Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Kotlin Coding Specialist - Freelance AI Trainer Project

$35 per hour
Part-time

Invisible Technologies

Job Application for Kotlin Coding Specialist - Freelance AI Trainer Project at Meridial
Back to jobs
Kotlin Coding Specialist - Freelance AI Trainer Project
World Wide - Remote
Are you a Kotlin expert eager to shape the future of AI? Large-scale language models are evolving from chatbots into powerful developer assistants capable of reasoning about complex software systems. With high-quality engineering data, tomorrow’s AI can support developers in solving real-world problems faster and more accurately. That training data begins with you—your coding expertise will help power the next generation of AI.
We’re looking for Kotlin specialists who can take real-world engineering scenarios—such as bug reports or feature requests in a Git repository—and produce clean, efficient, and idiomatic solutions using the Kotlin programming language. You’ll create high-quality code patches that reflect modern Android development practices and ensure technical correctness, maintainability, and clarity.
You should have hands-on experience with modern Android and Kotlin development, including Jetpack Compose, Kotlin Coroutines, and Jetpack libraries such as Room, WorkManager, Datastore, ViewModel, and Hilt. Familiarity with build.gradle configuration, dependency management, and networking libraries such as Ok Retrofit, and Coil is also important. Experience with Android multimedia tools (CameraX, ExoPlayer, Media3) is a plus.
On a typical day, you’ll evaluate AI-generated code, correct errors, implement optimized Kotlin solutions, and document best practices that demonstrate modern Android design patterns and coding conventions.
A strong background in Android software development is required, with demonstrable experience building and maintaining production-level Kotlin applications. Clear, structured communication and the ability to explain technical decisions are essential.
We offer a pay range of $35+ per hour, with the exact rate determined after evaluating your experience, expertise, and geographic location. Final offer amounts may vary from the pay range listed above. As a contractor, you’ll supply a secure computer and high-speed internet; company-sponsored benefits such as health insurance and PTO do not apply.
Job title: Master - Kotlin Coding Specialist – AI Trainer
Employment type: Contract
Workplace type: Remote
Seniority level: Mid - Senior Level
Apply for this job
*
indicates a required field
First Name
*
Last Name
*
Email
*
Phone
Country
*
Phone
*
Location (City)
*
Locate me
Resume/CV
*
Attach
Attach
Dropbox
Google Drive
Enter manually
Enter manually
Accepted file types: pdf, doc, docx, txt, rtf
Education
School
Select...
Degree
*
Select...
Discipline
*
Select...
Start date year
*
End date year
*
Add another
What country are you currently a resident of?
*
Select...
If you are currently based in United States, please confirm your current state of residence. If you are based outside of the United States, select "I am not located in the United States".
*
Select...
LinkedIn Profile
*
Please acknowledge that you have read and agree to our Privacy Policy.
*
Yes
By clicking "Submit Application", you agree to Invisible's
Privacy Policy
.
Submit application
Powered by
Greenhouse

Vacancy posted a month ago
Similar jobs that could be interesting for youBased on the Kotlin Coding Specialist - Freelance AI Trainer Project in San Francisco, CA vacancy
  • $8 - $65 per hour

     ...Job Application for STEM Specialist (Fluent in Dutch) - Freelance AI Trainer Project at Meridial Back to jobs STEM Specialist (Fluent in Dutch) - Freelance...  ...design experience, data analysis projects, or coding portfolios signal fit. Clear, metacognitive communication... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Immediate start
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  •  ...Job Application for PHP Coding Specialist - Freelance AI Trainer Project at Meridial Back to jobs PHP Coding Specialist - Freelance AI Trainer Project United States of America a Are you a coding expert fluent in PHP eager to shape the future of AI? Large... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Immediate start
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  • $10 - $30 per hour

     ...Job Application for Information Specialist - Freelance AI Trainer Project at Meridial Back to jobs Information Specialist - Freelance AI Trainer Project United States of America Project Overview We are sourcing independent Information Specialists to provide... 
    Freelance
    Project
    Hourly pay
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    25 days ago
  •  ...Job Application for Vocal Audio Specialist - Freelance AI Trainer Project at Meridial Back to jobs Vocal Audio Specialist - Freelance AI Trainer Project United States of America Project Overview We are sourcing independent Vocal Audio Specialists to provide... 
    Freelance
    Project
    Hourly pay
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    19 days ago
  •  ...Job Application for Literature Specialist – Freelance AI Trainer Project at Meridial Back to jobs Literature Specialist – Freelance AI Trainer Project World Wide - Remote Are you a literature expert eager to shape the future of AI? Large-scale language models... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    25 days ago
  • $8 - $65 per hour

