead development team in building native functionality with optimization and expansion to support T-Mobile’s Digital First mission
  • Present highly technical concepts to both technical and non-technical decision-makers
  • Continuously learns, builds content, and guides others specific subject areas
  • Informally coaches and gives to the development of others through mentoring or in house workshops and learning sessions
  • Develops engineers across functional teams on technology decisions
What we offer
What we offer
  • Competitive base salary and compensation package
  • Annual stock grant
  • Employee stock purchase plan
  • 401(k)
  • Access to free, year-round money coaches
  • Medical, dental and vision insurance
  • Flexible spending account
  • Paid time off
  • Up to 12 paid holidays
  • Paid parental and family leave
  • Fulltime
Read More
Arrow Right

Android Engineer

Clear Street is modernizing the brokerage ecosystem. We are seeking a skilled An...
Location
Location
Sweden , Umeå
Salary
Salary:
Not provided
clearstreet.io Logo
Clear Street
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Hands-on professional experience developing and maintaining Android applications with high requirements on performance, usability, and reliability
  • Bachelor’s degree or higher in Computer Science, Software Engineering, or a related field
  • Proficiency in Kotlin, and experience with Jetpack Compose and the Android SDK
  • Experience integrating apps with REST APIs and collaborating with backend teams
  • Strong attention to detail with a focus on design consistency and user experience
  • Experience supporting and monitoring production applications using modern tools
  • Motivation to learn, curiosity to explore new technologies, and ability to work independently in a fast-paced environment
  • Understanding of financial markets, asset classes, and the technical demands of building financial systems is valued
  • Experience mentoring others or leading initiatives is considered an advantage
Job Responsibility
Job Responsibility
  • Shaping Clear Street’s evolving mobile platform
  • Contributing to the design and development of our Android application
  • Influencing architectural decisions and help set best practices
  • Ensuring Android experience meets high standards
  • Working closely with Clear Street Studio (product design and research team) and iOS engineers to deliver a cohesive mobile experience
  • Partnering with engineering and business stakeholders to design new mobile solutions
  • Integrating with backend systems
  • Delivering a world-class user experience
What we offer
What we offer
  • Competitive compensation, benefits, and perks
  • Fulltime
Read More
Arrow Right

Principal Android Engineer

As a Principal Mobile Software Engineer, you will help innovate and streamline h...
Location
Location
United States , Boston
Salary
Salary:
189000.00 - 210000.00 USD / Year
simplisafe.com Logo
SimpliSafe
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 15+ years of software development experience
  • 8+ years of native mobile development experience on Android (experience with iOS, React Native, or modern JS/TS frameworks a plus)
  • Deep knowledge of Android application architecture (MVVM, Clean Architecture, Jetpack libraries, Compose, Fragments, Navigation, etc.)
  • 5+ years of Kotlin and/or Java development
  • Proven ability to drive architectural decisions and scale complex mobile systems used by large user bases
  • Strong track record as a technical leader and mentor, fostering a culture of excellence and continuous learning
  • Excellent communication and influence skills — able to guide teams and align diverse stakeholders
  • Passion for high-quality, reliable software that protects and empowers users in their homes
Job Responsibility
Job Responsibility
  • Architect efficient, reusable, and scalable Android systems using modern frameworks such as Jetpack Compose and Kotlin Coroutines
  • Drive technical excellence across multiple Android feature teams through architecture reviews, shared tooling, and design patterns
  • Partner with iOS and Web platform leads to align mobile architecture and ensure a consistent cross-platform user experience
  • Collaborate closely with Product, Design, and Backend teams to translate customer needs into elegant, reliable mobile solutions
  • Lead key technical initiatives such as build system optimization, CI/CD improvements, and observability instrumentation
  • Mentor and develop senior Android engineers through coaching, design reviews, and hands-on pairing
  • Advocate and implement best practices for code quality, testing, performance, and accessibility
  • Influence long-term technical direction for SimpliSafe’s mobile ecosystem — helping define what “best-in-class” means for security app experiences
What we offer
What we offer
  • A mission- and values-driven culture and a safe, inclusive environment where you can build, grow and thrive
  • A comprehensive total rewards package that supports your wellness and provides security for SimpliSafers and their families
  • Free SimpliSafe system and professional monitoring for your home
  • Employee Resource Groups (ERGs) that bring people together, give opportunities to network, mentor and develop, and advocate for change
  • Participation in our annual bonus program, equity, and other forms of compensation, in addition to a full range of medical, retirement, and lifestyle benefits
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - Android

