Kotlin Coding Specialist – Freelance AI Trainer

Invisible Technologies

. Take real-world engineering scenarios such as bug reports or feature requests in Git repositories and produce clean, efficient, idiomatic Kotlin solutions .

Posted 11/4/2026contractRemote • ArgentinaMid-LevelSenior💰 $35 per hourWebsite

Core Competencies

Role fit

Core Competencies

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

Demonstrates expertise in Kotlin and modern Android development, with a strong focus on producing clean, efficient code and implementing best practices in software design. Capable of evaluating and optimizing AI-generated code while maintaining high standards of technical correctness and maintainability.

Highest-signal resume keywords

Kotlin ExpertiseAndroid DevelopmentJetpack ComposeKotlin CoroutinesNetworking Libraries

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

KotlinAndroid DevelopmentCode OptimizationCode DocumentationBug FixingFeature ImplementationProduction-Level Application DevelopmentDependency ManagementTechnical CorrectnessMaintainability

Soft Skills

Clear CommunicationStructured Explanation

Tools & Technologies

Jetpack LibrariesRoomWorkManagerDatastoreViewModelHiltOkHttpRetrofitCoil

Industry Keywords

Modern Android PracticesCoding ConventionsDesign Patterns

Tech Stack

Tools & technologies

AndroidGradleKotlin

About the role

Key responsibilities & impact

Take real-world engineering scenarios such as bug reports or feature requests in Git repositories and produce clean, efficient, idiomatic Kotlin solutions
Create high-quality code patches reflecting modern Android development practices
Ensure technical correctness, maintainability, and clarity
Evaluate AI-generated code and correct errors
Implement optimized Kotlin solutions
Document best practices demonstrating modern Android design patterns and coding conventions

Requirements

What you’ll need

Kotlin expertise and hands-on experience with modern Android and Kotlin development
Experience with Jetpack Compose, Kotlin Coroutines, and Jetpack libraries including Room, WorkManager, Datastore, ViewModel, and Hilt
Familiarity with build.gradle configuration and dependency management
Familiarity with networking libraries such as OkHttp, Retrofit, and Coil
Experience building and maintaining production-level Kotlin applications
Strong background in Android software development
Clear, structured communication and ability to explain technical decisions
Geographic location considered in determining the exact rate

Benefits

Comp & perks

Pay range of $35+ per hour
As a contractor, you’ll supply a secure computer and high-speed internet