     ...Job Application for Korean-Japanese Bilingual Specialist - Freelance AI Trainer Project at Meridial Back to jobs Korean-Japanese Bilingual Specialist - Freelance AI Trainer Project World Wide - Remote Are you a bilingual professional fluent in Korean and Japanese... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work
    Worldwide

    Invisible Technologies

    San Francisco, CA
    25 days ago
  • $50 - $75 per hour

     ...Job Application for Legal Counsel Specialist - Freelance AI Trainer Project at Meridial Back to jobs Legal Counsel Specialist - Freelance AI Trainer Project United States of America Are you a seasoned attorney eager to shape the future of AI? Large-scale language... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    25 days ago
  • $8 - $65 per hour

     ...Job Application for Thai Voice Acting Specialist - Freelance AI Trainer Project at Meridial Back to jobs Thai Voice Acting Specialist - Freelance AI Trainer Project World Wide - Remote Target Profile: Near-Native Proficiency in Thai Project Overview:... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  • $8 - $30 per hour

     ...Job Application for LaTeX Specialist - Freelance AI Trainer Project at Meridial Back to jobs LaTeX Specialist - Freelance AI Trainer Project World...  ...Fixing broken markdown elements, including unclosed code blocks, inaccurate language tags, headers, and list numbering... 
    Freelance
    Project
    Hourly pay
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  •  ...Job Application for Pavement Condition Index (PCI) Survey & Annotation Specialist – Freelance AI Trainer Project at Meridial Back to jobs Pavement Condition Index (PCI) Survey & Annotation Specialist – Freelance AI Trainer Project World Wide - Remote Are you... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  •  ...Job Application for Italian Audio Evaluations Specialist - Freelance AI Trainer Project at Meridial Back to jobs Italian Audio Evaluations Specialist - Freelance AI Trainer Project World Wide - Remote Project Overview We are sourcing independent Audio Evaluation... 
    Freelance
    Project
    Hourly pay
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  • $11 - $30.65 per hour

    Responsibilities Create and execute role-play–based evaluation scenarios that simulate realistic customer service interactions across multiple domains, including: Flight bookings and travel support Financial services Telecommunications and technical support...
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  • $8 - $65 per hour

     ...Job Application for Korean-Japanese Bilingual Specialist - Freelance AI Trainer Project at Meridial Back to jobs Korean-Japanese Bilingual Specialist - Freelance AI Trainer Project World Wide - Remote Are you a bilingual professional fluent in Korean and Japanese... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work
    Worldwide

    Invisible Technologies

    San Francisco, CA
    a month ago
  •  ...Job Application for Drone Systems Specialist – Freelance AI Trainer Project at Meridial Back to jobs Drone Systems Specialist – Freelance AI Trainer Project United States of America We are seeking a highly skilled specialist with deep experience in drone systems... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  • $60 per hour

     ...Application for CVE & Application Security AI Task Auditor - Freelance AI Trainer Project at Meridial Back to jobs CVE...  ...sourcing experienced technical specialists in CVE and Application Security to...  ...vulnerability assessment, secure coding practices, and threat modeling).... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  •  ...Job Application for Graphic Designer Specialist - Freelance AI Trainer Project at Meridial Back to jobs Graphic Designer Specialist - Freelance AI Trainer Project World Wide - Remote Are you an experienced graphic designer eager to shape the future of AI? Large... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    a month ago
  •  ...Remote is seeking a Business and Management Specialist for a freelance AI trainer project. You will engage the model with business scenarios and strategic exercises, assessing realism and usefulness while documenting errors and suggesting improvements. Ideal candidates... 
    Freelance
    Project
    Hourly pay
    Contract work
    Remote work
    Flexible hours

    Remote

    San Francisco, CA
    1 day ago
  •  ...management and eager to shape the future of AI? Large-scale language models are...  ...principles, organizational behavior, project management, marketing,...  ...Job title: Business and Management Specialist – Freelance AI Trainer Project Employment type: Freelance... 
    Freelance
    Project
    Hourly pay
    Contract work
    For contractors
    Remote work

    Remote

    San Francisco, CA
    1 day ago
  • $8 - $65 per hour

     ...eager to shape the future of AI? Large‑scale language models are...  ...AI. We’re looking for HR specialists who live and breathe talent acquisition...  ...like compliance with labor codes, workplace investigations,...  ...(Fluent in French) – AI Trainer Employment type: Contract... 
    Freelance
    Project
    Hourly pay
    Contract work
    For contractors
    Remote work

