Software Engineer III – Mobile

Stone & Company

. Deliver high-value outcomes by participating directly in technical refinement .

Posted 9/22/2026full-timeRemote • BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in mobile software development with a focus on Kotlin Multiplatform and Compose Multiplatform, while effectively collaborating with cross-functional teams to deliver impactful solutions. Proficient in mobile architecture patterns and committed to maintaining high development standards through code reviews and mentoring.

Highest-signal resume keywords

Mobile Software DevelopmentKotlin Multiplatform (KMP)Compose Multiplatform (CMP)MVVM Architecture PatternsREST APIs Integration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Mobile Software DevelopmentKotlin Multiplatform (KMP)Compose Multiplatform (CMP)MVVM Architecture PatternsData StructuresUnit TestingIntegration TestingSystem IntegrationNetworkingLocal Data Persistence

Soft Skills

CollaborationTechnical MentorshipProblem Solving

Industry Keywords

Technical RefinementSolution DesignCode ReviewsDevelopment StandardsCross-Functional Teams

Tech Stack

Tools & technologies

AndroidiOSKotlinReactReact Native

About the role

Key responsibilities & impact

Deliver high-value outcomes by participating directly in technical refinement
Work on problems with broad or loosely defined scope
Contribute to technical decisions and participate in the solution design process
Develop software solutions that create a positive impact for Brazilian customers and entrepreneurs
Work primarily with the immediate team and cross-functional teams
Collaborate with Android, iOS, and React Native teams to integrate KMP modules with native platforms
Build interfaces with Compose Multiplatform, understanding the boundaries between shared UI and platform-specific requirements
Contribute to architecture decisions, development standards, and tooling improvements within the mobile team
Participate in code reviews and support the technical growth of junior engineers

Requirements

What you’ll need

3+ years of relevant professional experience in mobile software development (Android or iOS)
Proficiency in mobile architecture patterns (MVVM)
Hands-on experience with data structures (lists, mappers, hash maps)
Experience writing testable code, including unit and integration tests
Experience with system integration, including 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

Benefits

Comp & perks

Fixed salary
Variable compensation package* (profit sharing, long-term incentive plan, or commission—provided based on role eligibility; employees cannot choose the compensation model)
Health and dental insurance with copayments (except for employees with disabilities, who are not subject to copayments)
Verde Virtual Hospital: telemedicine team available 24 hours a day, 7 days a week
Medication subsidy
Meal and/or food allowance – Pluxee*
Childcare allowance (for children up to 5 years and 11 months old)
Allowance for children with disabilities
Life insurance
Fuel or commuting allowance*
Home office allowance* (for Hybrid or Remote contracts only)
Welcome kit for new parents
SESC membership*
Education benefit – Internal self-development platform (Studa and Stone Library)
Acolhe360º – Free emotional support
Quick massage and on-site clinic*
Optional benefits: Wellhub – TotalPass – Pet Club – Flash – Férias&Co – Transportation Voucher – Allya – Educational partnerships