Software Engineer III – POS
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Job Description
Engenheiro Android desenvolvendo o App Vender e integrações POS na Stone, empresa brasileira de tecnologia e serviços financeiros. Garantindo vendas, cobranças, NFC-e e impressão confiáveis.
Responsibilities:
- Develop and maintain the Vender App modules and shared libraries
- Ensure flawless operation of the critical workflow, from the sale and payment collection through NFC-e issuance and printing
- Continuously integrate modules with POS platform SDKs
- Prevent duplicate payment issues and failures at the point of sale
- Work with payment terminals, embedded systems, printers, readers, and hardware SDKs as applicable
- Collaborate in an environment that values teamwork, flexibility, continuous development, and solutions for Brazilian entrepreneurs
Requirements:
- Strong experience in native Android development with Kotlin (required); sufficient Java knowledge to navigate legacy code
- Deep knowledge of Coroutines and Flow, including scopes, cancellation, StateFlow/SharedFlow, backpressure, and testing asynchronous flows
- Strong command of software architecture (MVVM, MVI, Clean Architecture) and SOLID principles, with the ability to explain trade-offs
- Experience with modularization and Gradle in multi-module projects, including version catalogs, flavors, build types, and buildConfigField
- Experience with dependency injection using Hilt/Dagger in a multi-module project
- Knowledge of Jetpack Compose, state management, recomposition, performance, and testability, with the ability to work comfortably with legacy XML
- Experience with persistence and networking: local SQL (SQLDelight or Room), Retrofit/OkHttp, offline-first strategies, synchronization, and connectivity failure handling
- Experience with unit and integration testing, mocks/fakes, ViewModel, and Flow (MockK, Turbine, or equivalent tools)
- Knowledge of Android Services and lifecycle management: BroadcastReceiver, background services, WorkManager/ForegroundService
- Experience with Git and CI/CD, trunk-based development and release branches, and configuring or troubleshooting pipelines
Benefits:
- Variable Compensation Package* (Profit Sharing, Long-Term Incentive, or Commission – provided according to role eligibility and not available as a free choice of model)
- Medical and dental insurance with co-payments (except for employees with disabilities, who are not required to make co-payments)
- Verde Virtual Hospital: telemedicine team available 24 hours a day, 7 days a week
- 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 clinic*
- Optional benefits: Wellhub, TotalPass, Pet Club, Flash, Férias&Co, transportation voucher, Allya, and educational partnerships
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