As a Senior Android Engineer at Blinq, you’ll take the lead in evolving our Andr...
Location
Location
Australia , Sydney; Melbourne
Salary
Salary:
Not provided
blinq.me Logo
Blinq Technologies
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of Android engineering experience
  • Expert-level Kotlin skills
  • Deep understanding of Android internals
  • Track record of building and maintaining complex mobile apps in production
  • Solid knowledge of Android architecture patterns like MVVM, MVP, or Clean Architecture
  • Experience leading projects, making technical decisions, and mentoring junior team members
  • A degree in Computer Science, Software Engineering, or a related field
Job Responsibility
Job Responsibility
  • Lead development of key features in the Blinq Android app
  • Drive architectural improvements that scale with our global user base
  • Partner closely with product, design, and backend teams
  • Mentor other engineers, lead code reviews, and champion quality
  • Contribute to internal tooling, CI/CD improvements, and performance optimisation efforts
What we offer
What we offer
  • Equity & ownership
  • Competitive salary & growth path
  • Generous paid time off
  • Parental leave that grows with you
  • Free food
  • Fulltime
Read More
Arrow Right

Staff Android Engineer

OpenSea is the gateway to web3’s next chapter—where NFTs, fungible tokens, and e...
Location
Location
United States
Salary
Salary:
180000.00 - 270000.00 USD / Year
opensea.io Logo
OpenSea
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Expert-level proficiency in modern Android development practices
  • Experience with Kotlin Multiplatform and Jetpack Compose is a significant plus, though not a strict requirement
  • Solid understanding of GraphQL and Apollo for networking within mobile applications
  • Demonstrated ability to build and maintain high-quality, performant, and scalable Android apps from scratch
  • Hands-on experience with real-time data updates and complex UI interactions
  • Proven track record of adopting and leveraging AI tools to accelerate development productivity
  • Comfortable working in a fast-paced, collaborative environment with a focus on shipping polished features
  • Prior experience in fintech or crypto-related products preferred
  • High ownership mentality
Job Responsibility
Job Responsibility
  • Develop and maintain high-quality, performant Android applications from the ground up using modern Kotlin and Jetpack Compose
  • Collaborate closely with product, design, and engineering teams to build seamless, user-friendly mobile experiences
  • Take ownership of features from conception through deployment
  • Contribute to the architecture and evolution of the mobile codebase, including Kotlin Multiplatform components where applicable
  • Integrate with GraphQL APIs and implement real-time data updates to deliver dynamic and responsive user interfaces
  • Advocate for and adopt AI-assisted development tools to accelerate productivity and improve code quality
  • Participate in code reviews, mentoring, and knowledge sharing to elevate the overall mobile engineering practice
  • Help shape the future direction of OpenSea's mobile platform by providing technical leadership and innovative solutions
What we offer
What we offer
  • Health Benefits: We cover 100% Dental/Vision/Medical for employees and 90% for dependents
  • Flexible Time Off Policy
  • Parental Leave: 16 Weeks of Paid Parental Bonding & up to 8 additional weeks for the birthing parent
  • Mental Health: We offer access to Spring Health, covering 8 therapy & 8 coaching sessions per year
  • 11 Company Holidays
  • Fidelity 401K Plan
  • Internet/Mobile Reimbursement Plan
  • Reimbursement or Monthly Snack Delivery
  • Company & Team retreats to get together for fun and collaboration
  • Team Member Co-Working and Gathering Expense
  • Fulltime
Read More
Arrow Right