Senior Mobile Developer ( Kotlin and Android SDK )

Ciandt; Brasil; Remote; BRL 180,000 - 240,000; Full time

Job summary

CI&T is seeking a Senior Android Developer to join our Brazil team to build modern mobile solutions for large enterprise clients. You will lead Kotlin-based Android applications, mentor engineers, and drive architecture decisions that scale across multiple products.

You will collaborate with product, design, and QA teams to deliver reliable features, optimize performance, and ensure code quality. Fluency in English required and a passion for mobile excellence.

Qualifications

• Fluent English is required.
• Solid experience with Kotlin and Android SDK.
• Practical knowledge of Jetpack Compose, MVVM, Room, and DI (Hilt or Dagger).
• Good understanding of mobile architecture and testing practices.

Responsibilities

• Build and evolve Android apps using Kotlin and Jetpack Compose.
• Help define and promote best practices for architecture, testing, and code quality.
• Lead code reviews and technical discussions.
• Collaborate with Product, Design, and QA teams to deliver features with high reliability.
• Monitor app performance and contribute to scalable architecture decisions.
• Mentor junior and mid-level developers on the team.

Skills

Kotlin and Android SDK

Jetpack Compose

MVVM

Room

Dependency injection (Hilt or Dagger)

Mobile architecture & testing

Job description

Senior Mobile Developer ( Kotlin and Android SDK )

Brazil

At CI&T, we help large enterprises transform the potential of AI into real business impact with AI Deployment, AI-native execution, and tech-integrated business solutions.

With 30 years of experience in technological transformation, we accelerate innovation with expertise in Agentic SDLC, Application modernization, Data & AI, Martech and Business strategy.

We are 8,000 CI&Ters across more than 25 countries, collaborating to build solutions with real impact. AI is already part of how we work, evolve, and innovate every day.

Mission

We are looking for a Senior Android Developer to join our team in building modern, scalable mobile solutions for one of the leading technology companies in the U.S. construction industry. You’ll work on applications that support large infrastructure projects like roads, bridges, and airports. Your role will also include making key technical decisions and mentoring other engineers on the team.

What you’ll do

• Build and evolve Android apps using Kotlin and Jetpack Compose
• Help define and promote best practices for architecture, testing, and code quality
• Lead code reviews and technical discussions
• Collaborate with Product, Design, and QA teams to deliver features with high reliability
• Monitor app performance and contribute to scalable architecture decisions
• Mentor junior and mid-level developers on the team

What we expect

• Fluent English
• Solid experience with Kotlin and Android SDK
• Practical knowledge of Jetpack Compose, MVVM, Room, and dependency injection with Hilt or Dagger
• Good understanding of mobile architecture and testing practices