Software Engineer III – Mobile

Stone

. Works on problems with broad or loosely defined scope .

Posted 9/29/2026full-timeRemote • BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in mobile software development with a strong command of mobile architecture patterns, including MVVM and MVI. Proficient in integrating React Native modules with native platforms and contributing to architecture decisions and tooling improvements.

Highest-signal resume keywords

Mobile Software DevelopmentKotlin Multiplatform (KMP)Compose Multiplatform (CMP)Mobile Architecture Patterns (MVVM, MVI)Integration of REST APIs

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Mobile Software DevelopmentKotlin Multiplatform (KMP)Compose Multiplatform (CMP)Mobile Architecture Patterns (MVVM)Mobile Architecture Patterns (MVI)Data StructuresTestable CodeUnit TestingIntegration TestingIntegration of REST APIs

Soft Skills

Autonomous Decision-MakingCollaborationTechnical Mentorship

Tools & Technologies

React NativeCompose MultiplatformDatadogAmplitude

Industry Keywords

Mobile DevelopmentCross-Functional CollaborationCode ReviewsSolution DesignObservability Tools

Tech Stack

Tools & technologies

AndroidiOSKotlinReactReact Native

About the role

Key responsibilities & impact

Works on problems with broad or loosely defined scope
Works autonomously and makes decisions about solution details
Primarily collaborates with the immediate team and cross-functional teams
Collaborates with Android and iOS (KMP) teams and integrates React Native modules with native platforms
Builds interfaces with Compose Multiplatform, understanding the boundaries between shared UI and platform-specific requirements
Contributes to architecture decisions, development standards, and tooling improvements within the mobile team
Participates in the solution design process
Participates in code reviews and supports the technical growth of more junior engineers

Requirements

What you’ll need

3+ years of relevant professional experience in mobile software development (Android or iOS)
Strong command of mobile architecture patterns (MVVM and MVI)
Hands-on experience with data structures (lists, mappers, hash maps)
Ability to write testable code, including unit and integration tests
Experience integrating systems (REST APIs, networking, and local data persistence)
Previous experience with Kotlin Multiplatform (KMP) and/or Compose Multiplatform (CMP) in a production environment is a plus
Knowledge of observability tools such as Datadog and Amplitude is a plus

Benefits

Comp & perks

Base Salary
Variable Compensation Package* (profit sharing, long-term incentives, or commission)
Health and Dental Insurance with copayments
Verde Virtual Hospital: telemedicine team available 24/7
Prescription medication subsidy
Meal and/or Food Allowance – Pluxee*
Childcare Assistance (for children up to 5 years and 11 months old)
Assistance for Employees with Children with Disabilities
Life Insurance
Fuel or Commuting Allowance*
Home Office Allowance* (for Hybrid or Remote contracts only)
Welcome Kit for New Parents
SESC Partnership*
Education Benefit – Internal self-development platform (Studa and Stone Library)
Acolhe360º – Free emotional support
Quick Massage and On-site Medical Clinic*
Optional benefits: Wellhub, TotalPass, Pet Club, Flash, Férias&Co, transportation voucher, Allya, and educational partnerships