    Remote

    San Francisco, CA
    1 day ago
  • $20 per hour

     ...$20/hr Shaping the Future of AI With Your Simplified Chinese...  ...with your expertise and the project. Work whenever and wherever you...  ...media." Netherlands Language Specialist - Dutch Since I started working...  ...platform. Because this is a freelance opportunity, we do not offer... 
    Freelance
    Project
    Weekly pay
    Extra income
    Contract work
    Internship
    Work from home
    Worldwide
    Flexible hours

    Outlier

    San Francisco, CA
    2 days ago
  •  ...part of Welocalize, is a global AI data company with 500,000+ contributors...  ...for Korean Bilingual Audio Specialists to join an upcoming audio recording project . You’ll use your native fluency...  ...Details: Employment Type: Freelance / Independent Contractor Location... 
    Freelance
    Project
    For contractors
    Remote work
    Worldwide
    Flexible hours

    Remote

    San Francisco, CA
    1 day ago
  • $90 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...labeling, model-evaluation, or structured code-review work. Pixel-perfect design-to-code...  ...background. More than one completed Mercor project and availability in contiguous multi-hour... 
    Project
    Contract work
    Summer work
    Local area
    Remote work

    Mercor

    San Francisco, CA
    23 days ago
  • $200k - $250k

     ...ClientOur client is building AI agents for the food manufacturing...  ...startup, company, or your own project. You can articulate what you...  ...directional, not rigid requirements:* Kotlin + Spring Boot* React & Next.js...  ...+ Anthropic* Budget for the coding agent of your choice##... 
    Project
    Kotlin

    Fuel Talent

    San Francisco, CA
    3 days ago
  • $250k - $400k

     ...Dscout AI Training & EvalsDscout AI Training & Evals builds human...  ...React, Elixir, Python, Swift, Kotlin; SOC 2 and HITRUST certified),...  ...work AI-native. Agents write code, evals gate changes, and we...  ...propose bold directions, and take projects from first hypothesis through... 
    Project
    Kotlin
    Internship
    Remote work
    Flexible hours

    dscout

    San Francisco, CA
    2 days ago
  • $55 - $65 per hour

     ...technical talent with leading AI research labs. Headquartered in...  ...- Android Studio on macOS - Code Type: Contract Compensation...  ...Android applications using Kotlin and Java . Capture and...  ...and asynchronously to meet project deadlines. Collaborate with... 
    Project
    Kotlin
    Contract work
    Summer work
    Remote work

    Mercor

    San Francisco, CA
    28 days ago
  •  ...Job Application for Language Alignment & Resource Partner (Nepali) - Freelance AI Trainer Project at Meridial Back to jobs Language Alignment & Resource Partner (Nepali) - Freelance AI Trainer Project World Wide - Remote Project Overview We are sourcing... 
    Freelance
    Project
    Hourly pay
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    25 days ago
  • $15 - $30 per hour

     ...Job Application for Audio Editor for Dialogue / Audio Post-Production - Freelance AI Trainer Project at Meridial Back to jobs Audio Editor for Dialogue / Audio Post-Production - Freelance AI Trainer Project World Wide - Remote Audio Editor for Dialogue / Audio... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Remote work

    Invisible Technologies

    San Francisco, CA
    25 days ago
  •  ...and strategists at Story, and C++, AI/ML, media pipeline and...  ...: portfolio reviews and paid test projects for creatives; technical screens, coding and system design interviews for engineers...  ...offers, employment agreements and freelancer or contractor agreements for both... 
    Freelance
    Project
    Full time
    For contractors

    Story Inc

    San Francisco, CA
    4 days ago
  • $500 per unit

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Position: Software Developers: Share Your AI Coding Sessions Type: Contract Compensation...  ...Build features on your own real project using the open-weight and Gemini models we... 
    Project
    Contract work
    Summer work
    Immediate start
    Remote work
    Flexible hours

    Mercor

    San Francisco, CA
    3 days ago
  •  ...Job Application for Garment Manufacturing QC Specialist - Freelance AI Trainer Project at Meridial Back to jobs Garment Manufacturing QC Specialist - Freelance AI Trainer Project World Wide - Remote Are you experienced in garment manufacturing quality control... 
    Freelance
    Project
    Hourly pay
    Contract work
    Part time
    For contractors
    Immediate start
    Remote work
    Worldwide

    Invisible Technologies

    San Francisco, CA
    25 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Kotlin Coding Specialist - Freelance AI Trainer Project. Be the first to apply!